/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.BOUNDED-12.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:51:31,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:51:31,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:51:31,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:51:31,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:51:31,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:51:31,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:51:31,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:51:31,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:51:31,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:51:31,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:51:31,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:51:31,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:51:31,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:51:31,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:51:31,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:51:31,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:51:31,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:51:31,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:51:31,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:51:31,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:51:31,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:51:31,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:51:31,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:51:31,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:51:31,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:51:31,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:51:31,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:51:31,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:51:31,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:51:31,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:51:31,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:51:31,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:51:31,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:51:31,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:51:31,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:51:31,461 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:51:31,533 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:51:31,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:51:31,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:51:31,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:51:31,538 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:51:31,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:51:31,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:51:31,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:51:31,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:51:31,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:51:31,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:51:31,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:51:31,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:51:31,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:51:31,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:51:31,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:51:31,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:51:31,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:51:31,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:51:31,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:51:31,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:51:31,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:51:31,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:51:31,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:51:31,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:51:31,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:51:32,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:51:32,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:51:32,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:51:32,087 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:51:32,088 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:51:32,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2020-12-22 08:51:32,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e73a411b/5317a49c0b02470dbbb048fbb2741d1c/FLAG40e5abeec [2020-12-22 08:51:33,470 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:51:33,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2020-12-22 08:51:33,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e73a411b/5317a49c0b02470dbbb048fbb2741d1c/FLAG40e5abeec [2020-12-22 08:51:33,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e73a411b/5317a49c0b02470dbbb048fbb2741d1c [2020-12-22 08:51:33,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:51:33,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:51:33,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:51:33,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:51:33,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:51:33,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:51:33" (1/1) ... [2020-12-22 08:51:33,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cf6f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:33, skipping insertion in model container [2020-12-22 08:51:33,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:51:33" (1/1) ... [2020-12-22 08:51:33,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:51:34,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:51:35,268 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.BOUNDED-12.pals.c.v+sep-reducer.c[79950,79963] [2020-12-22 08:51:35,449 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.BOUNDED-12.pals.c.v+sep-reducer.c[115500,115513] [2020-12-22 08:51:35,521 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.BOUNDED-12.pals.c.v+sep-reducer.c[133304,133317] [2020-12-22 08:51:35,556 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.BOUNDED-12.pals.c.v+sep-reducer.c[142223,142236] [2020-12-22 08:51:35,574 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.BOUNDED-12.pals.c.v+sep-reducer.c[146656,146669] [2020-12-22 08:51:35,591 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.BOUNDED-12.pals.c.v+sep-reducer.c[150989,151002] [2020-12-22 08:51:35,702 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.BOUNDED-12.pals.c.v+sep-reducer.c[185825,185838] [2020-12-22 08:51:35,784 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.BOUNDED-12.pals.c.v+sep-reducer.c[203456,203469] [2020-12-22 08:51:35,816 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.BOUNDED-12.pals.c.v+sep-reducer.c[212412,212425] [2020-12-22 08:51:35,834 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.BOUNDED-12.pals.c.v+sep-reducer.c[216882,216895] [2020-12-22 08:51:35,851 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.BOUNDED-12.pals.c.v+sep-reducer.c[221252,221265] [2020-12-22 08:51:35,920 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.BOUNDED-12.pals.c.v+sep-reducer.c[240149,240162] [2020-12-22 08:51:35,955 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.BOUNDED-12.pals.c.v+sep-reducer.c[249105,249118] [2020-12-22 08:51:35,973 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.BOUNDED-12.pals.c.v+sep-reducer.c[253575,253588] [2020-12-22 08:51:35,990 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.BOUNDED-12.pals.c.v+sep-reducer.c[257945,257958] [2020-12-22 08:51:36,010 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.BOUNDED-12.pals.c.v+sep-reducer.c[262910,262923] [2020-12-22 08:51:36,028 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.BOUNDED-12.pals.c.v+sep-reducer.c[267289,267302] [2020-12-22 08:51:36,045 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.BOUNDED-12.pals.c.v+sep-reducer.c[271759,271772] [2020-12-22 08:51:36,066 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.BOUNDED-12.pals.c.v+sep-reducer.c[276129,276142] [2020-12-22 08:51:36,084 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.BOUNDED-12.pals.c.v+sep-reducer.c[280715,280728] [2020-12-22 08:51:36,103 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.BOUNDED-12.pals.c.v+sep-reducer.c[285252,285265] [2020-12-22 08:51:36,126 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.BOUNDED-12.pals.c.v+sep-reducer.c[289718,289731] [2020-12-22 08:51:36,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:51:36,243 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:51:36,780 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.BOUNDED-12.pals.c.v+sep-reducer.c[79950,79963] [2020-12-22 08:51:36,883 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.BOUNDED-12.pals.c.v+sep-reducer.c[115500,115513] [2020-12-22 08:51:36,934 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.BOUNDED-12.pals.c.v+sep-reducer.c[133304,133317] [2020-12-22 08:51:36,961 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.BOUNDED-12.pals.c.v+sep-reducer.c[142223,142236] [2020-12-22 08:51:36,975 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.BOUNDED-12.pals.c.v+sep-reducer.c[146656,146669] [2020-12-22 08:51:36,990 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.BOUNDED-12.pals.c.v+sep-reducer.c[150989,151002] [2020-12-22 08:51:37,096 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.BOUNDED-12.pals.c.v+sep-reducer.c[185825,185838] [2020-12-22 08:51:37,149 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.BOUNDED-12.pals.c.v+sep-reducer.c[203456,203469] [2020-12-22 08:51:37,179 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.BOUNDED-12.pals.c.v+sep-reducer.c[212412,212425] [2020-12-22 08:51:37,230 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.BOUNDED-12.pals.c.v+sep-reducer.c[216882,216895] [2020-12-22 08:51:37,249 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.BOUNDED-12.pals.c.v+sep-reducer.c[221252,221265] [2020-12-22 08:51:37,314 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.BOUNDED-12.pals.c.v+sep-reducer.c[240149,240162] [2020-12-22 08:51:37,350 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.BOUNDED-12.pals.c.v+sep-reducer.c[249105,249118] [2020-12-22 08:51:37,369 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.BOUNDED-12.pals.c.v+sep-reducer.c[253575,253588] [2020-12-22 08:51:37,384 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.BOUNDED-12.pals.c.v+sep-reducer.c[257945,257958] [2020-12-22 08:51:37,403 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.BOUNDED-12.pals.c.v+sep-reducer.c[262910,262923] [2020-12-22 08:51:37,422 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.BOUNDED-12.pals.c.v+sep-reducer.c[267289,267302] [2020-12-22 08:51:37,439 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.BOUNDED-12.pals.c.v+sep-reducer.c[271759,271772] [2020-12-22 08:51:37,457 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.BOUNDED-12.pals.c.v+sep-reducer.c[276129,276142] [2020-12-22 08:51:37,473 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.BOUNDED-12.pals.c.v+sep-reducer.c[280715,280728] [2020-12-22 08:51:37,488 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.BOUNDED-12.pals.c.v+sep-reducer.c[285252,285265] [2020-12-22 08:51:37,503 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.BOUNDED-12.pals.c.v+sep-reducer.c[289718,289731] [2020-12-22 08:51:37,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:51:37,596 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:51:37,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37 WrapperNode [2020-12-22 08:51:37,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:51:37,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:51:37,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:51:37,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:51:37,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37" (1/1) ... [2020-12-22 08:51:37,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37" (1/1) ... [2020-12-22 08:51:37,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:51:37,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:51:37,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:51:37,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:51:37,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37" (1/1) ... [2020-12-22 08:51:37,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37" (1/1) ... [2020-12-22 08:51:37,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37" (1/1) ... [2020-12-22 08:51:37,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37" (1/1) ... [2020-12-22 08:51:38,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37" (1/1) ... [2020-12-22 08:51:38,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37" (1/1) ... [2020-12-22 08:51:38,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37" (1/1) ... [2020-12-22 08:51:38,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:51:38,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:51:38,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:51:38,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:51:38,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37" (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 08:51:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:51:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:51:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:51:38,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:51:45,808 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:51:45,808 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:51:45,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:51:45 BoogieIcfgContainer [2020-12-22 08:51:45,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:51:45,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:51:45,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:51:45,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:51:45,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:51:33" (1/3) ... [2020-12-22 08:51:45,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de5d94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:51:45, skipping insertion in model container [2020-12-22 08:51:45,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:51:37" (2/3) ... [2020-12-22 08:51:45,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de5d94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:51:45, skipping insertion in model container [2020-12-22 08:51:45,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:51:45" (3/3) ... [2020-12-22 08:51:45,825 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2020-12-22 08:51:45,834 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:51:45,843 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-12-22 08:51:45,869 INFO L253 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-12-22 08:51:45,924 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:51:45,924 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:51:45,924 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:51:45,924 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:51:45,925 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:51:45,925 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:51:45,925 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:51:45,925 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:51:45,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states. [2020-12-22 08:51:46,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 08:51:46,030 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:46,031 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 08:51:46,032 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 