/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-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:51:57,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:51:57,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:51:57,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:51:57,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:51:57,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:51:57,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:51:57,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:51:57,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:51:57,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:51:57,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:51:57,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:51:57,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:51:57,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:51:57,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:51:57,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:51:57,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:51:57,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:51:57,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:51:57,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:51:57,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:51:57,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:51:57,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:51:57,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:51:57,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:51:57,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:51:57,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:51:57,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:51:57,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:51:57,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:51:57,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:51:57,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:51:57,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:51:57,301 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:51:57,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:51:57,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:51:57,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:51:57,356 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:51:57,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:51:57,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:51:57,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:51:57,361 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:51:57,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:51:57,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:51:57,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:51:57,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:51:57,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:51:57,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:51:57,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:51:57,364 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:51:57,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:51:57,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:51:57,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:51:57,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:51:57,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:51:57,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:51:57,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:51:57,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:51:57,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:51:57,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:51:57,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:51:57,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:51:57,367 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/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:51:57,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:51:57,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:51:57,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:51:57,831 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:51:57,834 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:51:57,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:51:57,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b98c0ddc/a54f3ce16bf548aa9835b98eccc9c461/FLAG416d656a3 [2020-12-22 08:51:58,781 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:51:58,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:51:58,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b98c0ddc/a54f3ce16bf548aa9835b98eccc9c461/FLAG416d656a3 [2020-12-22 08:51:59,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b98c0ddc/a54f3ce16bf548aa9835b98eccc9c461 [2020-12-22 08:51:59,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:51:59,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:51:59,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:51:59,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:51:59,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:51:59,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:51:59" (1/1) ... [2020-12-22 08:51:59,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46152441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:59, skipping insertion in model container [2020-12-22 08:51:59,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:51:59" (1/1) ... [2020-12-22 08:51:59,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:51:59,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:52:00,025 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13129,13142] [2020-12-22 08:52:00,069 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17629,17642] [2020-12-22 08:52:00,079 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18921,18934] [2020-12-22 08:52:00,086 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19679,19692] [2020-12-22 08:52:00,098 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21299,21312] [2020-12-22 08:52:00,105 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22057,22070] [2020-12-22 08:52:00,120 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23143,23156] [2020-12-22 08:52:00,145 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25682,25695] [2020-12-22 08:52:00,157 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26443,26456] [2020-12-22 08:52:00,165 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27532,27545] [2020-12-22 08:52:00,178 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29537,29550] [2020-12-22 08:52:00,200 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33460,33473] [2020-12-22 08:52:00,207 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34221,34234] [2020-12-22 08:52:00,214 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35314,35327] [2020-12-22 08:52:00,227 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37323,37336] [2020-12-22 08:52:00,248 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40926,40939] [2020-12-22 08:52:00,299 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[47803,47816] [2020-12-22 08:52:00,305 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48564,48577] [2020-12-22 08:52:00,312 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[49653,49666] [2020-12-22 08:52:00,324 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[51658,51671] [2020-12-22 08:52:00,347 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55047,55060] [2020-12-22 08:52:00,374 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60744,60757] [2020-12-22 08:52:00,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:52:00,845 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:52:00,970 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13129,13142] [2020-12-22 08:52:00,987 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17629,17642] [2020-12-22 08:52:00,994 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18921,18934] [2020-12-22 08:52:01,000 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19679,19692] [2020-12-22 08:52:01,007 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21299,21312] [2020-12-22 08:52:01,013 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22057,22070] [2020-12-22 08:52:01,018 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23143,23156] [2020-12-22 08:52:01,030 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25682,25695] [2020-12-22 08:52:01,035 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26443,26456] [2020-12-22 08:52:01,041 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27532,27545] [2020-12-22 08:52:01,053 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29537,29550] [2020-12-22 08:52:01,071 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33460,33473] [2020-12-22 08:52:01,077 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34221,34234] [2020-12-22 08:52:01,083 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35314,35327] [2020-12-22 08:52:01,093 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37323,37336] [2020-12-22 08:52:01,120 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40926,40939] [2020-12-22 08:52:01,155 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[47803,47816] [2020-12-22 08:52:01,160 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48564,48577] [2020-12-22 08:52:01,166 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[49653,49666] [2020-12-22 08:52:01,212 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[51658,51671] [2020-12-22 08:52:01,225 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55047,55060] [2020-12-22 08:52:01,247 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60744,60757] [2020-12-22 08:52:01,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:52:01,564 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:52:01,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01 WrapperNode [2020-12-22 08:52:01,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:52:01,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:52:01,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:52:01,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:52:01,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01" (1/1) ... [2020-12-22 08:52:01,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01" (1/1) ... [2020-12-22 08:52:01,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:52:01,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:52:01,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:52:01,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:52:01,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01" (1/1) ... [2020-12-22 08:52:01,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01" (1/1) ... [2020-12-22 08:52:01,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01" (1/1) ... [2020-12-22 08:52:01,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01" (1/1) ... [2020-12-22 08:52:01,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01" (1/1) ... [2020-12-22 08:52:01,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01" (1/1) ... [2020-12-22 08:52:01,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01" (1/1) ... [2020-12-22 08:52:02,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:52:02,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:52:02,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:52:02,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:52:02,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:52:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:52:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:52:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:52:02,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:52:06,356 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:52:06,357 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:52:06,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:52:06 BoogieIcfgContainer [2020-12-22 08:52:06,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:52:06,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:52:06,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:52:06,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:52:06,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:51:59" (1/3) ... [2020-12-22 08:52:06,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6279dbc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:52:06, skipping insertion in model container [2020-12-22 08:52:06,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:52:01" (2/3) ... [2020-12-22 08:52:06,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6279dbc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:52:06, skipping insertion in model container [2020-12-22 08:52:06,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:52:06" (3/3) ... [2020-12-22 08:52:06,370 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:52:06,377 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:52:06,383 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-12-22 08:52:06,404 INFO L253 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-12-22 08:52:06,440 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:52:06,440 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:52:06,440 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:52:06,440 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:52:06,440 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:52:06,441 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:52:06,441 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:52:06,441 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:52:06,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states. [2020-12-22 08:52:06,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-22 08:52:06,511 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:06,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:06,513 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:06,524 INFO L82 PathProgramCache]: Analyzing trace with hash -845723877, now seen corresponding path program 1 times [2020-12-22 08:52:06,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:06,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436633464] [2020-12-22 08:52:06,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:07,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:07,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436633464] [2020-12-22 08:52:07,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:07,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:52:07,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076870582] [2020-12-22 08:52:07,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:52:07,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:07,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:52:07,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:52:07,276 INFO L87 Difference]: Start difference. First operand 1124 states. Second operand 5 states. [2020-12-22 08:52:08,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:08,483 INFO L93 Difference]: Finished difference Result 1702 states and 2998 transitions. [2020-12-22 08:52:08,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:08,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-12-22 08:52:08,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:08,530 INFO L225 Difference]: With dead ends: 1702 [2020-12-22 08:52:08,531 INFO L226 Difference]: Without dead ends: 961 [2020-12-22 08:52:08,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:52:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2020-12-22 08:52:08,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2020-12-22 08:52:08,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 961 states. [2020-12-22 08:52:08,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1211 transitions. [2020-12-22 08:52:08,661 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1211 transitions. Word has length 85 [2020-12-22 08:52:08,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:08,662 INFO L481 AbstractCegarLoop]: Abstraction has 961 states and 1211 transitions. [2020-12-22 08:52:08,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:52:08,662 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1211 transitions. [2020-12-22 08:52:08,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 08:52:08,667 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:08,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:08,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:52:08,668 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:08,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:08,669 INFO L82 PathProgramCache]: Analyzing trace with hash -186491762, now seen corresponding path program 1 times [2020-12-22 08:52:08,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:08,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439679115] [2020-12-22 08:52:08,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:08,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439679115] [2020-12-22 08:52:08,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:08,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:52:08,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961692093] [2020-12-22 08:52:08,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:52:08,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:08,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:52:08,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:52:08,947 INFO L87 Difference]: Start difference. First operand 961 states and 1211 transitions. Second operand 6 states. [2020-12-22 08:52:09,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:09,988 INFO L93 Difference]: Finished difference Result 1874 states and 2467 transitions. [2020-12-22 08:52:09,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:09,989 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2020-12-22 08:52:09,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:10,000 INFO L225 Difference]: With dead ends: 1874 [2020-12-22 08:52:10,003 INFO L226 Difference]: Without dead ends: 1132 [2020-12-22 08:52:10,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:52:10,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2020-12-22 08:52:10,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1052. [2020-12-22 08:52:10,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-12-22 08:52:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1422 transitions. [2020-12-22 08:52:10,059 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1422 transitions. Word has length 86 [2020-12-22 08:52:10,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:10,060 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1422 transitions. [2020-12-22 08:52:10,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:52:10,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1422 