/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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:44:40,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:44:40,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:44:40,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:44:40,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:44:40,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:44:40,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:44:40,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:44:40,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:44:40,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:44:40,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:44:40,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:44:40,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:44:40,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:44:40,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:44:40,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:44:40,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:44:40,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:44:40,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:44:40,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:44:40,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:44:40,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:44:40,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:44:40,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:44:40,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:44:40,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:44:40,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:44:40,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:44:40,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:44:40,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:44:40,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:44:40,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:44:40,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:44:40,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:44:40,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:44:40,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:44:40,810 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:44:40,835 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:44:40,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:44:40,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:44:40,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:44:40,837 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:44:40,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:44:40,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:44:40,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:44:40,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:44:40,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:44:40,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:44:40,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:44:40,839 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:44:40,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:44:40,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:44:40,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:44:40,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:44:40,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:44:40,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:44:40,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:44:40,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:44:40,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:44:40,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:44:40,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:44:40,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:44:40,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:44:41,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:44:41,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:44:41,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:44:41,240 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:44:41,240 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:44:41,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-12-22 08:44:41,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0098a3a6/39913d2e52184d75bd50e01accb27f37/FLAG6becd3a01 [2020-12-22 08:44:42,230 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:44:42,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-12-22 08:44:42,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0098a3a6/39913d2e52184d75bd50e01accb27f37/FLAG6becd3a01 [2020-12-22 08:44:42,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0098a3a6/39913d2e52184d75bd50e01accb27f37 [2020-12-22 08:44:42,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:44:42,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:44:42,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:44:42,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:44:42,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:44:42,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:44:42" (1/1) ... [2020-12-22 08:44:42,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14926fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:42, skipping insertion in model container [2020-12-22 08:44:42,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:44:42" (1/1) ... [2020-12-22 08:44:42,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:44:42,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:44:42,823 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11159,11172] [2020-12-22 08:44:42,851 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15236,15249] [2020-12-22 08:44:42,861 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16457,16470] [2020-12-22 08:44:42,867 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17163,17176] [2020-12-22 08:44:42,878 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[18749,18762] [2020-12-22 08:44:42,884 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19455,19468] [2020-12-22 08:44:42,892 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20526,20539] [2020-12-22 08:44:42,907 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23016,23029] [2020-12-22 08:44:42,913 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23725,23738] [2020-12-22 08:44:42,920 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24762,24775] [2020-12-22 08:44:42,932 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[26700,26713] [2020-12-22 08:44:42,958 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[30734,30747] [2020-12-22 08:44:42,964 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31443,31456] [2020-12-22 08:44:42,971 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32517,32530] [2020-12-22 08:44:42,994 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34492,34505] [2020-12-22 08:44:43,037 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[37873,37886] [2020-12-22 08:44:43,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:44:43,302 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:44:43,504 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11159,11172] [2020-12-22 08:44:43,524 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15236,15249] [2020-12-22 08:44:43,534 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16457,16470] [2020-12-22 08:44:43,540 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17163,17176] [2020-12-22 08:44:43,564 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[18749,18762] [2020-12-22 08:44:43,570 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19455,19468] [2020-12-22 08:44:43,577 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20526,20539] [2020-12-22 08:44:43,596 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23016,23029] [2020-12-22 08:44:43,600 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23725,23738] [2020-12-22 08:44:43,606 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24762,24775] [2020-12-22 08:44:43,619 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[26700,26713] [2020-12-22 08:44:43,634 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[30734,30747] [2020-12-22 08:44:43,638 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31443,31456] [2020-12-22 08:44:43,645 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32517,32530] [2020-12-22 08:44:43,655 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34492,34505] [2020-12-22 08:44:43,668 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.