08:51:46,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:46,040 INFO L82 PathProgramCache]: Analyzing trace with hash -876960142, now seen corresponding path program 1 times [2020-12-22 08:51:46,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:46,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978324598] [2020-12-22 08:51:46,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:46,856 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 08:51:46,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978324598] [2020-12-22 08:51:46,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:46,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:51:46,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089848517] [2020-12-22 08:51:46,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:51:46,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:46,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:51:46,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:51:46,885 INFO L87 Difference]: Start difference. First operand 2541 states. Second operand 6 states. [2020-12-22 08:51:51,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:51,003 INFO L93 Difference]: Finished difference Result 4196 states and 7108 transitions. [2020-12-22 08:51:51,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:51:51,006 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2020-12-22 08:51:51,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:51,064 INFO L225 Difference]: With dead ends: 4196 [2020-12-22 08:51:51,065 INFO L226 Difference]: Without dead ends: 2924 [2020-12-22 08:51:51,080 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 08:51:51,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2020-12-22 08:51:51,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2738. [2020-12-22 08:51:51,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2738 states. [2020-12-22 08:51:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2738 states to 2738 states and 3601 transitions. [2020-12-22 08:51:51,345 INFO L78 Accepts]: Start accepts. Automaton has 2738 states and 3601 transitions. Word has length 87 [2020-12-22 08:51:51,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:51,346 INFO L481 AbstractCegarLoop]: Abstraction has 2738 states and 3601 transitions. [2020-12-22 08:51:51,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:51:51,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2738 states and 3601 transitions. [2020-12-22 08:51:51,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 08:51:51,356 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:51,356 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 08:51:51,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:51:51,357 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 08:51:51,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:51,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1410328050, now seen corresponding path program 1 times [2020-12-22 08:51:51,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:51,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941609191] [2020-12-22 08:51:51,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:51,586 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 08:51:51,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941609191] [2020-12-22 08:51:51,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:51,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:51:51,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30864488] [2020-12-22 08:51:51,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:51:51,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:51,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:51:51,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:51:51,590 INFO L87 Difference]: Start difference. First operand 2738 states and 3601 transitions. Second operand 6 states. [2020-12-22 08:51:53,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:53,237 INFO L93 Difference]: Finished difference Result 3487 states and 4567 transitions. [2020-12-22 08:51:53,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:51:53,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2020-12-22 08:51:53,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:53,252 INFO L225 Difference]: With dead ends: 3487 [2020-12-22 08:51:53,259 INFO L226 Difference]: Without dead ends: 2167 [2020-12-22 08:51:53,263 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 08:51:53,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2020-12-22 08:51:53,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 2079. [2020-12-22 08:51:53,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2079 states. [2020-12-22 08:51:53,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 2776 transitions. [2020-12-22 08:51:53,387 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 2776 transitions. Word has length 87 [2020-12-22 08:51:53,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:53,390 INFO L481 AbstractCegarLoop]: Abstraction has 2079 states and 2776 transitions. [2020-12-22 08:51:53,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:51:53,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 2776 transitions. [2020-12-22 08:51:53,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 08:51:53,397 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:53,398 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 08:51:53,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:51:53,398 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 08:51:53,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:53,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1125625269, now seen corresponding path program 1 times [2020-12-22 08:51:53,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:53,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610175808] [2020-12-22 08:51:53,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:53,655 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 08:51:53,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610175808] [2020-12-22 08:51:53,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:53,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:51:53,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920119508] [2020-12-22 08:51:53,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:51:53,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:53,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:51:53,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:51:53,658 INFO L87 Difference]: Start difference. First operand 2079 states and 2776 transitions. Second operand 6 states. [2020-12-22 08:51:54,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:54,949 INFO L93 Difference]: Finished difference Result 3398 states and 4605 transitions. [2020-12-22 08:51:54,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:51:54,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2020-12-22 08:51:54,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:54,965 INFO L225 Difference]: With dead ends: 3398 [2020-12-22 08:51:54,965 INFO L226 Difference]: Without dead ends: 2384 [2020-12-22 08:51:54,969 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 08:51:54,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2020-12-22 08:51:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2296. [2020-12-22 08:51:55,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2296 states. [2020-12-22 08:51:55,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 3162 transitions. [2020-12-22 08:51:55,110 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 3162 transitions. Word has length 87 [2020-12-22 08:51:55,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:55,111 INFO L481 AbstractCegarLoop]: Abstraction has 2296 states and 3162 transitions. [2020-12-22 08:51:55,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:51:55,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 3162 transitions. [2020-12-22 08:51:55,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-22 08:51:55,117 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:55,117 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 08:51:55,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:51:55,118 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 08:51:55,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:55,118 INFO L82 PathProgramCache]: Analyzing trace with hash -229604869, now seen corresponding path program 1 times [2020-12-22 08:51:55,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:55,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55113480] [2020-12-22 08:51:55,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:55,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:55,336 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 08:51:55,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55113480] [2020-12-22 08:51:55,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:55,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:51:55,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180687641] [2020-12-22 08:51:55,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:51:55,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:55,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:51:55,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:51:55,341 INFO L87 Difference]: Start difference. First operand 2296 states and 3162 transitions. Second operand 5 states. [2020-12-22 08:51:56,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:56,768 INFO L93 Difference]: Finished difference Result 3421 states and 4767 transitions. [2020-12-22 08:51:56,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:51:56,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2020-12-22 08:51:56,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:56,785 INFO L225 Difference]: With dead ends: 3421 [2020-12-22 08:51:56,785 INFO L226 Difference]: Without dead ends: 2264 [2020-12-22 08:51:56,789 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 08:51:56,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2020-12-22 08:51:56,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 2264. [2020-12-22 08:51:56,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2264 states. [2020-12-22 08:51:56,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3118 transitions. [2020-12-22 08:51:56,938 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3118 transitions. Word has length 89 [2020-12-22 08:51:56,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:56,939 INFO L481 AbstractCegarLoop]: Abstraction has 2264 states and 3118 transitions. [2020-12-22 08:51:56,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:51:56,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3118 transitions. [2020-12-22 08:51:56,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-12-22 08:51:56,946 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:56,946 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 08:51:56,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:51:56,946 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 08:51:56,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:56,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1812856514, now seen corresponding path program 1 times [2020-12-22 08:51:56,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:56,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180019930] [2020-12-22 08:51:56,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:57,167 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 08:51:57,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180019930] [2020-12-22 08:51:57,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:57,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:51:57,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943992851] [2020-12-22 08:51:57,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:51:57,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:57,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:51:57,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:51:57,174 INFO L87 Difference]: Start difference. First operand 2264 states and 3118 transitions. Second operand 5 states. [2020-12-22 08:51:58,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:58,260 INFO L93 Difference]: Finished difference Result 3285 states and 4575 transitions. [2020-12-22 08:51:58,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:51:58,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-12-22 08:51:58,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:58,273 INFO L225 Difference]: With dead ends: 3285 [2020-12-22 08:51:58,274 INFO L226 Difference]: Without dead ends: 2096 [2020-12-22 08:51:58,278 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 08:51:58,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2020-12-22 08:51:58,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 2096. [2020-12-22 08:51:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-12-22 08:51:58,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 2898 transitions. [2020-12-22 08:51:58,437 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 2898 transitions. Word has length 91 [2020-12-22 08:51:58,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:58,438 INFO L481 AbstractCegarLoop]: Abstraction has 2096 states and 2898 transitions. [2020-12-22 08:51:58,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:51:58,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 2898 transitions. [2020-12-22 08:51:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 08:51:58,444 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:58,448 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 08:51:58,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:51:58,449 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 08:51:58,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:58,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1760300527, now seen corresponding path program 1 times [2020-12-22 08:51:58,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:58,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69265851] [2020-12-22 08:51:58,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:51:58,696 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 08:51:58,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69265851] [2020-12-22 08:51:58,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:51:58,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:51:58,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287902659] [2020-12-22 08:51:58,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:51:58,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:51:58,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:51:58,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:51:58,707 INFO L87 Difference]: Start difference. First operand 2096 states and 2898 transitions. Second operand 5 states. [2020-12-22 08:51:59,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:51:59,579 INFO L93 Difference]: Finished difference Result 3329 states and 4642 transitions. [2020-12-22 08:51:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:51:59,580 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2020-12-22 08:51:59,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:51:59,592 INFO L225 Difference]: With dead ends: 3329 [2020-12-22 08:51:59,592 INFO L226 Difference]: Without dead ends: 2036 [2020-12-22 08:51:59,595 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 