transitions. [2020-12-22 08:52:10,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 08:52:10,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:10,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:10,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:52:10,065 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:10,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:10,067 INFO L82 PathProgramCache]: Analyzing trace with hash -217887072, now seen corresponding path program 1 times [2020-12-22 08:52:10,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:10,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862390364] [2020-12-22 08:52:10,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:10,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862390364] [2020-12-22 08:52:10,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:10,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:52:10,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884630127] [2020-12-22 08:52:10,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:52:10,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:10,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:52:10,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:52:10,217 INFO L87 Difference]: Start difference. First operand 1052 states and 1422 transitions. Second operand 6 states. [2020-12-22 08:52:11,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:11,179 INFO L93 Difference]: Finished difference Result 2303 states and 3170 transitions. [2020-12-22 08:52:11,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:11,179 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2020-12-22 08:52:11,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:11,187 INFO L225 Difference]: With dead ends: 2303 [2020-12-22 08:52:11,187 INFO L226 Difference]: Without dead ends: 1406 [2020-12-22 08:52:11,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:52:11,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1406 states. [2020-12-22 08:52:11,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1406 to 1326. [2020-12-22 08:52:11,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2020-12-22 08:52:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1841 transitions. [2020-12-22 08:52:11,264 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1841 transitions. Word has length 87 [2020-12-22 08:52:11,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:11,264 INFO L481 AbstractCegarLoop]: Abstraction has 1326 states and 1841 transitions. [2020-12-22 08:52:11,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:52:11,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1841 transitions. [2020-12-22 08:52:11,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 08:52:11,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:11,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:11,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:52:11,269 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:11,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:11,270 INFO L82 PathProgramCache]: Analyzing trace with hash 630572829, now seen corresponding path program 1 times [2020-12-22 08:52:11,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:11,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426464965] [2020-12-22 08:52:11,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:11,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:11,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426464965] [2020-12-22 08:52:11,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:11,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:52:11,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933673848] [2020-12-22 08:52:11,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:52:11,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:11,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:52:11,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:52:11,394 INFO L87 Difference]: Start difference. First operand 1326 states and 1841 transitions. Second operand 6 states. [2020-12-22 08:52:12,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:12,324 INFO L93 Difference]: Finished difference Result 3193 states and 4504 transitions. [2020-12-22 08:52:12,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:12,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-12-22 08:52:12,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:12,336 INFO L225 Difference]: With dead ends: 3193 [2020-12-22 08:52:12,336 INFO L226 Difference]: Without dead ends: 1978 [2020-12-22 08:52:12,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:52:12,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2020-12-22 08:52:12,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1898. [2020-12-22 08:52:12,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1898 states. [2020-12-22 08:52:12,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2706 transitions. [2020-12-22 08:52:12,453 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2706 transitions. Word has length 88 [2020-12-22 08:52:12,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:12,454 INFO L481 AbstractCegarLoop]: Abstraction has 1898 states and 2706 transitions. [2020-12-22 08:52:12,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:52:12,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2706 transitions. [2020-12-22 08:52:12,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-22 08:52:12,458 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:12,458 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:12,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:52:12,459 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:12,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:12,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1647430021, now seen corresponding path program 1 times [2020-12-22 08:52:12,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:12,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903447311] [2020-12-22 08:52:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:12,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:12,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903447311] [2020-12-22 08:52:12,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:12,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:52:12,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621502295] [2020-12-22 08:52:12,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:52:12,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:12,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:52:12,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:52:12,572 INFO L87 Difference]: Start difference. First operand 1898 states and 2706 transitions. Second operand 5 states. [2020-12-22 08:52:13,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:13,334 INFO L93 Difference]: Finished difference Result 3685 states and 5298 transitions. [2020-12-22 08:52:13,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:13,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2020-12-22 08:52:13,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:13,345 INFO L225 Difference]: With dead ends: 3685 [2020-12-22 08:52:13,345 INFO L226 Difference]: Without dead ends: 1870 [2020-12-22 08:52:13,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:52:13,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1870 states. [2020-12-22 08:52:13,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1870 to 1870. [2020-12-22 08:52:13,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-12-22 08:52:13,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2668 transitions. [2020-12-22 08:52:13,463 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2668 transitions. Word has length 89 [2020-12-22 08:52:13,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:13,464 INFO L481 AbstractCegarLoop]: Abstraction has 1870 states and 2668 transitions. [2020-12-22 08:52:13,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:52:13,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2668 transitions. [2020-12-22 08:52:13,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 08:52:13,468 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:13,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:13,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:52:13,469 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:13,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:13,469 INFO L82 PathProgramCache]: Analyzing trace with hash 288863356, now seen corresponding path program 1 times [2020-12-22 08:52:13,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:13,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24885267] [2020-12-22 08:52:13,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:13,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24885267] [2020-12-22 08:52:13,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:13,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:52:13,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863854799] [2020-12-22 08:52:13,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:52:13,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:13,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:52:13,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:52:13,580 INFO L87 Difference]: Start difference. First operand 1870 states and 2668 transitions. Second operand 5 states. [2020-12-22 08:52:14,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:14,328 INFO L93 Difference]: Finished difference Result 3657 states and 5252 transitions. [2020-12-22 08:52:14,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:52:14,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 90 [2020-12-22 08:52:14,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:14,339 INFO L225 Difference]: With dead ends: 3657 [2020-12-22 08:52:14,339 INFO L226 Difference]: Without dead ends: 1853 [2020-12-22 08:52:14,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:52:14,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2020-12-22 08:52:14,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1853. [2020-12-22 08:52:14,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1853 states. [2020-12-22 08:52:14,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2642 transitions. [2020-12-22 08:52:14,485 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2642 transitions. Word has length 90 [2020-12-22 08:52:14,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:14,486 INFO L481 AbstractCegarLoop]: Abstraction has 1853 states and 2642 transitions. [2020-12-22 08:52:14,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:52:14,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2642 transitions. [2020-12-22 08:52:14,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 08:52:14,490 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:14,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:14,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:52:14,491 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:14,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:14,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1183984296, now seen corresponding path program 1 times [2020-12-22 08:52:14,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:14,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538458812] [2020-12-22 08:52:14,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:14,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:14,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538458812] [2020-12-22 08:52:14,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:14,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:52:14,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473102604] [2020-12-22 08:52:14,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:52:14,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:14,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:52:14,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:52:14,700 INFO L87 Difference]: Start difference. First operand 1853 states and 2642 transitions. Second operand 8 states. [2020-12-22 08:52:16,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:16,137 INFO L93 Difference]: Finished difference Result 3284 states and 4649 transitions. [2020-12-22 08:52:16,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:52:16,137 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 91 [2020-12-22 08:52:16,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:16,149 INFO L225 Difference]: With dead ends: 3284 [2020-12-22 08:52:16,149 INFO L226 Difference]: Without dead ends: 2277 [2020-12-22 08:52:16,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:52:16,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2277 states. [2020-12-22 08:52:16,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2277 to 1490. [2020-12-22 08:52:16,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:52:16,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2112 transitions. [2020-12-22 08:52:16,269 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2112 transitions. Word has length 91 [2020-12-22 08:52:16,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:16,270 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2112 transitions. [2020-12-22 08:52:16,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:52:16,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2112 transitions. [2020-12-22 08:52:16,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 08:52:16,272 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:16,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:16,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:52:16,273 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:16,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:16,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1428942257, now seen corresponding path program 1 times [2020-12-22 08:52:16,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:16,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174240232] [2020-12-22 08:52:16,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:16,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174240232] [2020-12-22 08:52:16,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:16,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:16,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479721202] [2020-12-22 08:52:16,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:16,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:16,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:16,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:16,493 INFO L87 Difference]: Start difference. First operand 1490 states and 2112 transitions. Second operand 9 states. [2020-12-22 08:52:18,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:18,562 INFO L93 Difference]: Finished difference Result 3143 states and 4590 transitions. [2020-12-22 08:52:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:18,563 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-12-22 08:52:18,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:18,576 INFO L225 Difference]: With dead ends: 3143 [2020-12-22 08:52:18,576 INFO L226 Difference]: Without dead ends: 2354 [2020-12-22 08:52:18,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:52:18,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2020-12-22 08:52:18,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 1490. [2020-12-22 08:52:18,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:52:18,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2111 transitions. [2020-12-22 08:52:18,715 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2111 transitions. Word has length 91 [2020-12-22 08:52:18,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:18,715 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2111 transitions. [2020-12-22 08:52:18,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:18,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2111 transitions. [2020-12-22 08:52:18,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 08:52:18,718 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:18,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:18,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:52:18,719 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:18,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:18,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1459275419, now seen corresponding path program 1 times [2020-12-22 08:52:18,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:18,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168027650] [2020-12-22 08:52:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:18,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:18,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168027650] [2020-12-22 08:52:18,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:18,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:18,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516699374] [2020-12-22 08:52:18,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:18,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:18,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:18,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:18,957 INFO L87 Difference]: Start difference. First operand 1490 states and 2111 transitions. Second operand 9 states. [2020-12-22 08:52:21,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:21,469 INFO L93 Difference]: Finished difference Result 4360 states and 6371 transitions. [2020-12-22 08:52:21,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:21,470 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-12-22 08:52:21,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:21,488 INFO L225 Difference]: With dead ends: 4360 [2020-12-22 08:52:21,488 INFO L226 Difference]: Without dead ends: 3702 [2020-12-22 08:52:21,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:52:21,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2020-12-22 08:52:21,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 1490. [2020-12-22 08:52:21,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:52:21,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2110 transitions. [2020-12-22 08:52:21,670 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2110 transitions. Word has length 91 [2020-12-22 08:52:21,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:21,671 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2110 transitions. [2020-12-22 08:52:21,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:21,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2110 transitions. [2020-12-22 08:52:21,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:52:21,674 