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[37873,37886] [2020-12-22 08:44:43,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:44:43,841 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:44:43,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43 WrapperNode [2020-12-22 08:44:43,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:44:43,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:44:43,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:44:43,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:44:43,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43" (1/1) ... [2020-12-22 08:44:43,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43" (1/1) ... [2020-12-22 08:44:44,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:44:44,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:44:44,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:44:44,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:44:44,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43" (1/1) ... [2020-12-22 08:44:44,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43" (1/1) ... [2020-12-22 08:44:44,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43" (1/1) ... [2020-12-22 08:44:44,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43" (1/1) ... [2020-12-22 08:44:44,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43" (1/1) ... [2020-12-22 08:44:44,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43" (1/1) ... [2020-12-22 08:44:44,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43" (1/1) ... [2020-12-22 08:44:44,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:44:44,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:44:44,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:44:44,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:44:44,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43" (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 08:44:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:44:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:44:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:44:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:44:47,020 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:44:47,020 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:44:47,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:44:47 BoogieIcfgContainer [2020-12-22 08:44:47,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:44:47,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:44:47,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:44:47,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:44:47,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:44:42" (1/3) ... [2020-12-22 08:44:47,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32477070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:44:47, skipping insertion in model container [2020-12-22 08:44:47,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:44:43" (2/3) ... [2020-12-22 08:44:47,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32477070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:44:47, skipping insertion in model container [2020-12-22 08:44:47,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:44:47" (3/3) ... [2020-12-22 08:44:47,032 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2020-12-22 08:44:47,039 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:44:47,045 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-22 08:44:47,065 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-22 08:44:47,096 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:44:47,097 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:44:47,097 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:44:47,097 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:44:47,097 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:44:47,097 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:44:47,097 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:44:47,098 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:44:47,128 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states. [2020-12-22 08:44:47,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 08:44:47,148 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:44:47,149 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] [2020-12-22 08:44:47,150 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:44:47,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:44:47,156 INFO L82 PathProgramCache]: Analyzing trace with hash -729096350, now seen corresponding path program 1 times [2020-12-22 08:44:47,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:44:47,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029277437] [2020-12-22 08:44:47,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:44:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:44:47,717 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 08:44:47,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029277437] [2020-12-22 08:44:47,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:44:47,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:44:47,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423657368] [2020-12-22 08:44:47,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:44:47,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:44:47,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:44:47,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:44:47,748 INFO L87 Difference]: Start difference. First operand 629 states. Second operand 6 states. [2020-12-22 08:44:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:44:48,523 INFO L93 Difference]: Finished difference Result 1188 states and 2037 transitions. [2020-12-22 08:44:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:44:48,525 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-12-22 08:44:48,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:44:48,558 INFO L225 Difference]: With dead ends: 1188 [2020-12-22 08:44:48,558 INFO L226 Difference]: Without dead ends: 713 [2020-12-22 08:44:48,568 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 08:44:48,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-12-22 08:44:48,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 653. [2020-12-22 08:44:48,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-12-22 08:44:48,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 866 transitions. [2020-12-22 08:44:48,702 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 866 transitions. Word has length 72 [2020-12-22 08:44:48,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:44:48,703 INFO L481 AbstractCegarLoop]: Abstraction has 653 states and 866 transitions. [2020-12-22 08:44:48,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:44:48,703 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 866 transitions. [2020-12-22 08:44:48,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 08:44:48,712 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:44:48,713 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] [2020-12-22 08:44:48,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:44:48,713 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:44:48,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:44:48,714 INFO L82 PathProgramCache]: Analyzing trace with hash 68832319, now seen corresponding path program 1 times [2020-12-22 08:44:48,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:44:48,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292046106] [2020-12-22 08:44:48,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:44:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:44:49,006 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 08:44:49,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292046106] [2020-12-22 08:44:49,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:44:49,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:44:49,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451256274] [2020-12-22 08:44:49,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:44:49,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:44:49,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:44:49,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:44:49,013 INFO L87 Difference]: Start difference. First operand 653 states and 866 transitions. Second operand 6 states. [2020-12-22 08:44:49,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:44:49,447 INFO L93 Difference]: Finished difference Result 1371 states and 1843 transitions. [2020-12-22 08:44:49,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:44:49,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 73 [2020-12-22 08:44:49,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:44:49,452 INFO L225 Difference]: With dead ends: 1371 [2020-12-22 08:44:49,452 INFO L226 Difference]: Without dead ends: 841 [2020-12-22 08:44:49,454 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 08:44:49,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2020-12-22 08:44:49,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 783. [2020-12-22 08:44:49,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2020-12-22 08:44:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1058 transitions. [2020-12-22 08:44:49,496 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1058 transitions. Word has length 73 [2020-12-22 08:44:49,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:44:49,496 INFO L481 AbstractCegarLoop]: Abstraction has 783 states and 1058 transitions. [2020-12-22 08:44:49,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:44:49,497 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1058 transitions. [2020-12-22 08:44:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 08:44:49,498 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:44:49,499 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] [2020-12-22 08:44:49,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:44:49,499 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:44:49,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:44:49,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1945372389, now seen corresponding path program 1 times [2020-12-22 08:44:49,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:44:49,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16987802] [2020-12-22 08:44:49,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:44:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:44:49,639 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 08:44:49,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16987802] [2020-12-22 08:44:49,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:44:49,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:44:49,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967934789] [2020-12-22 08:44:49,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:44:49,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:44:49,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:44:49,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:44:49,643 INFO L87 Difference]: Start difference. First operand 783 states and 1058 transitions. Second operand 6 states. [2020-12-22 08:44:50,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:44:50,104 INFO L93 Difference]: Finished difference Result 1859 states and 2561 transitions. [2020-12-22 08:44:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:44:50,105 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2020-12-22 08:44:50,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:44:50,113 INFO L225 Difference]: With dead ends: 1859 [2020-12-22 08:44:50,113 INFO L226 Difference]: Without dead ends: 1167 [2020-12-22 08:44:50,115 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 08:44:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2020-12-22 08:44:50,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1107. [2020-12-22 08:44:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1107 states. [2020-12-22 08:44:50,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1541 transitions. [2020-12-22 08:44:50,179 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1541 transitions. Word has length 74 [2020-12-22 08:44:50,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:44:50,180 INFO L481 AbstractCegarLoop]: Abstraction has 1107 states and 1541 transitions. [2020-12-22 08:44:50,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:44:50,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1541 transitions. [2020-12-22 08:44:50,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:44:50,184 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:44:50,184 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] [2020-12-22 08:44:50,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:44:50,185 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:44:50,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:44:50,186 INFO L82 PathProgramCache]: Analyzing trace with hash 452485952, now seen corresponding path program 1 times [2020-12-22 08:44:50,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:44:50,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760546515] [2020-12-22 08:44:50,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:44:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:44:50,350 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 08:44:50,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760546515] [2020-12-22 08:44:50,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:44:50,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:44:50,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837536775] [2020-12-22 08:44:50,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:44:50,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:44:50,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:44:50,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:44:50,357 INFO L87 Difference]: Start difference. First operand 1107 states and 1541 transitions. Second operand 5 states. [2020-12-22 08:44:50,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:44:50,728 INFO L93 Difference]: Finished difference Result 2123 states and 2988 transitions. [2020-12-22 