08:51:59,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2020-12-22 08:51:59,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 2036. [2020-12-22 08:51:59,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2036 states. [2020-12-22 08:51:59,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2036 states to 2036 states and 2817 transitions. [2020-12-22 08:51:59,768 INFO L78 Accepts]: Start accepts. Automaton has 2036 states and 2817 transitions. Word has length 93 [2020-12-22 08:51:59,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:51:59,769 INFO L481 AbstractCegarLoop]: Abstraction has 2036 states and 2817 transitions. [2020-12-22 08:51:59,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:51:59,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2036 states and 2817 transitions. [2020-12-22 08:51:59,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:51:59,773 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:51:59,774 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 08:51:59,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:51:59,774 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 08:51:59,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:51:59,775 INFO L82 PathProgramCache]: Analyzing trace with hash 328441748, now seen corresponding path program 1 times [2020-12-22 08:51:59,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:51:59,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587356758] [2020-12-22 08:51:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:51:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:00,058 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 08:52:00,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587356758] [2020-12-22 08:52:00,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:00,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:52:00,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256522155] [2020-12-22 08:52:00,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:52:00,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:00,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:52:00,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:52:00,062 INFO L87 Difference]: Start difference. First operand 2036 states and 2817 transitions. Second operand 8 states. [2020-12-22 08:52:01,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:01,953 INFO L93 Difference]: Finished difference Result 3543 states and 4884 transitions. [2020-12-22 08:52:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:52:01,953 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 95 [2020-12-22 08:52:01,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:01,966 INFO L225 Difference]: With dead ends: 3543 [2020-12-22 08:52:01,966 INFO L226 Difference]: Without dead ends: 2471 [2020-12-22 08:52:01,969 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 08:52:01,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2020-12-22 08:52:02,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 1624. [2020-12-22 08:52:02,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1624 states. [2020-12-22 08:52:02,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2238 transitions. [2020-12-22 08:52:02,121 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2238 transitions. Word has length 95 [2020-12-22 08:52:02,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:02,121 INFO L481 AbstractCegarLoop]: Abstraction has 1624 states and 2238 transitions. [2020-12-22 08:52:02,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:52:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2238 transitions. [2020-12-22 08:52:02,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:52:02,125 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:02,125 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 08:52:02,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:52:02,126 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 08:52:02,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:02,126 INFO L82 PathProgramCache]: Analyzing trace with hash 556118932, now seen corresponding path program 1 times [2020-12-22 08:52:02,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:02,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189096743] [2020-12-22 08:52:02,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:02,448 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 08:52:02,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189096743] [2020-12-22 08:52:02,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:02,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:02,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541471664] [2020-12-22 08:52:02,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:02,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:02,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:02,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:02,451 INFO L87 Difference]: Start difference. First operand 1624 states and 2238 transitions. Second operand 9 states. [2020-12-22 08:52:04,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:04,638 INFO L93 Difference]: Finished difference Result 3330 states and 4749 transitions. [2020-12-22 08:52:04,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:04,639 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:52:04,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:04,654 INFO L225 Difference]: With dead ends: 3330 [2020-12-22 08:52:04,654 INFO L226 Difference]: Without dead ends: 2500 [2020-12-22 08:52:04,657 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 08:52:04,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2020-12-22 08:52:04,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 1624. [2020-12-22 08:52:04,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1624 states. [2020-12-22 08:52:04,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2237 transitions. [2020-12-22 08:52:04,862 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2237 transitions. Word has length 95 [2020-12-22 08:52:04,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:04,862 INFO L481 AbstractCegarLoop]: Abstraction has 1624 states and 2237 transitions. [2020-12-22 08:52:04,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:04,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2237 transitions. [2020-12-22 08:52:04,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 08:52:04,866 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:04,866 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 08:52:04,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:52:04,867 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 08:52:04,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:04,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1071889132, now seen corresponding path program 1 times [2020-12-22 08:52:04,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:04,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123416234] [2020-12-22 08:52:04,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:05,128 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 08:52:05,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123416234] [2020-12-22 08:52:05,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:05,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:05,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510374418] [2020-12-22 08:52:05,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:05,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:05,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:05,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:05,131 INFO L87 Difference]: Start difference. First operand 1624 states and 2237 transitions. Second operand 9 states. [2020-12-22 08:52:07,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:07,770 INFO L93 Difference]: Finished difference Result 4606 states and 6577 transitions. [2020-12-22 08:52:07,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:07,770 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-12-22 08:52:07,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:07,793 INFO L225 Difference]: With dead ends: 4606 [2020-12-22 08:52:07,793 INFO L226 Difference]: Without dead ends: 3924 [2020-12-22 08:52:07,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:52:07,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3924 states. [2020-12-22 08:52:07,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3924 to 1624. [2020-12-22 08:52:07,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1624 states. [2020-12-22 08:52:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2236 transitions. [2020-12-22 08:52:07,991 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2236 transitions. Word has length 95 [2020-12-22 08:52:07,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:07,991 INFO L481 AbstractCegarLoop]: Abstraction has 1624 states and 2236 transitions. [2020-12-22 08:52:07,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:07,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2236 transitions. [2020-12-22 08:52:07,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 08:52:07,995 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:07,995 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 08:52:07,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:52:07,996 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 08:52:07,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:07,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1164032538, now seen corresponding path program 1 times [2020-12-22 08:52:07,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:07,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682637176] [2020-12-22 08:52:07,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:08,222 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 08:52:08,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682637176] [2020-12-22 08:52:08,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:08,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:08,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433198147] [2020-12-22 08:52:08,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:08,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:08,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:08,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:08,225 INFO L87 Difference]: Start difference. First operand 1624 states and 2236 transitions. Second operand 9 states. [2020-12-22 08:52:10,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:10,984 INFO L93 Difference]: Finished difference Result 4474 states and 6391 transitions. [2020-12-22 08:52:10,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:10,985 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-12-22 08:52:10,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:11,003 INFO L225 Difference]: With dead ends: 4474 [2020-12-22 08:52:11,004 INFO L226 Difference]: Without dead ends: 3865 [2020-12-22 08:52:11,007 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 08:52:11,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3865 states. [2020-12-22 08:52:11,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3865 to 1624. [2020-12-22 08:52:11,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1624 states. [2020-12-22 08:52:11,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2235 transitions. [2020-12-22 08:52:11,222 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2235 transitions. Word has length 96 [2020-12-22 08:52:11,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:11,223 INFO L481 AbstractCegarLoop]: Abstraction has 1624 states and 2235 transitions. [2020-12-22 08:52:11,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:11,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2235 transitions. [2020-12-22 08:52:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:52:11,227 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:11,227 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 08:52:11,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:52:11,227 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 08:52:11,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:11,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1887012889, now seen corresponding path program 1 times [2020-12-22 08:52:11,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:11,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129659383] [2020-12-22 08:52:11,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:11,530 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 08:52:11,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129659383] [2020-12-22 08:52:11,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:11,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:52:11,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632973438] [2020-12-22 08:52:11,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:52:11,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:11,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:52:11,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:52:11,533 INFO L87 Difference]: Start difference. First operand 1624 states and 2235 transitions. Second operand 11 states. [2020-12-22 08:52:15,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:15,113 INFO L93 Difference]: Finished difference Result 4035 states and 5708 transitions. [2020-12-22 08:52:15,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:52:15,113 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-12-22 08:52:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:15,124 INFO L225 Difference]: With dead ends: 4035 [2020-12-22 08:52:15,124 INFO L226 Difference]: Without dead ends: 3173 [2020-12-22 08:52:15,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-12-22 08:52:15,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2020-12-22 08:52:15,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 1629. [2020-12-22 08:52:15,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-12-22 08:52:15,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2240 transitions. [2020-12-22 08:52:15,354 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2240 transitions. Word has length 97 [2020-12-22 08:52:15,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:15,355 INFO L481 AbstractCegarLoop]: Abstraction has 1629 states and 2240 transitions. [2020-12-22 08:52:15,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:52:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2240 transitions. [2020-12-22 08:52:15,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:52:15,359 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:15,359 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 08:52:15,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:52:15,361 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 08:52:15,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:15,368 INFO L82 PathProgramCache]: Analyzing trace with hash -2083812519, now seen corresponding path program 1 times [2020-12-22 08:52:15,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:15,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917500730] [2020-12-22 08:52:15,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:15,612 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 08:52:15,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917500730] [2020-12-22 