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:21,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:21,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:52:21,674 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:21,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:21,675 INFO L82 PathProgramCache]: Analyzing trace with hash -2136143015, now seen corresponding path program 1 times [2020-12-22 08:52:21,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:21,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365510910] [2020-12-22 08:52:21,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:21,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:21,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365510910] [2020-12-22 08:52:21,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:21,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:52:21,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252063802] [2020-12-22 08:52:21,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:52:21,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:21,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:52:21,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:52:21,933 INFO L87 Difference]: Start difference. First operand 1490 states and 2110 transitions. Second operand 11 states. [2020-12-22 08:52:25,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:25,242 INFO L93 Difference]: Finished difference Result 3810 states and 5512 transitions. [2020-12-22 08:52:25,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:52:25,242 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-12-22 08:52:25,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:25,257 INFO L225 Difference]: With dead ends: 3810 [2020-12-22 08:52:25,258 INFO L226 Difference]: Without dead ends: 2987 [2020-12-22 08:52:25,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-12-22 08:52:25,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2020-12-22 08:52:25,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 1494. [2020-12-22 08:52:25,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:52:25,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2114 transitions. [2020-12-22 08:52:25,458 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2114 transitions. Word has length 93 [2020-12-22 08:52:25,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:25,458 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2114 transitions. [2020-12-22 08:52:25,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:52:25,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2114 transitions. [2020-12-22 08:52:25,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:52:25,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:25,461 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:25,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:52:25,461 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:25,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:25,462 INFO L82 PathProgramCache]: Analyzing trace with hash -2068984294, now seen corresponding path program 1 times [2020-12-22 08:52:25,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:25,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813324194] [2020-12-22 08:52:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:25,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813324194] [2020-12-22 08:52:25,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:25,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:25,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405636907] [2020-12-22 08:52:25,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:25,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:25,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:25,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:25,640 INFO L87 Difference]: Start difference. First operand 1494 states and 2114 transitions. Second operand 9 states. [2020-12-22 08:52:28,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:28,105 INFO L93 Difference]: Finished difference Result 4252 states and 6208 transitions. [2020-12-22 08:52:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:28,105 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-12-22 08:52:28,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:28,123 INFO L225 Difference]: With dead ends: 4252 [2020-12-22 08:52:28,123 INFO L226 Difference]: Without dead ends: 3654 [2020-12-22 08:52:28,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:52:28,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2020-12-22 08:52:28,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 1494. [2020-12-22 08:52:28,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:52:28,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2113 transitions. [2020-12-22 08:52:28,297 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2113 transitions. Word has length 93 [2020-12-22 08:52:28,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:28,298 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2113 transitions. [2020-12-22 08:52:28,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:28,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2113 transitions. [2020-12-22 08:52:28,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:52:28,301 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:28,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:28,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:52:28,302 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:28,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:28,302 INFO L82 PathProgramCache]: Analyzing trace with hash 928092964, now seen corresponding path program 1 times [2020-12-22 08:52:28,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:28,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853357490] [2020-12-22 08:52:28,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:28,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853357490] [2020-12-22 08:52:28,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:28,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:28,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114912024] [2020-12-22 08:52:28,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:28,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:28,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:28,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:28,486 INFO L87 Difference]: Start difference. First operand 1494 states and 2113 transitions. Second operand 9 states. [2020-12-22 08:52:31,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:31,128 INFO L93 Difference]: Finished difference Result 4354 states and 6351 transitions. [2020-12-22 08:52:31,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:31,128 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-12-22 08:52:31,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:31,152 INFO L225 Difference]: With dead ends: 4354 [2020-12-22 08:52:31,152 INFO L226 Difference]: Without dead ends: 3706 [2020-12-22 08:52:31,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:52:31,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3706 states. [2020-12-22 08:52:31,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3706 to 1494. [2020-12-22 08:52:31,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:52:31,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2112 transitions. [2020-12-22 08:52:31,343 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2112 transitions. Word has length 93 [2020-12-22 08:52:31,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:31,343 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2112 transitions. [2020-12-22 08:52:31,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:31,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2112 transitions. [2020-12-22 08:52:31,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:52:31,346 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:31,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:31,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:52:31,347 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:31,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:31,347 INFO L82 PathProgramCache]: Analyzing trace with hash 538302253, now seen corresponding path program 1 times [2020-12-22 08:52:31,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:31,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015437976] [2020-12-22 08:52:31,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:31,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015437976] [2020-12-22 08:52:31,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:31,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:31,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713275607] [2020-12-22 08:52:31,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:31,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:31,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:31,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:31,565 INFO L87 Difference]: Start difference. First operand 1494 states and 2112 transitions. Second operand 9 states. [2020-12-22 08:52:34,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:34,117 INFO L93 Difference]: Finished difference Result 4256 states and 6212 transitions. [2020-12-22 08:52:34,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:34,122 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-12-22 08:52:34,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:34,130 INFO L225 Difference]: With dead ends: 4256 [2020-12-22 08:52:34,130 INFO L226 Difference]: Without dead ends: 3654 [2020-12-22 08:52:34,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:52:34,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2020-12-22 08:52:34,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 1494. [2020-12-22 08:52:34,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:52:34,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2111 transitions. [2020-12-22 08:52:34,308 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2111 transitions. Word has length 93 [2020-12-22 08:52:34,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:34,308 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2111 transitions. [2020-12-22 08:52:34,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:34,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2111 transitions. [2020-12-22 08:52:34,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:52:34,311 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:34,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:34,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:52:34,312 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:34,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:34,312 INFO L82 PathProgramCache]: Analyzing trace with hash -350742557, now seen corresponding path program 1 times [2020-12-22 08:52:34,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:34,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493305924] [2020-12-22 08:52:34,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:34,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:34,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493305924] [2020-12-22 08:52:34,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:34,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:52:34,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035528290] [2020-12-22 08:52:34,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:52:34,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:34,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:52:34,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:52:34,552 INFO L87 Difference]: Start difference. First operand 1494 states and 2111 transitions. Second operand 11 states. [2020-12-22 08:52:40,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:40,898 INFO L93 Difference]: Finished difference Result 9164 states and 13550 transitions. [2020-12-22 08:52:40,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:52:40,899 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-12-22 08:52:40,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:40,913 INFO L225 Difference]: With dead ends: 9164 [2020-12-22 08:52:40,913 INFO L226 Difference]: Without dead ends: 8484 [2020-12-22 08:52:40,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:52:40,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8484 states. [2020-12-22 08:52:41,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8484 to 1498. [2020-12-22 08:52:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2020-12-22 08:52:41,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2115 transitions. [2020-12-22 08:52:41,138 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2115 transitions. Word has length 93 [2020-12-22 08:52:41,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:41,138 INFO L481 AbstractCegarLoop]: Abstraction has 1498 states and 2115 transitions. [2020-12-22 08:52:41,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:52:41,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2115 transitions. [2020-12-22 08:52:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:52:41,140 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:41,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:41,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:52:41,141 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:41,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:41,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1779757049, now seen corresponding path program 1 times [2020-12-22 08:52:41,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:41,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046473218] [2020-12-22 08:52:41,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:41,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:41,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046473218] [2020-12-22 08:52:41,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:41,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:41,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34068310] [2020-12-22 08:52:41,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:41,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:41,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:41,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:41,309 INFO L87 Difference]: Start difference. First operand 1498 states and 2115 transitions. Second operand 9 states. [2020-12-22 08:52:44,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:44,143 INFO L93 Difference]: Finished difference Result 4252 states and 6206 transitions. [2020-12-22 08:52:44,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:44,143 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-12-22 08:52:44,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:44,150 INFO L225 Difference]: With dead ends: 4252 [2020-12-22 08:52:44,151 INFO L226 Difference]: Without dead ends: 3658 [2020-12-22 08:52:44,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:52:44,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2020-12-22 08:52:44,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 1498. [2020-12-22 08:52:44,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2020-12-22 08:52:44,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2114 transitions. [2020-12-22 08:52:44,424 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2114 transitions. Word has length 93 [2020-12-22 08:52:44,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:44,424 INFO L481 AbstractCegarLoop]: Abstraction has 1498 states and 2114 transitions. [2020-12-22 08:52:44,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2114 transitions. [2020-12-22 08:52:44,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:52:44,427 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:44,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:44,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:52:44,427 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:44,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:44,428 INFO L82 PathProgramCache]: Analyzing trace with hash 162924990, now seen corresponding path program 1 times [2020-12-22 08:52:44,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:44,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988154649] [2020-12-22 08:52:44,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:44,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:44,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988154649] [2020-12-22 08:52:44,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:44,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:52:44,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307600872] [2020-12-22 08:52:44,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:52:44,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:44,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:52:44,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:52:44,695 INFO L87 Difference]: Start difference. First operand 1498 states and 2114 transitions. Second operand 11 states. [2020-12-22 08:52:50,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:50,360 INFO L93 Difference]: Finished difference Result 8328 states and 12303 transitions. [2020-12-22 08:52:50,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:52:50,360 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-12-22 08:52:50,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:50,375 INFO L225 Difference]: With dead ends: 8328 [2020-12-22 08:52:50,375 INFO L226 Difference]: Without dead ends: 7730 [2020-12-22 08:52:50,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:52:50,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7730 states. [2020-12-22 08:52:50,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7730 to 1502. [2020-12-22 08:52:50,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2020-12-22 08:52:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2118 transitions. [2020-12-22 08:52:50,729 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2118 transitions. Word has length 93 [2020-12-22 08:52:50,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:50,729 INFO L481 AbstractCegarLoop]: Abstraction has 1502 states and 2118 transitions. [2020-12-22 08:52:50,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:52:50,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2118 transitions. [2020-12-22 08:52:50,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:52:50,731 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:50,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:50,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:52:50,731 