08:44:50,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:44:50,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2020-12-22 08:44:50,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:44:50,740 INFO L225 Difference]: With dead ends: 2123 [2020-12-22 08:44:50,740 INFO L226 Difference]: Without dead ends: 1085 [2020-12-22 08:44:50,742 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 08:44:50,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2020-12-22 08:44:50,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 1085. [2020-12-22 08:44:50,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1085 states. [2020-12-22 08:44:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1509 transitions. [2020-12-22 08:44:50,810 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1509 transitions. Word has length 75 [2020-12-22 08:44:50,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:44:50,812 INFO L481 AbstractCegarLoop]: Abstraction has 1085 states and 1509 transitions. [2020-12-22 08:44:50,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:44:50,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1509 transitions. [2020-12-22 08:44:50,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 08:44:50,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:44:50,814 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] [2020-12-22 08:44:50,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:44:50,815 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:44:50,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:44:50,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1831461910, now seen corresponding path program 1 times [2020-12-22 08:44:50,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:44:50,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071905939] [2020-12-22 08:44:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:44:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:44:50,934 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 08:44:50,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071905939] [2020-12-22 08:44:50,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:44:50,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:44:50,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69619667] [2020-12-22 08:44:50,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:44:50,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:44:50,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:44:50,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:44:50,937 INFO L87 Difference]: Start difference. First operand 1085 states and 1509 transitions. Second operand 5 states. [2020-12-22 08:44:51,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:44:51,260 INFO L93 Difference]: Finished difference Result 2101 states and 2948 transitions. [2020-12-22 08:44:51,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:44:51,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-12-22 08:44:51,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:44:51,267 INFO L225 Difference]: With dead ends: 2101 [2020-12-22 08:44:51,267 INFO L226 Difference]: Without dead ends: 1071 [2020-12-22 08:44:51,269 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 08:44:51,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2020-12-22 08:44:51,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2020-12-22 08:44:51,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2020-12-22 08:44:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1486 transitions. [2020-12-22 08:44:51,340 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1486 transitions. Word has length 76 [2020-12-22 08:44:51,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:44:51,340 INFO L481 AbstractCegarLoop]: Abstraction has 1071 states and 1486 transitions. [2020-12-22 08:44:51,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:44:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1486 transitions. [2020-12-22 08:44:51,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:44:51,348 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:44:51,348 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] [2020-12-22 08:44:51,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:44:51,348 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:44:51,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:44:51,349 INFO L82 PathProgramCache]: Analyzing trace with hash -142744767, now seen corresponding path program 1 times [2020-12-22 08:44:51,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:44:51,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785698019] [2020-12-22 08:44:51,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:44:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:44:51,630 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 08:44:51,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785698019] [2020-12-22 08:44:51,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:44:51,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:44:51,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655082919] [2020-12-22 08:44:51,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:44:51,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:44:51,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:44:51,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:44:51,642 INFO L87 Difference]: Start difference. First operand 1071 states and 1486 transitions. Second operand 9 states. [2020-12-22 08:44:52,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:44:52,908 INFO L93 Difference]: Finished difference Result 3423 states and 4926 transitions. [2020-12-22 08:44:52,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:44:52,908 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-12-22 08:44:52,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:44:52,922 INFO L225 Difference]: With dead ends: 3423 [2020-12-22 08:44:52,923 INFO L226 Difference]: Without dead ends: 2894 [2020-12-22 08:44:52,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:44:52,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2020-12-22 08:44:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 1071. [2020-12-22 08:44:53,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2020-12-22 08:44:53,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1485 transitions. [2020-12-22 08:44:53,035 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1485 transitions. Word has length 77 [2020-12-22 08:44:53,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:44:53,036 INFO L481 AbstractCegarLoop]: Abstraction has 1071 states and 1485 transitions. [2020-12-22 08:44:53,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:44:53,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1485 transitions. [2020-12-22 08:44:53,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:44:53,038 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:44:53,038 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] [2020-12-22 08:44:53,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:44:53,038 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:44:53,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:44:53,039 INFO L82 PathProgramCache]: Analyzing trace with hash -2022253705, now seen corresponding path program 1 times [2020-12-22 08:44:53,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:44:53,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031184461] [2020-12-22 08:44:53,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:44:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:44:53,239 