08:52:15,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:15,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:15,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979667377] [2020-12-22 08:52:15,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:15,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:15,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:15,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:15,615 INFO L87 Difference]: Start difference. First operand 1629 states and 2240 transitions. Second operand 9 states. [2020-12-22 08:52:18,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:18,254 INFO L93 Difference]: Finished difference Result 4481 states and 6396 transitions. [2020-12-22 08:52:18,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:18,255 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:52:18,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:18,269 INFO L225 Difference]: With dead ends: 4481 [2020-12-22 08:52:18,269 INFO L226 Difference]: Without dead ends: 3870 [2020-12-22 08:52:18,273 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 08:52:18,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3870 states. [2020-12-22 08:52:18,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3870 to 1629. [2020-12-22 08:52:18,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-12-22 08:52:18,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2239 transitions. [2020-12-22 08:52:18,537 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2239 transitions. Word has length 97 [2020-12-22 08:52:18,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:18,537 INFO L481 AbstractCegarLoop]: Abstraction has 1629 states and 2239 transitions. [2020-12-22 08:52:18,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:18,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2239 transitions. [2020-12-22 08:52:18,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:52:18,542 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:18,542 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 08:52:18,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:52:18,542 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 08:52:18,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:18,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1112735129, now seen corresponding path program 1 times [2020-12-22 08:52:18,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:18,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835977871] [2020-12-22 08:52:18,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:18,759 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 08:52:18,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835977871] [2020-12-22 08:52:18,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:18,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:18,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321520095] [2020-12-22 08:52:18,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:18,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:18,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:18,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:18,762 INFO L87 Difference]: Start difference. First operand 1629 states and 2239 transitions. Second operand 9 states. [2020-12-22 08:52:21,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:21,578 INFO L93 Difference]: Finished difference Result 4595 states and 6551 transitions. [2020-12-22 08:52:21,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:21,578 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:52:21,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:21,586 INFO L225 Difference]: With dead ends: 4595 [2020-12-22 08:52:21,586 INFO L226 Difference]: Without dead ends: 3929 [2020-12-22 08:52:21,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:52:21,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2020-12-22 08:52:21,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 1629. [2020-12-22 08:52:21,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-12-22 08:52:21,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2238 transitions. [2020-12-22 08:52:21,849 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2238 transitions. Word has length 97 [2020-12-22 08:52:21,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:21,849 INFO L481 AbstractCegarLoop]: Abstraction has 1629 states and 2238 transitions. [2020-12-22 08:52:21,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:21,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2238 transitions. [2020-12-22 08:52:21,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:52:21,853 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:21,853 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 08:52:21,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:52:21,853 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 08:52:21,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:21,854 INFO L82 PathProgramCache]: Analyzing trace with hash 725787161, now seen corresponding path program 1 times [2020-12-22 08:52:21,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:21,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630938061] [2020-12-22 08:52:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:22,108 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 08:52:22,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630938061] [2020-12-22 08:52:22,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:22,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:52:22,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172127528] [2020-12-22 08:52:22,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:52:22,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:22,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:52:22,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:52:22,111 INFO L87 Difference]: Start difference. First operand 1629 states and 2238 transitions. Second operand 11 states. [2020-12-22 08:52:27,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:27,876 INFO L93 Difference]: Finished difference Result 8654 states and 12558 transitions. [2020-12-22 08:52:27,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:52:27,876 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-12-22 08:52:27,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:27,894 INFO L225 Difference]: With dead ends: 8654 [2020-12-22 08:52:27,895 INFO L226 Difference]: Without dead ends: 8043 [2020-12-22 08:52:27,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:52:27,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8043 states. [2020-12-22 08:52:28,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8043 to 1634. [2020-12-22 08:52:28,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-12-22 08:52:28,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2243 transitions. [2020-12-22 08:52:28,291 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2243 transitions. Word has length 97 [2020-12-22 08:52:28,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:28,292 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states and 2243 transitions. [2020-12-22 08:52:28,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:52:28,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2243 transitions. [2020-12-22 08:52:28,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:52:28,296 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:28,296 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 08:52:28,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:52:28,298 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 08:52:28,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:28,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1939604839, now seen corresponding path program 1 times [2020-12-22 08:52:28,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:28,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505407519] [2020-12-22 08:52:28,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:28,597 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 08:52:28,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505407519] [2020-12-22 08:52:28,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:28,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:28,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364430052] [2020-12-22 08:52:28,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:28,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:28,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:28,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:28,600 INFO L87 Difference]: Start difference. First operand 1634 states and 2243 transitions. Second operand 9 states. [2020-12-22 08:52:32,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:32,065 INFO L93 Difference]: Finished difference Result 4613 states and 6647 transitions. [2020-12-22 08:52:32,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:52:32,065 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:52:32,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:32,073 INFO L225 Difference]: With dead ends: 4613 [2020-12-22 08:52:32,073 INFO L226 Difference]: Without dead ends: 4030 [2020-12-22 08:52:32,075 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 08:52:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4030 states. [2020-12-22 08:52:32,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4030 to 1634. [2020-12-22 08:52:32,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-12-22 08:52:32,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2242 transitions. [2020-12-22 08:52:32,399 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2242 transitions. Word has length 97 [2020-12-22 08:52:32,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:32,399 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states and 2242 transitions. [2020-12-22 08:52:32,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:32,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2242 transitions. [2020-12-22 08:52:32,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:52:32,402 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:32,402 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 08:52:32,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:52:32,403 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 08:52:32,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:32,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1267448231, now seen corresponding path program 1 times [2020-12-22 08:52:32,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:32,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403675622] [2020-12-22 08:52:32,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:32,670 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 08:52:32,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403675622] [2020-12-22 08:52:32,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:32,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:52:32,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442374722] [2020-12-22 08:52:32,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:52:32,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:32,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:52:32,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:52:32,673 INFO L87 Difference]: Start difference. First operand 1634 states and 2242 transitions. Second operand 11 states. [2020-12-22 08:52:33,241 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-22 08:52:39,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:39,112 INFO L93 Difference]: Finished difference Result 9526 states and 13840 transitions. [2020-12-22 08:52:39,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:52:39,112 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 97 [2020-12-22 08:52:39,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:39,121 INFO L225 Difference]: With dead ends: 9526 [2020-12-22 08:52:39,121 INFO L226 Difference]: Without dead ends: 8823 [2020-12-22 08:52:39,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:52:39,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8823 states. [2020-12-22 08:52:39,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8823 to 1639. [2020-12-22 08:52:39,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1639 states. [2020-12-22 08:52:39,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2247 transitions. [2020-12-22 08:52:39,505 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2247 transitions. Word has length 97 [2020-12-22 08:52:39,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:39,506 INFO L481 AbstractCegarLoop]: Abstraction has 1639 states and 2247 transitions. [2020-12-22 08:52:39,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:52:39,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2247 transitions. [2020-12-22 08:52:39,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 08:52:39,509 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:39,510 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 08:52:39,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:52:39,510 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 08:52:39,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:39,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1888632039, now seen corresponding path program 1 times [2020-12-22 08:52:39,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:39,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462098620] [2020-12-22 08:52:39,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:39,717 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 08:52:39,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462098620] [2020-12-22 08:52:39,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:39,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:39,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494035657] [2020-12-22 08:52:39,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:39,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:39,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:39,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:39,720 INFO L87 Difference]: Start difference. First operand 1639 states and 2247 transitions. Second operand 9 states. [2020-12-22 08:52:42,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:42,943 INFO L93 Difference]: Finished difference Result 4491 states and 6404 transitions. [2020-12-22 08:52:42,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:52:42,945 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-12-22 08:52:42,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:42,950 INFO L225 Difference]: With dead ends: 4491 [2020-12-22 08:52:42,950 INFO L226 Difference]: Without dead ends: 3875 [2020-12-22 08:52:42,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:52:42,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3875 states. [2020-12-22 08:52:43,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3875 to 1639. [2020-12-22 08:52:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1639 states. [2020-12-22 08:52:43,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2246 transitions. [2020-12-22 08:52:43,314 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2246 transitions. Word has length 97 [2020-12-22 08:52:43,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:43,314 INFO L481 AbstractCegarLoop]: Abstraction has 1639 states and 2246 transitions. [2020-12-22 08:52:43,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:43,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2246 transitions. [2020-12-22 