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:50,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:50,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1743038652, now seen corresponding path program 1 times [2020-12-22 08:52:50,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:50,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012434542] [2020-12-22 08:52:50,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:50,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:50,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012434542] [2020-12-22 08:52:50,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:50,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:50,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980885704] [2020-12-22 08:52:50,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:50,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:50,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:50,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:50,913 INFO L87 Difference]: Start difference. First operand 1502 states and 2118 transitions. Second operand 9 states. [2020-12-22 08:52:53,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:53,185 INFO L93 Difference]: Finished difference Result 3189 states and 4626 transitions. [2020-12-22 08:52:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:52:53,186 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:52:53,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:53,190 INFO L225 Difference]: With dead ends: 3189 [2020-12-22 08:52:53,190 INFO L226 Difference]: Without dead ends: 2366 [2020-12-22 08:52:53,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:52:53,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2020-12-22 08:52:53,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 1498. [2020-12-22 08:52:53,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2020-12-22 08:52:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2113 transitions. [2020-12-22 08:52:53,496 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2113 transitions. Word has length 94 [2020-12-22 08:52:53,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:53,496 INFO L481 AbstractCegarLoop]: Abstraction has 1498 states and 2113 transitions. [2020-12-22 08:52:53,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:53,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2113 transitions. [2020-12-22 08:52:53,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:52:53,498 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:53,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:53,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:52:53,498 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:53,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:53,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1552610872, now seen corresponding path program 1 times [2020-12-22 08:52:53,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:53,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238427568] [2020-12-22 08:52:53,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:53,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238427568] [2020-12-22 08:52:53,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:53,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:53,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643814875] [2020-12-22 08:52:53,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:53,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:53,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:53,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:53,683 INFO L87 Difference]: Start difference. First operand 1498 states and 2113 transitions. Second operand 9 states. [2020-12-22 08:52:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:56,610 INFO L93 Difference]: Finished difference Result 4252 states and 6202 transitions. [2020-12-22 08:52:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:56,610 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:52:56,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:56,616 INFO L225 Difference]: With dead ends: 4252 [2020-12-22 08:52:56,616 INFO L226 Difference]: Without dead ends: 3654 [2020-12-22 08:52:56,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:52:56,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2020-12-22 08:52:56,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 1494. [2020-12-22 08:52:56,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:52:56,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2108 transitions. [2020-12-22 08:52:56,954 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2108 transitions. Word has length 94 [2020-12-22 08:52:56,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:56,955 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2108 transitions. [2020-12-22 08:52:56,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:56,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2108 transitions. [2020-12-22 08:52:56,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 08:52:56,957 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:56,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:56,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:52:56,958 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:52:56,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:56,958 INFO L82 PathProgramCache]: Analyzing trace with hash 911066776, now seen corresponding path program 1 times [2020-12-22 08:52:56,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:56,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797601327] [2020-12-22 08:52:56,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:57,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:52:57,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797601327] [2020-12-22 08:52:57,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:57,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:57,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021301878] [2020-12-22 08:52:57,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:57,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:57,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:57,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:57,147 INFO L87 Difference]: Start difference. First operand 1494 states and 2108 transitions. Second operand 9 states. [2020-12-22 08:53:00,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:00,486 INFO L93 Difference]: Finished difference Result 4382 states and 6389 transitions. [2020-12-22 08:53:00,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:00,487 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 08:53:00,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:00,490 INFO L225 Difference]: With dead ends: 4382 [2020-12-22 08:53:00,490 INFO L226 Difference]: Without dead ends: 3702 [2020-12-22 08:53:00,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:00,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2020-12-22 08:53:00,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 1490. [2020-12-22 08:53:00,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:53:00,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2103 transitions. [2020-12-22 08:53:00,779 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2103 transitions. Word has length 94 [2020-12-22 08:53:00,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:00,779 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2103 transitions. [2020-12-22 08:53:00,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:00,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2103 transitions. [2020-12-22 08:53:00,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:00,781 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:00,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:00,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:53:00,781 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:00,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:00,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1878690134, now seen corresponding path program 1 times [2020-12-22 08:53:00,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:00,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536055332] [2020-12-22 08:53:00,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:00,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:00,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536055332] [2020-12-22 08:53:00,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:00,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:00,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841852150] [2020-12-22 08:53:00,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:00,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:00,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:00,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:00,959 INFO L87 Difference]: Start difference. First operand 1490 states and 2103 transitions. Second operand 9 states. [2020-12-22 08:53:03,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:03,741 INFO L93 Difference]: Finished difference Result 4258 states and 6207 transitions. [2020-12-22 08:53:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:03,742 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:53:03,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:03,745 INFO L225 Difference]: With dead ends: 4258 [2020-12-22 08:53:03,745 INFO L226 Difference]: Without dead ends: 3650 [2020-12-22 08:53:03,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:53:03,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3650 states. [2020-12-22 08:53:04,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3650 to 1490. [2020-12-22 08:53:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:53:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2102 transitions. [2020-12-22 08:53:04,018 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2102 transitions. Word has length 95 [2020-12-22 08:53:04,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:04,019 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2102 transitions. [2020-12-22 08:53:04,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2102 transitions. [2020-12-22 08:53:04,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:04,020 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:04,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:04,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:53:04,020 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:04,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:04,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1469844906, now seen corresponding path program 1 times [2020-12-22 08:53:04,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:04,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248098489] [2020-12-22 08:53:04,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:04,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:04,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248098489] [2020-12-22 08:53:04,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:04,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:04,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777481365] [2020-12-22 08:53:04,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:04,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:04,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:04,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:04,223 INFO L87 Difference]: Start difference. First operand 1490 states and 2102 transitions. Second operand 9 states. [2020-12-22 08:53:07,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:07,165 INFO L93 Difference]: Finished difference Result 3300 states and 4787 transitions. [2020-12-22 08:53:07,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:07,166 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:53:07,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:07,168 INFO L225 Difference]: With dead ends: 3300 [2020-12-22 08:53:07,168 INFO L226 Difference]: Without dead ends: 2722 [2020-12-22 08:53:07,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2020-12-22 08:53:07,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1490. [2020-12-22 08:53:07,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:53:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2101 transitions. [2020-12-22 08:53:07,428 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2101 transitions. Word has length 95 [2020-12-22 08:53:07,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:07,428 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2101 transitions. [2020-12-22 08:53:07,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:07,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2101 transitions. [2020-12-22 08:53:07,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:07,429 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:07,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:07,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:53:07,430 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:07,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:07,431 INFO L82 PathProgramCache]: Analyzing trace with hash -2020844490, now seen corresponding path program 1 times [2020-12-22 08:53:07,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:07,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875149278] [2020-12-22 08:53:07,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:07,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:07,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875149278] [2020-12-22 08:53:07,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:07,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:53:07,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943506745] [2020-12-22 08:53:07,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:53:07,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:07,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:53:07,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:53:07,693 INFO L87 Difference]: Start difference. First operand 1490 states and 2101 transitions. Second operand 11 states. [2020-12-22 08:53:15,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:15,968 INFO L93 Difference]: Finished difference Result 9208 states and 13575 transitions. [2020-12-22 08:53:15,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:53:15,969 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2020-12-22 08:53:15,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:15,977 INFO L225 Difference]: With dead ends: 9208 [2020-12-22 08:53:15,977 INFO L226 Difference]: Without dead ends: 8504 [2020-12-22 08:53:15,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:53:15,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8504 states. [2020-12-22 08:53:16,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8504 to 1494. [2020-12-22 08:53:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:53:16,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2105 transitions. [2020-12-22 08:53:16,269 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2105 transitions. Word has length 95 [2020-12-22 08:53:16,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:16,269 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2105 transitions. [2020-12-22 08:53:16,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:53:16,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2105 transitions. [2020-12-22 08:53:16,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:16,271 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:16,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:16,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:53:16,271 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:16,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:16,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1920722797, now seen corresponding path program 1 times [2020-12-22 08:53:16,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:16,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081156199] [2020-12-22 08:53:16,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:16,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081156199] [2020-12-22 08:53:16,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:16,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:16,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978231473] [2020-12-22 08:53:16,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:16,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:16,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:16,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:16,469 INFO L87 Difference]: Start difference. First operand 1494 states and 2105 transitions. Second operand 9 states. [2020-12-22 08:53:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:19,603 INFO L93 Difference]: Finished difference Result 3300 states and 4786 transitions. [2020-12-22 08:53:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:19,604 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:53:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:19,606 INFO L225 Difference]: With dead ends: 3300 [2020-12-22 08:53:19,606 INFO L226 Difference]: Without dead ends: 2726 [2020-12-22 08:53:19,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:19,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2020-12-22 08:53:19,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 1494. [2020-12-22 08:53:19,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:53:19,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2104 transitions. [2020-12-22 08:53:19,859 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2104 transitions. Word has length 95 [2020-12-22 08:53:19,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:19,859 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2104 transitions. [2020-12-22 08:53:19,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:19,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2104 transitions. [2020-12-22 08:53:19,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:19,861 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:19,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:19,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:53:19,861 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:19,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:19,862 INFO L82 PathProgramCache]: Analyzing trace with hash -523524958, now seen corresponding path program 1 times [2020-12-22 08:53:19,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:19,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882116343] [2020-12-22 