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 08:44:53,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031184461] [2020-12-22 08:44:53,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:44:53,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:44:53,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763782798] [2020-12-22 08:44:53,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:44:53,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:44:53,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:44:53,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:44:53,242 INFO L87 Difference]: Start difference. First operand 1071 states and 1485 transitions. Second operand 9 states. [2020-12-22 08:44:54,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:44:54,372 INFO L93 Difference]: Finished difference Result 2731 states and 3909 transitions. [2020-12-22 08:44:54,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:44:54,373 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-12-22 08:44:54,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:44:54,384 INFO L225 Difference]: With dead ends: 2731 [2020-12-22 08:44:54,384 INFO L226 Difference]: Without dead ends: 2139 [2020-12-22 08:44:54,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:44:54,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2020-12-22 08:44:54,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1071. [2020-12-22 08:44:54,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2020-12-22 08:44:54,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1484 transitions. [2020-12-22 08:44:54,489 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1484 transitions. Word has length 77 [2020-12-22 08:44:54,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:44:54,490 INFO L481 AbstractCegarLoop]: Abstraction has 1071 states and 1484 transitions. [2020-12-22 08:44:54,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:44:54,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1484 transitions. [2020-12-22 08:44:54,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:44:54,491 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:44:54,492 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] [2020-12-22 08:44:54,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:44:54,492 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:44:54,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:44:54,493 INFO L82 PathProgramCache]: Analyzing trace with hash 679839246, now seen corresponding path program 1 times [2020-12-22 08:44:54,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:44:54,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109315010] [2020-12-22 08:44:54,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:44:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:44:54,680 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 08:44:54,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109315010] [2020-12-22 08:44:54,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:44:54,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:44:54,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491882829] [2020-12-22 08:44:54,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:44:54,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:44:54,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:44:54,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:44:54,682 INFO L87 Difference]: Start difference. First operand 1071 states and 1484 transitions. Second operand 8 states. [2020-12-22 08:44:55,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:44:55,360 INFO L93 Difference]: Finished difference Result 2415 states and 3428 transitions. [2020-12-22 08:44:55,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 08:44:55,360 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2020-12-22 08:44:55,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:44:55,369 INFO L225 Difference]: With dead ends: 2415 [2020-12-22 08:44:55,369 INFO L226 Difference]: Without dead ends: 1724 [2020-12-22 08:44:55,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-12-22 08:44:55,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2020-12-22 08:44:55,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 932. [2020-12-22 08:44:55,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2020-12-22 08:44:55,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1288 transitions. [2020-12-22 08:44:55,514 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1288 transitions. Word has length 77 [2020-12-22 08:44:55,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:44:55,514 INFO L481 AbstractCegarLoop]: Abstraction has 932 states and 1288 transitions. [2020-12-22 08:44:55,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:44:55,515 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1288 transitions. [2020-12-22 08:44:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:44:55,516 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:44:55,516 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] [2020-12-22 08:44:55,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:44:55,517 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:44:55,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:44:55,517 INFO L82 PathProgramCache]: Analyzing trace with hash -204100811, now seen corresponding path program 1 times [2020-12-22 08:44:55,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:44:55,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583158252] [2020-12-22 08:44:55,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:44:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:44:55,748 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 08:44:55,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583158252] [2020-12-22 08:44:55,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:44:55,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:44:55,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049527197] [2020-12-22 08:44:55,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:44:55,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:44:55,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:44:55,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:44:55,751 INFO L87 Difference]: Start difference. First operand 932 states and 1288 transitions. Second operand 11 states. [2020-12-22 08:44:59,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:44:59,697 INFO L93 Difference]: Finished difference Result 8890 states and 12969 transitions. [2020-12-22 08:44:59,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:44:59,698 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-12-22 08:44:59,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:44:59,739 INFO L225 Difference]: With dead ends: 8890 [2020-12-22 08:44:59,739 INFO L226 Difference]: Without dead ends: 8350 [2020-12-22 08:44:59,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:44:59,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8350 states. [2020-12-22 08:45:00,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8350 to 936. [2020-12-22 08:45:00,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1292 transitions. [2020-12-22 08:45:00,032 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1292 transitions. Word has length 79 [2020-12-22 08:45:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:00,032 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1292 transitions. [2020-12-22 08:45:00,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:45:00,033 