08:52:43,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:52:43,317 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:43,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:43,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:52:43,318 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 08:52:43,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:43,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1325336959, now seen corresponding path program 1 times [2020-12-22 08:52:43,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:43,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592806005] [2020-12-22 08:52:43,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:43,530 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 08:52:43,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592806005] [2020-12-22 08:52:43,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:43,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:43,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855609168] [2020-12-22 08:52:43,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:43,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:43,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:43,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:43,532 INFO L87 Difference]: Start difference. First operand 1639 states and 2246 transitions. Second operand 9 states. [2020-12-22 08:52:46,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:46,810 INFO L93 Difference]: Finished difference Result 4619 states and 6651 transitions. [2020-12-22 08:52:46,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:52:46,810 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-12-22 08:52:46,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:46,815 INFO L225 Difference]: With dead ends: 4619 [2020-12-22 08:52:46,815 INFO L226 Difference]: Without dead ends: 4035 [2020-12-22 08:52:46,818 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 08:52:46,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4035 states. [2020-12-22 08:52:47,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4035 to 1639. [2020-12-22 08:52:47,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1639 states. [2020-12-22 08:52:47,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2245 transitions. [2020-12-22 08:52:47,094 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2245 transitions. Word has length 98 [2020-12-22 08:52:47,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:47,094 INFO L481 AbstractCegarLoop]: Abstraction has 1639 states and 2245 transitions. [2020-12-22 08:52:47,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:47,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2245 transitions. [2020-12-22 08:52:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:52:47,098 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:47,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:47,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:52:47,098 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 08:52:47,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:47,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1077039647, now seen corresponding path program 1 times [2020-12-22 08:52:47,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:47,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840961813] [2020-12-22 08:52:47,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:47,354 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 08:52:47,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840961813] [2020-12-22 08:52:47,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:47,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:47,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708176765] [2020-12-22 08:52:47,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:47,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:47,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:47,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:47,356 INFO L87 Difference]: Start difference. First operand 1639 states and 2245 transitions. Second operand 9 states. [2020-12-22 08:52:50,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:50,974 INFO L93 Difference]: Finished difference Result 4619 states and 6650 transitions. [2020-12-22 08:52:50,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:52:50,974 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-12-22 08:52:50,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:50,978 INFO L225 Difference]: With dead ends: 4619 [2020-12-22 08:52:50,978 INFO L226 Difference]: Without dead ends: 4035 [2020-12-22 08:52:50,980 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 08:52:50,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4035 states. [2020-12-22 08:52:51,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4035 to 1639. [2020-12-22 08:52:51,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1639 states. [2020-12-22 08:52:51,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2244 transitions. [2020-12-22 08:52:51,239 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2244 transitions. Word has length 98 [2020-12-22 08:52:51,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:51,240 INFO L481 AbstractCegarLoop]: Abstraction has 1639 states and 2244 transitions. [2020-12-22 08:52:51,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:52:51,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2244 transitions. [2020-12-22 08:52:51,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:52:51,243 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:51,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:51,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:52:51,243 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 08:52:51,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:51,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1588992191, now seen corresponding path program 1 times [2020-12-22 08:52:51,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:51,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296477378] [2020-12-22 08:52:51,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:51,558 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 08:52:51,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296477378] [2020-12-22 08:52:51,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:51,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:52:51,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193969437] [2020-12-22 08:52:51,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:52:51,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:51,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:52:51,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:52:51,561 INFO L87 Difference]: Start difference. First operand 1639 states and 2244 transitions. Second operand 12 states. [2020-12-22 08:52:57,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:52:57,783 INFO L93 Difference]: Finished difference Result 5341 states and 7636 transitions. [2020-12-22 08:52:57,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:52:57,784 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 98 [2020-12-22 08:52:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:52:57,790 INFO L225 Difference]: With dead ends: 5341 [2020-12-22 08:52:57,790 INFO L226 Difference]: Without dead ends: 4757 [2020-12-22 08:52:57,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:52:57,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2020-12-22 08:52:58,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 1639. [2020-12-22 08:52:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1639 states. [2020-12-22 08:52:58,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2243 transitions. [2020-12-22 08:52:58,124 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2243 transitions. Word has length 98 [2020-12-22 08:52:58,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:52:58,124 INFO L481 AbstractCegarLoop]: Abstraction has 1639 states and 2243 transitions. [2020-12-22 08:52:58,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:52:58,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2243 transitions. [2020-12-22 08:52:58,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:52:58,127 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:52:58,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:52:58,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:52:58,127 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 08:52:58,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:52:58,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1926953537, now seen corresponding path program 1 times [2020-12-22 08:52:58,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:52:58,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489832787] [2020-12-22 08:52:58,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:52:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:52:58,337 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 08:52:58,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489832787] [2020-12-22 08:52:58,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:52:58,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:52:58,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767994363] [2020-12-22 08:52:58,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:52:58,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:52:58,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:52:58,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:52:58,340 INFO L87 Difference]: Start difference. First operand 1639 states and 2243 transitions. Second operand 9 states. [2020-12-22 08:53:01,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:01,644 INFO L93 Difference]: Finished difference Result 4610 states and 6636 transitions. [2020-12-22 08:53:01,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:53:01,644 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-12-22 08:53:01,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:01,648 INFO L225 Difference]: With dead ends: 4610 [2020-12-22 08:53:01,648 INFO L226 Difference]: Without dead ends: 4035 [2020-12-22 08:53:01,649 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 08:53:01,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4035 states. [2020-12-22 08:53:01,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4035 to 1639. [2020-12-22 08:53:01,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1639 states. [2020-12-22 08:53:01,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2242 transitions. [2020-12-22 08:53:01,974 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2242 transitions. Word has length 98 [2020-12-22 08:53:01,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:01,974 INFO L481 AbstractCegarLoop]: Abstraction has 1639 states and 2242 transitions. [2020-12-22 08:53:01,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2242 transitions. [2020-12-22 08:53:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:53:01,977 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:01,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:01,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:53:01,977 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 08:53:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:01,978 INFO L82 PathProgramCache]: Analyzing trace with hash 80681185, now seen corresponding path program 1 times [2020-12-22 08:53:01,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:01,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981130758] [2020-12-22 08:53:01,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:02,164 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 08:53:02,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981130758] [2020-12-22 08:53:02,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:02,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:02,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435449197] [2020-12-22 08:53:02,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:02,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:02,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:02,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:02,166 INFO L87 Difference]: Start difference. First operand 1639 states and 2242 transitions. Second operand 9 states. [2020-12-22 08:53:05,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:05,538 INFO L93 Difference]: Finished difference Result 4486 states and 6391 transitions. [2020-12-22 08:53:05,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:05,539 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-12-22 08:53:05,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:05,543 INFO L225 Difference]: With dead ends: 4486 [2020-12-22 08:53:05,544 INFO L226 Difference]: Without dead ends: 3875 [2020-12-22 08:53:05,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:53:05,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3875 states. [2020-12-22 08:53:05,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3875 to 1634. [2020-12-22 08:53:05,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-12-22 08:53:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2236 transitions. [2020-12-22 08:53:05,846 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2236 transitions. Word has length 98 [2020-12-22 08:53:05,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:05,846 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states and 2236 transitions. [2020-12-22 08:53:05,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:05,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2236 transitions. [2020-12-22 08:53:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:53:05,848 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:05,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:05,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:53:05,849 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 08:53:05,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:05,849 INFO L82 PathProgramCache]: Analyzing trace with hash -650592069, now seen corresponding path program 1 times [2020-12-22 08:53:05,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:05,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222352951] [2020-12-22 08:53:05,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:06,065 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 08:53:06,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222352951] [2020-12-22 08:53:06,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:06,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:06,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922016188] [2020-12-22 08:53:06,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:06,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:06,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:06,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:06,067 INFO L87 Difference]: Start difference. First operand 1634 states and 2236 transitions. Second operand 9 states. [2020-12-22 08:53:09,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:09,347 INFO L93 Difference]: Finished difference Result 4632 states and 6595 transitions. [2020-12-22 08:53:09,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:09,348 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-12-22 08:53:09,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:09,351 INFO L225 Difference]: With dead ends: 4632 [2020-12-22 08:53:09,351 INFO L226 Difference]: Without dead ends: 3929 [2020-12-22 08:53:09,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:53:09,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2020-12-22 08:53:09,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 1629. [2020-12-22 08:53:09,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-12-22 08:53:09,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2230 transitions. [2020-12-22 08:53:09,709 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2230 transitions. Word has length 98 [2020-12-22 08:53:09,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:09,710 INFO L481 AbstractCegarLoop]: Abstraction has 1629 states and 2230 transitions. [2020-12-22 08:53:09,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:09,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2230 transitions. [2020-12-22 08:53:09,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:53:09,712 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:09,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:09,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:53:09,712 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 08:53:09,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:09,713 INFO L82 PathProgramCache]: Analyzing trace with hash -542784863, now seen corresponding path program 1 times [2020-12-22 08:53:09,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:09,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394067761] [2020-12-22 08:53:09,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:09,912 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 08:53:09,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394067761] [2020-12-22 08:53:09,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:09,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:09,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34308826] [2020-12-22 08:53:09,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:09,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:09,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:09,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:09,914 INFO L87 Difference]: Start difference. First operand 1629 states and 2230 transitions. Second operand 9 states. [2020-12-22 08:53:13,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:13,923 INFO L93 Difference]: Finished difference Result 4609 states and 6635 transitions. [2020-12-22 08:53:13,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:53:13,924 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-12-22 08:53:13,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:13,928 INFO L225 Difference]: With dead ends: 4609 [2020-12-22 08:53:13,928 INFO L226 Difference]: Without dead ends: 4025 [2020-12-22 08:53:13,929 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 08:53:13,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4025 states. [2020-12-22 08:53:14,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4025 to 1629. [2020-12-22 08:53:14,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-12-22 08:53:14,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2229 transitions. [2020-12-22 08:53:14,240 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2229 transitions. Word has length 98 [2020-12-22 08:53:14,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:14,240 INFO L481 AbstractCegarLoop]: Abstraction has 1629 states and 2229 transitions. [2020-12-22 08:53:14,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:14,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2229 transitions. [2020-12-22 08:53:14,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 08:53:14,242 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:14,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:14,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:53:14,242 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 08:53:14,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:14,243 INFO L82 PathProgramCache]: Analyzing trace with hash 573168917, now seen corresponding path program 1 times [2020-12-22 08:53:14,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:14,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396942501] [2020-12-22 08:53:14,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:14,427 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 08:53:14,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396942501] [2020-12-22 08:53:14,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:14,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:14,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935444459] [2020-12-22 08:53:14,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:14,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:14,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:14,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:14,429 INFO L87 Difference]: Start difference. First operand 1629 states and 2229 transitions. Second operand 9 states. [2020-12-22 08:53:16,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:16,971 INFO L93 Difference]: Finished difference Result 3367 states and 4768 transitions. [2020-12-22 08:53:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:53:16,976 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-12-22 08:53:16,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:16,980 INFO L225 Difference]: With dead ends: 3367 [2020-12-22 08:53:16,980 INFO L226 Difference]: Without dead ends: 2505 [2020-12-22 08:53:16,982 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 08:53:16,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2020-12-22 08:53:17,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 1624. [2020-12-22 08:53:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1624 states. [2020-12-22 08:53:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2223 transitions. [2020-12-22 08:53:17,404 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2223 transitions. Word has length 98 [2020-12-22 08:53:17,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:17,404 INFO L481 AbstractCegarLoop]: Abstraction has 1624 states and 2223 transitions. [2020-12-22 08:53:17,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:17,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2223 transitions. [2020-12-22 08:53:17,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:53:17,406 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:17,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:17,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:53:17,407 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 08:53:17,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:17,407 INFO L82 PathProgramCache]: Analyzing trace with hash -308070434, now seen corresponding path program 1 times [2020-12-22 08:53:17,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:17,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648244575] [2020-12-22 08:53:17,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:17,645 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 08:53:17,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648244575] [2020-12-22 08:53:17,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:17,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:53:17,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792194181] [2020-12-22 08:53:17,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:53:17,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:17,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:53:17,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:53:17,648 INFO L87 Difference]: Start difference. First operand 1624 states and 2223 transitions. Second operand 11 states. [2020-12-22 08:53:25,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:25,340 INFO L93 Difference]: Finished difference Result 9566 states and 13858 transitions. [2020-12-22 08:53:25,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:53:25,340 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 99 [2020-12-22 08:53:25,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:25,348 INFO L225 Difference]: With dead ends: 9566 [2020-12-22 08:53:25,349 INFO L226 Difference]: Without dead ends: 8838 [2020-12-22 08:53:25,351 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 08:53:25,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8838 states. [2020-12-22 08:53:25,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8838 to 1629. [2020-12-22 08:53:25,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-12-22 08:53:25,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2228 transitions. [2020-12-22 08:53:25,745 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2228 transitions. Word has length 99 [2020-12-22 08:53:25,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:25,746 INFO L481 AbstractCegarLoop]: Abstraction has 1629 states and 2228 transitions. [2020-12-22 08:53:25,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:53:25,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2228 transitions. [2020-12-22 08:53:25,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:53:25,747 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:25,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:25,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:53:25,748 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 08:53:25,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:25,748 INFO L82 PathProgramCache]: Analyzing trace with hash 234210846, now seen corresponding path program 1 times [2020-12-22 08:53:25,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:25,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571815850] [2020-12-22 08:53:25,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:25,942 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 08:53:25,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571815850] [2020-12-22 08:53:25,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:25,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:25,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810812735] [2020-12-22 08:53:25,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:25,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:25,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:25,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:25,944 INFO L87 Difference]: Start difference. First operand 1629 states and 2228 transitions. Second operand 9 states. [2020-12-22 08:53:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:29,366 INFO L93 Difference]: Finished difference Result 4491 states and 6393 transitions. [2020-12-22 08:53:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:53:29,366 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-12-22 08:53:29,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:29,370 INFO L225 Difference]: With dead ends: 4491 [2020-12-22 08:53:29,370 INFO L226 Difference]: Without dead ends: 3870 [2020-12-22 08:53:29,372 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 08:53:29,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3870 states. [2020-12-22 08:53:29,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3870 to 1629. [2020-12-22 08:53:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-12-22 08:53:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2227 transitions. [2020-12-22 08:53:29,756 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2227 transitions. Word has length 99 [2020-12-22 08:53:29,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:29,756 INFO L481 AbstractCegarLoop]: Abstraction has 1629 states and 2227 transitions. [2020-12-22 08:53:29,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:29,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2227 transitions. [2020-12-22 08:53:29,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:53:29,758 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:29,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:29,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:53:29,758 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 08:53:29,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:29,758 INFO L82 PathProgramCache]: Analyzing trace with hash -271572002, now seen corresponding path program 1 times [2020-12-22 08:53:29,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:29,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788177723] [2020-12-22 08:53:29,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:29,977 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 08:53:29,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788177723] [2020-12-22 08:53:29,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:29,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:29,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720396787] [2020-12-22 08:53:29,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:29,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:29,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:29,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:29,980 INFO L87 Difference]: Start difference. First operand 1629 states and 2227 transitions. Second operand 9 states. [2020-12-22 08:53:34,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:34,128 INFO L93 Difference]: Finished difference Result 4613 states and 6636 transitions. [2020-12-22 08:53:34,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:53:34,129 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-12-22 08:53:34,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:34,132 INFO L225 Difference]: With dead ends: 4613 [2020-12-22 08:53:34,132 INFO L226 Difference]: Without dead ends: 4025 [2020-12-22 08:53:34,134 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 08:53:34,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4025 states. [2020-12-22 08:53:34,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4025 to 1629. [2020-12-22 08:53:34,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-12-22 08:53:34,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2226 transitions. [2020-12-22 08:53:34,492 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2226 transitions. Word has length 99 [2020-12-22 08:53:34,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:34,493 INFO L481 AbstractCegarLoop]: Abstraction has 1629 states and 2226 transitions. [2020-12-22 08:53:34,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2226 transitions. [2020-12-22 08:53:34,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:53:34,495 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:34,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:34,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:53:34,496 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 08:53:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:34,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1756072034, now seen corresponding path program 1 times [2020-12-22 08:53:34,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:34,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860778183] [2020-12-22 08:53:34,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:34,744 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 08:53:34,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860778183] [2020-12-22 08:53:34,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:34,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:53:34,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901824703] [2020-12-22 