08:53:19,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:20,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:20,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882116343] [2020-12-22 08:53:20,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:20,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:20,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129285653] [2020-12-22 08:53:20,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:20,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:20,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:20,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:20,053 INFO L87 Difference]: Start difference. First operand 1494 states and 2104 transitions. Second operand 9 states. [2020-12-22 08:53:23,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:23,393 INFO L93 Difference]: Finished difference Result 3310 states and 4797 transitions. [2020-12-22 08:53:23,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:23,394 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:53:23,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:23,396 INFO L225 Difference]: With dead ends: 3310 [2020-12-22 08:53:23,396 INFO L226 Difference]: Without dead ends: 2726 [2020-12-22 08:53:23,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:23,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2020-12-22 08:53:23,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 1494. [2020-12-22 08:53:23,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:53:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2102 transitions. [2020-12-22 08:53:23,652 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2102 transitions. Word has length 95 [2020-12-22 08:53:23,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:23,652 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2102 transitions. [2020-12-22 08:53:23,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:23,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2102 transitions. [2020-12-22 08:53:23,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:23,653 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:23,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:23,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:53:23,654 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:23,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:23,654 INFO L82 PathProgramCache]: Analyzing trace with hash -891627133, now seen corresponding path program 1 times [2020-12-22 08:53:23,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:23,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532034809] [2020-12-22 08:53:23,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:23,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532034809] [2020-12-22 08:53:23,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:23,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:23,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853572584] [2020-12-22 08:53:23,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:23,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:23,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:23,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:23,846 INFO L87 Difference]: Start difference. First operand 1494 states and 2102 transitions. Second operand 9 states. [2020-12-22 08:53:27,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:27,054 INFO L93 Difference]: Finished difference Result 3304 states and 4786 transitions. [2020-12-22 08:53:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:27,055 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:53:27,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:27,058 INFO L225 Difference]: With dead ends: 3304 [2020-12-22 08:53:27,058 INFO L226 Difference]: Without dead ends: 2726 [2020-12-22 08:53:27,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:27,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2020-12-22 08:53:27,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 1494. [2020-12-22 08:53:27,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:53:27,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2101 transitions. [2020-12-22 08:53:27,316 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2101 transitions. Word has length 95 [2020-12-22 08:53:27,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:27,316 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2101 transitions. [2020-12-22 08:53:27,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:27,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2101 transitions. [2020-12-22 08:53:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:27,318 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:27,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:27,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:53:27,318 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:27,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:27,319 INFO L82 PathProgramCache]: Analyzing trace with hash -482781905, now seen corresponding path program 1 times [2020-12-22 08:53:27,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:27,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280081150] [2020-12-22 08:53:27,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:27,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:27,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280081150] [2020-12-22 08:53:27,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:27,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:53:27,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456449481] [2020-12-22 08:53:27,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:53:27,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:27,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:53:27,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:53:27,548 INFO L87 Difference]: Start difference. First operand 1494 states and 2101 transitions. Second operand 11 states. [2020-12-22 08:53:34,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:34,452 INFO L93 Difference]: Finished difference Result 8328 states and 12282 transitions. [2020-12-22 08:53:34,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:53:34,453 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2020-12-22 08:53:34,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:34,459 INFO L225 Difference]: With dead ends: 8328 [2020-12-22 08:53:34,459 INFO L226 Difference]: Without dead ends: 7728 [2020-12-22 08:53:34,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:53:34,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7728 states. [2020-12-22 08:53:34,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7728 to 1498. [2020-12-22 08:53:34,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2020-12-22 08:53:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2105 transitions. [2020-12-22 08:53:34,838 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2105 transitions. Word has length 95 [2020-12-22 08:53:34,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:34,838 INFO L481 AbstractCegarLoop]: Abstraction has 1498 states and 2105 transitions. [2020-12-22 08:53:34,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:53:34,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2105 transitions. [2020-12-22 08:53:34,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:34,840 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:34,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:34,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:53:34,840 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:34,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:34,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1112928597, now seen corresponding path program 1 times [2020-12-22 08:53:34,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:34,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837601316] [2020-12-22 08:53:34,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:35,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:35,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837601316] [2020-12-22 08:53:35,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:35,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:35,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926183058] [2020-12-22 08:53:35,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:35,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:35,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:35,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:35,043 INFO L87 Difference]: Start difference. First operand 1498 states and 2105 transitions. Second operand 9 states. [2020-12-22 08:53:38,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:38,262 INFO L93 Difference]: Finished difference Result 3318 states and 4804 transitions. [2020-12-22 08:53:38,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:38,263 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:53:38,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:38,266 INFO L225 Difference]: With dead ends: 3318 [2020-12-22 08:53:38,266 INFO L226 Difference]: Without dead ends: 2730 [2020-12-22 08:53:38,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:38,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2020-12-22 08:53:38,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 1498. [2020-12-22 08:53:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2020-12-22 08:53:38,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2103 transitions. [2020-12-22 08:53:38,597 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2103 transitions. Word has length 95 [2020-12-22 08:53:38,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:38,598 INFO L481 AbstractCegarLoop]: Abstraction has 1498 states and 2103 transitions. [2020-12-22 08:53:38,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2103 transitions. [2020-12-22 08:53:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:38,599 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:38,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:38,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:53:38,600 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:38,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:38,600 INFO L82 PathProgramCache]: Analyzing trace with hash -738270563, now seen corresponding path program 1 times [2020-12-22 08:53:38,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:38,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43142517] [2020-12-22 08:53:38,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:38,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:38,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43142517] [2020-12-22 08:53:38,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:38,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:38,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183543879] [2020-12-22 08:53:38,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:38,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:38,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:38,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:38,821 INFO L87 Difference]: Start difference. First operand 1498 states and 2103 transitions. Second operand 9 states. [2020-12-22 08:53:42,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:42,009 INFO L93 Difference]: Finished difference Result 3304 states and 4784 transitions. [2020-12-22 08:53:42,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:42,010 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:53:42,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:42,013 INFO L225 Difference]: With dead ends: 3304 [2020-12-22 08:53:42,013 INFO L226 Difference]: Without dead ends: 2730 [2020-12-22 08:53:42,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:42,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2020-12-22 08:53:42,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 1498. [2020-12-22 08:53:42,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2020-12-22 08:53:42,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2102 transitions. [2020-12-22 08:53:42,320 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2102 transitions. Word has length 95 [2020-12-22 08:53:42,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:42,320 INFO L481 AbstractCegarLoop]: Abstraction has 1498 states and 2102 transitions. [2020-12-22 08:53:42,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:42,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2102 transitions. [2020-12-22 08:53:42,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:42,322 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:42,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:42,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:53:42,323 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:42,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:42,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1153671650, now seen corresponding path program 1 times [2020-12-22 08:53:42,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:42,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73650079] [2020-12-22 08:53:42,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:42,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:42,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73650079] [2020-12-22 08:53:42,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:42,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:53:42,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070757651] [2020-12-22 08:53:42,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:53:42,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:42,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:53:42,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:53:42,561 INFO L87 Difference]: Start difference. First operand 1498 states and 2102 transitions. Second operand 11 states. [2020-12-22 08:53:49,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:49,880 INFO L93 Difference]: Finished difference Result 8344 states and 12306 transitions. [2020-12-22 08:53:49,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:53:49,881 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2020-12-22 08:53:49,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:49,887 INFO L225 Difference]: With dead ends: 8344 [2020-12-22 08:53:49,888 INFO L226 Difference]: Without dead ends: 7736 [2020-12-22 08:53:49,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:53:49,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7736 states. [2020-12-22 08:53:50,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7736 to 1502. [2020-12-22 08:53:50,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2020-12-22 08:53:50,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2106 transitions. [2020-12-22 08:53:50,255 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2106 transitions. Word has length 95 [2020-12-22 08:53:50,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:50,255 INFO L481 AbstractCegarLoop]: Abstraction has 1502 states and 2106 transitions. [2020-12-22 08:53:50,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:53:50,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2106 transitions. [2020-12-22 08:53:50,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:50,257 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:50,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:50,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 08:53:50,257 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:50,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:50,257 INFO L82 PathProgramCache]: Analyzing trace with hash 744826422, now seen corresponding path program 1 times [2020-12-22 08:53:50,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:50,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514059988] [2020-12-22 08:53:50,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:50,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:50,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514059988] [2020-12-22 08:53:50,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:50,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:50,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889544145] [2020-12-22 08:53:50,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:50,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:50,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:50,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:50,456 INFO L87 Difference]: Start difference. First operand 1502 states and 2106 transitions. Second operand 9 states. [2020-12-22 08:53:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:53,858 INFO L93 Difference]: Finished difference Result 3312 states and 4791 transitions. [2020-12-22 08:53:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:53,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:53:53,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:53,861 INFO L225 Difference]: With dead ends: 3312 [2020-12-22 08:53:53,862 INFO L226 Difference]: Without dead ends: 2734 [2020-12-22 08:53:53,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:53,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2020-12-22 08:53:54,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 1502. [2020-12-22 08:53:54,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2020-12-22 08:53:54,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2105 transitions. [2020-12-22 08:53:54,173 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2105 transitions. Word has length 95 [2020-12-22 08:53:54,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:54,173 INFO L481 AbstractCegarLoop]: Abstraction has 1502 states and 2105 transitions. [2020-12-22 08:53:54,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:54,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2105 transitions. [2020-12-22 08:53:54,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:54,174 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:54,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:54,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 08:53:54,175 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:54,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:54,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1037319048, now seen corresponding path program 1 times [2020-12-22 08:53:54,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:54,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847887575] [2020-12-22 08:53:54,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:54,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:54,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847887575] [2020-12-22 