08:53:34,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:53:34,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:34,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:53:34,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:53:34,747 INFO L87 Difference]: Start difference. First operand 1629 states and 2226 transitions. Second operand 11 states. [2020-12-22 08:53:35,303 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-22 08:53:42,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:42,814 INFO L93 Difference]: Finished difference Result 8656 states and 12536 transitions. [2020-12-22 08:53:42,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:53:42,815 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 99 [2020-12-22 08:53:42,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:42,822 INFO L225 Difference]: With dead ends: 8656 [2020-12-22 08:53:42,822 INFO L226 Difference]: Without dead ends: 8044 [2020-12-22 08:53:42,824 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 08:53:42,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8044 states. [2020-12-22 08:53:43,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8044 to 1634. [2020-12-22 08:53:43,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-12-22 08:53:43,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2231 transitions. [2020-12-22 08:53:43,261 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2231 transitions. Word has length 99 [2020-12-22 08:53:43,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:43,262 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states and 2231 transitions. [2020-12-22 08:53:43,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:53:43,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2231 transitions. [2020-12-22 08:53:43,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:53:43,263 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:43,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:43,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 08:53:43,264 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 08:53:43,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:43,264 INFO L82 PathProgramCache]: Analyzing trace with hash 786851038, now seen corresponding path program 1 times [2020-12-22 08:53:43,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:43,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048241015] [2020-12-22 08:53:43,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:43,473 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 08:53:43,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048241015] [2020-12-22 08:53:43,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:43,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:43,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321440848] [2020-12-22 08:53:43,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:43,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:43,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:43,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:43,477 INFO L87 Difference]: Start difference. First operand 1634 states and 2231 transitions. Second operand 9 states. [2020-12-22 08:53:47,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:47,293 INFO L93 Difference]: Finished difference Result 4618 states and 6639 transitions. [2020-12-22 08:53:47,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:53:47,294 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-12-22 08:53:47,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:47,297 INFO L225 Difference]: With dead ends: 4618 [2020-12-22 08:53:47,297 INFO L226 Difference]: Without dead ends: 4030 [2020-12-22 08:53:47,298 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 08:53:47,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4030 states. [2020-12-22 08:53:47,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4030 to 1634. [2020-12-22 08:53:47,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-12-22 08:53:47,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2230 transitions. [2020-12-22 08:53:47,672 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2230 transitions. Word has length 99 [2020-12-22 08:53:47,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:47,673 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states and 2230 transitions. [2020-12-22 08:53:47,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:47,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2230 transitions. [2020-12-22 08:53:47,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:53:47,675 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:47,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:47,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 08:53:47,675 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 08:53:47,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:47,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1499205730, now seen corresponding path program 1 times [2020-12-22 08:53:47,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:47,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742669365] [2020-12-22 08:53:47,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:47,960 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 08:53:47,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742669365] [2020-12-22 08:53:47,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:47,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:53:47,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911094079] [2020-12-22 08:53:47,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:53:47,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:47,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:53:47,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:53:47,962 INFO L87 Difference]: Start difference. First operand 1634 states and 2230 transitions. Second operand 12 states. [2020-12-22 08:53:54,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:54,892 INFO L93 Difference]: Finished difference Result 5344 states and 7628 transitions. [2020-12-22 08:53:54,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:53:54,892 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-12-22 08:53:54,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:54,897 INFO L225 Difference]: With dead ends: 5344 [2020-12-22 08:53:54,897 INFO L226 Difference]: Without dead ends: 4756 [2020-12-22 08:53:54,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:53:54,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2020-12-22 08:53:55,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 1634. [2020-12-22 08:53:55,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-12-22 08:53:55,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2229 transitions. [2020-12-22 08:53:55,290 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2229 transitions. Word has length 99 [2020-12-22 08:53:55,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:55,291 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states and 2229 transitions. [2020-12-22 08:53:55,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:53:55,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2229 transitions. [2020-12-22 08:53:55,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:53:55,292 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:55,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:55,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 08:53:55,293 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 08:53:55,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:55,293 INFO L82 PathProgramCache]: Analyzing trace with hash -370973194, now seen corresponding path program 1 times [2020-12-22 08:53:55,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:55,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559714023] [2020-12-22 08:53:55,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:53:55,494 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 08:53:55,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559714023] [2020-12-22 08:53:55,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:53:55,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:53:55,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591298333] [2020-12-22 08:53:55,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:53:55,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:53:55,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:53:55,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:53:55,496 INFO L87 Difference]: Start difference. First operand 1634 states and 2229 transitions. Second operand 9 states. [2020-12-22 08:53:59,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:53:59,330 INFO L93 Difference]: Finished difference Result 4604 states and 6621 transitions. [2020-12-22 08:53:59,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:53:59,331 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-12-22 08:53:59,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:53:59,336 INFO L225 Difference]: With dead ends: 4604 [2020-12-22 08:53:59,336 INFO L226 Difference]: Without dead ends: 4029 [2020-12-22 08:53:59,338 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 08:53:59,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2020-12-22 08:53:59,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 1633. [2020-12-22 08:53:59,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1633 states. [2020-12-22 08:53:59,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2227 transitions. [2020-12-22 08:53:59,836 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2227 transitions. Word has length 99 [2020-12-22 08:53:59,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:53:59,836 INFO L481 AbstractCegarLoop]: Abstraction has 1633 states and 2227 transitions. [2020-12-22 08:53:59,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:53:59,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2227 transitions. [2020-12-22 08:53:59,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:53:59,838 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:53:59,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:53:59,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 08:53:59,838 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 08:53:59,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:53:59,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1320721534, now seen corresponding path program 1 times [2020-12-22 08:53:59,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:53:59,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171799280] [2020-12-22 08:53:59,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:53:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:00,138 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 08:54:00,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171799280] [2020-12-22 08:54:00,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:00,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:54:00,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772048983] [2020-12-22 08:54:00,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:54:00,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:00,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:54:00,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:54:00,140 INFO L87 Difference]: Start difference. First operand 1633 states and 2227 transitions. Second operand 12 states. [2020-12-22 08:54:07,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:07,172 INFO L93 Difference]: Finished difference Result 5343 states and 7625 transitions. [2020-12-22 08:54:07,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:54:07,173 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-12-22 08:54:07,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:07,177 INFO L225 Difference]: With dead ends: 5343 [2020-12-22 08:54:07,177 INFO L226 Difference]: Without dead ends: 4755 [2020-12-22 08:54:07,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:54:07,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2020-12-22 08:54:07,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 1633. [2020-12-22 08:54:07,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1633 states. [2020-12-22 08:54:07,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2226 transitions. [2020-12-22 08:54:07,616 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2226 transitions. Word has length 99 [2020-12-22 08:54:07,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:07,616 INFO L481 AbstractCegarLoop]: Abstraction has 1633 states and 2226 transitions. [2020-12-22 08:54:07,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:54:07,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2226 transitions. [2020-12-22 08:54:07,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:54:07,618 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:07,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:07,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 08:54:07,618 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 08:54:07,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:07,619 INFO L82 PathProgramCache]: Analyzing trace with hash 193533868, now seen corresponding path program 1 times [2020-12-22 08:54:07,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:07,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514045146] [2020-12-22 08:54:07,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:07,823 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 08:54:07,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514045146] [2020-12-22 08:54:07,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:07,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:07,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233228096] [2020-12-22 08:54:07,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:07,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:07,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:07,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:07,825 INFO L87 Difference]: Start difference. First operand 1633 states and 2226 transitions. Second operand 9 states. [2020-12-22 08:54:11,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:11,971 INFO L93 Difference]: Finished difference Result 4603 states and 6618 transitions. [2020-12-22 08:54:11,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:54:11,972 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-12-22 08:54:11,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:11,975 INFO L225 Difference]: With dead ends: 4603 [2020-12-22 08:54:11,975 INFO L226 Difference]: Without dead ends: 4028 [2020-12-22 08:54:11,976 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 08:54:11,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4028 states. [2020-12-22 08:54:12,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4028 to 1632. [2020-12-22 08:54:12,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1632 states. [2020-12-22 08:54:12,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2224 transitions. [2020-12-22 08:54:12,386 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2224 transitions. Word has length 99 [2020-12-22 08:54:12,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:12,386 INFO L481 AbstractCegarLoop]: Abstraction has 1632 states and 2224 transitions. [2020-12-22 08:54:12,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:12,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2224 transitions. [2020-12-22 