08:53:54,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:54,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:54,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453717375] [2020-12-22 08:53:54,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:54,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:54,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:54,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:54,367 INFO L87 Difference]: Start difference. First operand 1502 states and 2105 transitions. Second operand 9 states. [2020-12-22 08:53:57,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:57,846 INFO L93 Difference]: Finished difference Result 3316 states and 4797 transitions. [2020-12-22 08:53:57,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:57,847 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:53:57,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:57,849 INFO L225 Difference]: With dead ends: 3316 [2020-12-22 08:53:57,849 INFO L226 Difference]: Without dead ends: 2734 [2020-12-22 08:53:57,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2020-12-22 08:53:58,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 1502. [2020-12-22 08:53:58,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2020-12-22 08:53:58,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2103 transitions. [2020-12-22 08:53:58,192 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2103 transitions. Word has length 95 [2020-12-22 08:53:58,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:58,192 INFO L481 AbstractCegarLoop]: Abstraction has 1502 states and 2103 transitions. [2020-12-22 08:53:58,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:58,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2103 transitions. [2020-12-22 08:53:58,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:53:58,194 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:58,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:58,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 08:53:58,195 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:53:58,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:58,195 INFO L82 PathProgramCache]: Analyzing trace with hash -359034935, now seen corresponding path program 1 times [2020-12-22 08:53:58,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:58,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992018273] [2020-12-22 08:53:58,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:58,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:53:58,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992018273] [2020-12-22 08:53:58,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:58,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:58,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753515667] [2020-12-22 08:53:58,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:58,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:58,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:58,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:58,377 INFO L87 Difference]: Start difference. First operand 1502 states and 2103 transitions. Second operand 9 states. [2020-12-22 08:54:01,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:01,703 INFO L93 Difference]: Finished difference Result 3306 states and 4782 transitions. [2020-12-22 08:54:01,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:54:01,704 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:54:01,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:01,706 INFO L225 Difference]: With dead ends: 3306 [2020-12-22 08:54:01,707 INFO L226 Difference]: Without dead ends: 2734 [2020-12-22 08:54:01,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:54:01,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2020-12-22 08:54:02,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 1502. [2020-12-22 08:54:02,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2020-12-22 08:54:02,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2102 transitions. [2020-12-22 08:54:02,022 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2102 transitions. Word has length 95 [2020-12-22 08:54:02,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:02,023 INFO L481 AbstractCegarLoop]: Abstraction has 1502 states and 2102 transitions. [2020-12-22 08:54:02,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2102 transitions. [2020-12-22 08:54:02,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:54:02,025 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:02,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:02,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 08:54:02,026 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:02,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:02,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1152638694, now seen corresponding path program 1 times [2020-12-22 08:54:02,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:02,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890834770] [2020-12-22 08:54:02,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:02,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:02,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890834770] [2020-12-22 08:54:02,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:02,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:02,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275248218] [2020-12-22 08:54:02,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:02,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:02,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:02,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:02,206 INFO L87 Difference]: Start difference. First operand 1502 states and 2102 transitions. Second operand 9 states. [2020-12-22 08:54:05,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:05,633 INFO L93 Difference]: Finished difference Result 3318 states and 4795 transitions. [2020-12-22 08:54:05,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:54:05,634 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:54:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:05,636 INFO L225 Difference]: With dead ends: 3318 [2020-12-22 08:54:05,636 INFO L226 Difference]: Without dead ends: 2734 [2020-12-22 08:54:05,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:54:05,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2020-12-22 08:54:05,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 1502. [2020-12-22 08:54:05,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2020-12-22 08:54:05,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2100 transitions. [2020-12-22 08:54:05,985 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2100 transitions. Word has length 95 [2020-12-22 08:54:05,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:05,986 INFO L481 AbstractCegarLoop]: Abstraction has 1502 states and 2100 transitions. [2020-12-22 08:54:05,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:05,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2100 transitions. [2020-12-22 08:54:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:54:05,988 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:05,988 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:05,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 08:54:05,988 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:05,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:05,989 INFO L82 PathProgramCache]: Analyzing trace with hash -698776940, now seen corresponding path program 1 times [2020-12-22 08:54:05,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:05,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986056298] [2020-12-22 08:54:05,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:06,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986056298] [2020-12-22 08:54:06,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:06,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:06,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120197687] [2020-12-22 08:54:06,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:06,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:06,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:06,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:06,183 INFO L87 Difference]: Start difference. First operand 1502 states and 2100 transitions. Second operand 9 states. [2020-12-22 08:54:09,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:09,499 INFO L93 Difference]: Finished difference Result 3308 states and 4781 transitions. [2020-12-22 08:54:09,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:54:09,500 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:54:09,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:09,502 INFO L225 Difference]: With dead ends: 3308 [2020-12-22 08:54:09,502 INFO L226 Difference]: Without dead ends: 2734 [2020-12-22 08:54:09,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:54:09,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2020-12-22 08:54:09,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 1502. [2020-12-22 08:54:09,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1502 states. [2020-12-22 08:54:09,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2099 transitions. [2020-12-22 08:54:09,850 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2099 transitions. Word has length 95 [2020-12-22 08:54:09,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:09,851 INFO L481 AbstractCegarLoop]: Abstraction has 1502 states and 2099 transitions. [2020-12-22 08:54:09,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:09,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2099 transitions. [2020-12-22 08:54:09,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:54:09,852 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:09,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:09,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 08:54:09,852 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:09,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:09,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1514074373, now seen corresponding path program 1 times [2020-12-22 08:54:09,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:09,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653622347] [2020-12-22 08:54:09,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:09,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653622347] [2020-12-22 08:54:09,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:09,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:09,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358994670] [2020-12-22 08:54:10,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:10,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:10,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:10,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:10,000 INFO L87 Difference]: Start difference. First operand 1502 states and 2099 transitions. Second operand 9 states. [2020-12-22 08:54:13,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:13,527 INFO L93 Difference]: Finished difference Result 4254 states and 6174 transitions. [2020-12-22 08:54:13,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:54:13,527 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:54:13,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:13,530 INFO L225 Difference]: With dead ends: 4254 [2020-12-22 08:54:13,530 INFO L226 Difference]: Without dead ends: 3654 [2020-12-22 08:54:13,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:54:13,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2020-12-22 08:54:13,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 1498. [2020-12-22 08:54:13,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1498 states. [2020-12-22 08:54:13,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2094 transitions. [2020-12-22 08:54:13,871 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2094 transitions. Word has length 96 [2020-12-22 08:54:13,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:13,872 INFO L481 AbstractCegarLoop]: Abstraction has 1498 states and 2094 transitions. [2020-12-22 08:54:13,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:13,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2094 transitions. [2020-12-22 08:54:13,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:54:13,873 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:13,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:13,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 08:54:13,873 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:13,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:13,874 INFO L82 PathProgramCache]: Analyzing trace with hash 937498281, now seen corresponding path program 1 times [2020-12-22 08:54:13,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:13,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845997935] [2020-12-22 08:54:13,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:14,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:14,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845997935] [2020-12-22 08:54:14,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:14,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:14,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052041715] [2020-12-22 08:54:14,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:14,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:14,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:14,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:14,028 INFO L87 Difference]: Start difference. First operand 1498 states and 2094 transitions. Second operand 9 states. [2020-12-22 08:54:17,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:17,862 INFO L93 Difference]: Finished difference Result 4414 states and 6391 transitions. [2020-12-22 08:54:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:54:17,862 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:54:17,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:17,865 INFO L225 Difference]: With dead ends: 4414 [2020-12-22 08:54:17,865 INFO L226 Difference]: Without dead ends: 3710 [2020-12-22 08:54:17,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:54:17,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3710 states. [2020-12-22 08:54:18,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3710 to 1494. [2020-12-22 08:54:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:54:18,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2089 transitions. [2020-12-22 08:54:18,206 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2089 transitions. Word has length 96 [2020-12-22 08:54:18,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:18,206 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2089 transitions. [2020-12-22 08:54:18,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:18,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2089 transitions. [2020-12-22 08:54:18,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:54:18,207 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:18,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:18,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 08:54:18,208 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:18,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:18,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1971346059, now seen corresponding path program 1 times [2020-12-22 08:54:18,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:18,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039638356] [2020-12-22 08:54:18,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:18,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:18,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039638356] [2020-12-22 08:54:18,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:18,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:18,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174265598] [2020-12-22 08:54:18,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:18,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:18,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:18,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:18,367 INFO L87 Difference]: Start difference. First operand 1494 states and 2089 transitions. Second operand 9 states. [2020-12-22 08:54:22,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:22,071 INFO L93 Difference]: Finished difference Result 4258 states and 6182 transitions. [2020-12-22 08:54:22,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:54:22,071 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:54:22,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:22,075 INFO L225 Difference]: With dead ends: 4258 [2020-12-22 08:54:22,075 INFO L226 Difference]: Without dead ends: 3650 [2020-12-22 08:54:22,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:54:22,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3650 states. [2020-12-22 08:54:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3650 to 1490. [2020-12-22 08:54:22,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:54:22,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2084 transitions. [2020-12-22 08:54:22,449 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2084 transitions. Word has length 96 [2020-12-22 08:54:22,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:22,449 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2084 transitions. [2020-12-22 08:54:22,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:22,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2084 transitions. [2020-12-22 08:54:22,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:54:22,451 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:22,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:22,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 08:54:22,451 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:22,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:22,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1541256586, now seen corresponding path program 1 times [2020-12-22 08:54:22,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:22,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868833054] [2020-12-22 08:54:22,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:22,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868833054] [2020-12-22 08:54:22,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:22,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:22,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219060943] [2020-12-22 08:54:22,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:22,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:22,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:22,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:22,617 INFO L87 Difference]: Start difference. First operand 1490 states and 2084 transitions. Second operand 9 states. [2020-12-22 08:54:26,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:26,550 INFO L93 Difference]: Finished difference Result 4414 states and 6470 transitions. [2020-12-22 08:54:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:54:26,551 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:54:26,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:26,554 INFO L225 Difference]: With dead ends: 4414 [2020-12-22 08:54:26,554 INFO L226 Difference]: Without dead ends: 3846 [2020-12-22 08:54:26,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:54:26,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2020-12-22 08:54:26,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 1490. [2020-12-22 08:54:26,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:54:26,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2083 transitions. [2020-12-22 08:54:26,942 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2083 transitions. Word has length 97 [2020-12-22 08:54:26,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:26,942 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2083 transitions. [2020-12-22 08:54:26,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:26,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2083 transitions. [2020-12-22 08:54:26,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:54:26,944 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:26,944 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:26,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-22 08:54:26,944 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:26,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:26,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1487727486, now seen corresponding path program 1 times [2020-12-22 08:54:26,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:26,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561057164] [2020-12-22 08:54:26,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:27,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:27,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561057164] [2020-12-22 08:54:27,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:27,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:54:27,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282302808] [2020-12-22 08:54:27,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:54:27,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:27,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:54:27,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:54:27,226 INFO L87 Difference]: Start difference. First operand 1490 states and 2083 transitions. Second operand 12 states. [2020-12-22 08:54:34,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:34,306 INFO L93 Difference]: Finished difference Result 4706 states and 6823 transitions. [2020-12-22 08:54:34,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:54:34,307 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-12-22 08:54:34,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:34,311 INFO L225 Difference]: With dead ends: 4706 [2020-12-22 08:54:34,311 INFO L226 Difference]: Without dead ends: 4135 [2020-12-22 08:54:34,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:54:34,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4135 states. [2020-12-22 08:54:34,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4135 to 1490. [2020-12-22 08:54:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:54:34,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2082 transitions. [2020-12-22 08:54:34,764 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2082 transitions. Word has length 97 [2020-12-22 08:54:34,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:34,764 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2082 transitions. [2020-12-22 08:54:34,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:54:34,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2082 transitions. [2020-12-22 08:54:34,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:54:34,765 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:34,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:34,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-22 08:54:34,766 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:34,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:34,766 INFO L82 PathProgramCache]: Analyzing trace with hash -2052103235, now seen corresponding path program 1 times [2020-12-22 08:54:34,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:34,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018209158] [2020-12-22 08:54:34,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:34,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:34,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018209158] [2020-12-22 08:54:34,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:34,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:34,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299600955] [2020-12-22 08:54:34,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:34,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:34,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:34,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:34,932 INFO L87 Difference]: Start difference. First operand 1490 states and 2082 transitions. Second operand 9 states. [2020-12-22 08:54:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:38,982 INFO L93 Difference]: Finished difference Result 4420 states and 6475 transitions. [2020-12-22 08:54:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:54:38,983 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:54:38,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:38,987 INFO L225 Difference]: With dead ends: 4420 [2020-12-22 08:54:38,987 INFO L226 Difference]: Without dead ends: 3846 [2020-12-22 08:54:38,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:54:38,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2020-12-22 08:54:39,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 1490. [2020-12-22 08:54:39,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:54:39,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2080 transitions. [2020-12-22 08:54:39,423 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2080 transitions. Word has length 97 [2020-12-22 08:54:39,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:39,424 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2080 transitions. [2020-12-22 08:54:39,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:39,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2080 transitions. [2020-12-22 08:54:39,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:54:39,425 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:39,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:39,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-12-22 08:54:39,426 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:39,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:39,426 INFO L82 PathProgramCache]: Analyzing trace with hash -139906133, now seen corresponding path program 1 times [2020-12-22 08:54:39,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:39,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147981510] [2020-12-22 08:54:39,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:39,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:39,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147981510] [2020-12-22 08:54:39,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:39,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:39,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814206829] [2020-12-22 08:54:39,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:39,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:39,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:39,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:39,614 INFO L87 Difference]: Start difference. First operand 1490 states and 2080 transitions. Second operand 9 states. [2020-12-22 08:54:43,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:43,433 INFO L93 Difference]: Finished difference Result 3312 states and 4780 transitions. [2020-12-22 08:54:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:54:43,434 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:54:43,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:43,436 INFO L225 Difference]: With dead ends: 3312 [2020-12-22 08:54:43,436 INFO L226 Difference]: Without dead ends: 2722 [2020-12-22 08:54:43,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:54:43,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2020-12-22 08:54:43,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1490. [2020-12-22 08:54:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:54:43,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2078 transitions. [2020-12-22 08:54:43,851 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2078 transitions. Word has length 97 [2020-12-22 08:54:43,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:43,851 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2078 transitions. [2020-12-22 08:54:43,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:43,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2078 transitions. [2020-12-22 08:54:43,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:54:43,852 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:43,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:43,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-22 08:54:43,853 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:43,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:43,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1430230902, now seen corresponding path program 1 times [2020-12-22 08:54:43,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:43,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511904734] [2020-12-22 08:54:43,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:44,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:44,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511904734] [2020-12-22 08:54:44,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:44,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:44,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76590945] [2020-12-22 08:54:44,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:44,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:44,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:44,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:44,040 INFO L87 Difference]: Start difference. First operand 1490 states and 2078 transitions. Second operand 9 states. [2020-12-22 08:54:48,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:48,175 INFO L93 Difference]: Finished difference Result 4417 states and 6467 transitions. [2020-12-22 08:54:48,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:54:48,176 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:54:48,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:48,180 INFO L225 Difference]: With dead ends: 4417 [2020-12-22 08:54:48,180 INFO L226 Difference]: Without dead ends: 3846 [2020-12-22 08:54:48,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:54:48,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2020-12-22 08:54:48,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 1490. [2020-12-22 08:54:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:54:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2077 transitions. [2020-12-22 08:54:48,615 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2077 transitions. Word has length 97 [2020-12-22 08:54:48,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:48,615 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2077 transitions. [2020-12-22 08:54:48,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:48,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2077 transitions. [2020-12-22 08:54:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:54:48,617 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:48,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:48,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-12-22 08:54:48,617 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:48,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:48,618 INFO L82 PathProgramCache]: Analyzing trace with hash -952539292, now seen corresponding path program 1 times [2020-12-22 08:54:48,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:48,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982269745] [2020-12-22 08:54:48,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:48,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:48,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982269745] [2020-12-22 08:54:48,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:48,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:48,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879203704] [2020-12-22 08:54:48,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:48,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:48,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:48,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:48,794 INFO L87 Difference]: Start difference. First operand 1490 states and 2077 transitions. Second operand 9 states. [2020-12-22 08:54:52,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:52,539 INFO L93 Difference]: Finished difference Result 3305 states and 4766 transitions. [2020-12-22 08:54:52,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:54:52,541 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:54:52,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:52,544 INFO L225 Difference]: With dead ends: 3305 [2020-12-22 08:54:52,544 INFO L226 Difference]: Without dead ends: 2722 [2020-12-22 08:54:52,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:54:52,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2020-12-22 08:54:52,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 1490. [2020-12-22 08:54:52,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-12-22 08:54:52,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 2076 transitions. [2020-12-22 08:54:52,959 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 2076 transitions. Word has length 97 [2020-12-22 08:54:52,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:52,959 INFO L481 AbstractCegarLoop]: Abstraction has 1490 states and 2076 transitions. [2020-12-22 08:54:52,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:52,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 2076 transitions. [2020-12-22 08:54:52,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:54:52,961 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:52,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:52,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-12-22 08:54:52,962 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:54:52,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:52,962 INFO L82 PathProgramCache]: Analyzing trace with hash -557790964, now seen corresponding path program 1 times [2020-12-22 08:54:52,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:52,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770448629] [2020-12-22 08:54:52,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:53,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:54:53,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770448629] [2020-12-22 08:54:53,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:53,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:54:53,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069150022] [2020-12-22 08:54:53,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:54:53,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:53,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:54:53,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:54:53,208 INFO L87 Difference]: Start difference. First operand 1490 states and 2076 transitions. Second operand 11 states. [2020-12-22 08:55:02,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:02,196 INFO L93 Difference]: Finished difference Result 8362 states and 12295 transitions. [2020-12-22 08:55:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:55:02,197 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-12-22 08:55:02,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:02,206 INFO L225 Difference]: With dead ends: 8362 [2020-12-22 08:55:02,206 INFO L226 Difference]: Without dead ends: 7743 [2020-12-22 08:55:02,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:55:02,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7743 states. [2020-12-22 08:55:02,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7743 to 1494. [2020-12-22 08:55:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:55:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2080 transitions. [2020-12-22 08:55:02,742 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2080 transitions. Word has length 97 [2020-12-22 08:55:02,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:02,743 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2080 transitions. [2020-12-22 08:55:02,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:55:02,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2080 transitions. [2020-12-22 08:55:02,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:55:02,744 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:02,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:02,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-12-22 08:55:02,744 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:02,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:02,745 INFO L82 PathProgramCache]: Analyzing trace with hash 934856710, now seen corresponding path program 1 times [2020-12-22 08:55:02,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:02,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535310623] [2020-12-22 08:55:02,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:02,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:02,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535310623] [2020-12-22 08:55:02,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:02,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:02,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090836346] [2020-12-22 08:55:02,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:02,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:02,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:02,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:02,906 INFO L87 Difference]: Start