08:54:12,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:54:12,388 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:12,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:12,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 08:54:12,389 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 08:54:12,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:12,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1237089452, now seen corresponding path program 1 times [2020-12-22 08:54:12,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:12,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651092373] [2020-12-22 08:54:12,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:12,640 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 08:54:12,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651092373] [2020-12-22 08:54:12,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:12,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:54:12,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451194149] [2020-12-22 08:54:12,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:54:12,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:12,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:54:12,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:54:12,642 INFO L87 Difference]: Start difference. First operand 1632 states and 2224 transitions. Second operand 9 states. [2020-12-22 08:54:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:16,704 INFO L93 Difference]: Finished difference Result 4602 states and 6616 transitions. [2020-12-22 08:54:16,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:54:16,705 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-12-22 08:54:16,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:16,709 INFO L225 Difference]: With dead ends: 4602 [2020-12-22 08:54:16,709 INFO L226 Difference]: Without dead ends: 4026 [2020-12-22 08:54:16,710 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 08:54:16,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4026 states. [2020-12-22 08:54:17,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4026 to 1630. [2020-12-22 08:54:17,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1630 states. [2020-12-22 08:54:17,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2220 transitions. [2020-12-22 08:54:17,134 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2220 transitions. Word has length 99 [2020-12-22 08:54:17,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:17,134 INFO L481 AbstractCegarLoop]: Abstraction has 1630 states and 2220 transitions. [2020-12-22 08:54:17,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:54:17,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2220 transitions. [2020-12-22 08:54:17,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:54:17,136 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:17,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:17,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 08:54:17,136 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 08:54:17,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:17,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1049556564, now seen corresponding path program 1 times [2020-12-22 08:54:17,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:17,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219955730] [2020-12-22 08:54:17,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:17,441 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 08:54:17,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219955730] [2020-12-22 08:54:17,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:17,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:54:17,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724651626] [2020-12-22 08:54:17,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:54:17,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:17,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:54:17,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:54:17,443 INFO L87 Difference]: Start difference. First operand 1630 states and 2220 transitions. Second operand 12 states. [2020-12-22 08:54:24,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:54:24,422 INFO L93 Difference]: Finished difference Result 4924 states and 6998 transitions. [2020-12-22 08:54:24,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:54:24,423 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2020-12-22 08:54:24,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:54:24,427 INFO L225 Difference]: With dead ends: 4924 [2020-12-22 08:54:24,427 INFO L226 Difference]: Without dead ends: 4349 [2020-12-22 08:54:24,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:54:24,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4349 states. [2020-12-22 08:54:24,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4349 to 1629. [2020-12-22 08:54:24,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-12-22 08:54:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2218 transitions. [2020-12-22 08:54:24,898 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2218 transitions. Word has length 99 [2020-12-22 08:54:24,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:54:24,898 INFO L481 AbstractCegarLoop]: Abstraction has 1629 states and 2218 transitions. [2020-12-22 08:54:24,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:54:24,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2218 transitions. [2020-12-22 08:54:24,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:54:24,900 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:54:24,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:54:24,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 08:54:24,900 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 08:54:24,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:54:24,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1664921314, now seen corresponding path program 1 times [2020-12-22 08:54:24,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:54:24,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288417040] [2020-12-22 08:54:24,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:54:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:54:27,483 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 08:54:27,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288417040] [2020-12-22 08:54:27,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:54:27,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2020-12-22 08:54:27,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135238575] [2020-12-22 08:54:27,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-12-22 08:54:27,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:54:27,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-12-22 08:54:27,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1225, Unknown=0, NotChecked=0, Total=1332 [2020-12-22 08:54:27,486 INFO L87 Difference]: Start difference. First operand 1629 states and 2218 transitions. Second operand 37 states. [2020-12-22 08:54:28,448 WARN L197 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 166 [2020-12-22 08:54:29,162 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2020-12-22 08:54:29,390 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2020-12-22 08:54:29,618 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2020-12-22 08:54:29,844 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2020-12-22 08:54:30,073 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2020-12-22 08:54:30,312 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-22 08:54:30,577 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-22 08:54:31,400 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-12-22 08:54:31,808 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-12-22 08:54:32,339 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2020-12-22 08:54:32,905 WARN L197 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-12-22 08:54:33,559 WARN L197 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2020-12-22 08:54:33,947 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 08:54:34,299 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 08:54:34,820 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-12-22 08:54:35,239 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-12-22 08:54:35,730 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-22 08:54:36,147 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-22 08:54:36,678 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-12-22 08:54:37,146 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-12-22 08:54:37,492 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2020-12-22 08:54:37,816 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-12-22 08:54:38,233 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-12-22 08:54:38,682 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-12-22 08:54:39,377 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-12-22 08:54:39,699 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-12-22 08:54:40,193 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-12-22 08:54:40,779 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-12-22 08:54:41,841 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2020-12-22 08:54:42,144 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-12-22 08:54:42,974 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-12-22 08:54:43,877 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-12-22 08:55:02,977 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2020-12-22 08:55:04,356 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-12-22 08:55:05,880 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2020-12-22 08:55:07,235 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 08:55:10,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:10,890 INFO L93 Difference]: Finished difference Result 8181 states and 11832 transitions. [2020-12-22 08:55:10,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-12-22 08:55:10,892 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 99 [2020-12-22 08:55:10,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:10,898 INFO L225 Difference]: With dead ends: 8181 [2020-12-22 08:55:10,898 INFO L226 Difference]: Without dead ends: 7606 [2020-12-22 08:55:10,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1186 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=1065, Invalid=5415, Unknown=0, NotChecked=0, Total=6480 [2020-12-22 08:55:10,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7606 states. [2020-12-22 08:55:11,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7606 to 1629. [2020-12-22 08:55:11,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-12-22 08:55:11,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2217 transitions. [2020-12-22 08:55:11,467 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2217 transitions. Word has length 99 [2020-12-22 08:55:11,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:11,467 INFO L481 AbstractCegarLoop]: Abstraction has 1629 states and 2217 transitions. [2020-12-22 08:55:11,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-12-22 08:55:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2217 transitions. [2020-12-22 08:55:11,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:55:11,469 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:11,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:11,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 08:55:11,469 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 08:55:11,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:11,470 INFO L82 PathProgramCache]: Analyzing trace with hash 29188819, now seen corresponding path program 1 times [2020-12-22 08:55:11,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:11,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046694045] [2020-12-22 08:55:11,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:11,701 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 08:55:11,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046694045] [2020-12-22 08:55:11,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:11,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:55:11,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735303719] [2020-12-22 08:55:11,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:55:11,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:11,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:55:11,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:55:11,705 INFO L87 Difference]: Start difference. First operand 1629 states and 2217 transitions. Second operand 9 states. [2020-12-22 08:55:17,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:55:17,852 INFO L93 Difference]: Finished difference Result 4609 states and 6622 transitions. [2020-12-22 08:55:17,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:55:17,854 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2020-12-22 08:55:17,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:55:17,857 INFO L225 Difference]: With dead ends: 4609 [2020-12-22 08:55:17,857 INFO L226 Difference]: Without dead ends: 4025 [2020-12-22 08:55:17,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:55:17,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4025 states. [2020-12-22 08:55:18,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4025 to 1629. [2020-12-22 08:55:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-12-22 08:55:18,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2216 transitions. [2020-12-22 08:55:18,396 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2216 transitions. Word has length 99 [2020-12-22 08:55:18,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:55:18,397 INFO L481 AbstractCegarLoop]: Abstraction has 1629 states and 2216 transitions. [2020-12-22 08:55:18,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:55:18,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2216 transitions. [2020-12-22 08:55:18,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 08:55:18,398 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:55:18,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:55:18,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-22 08:55:18,399 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 08:55:18,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:55:18,399 INFO L82 PathProgramCache]: Analyzing trace with hash -178103298, now seen corresponding path program 1 times [2020-12-22 08:55:18,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:55:18,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168753547] [2020-12-22 08:55:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:55:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:55:18,751 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 08:55:18,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168753547] [2020-12-22 08:55:18,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:55:18,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:55:18,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642953888] [2020-12-22 08:55:18,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:55:18,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:55:18,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:55:18,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:55:18,753 INFO L87 Difference]: Start difference. First operand 1629 states and 2216 transitions. Second operand 12 states.