difference. First operand 1494 states and 2080 transitions. Second operand 9 states. [2020-12-22 08:55:07,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:07,810 INFO L93 Difference]: Finished difference Result 4416 states and 6464 transitions. [2020-12-22 08:55:07,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:55:07,814 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:55:07,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:07,818 INFO L225 Difference]: With dead ends: 4416 [2020-12-22 08:55:07,818 INFO L226 Difference]: Without dead ends: 3850 [2020-12-22 08:55:07,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:55:07,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2020-12-22 08:55:08,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 1494. [2020-12-22 08:55:08,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:55:08,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2079 transitions. [2020-12-22 08:55:08,289 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2079 transitions. Word has length 97 [2020-12-22 08:55:08,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:08,289 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2079 transitions. [2020-12-22 08:55:08,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:08,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2079 transitions. [2020-12-22 08:55:08,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:55:08,291 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:08,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:08,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-12-22 08:55:08,291 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:08,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:08,292 INFO L82 PathProgramCache]: Analyzing trace with hash -965955861, now seen corresponding path program 1 times [2020-12-22 08:55:08,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:08,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478653995] [2020-12-22 08:55:08,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:08,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478653995] [2020-12-22 08:55:08,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:08,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:55:08,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648946034] [2020-12-22 08:55:08,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:55:08,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:08,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:55:08,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:55:08,615 INFO L87 Difference]: Start difference. First operand 1494 states and 2079 transitions. Second operand 12 states. [2020-12-22 08:55:16,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:16,072 INFO L93 Difference]: Finished difference Result 4704 states and 6813 transitions. [2020-12-22 08:55:16,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:55:16,073 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-12-22 08:55:16,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:16,076 INFO L225 Difference]: With dead ends: 4704 [2020-12-22 08:55:16,076 INFO L226 Difference]: Without dead ends: 4136 [2020-12-22 08:55:16,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:55:16,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4136 states. [2020-12-22 08:55:16,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4136 to 1494. [2020-12-22 08:55:16,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:55:16,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2078 transitions. [2020-12-22 08:55:16,550 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2078 transitions. Word has length 97 [2020-12-22 08:55:16,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:16,550 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2078 transitions. [2020-12-22 08:55:16,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:55:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2078 transitions. [2020-12-22 08:55:16,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:55:16,552 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:16,552 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:16,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-12-22 08:55:16,552 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:16,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:16,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1614649937, now seen corresponding path program 1 times [2020-12-22 08:55:16,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:16,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447179286] [2020-12-22 08:55:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:16,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:16,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447179286] [2020-12-22 08:55:16,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:16,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:16,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091554246] [2020-12-22 08:55:16,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:16,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:16,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:16,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:16,740 INFO L87 Difference]: Start difference. First operand 1494 states and 2078 transitions. Second operand 9 states. [2020-12-22 08:55:21,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:21,297 INFO L93 Difference]: Finished difference Result 4420 states and 6466 transitions. [2020-12-22 08:55:21,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:55:21,298 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:55:21,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:21,301 INFO L225 Difference]: With dead ends: 4420 [2020-12-22 08:55:21,301 INFO L226 Difference]: Without dead ends: 3850 [2020-12-22 08:55:21,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:55:21,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2020-12-22 08:55:21,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 1494. [2020-12-22 08:55:21,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:55:21,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2076 transitions. [2020-12-22 08:55:21,789 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2076 transitions. Word has length 97 [2020-12-22 08:55:21,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:21,790 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2076 transitions. [2020-12-22 08:55:21,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:21,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2076 transitions. [2020-12-22 08:55:21,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:55:21,791 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:21,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:21,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-12-22 08:55:21,792 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:21,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:21,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1414714454, now seen corresponding path program 1 times [2020-12-22 08:55:21,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:21,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621469524] [2020-12-22 08:55:21,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:22,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:22,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621469524] [2020-12-22 08:55:22,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:22,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:55:22,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628312069] [2020-12-22 08:55:22,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:55:22,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:22,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:55:22,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:55:22,127 INFO L87 Difference]: Start difference. First operand 1494 states and 2076 transitions. Second operand 12 states. [2020-12-22 08:55:30,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:30,128 INFO L93 Difference]: Finished difference Result 4144 states and 5953 transitions. [2020-12-22 08:55:30,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:55:30,129 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2020-12-22 08:55:30,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:30,132 INFO L225 Difference]: With dead ends: 4144 [2020-12-22 08:55:30,132 INFO L226 Difference]: Without dead ends: 4139 [2020-12-22 08:55:30,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:55:30,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4139 states. [2020-12-22 08:55:30,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4139 to 1494. [2020-12-22 08:55:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:55:30,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2074 transitions. [2020-12-22 08:55:30,598 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2074 transitions. Word has length 97 [2020-12-22 08:55:30,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:30,598 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2074 transitions. [2020-12-22 08:55:30,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:55:30,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2074 transitions. [2020-12-22 08:55:30,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:55:30,600 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:30,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:30,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-12-22 08:55:30,600 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:30,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:30,600 INFO L82 PathProgramCache]: Analyzing trace with hash 610975350, now seen corresponding path program 1 times [2020-12-22 08:55:30,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:30,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491376042] [2020-12-22 08:55:30,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:30,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:30,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491376042] [2020-12-22 08:55:30,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:30,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:30,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38756612] [2020-12-22 08:55:30,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:30,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:30,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:30,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:30,777 INFO L87 Difference]: Start difference. First operand 1494 states and 2074 transitions. Second operand 9 states. [2020-12-22 08:55:35,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:35,492 INFO L93 Difference]: Finished difference Result 3855 states and 5601 transitions. [2020-12-22 08:55:35,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:55:35,493 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:55:35,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:35,496 INFO L225 Difference]: With dead ends: 3855 [2020-12-22 08:55:35,496 INFO L226 Difference]: Without dead ends: 3850 [2020-12-22 08:55:35,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:55:35,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2020-12-22 08:55:35,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 1494. [2020-12-22 08:55:35,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:55:35,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2072 transitions. [2020-12-22 08:55:35,989 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2072 transitions. Word has length 97 [2020-12-22 08:55:35,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:35,989 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2072 transitions. [2020-12-22 08:55:35,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:35,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2072 transitions. [2020-12-22 08:55:35,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:55:35,992 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:35,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:35,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-12-22 08:55:35,993 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:35,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:35,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1771794844, now seen corresponding path program 1 times [2020-12-22 08:55:35,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:35,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168557458] [2020-12-22 08:55:35,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:36,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:36,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168557458] [2020-12-22 08:55:36,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:36,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:36,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734123452] [2020-12-22 08:55:36,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:36,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:36,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:36,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:36,186 INFO L87 Difference]: Start difference. First operand 1494 states and 2072 transitions. Second operand 9 states. [2020-12-22 08:55:40,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:40,359 INFO L93 Difference]: Finished difference Result 2743 states and 3899 transitions. [2020-12-22 08:55:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:55:40,360 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:55:40,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:40,362 INFO L225 Difference]: With dead ends: 2743 [2020-12-22 08:55:40,362 INFO L226 Difference]: Without dead ends: 2726 [2020-12-22 08:55:40,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:55:40,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2020-12-22 08:55:40,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 1494. [2020-12-22 08:55:40,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:55:40,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2070 transitions. [2020-12-22 08:55:40,857 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2070 transitions. Word has length 97 [2020-12-22 08:55:40,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:40,857 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2070 transitions. [2020-12-22 08:55:40,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:40,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2070 transitions. [2020-12-22 08:55:40,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:55:40,858 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:40,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:40,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-12-22 08:55:40,859 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:40,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:40,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1121558854, now seen corresponding path program 1 times [2020-12-22 08:55:40,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:40,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37669852] [2020-12-22 08:55:40,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:41,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37669852] [2020-12-22 08:55:41,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:41,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:41,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208312475] [2020-12-22 08:55:41,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:41,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:41,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:41,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:41,032 INFO L87 Difference]: Start difference. First operand 1494 states and 2070 transitions. Second operand 9 states. [2020-12-22 08:55:46,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:46,012 INFO L93 Difference]: Finished difference Result 4418 states and 6456 transitions. [2020-12-22 08:55:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:55:46,013 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:55:46,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:46,016 INFO L225 Difference]: With dead ends: 4418 [2020-12-22 08:55:46,016 INFO L226 Difference]: Without dead ends: 3850 [2020-12-22 08:55:46,017 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:55:46,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2020-12-22 08:55:46,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 1494. [2020-12-22 08:55:46,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1494 states. [2020-12-22 08:55:46,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1494 states to 1494 states and 2069 transitions. [2020-12-22 08:55:46,521 INFO L78 Accepts]: Start accepts. Automaton has 1494 states and 2069 transitions. Word has length 97 [2020-12-22 08:55:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:46,521 INFO L481 AbstractCegarLoop]: Abstraction has 1494 states and 2069 transitions. [2020-12-22 08:55:46,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:46,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1494 states and 2069 transitions. [2020-12-22 08:55:46,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:55:46,523 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:46,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:46,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-12-22 08:55:46,523 INFO L429 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:55:46,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:46,524 INFO L82 PathProgramCache]: Analyzing trace with hash -144161225, now seen corresponding path program 1 times [2020-12-22 08:55:46,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:46,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009333680] [2020-12-22 08:55:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:46,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:55:46,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009333680] [2020-12-22 08:55:46,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:46,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:55:46,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206802308] [2020-12-22 08:55:46,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:55:46,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:46,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:55:46,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:55:46,814 INFO L87 Difference]: Start difference. First operand 1494 states and 2069 transitions. Second operand 12 states.