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1292 transitions. [2020-12-22 08:45:00,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:45:00,034 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:00,035 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] [2020-12-22 08:45:00,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:45:00,035 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:00,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:00,036 INFO L82 PathProgramCache]: Analyzing trace with hash -612946039, now seen corresponding path program 1 times [2020-12-22 08:45:00,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:00,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896640163] [2020-12-22 08:45:00,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:00,216 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 08:45:00,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896640163] [2020-12-22 08:45:00,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:00,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:00,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720242444] [2020-12-22 08:45:00,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:00,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:00,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:00,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:00,219 INFO L87 Difference]: Start difference. First operand 936 states and 1292 transitions. Second operand 9 states. [2020-12-22 08:45:01,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:01,641 INFO L93 Difference]: Finished difference Result 3146 states and 4534 transitions. [2020-12-22 08:45:01,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:01,641 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:45:01,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:01,653 INFO L225 Difference]: With dead ends: 3146 [2020-12-22 08:45:01,654 INFO L226 Difference]: Without dead ends: 2636 [2020-12-22 08:45:01,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:45:01,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2020-12-22 08:45:01,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 936. [2020-12-22 08:45:01,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1291 transitions. [2020-12-22 08:45:01,812 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1291 transitions. Word has length 79 [2020-12-22 08:45:01,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:01,812 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1291 transitions. [2020-12-22 08:45:01,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1291 transitions. [2020-12-22 08:45:01,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:45:01,813 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:01,814 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] [2020-12-22 08:45:01,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:45:01,814 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:01,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:01,815 INFO L82 PathProgramCache]: Analyzing trace with hash -244843864, now seen corresponding path program 1 times [2020-12-22 08:45:01,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:01,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655106812] [2020-12-22 08:45:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:02,019 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 08:45:02,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655106812] [2020-12-22 08:45:02,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:02,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:45:02,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581442912] [2020-12-22 08:45:02,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:45:02,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:02,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:45:02,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:45:02,022 INFO L87 Difference]: Start difference. First operand 936 states and 1291 transitions. Second operand 11 states. [2020-12-22 08:45:06,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:06,314 INFO L93 Difference]: Finished difference Result 7538 states and 10937 transitions. [2020-12-22 08:45:06,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:45:06,315 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-12-22 08:45:06,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:06,366 INFO L225 Difference]: With dead ends: 7538 [2020-12-22 08:45:06,366 INFO L226 Difference]: Without dead ends: 7032 [2020-12-22 08:45:06,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:45:06,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7032 states. [2020-12-22 08:45:06,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7032 to 940. [2020-12-22 08:45:06,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-12-22 08:45:06,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1295 transitions. [2020-12-22 08:45:06,617 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1295 transitions. Word has length 79 [2020-12-22 08:45:06,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:06,618 INFO L481 AbstractCegarLoop]: Abstraction has 940 states and 1295 transitions. [2020-12-22 08:45:06,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:45:06,618 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1295 transitions. [2020-12-22 08:45:06,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:45:06,619 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:06,619 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] [2020-12-22 08:45:06,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:45:06,620 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:06,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:06,621 INFO L82 PathProgramCache]: Analyzing trace with hash 391973260, now seen corresponding path program 1 times [2020-12-22 08:45:06,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:06,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902606995] [2020-12-22 08:45:06,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:06,772 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 08:45:06,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902606995] [2020-12-22 08:45:06,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:06,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:06,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775252404] [2020-12-22 08:45:06,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:06,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:06,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:06,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:06,775 INFO L87 Difference]: Start difference. First operand 940 states and 1295 transitions. Second operand 9 states. [2020-12-22 08:45:08,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:08,274 INFO L93 Difference]: Finished difference Result 3141 states and 4526 transitions. [2020-12-22 08:45:08,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:08,274 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:45:08,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:08,282 INFO L225 Difference]: With dead ends: 3141 [2020-12-22 08:45:08,282 INFO L226 Difference]: Without dead ends: 2636 [2020-12-22 08:45:08,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:45:08,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2020-12-22 08:45:08,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 940. [2020-12-22 08:45:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-12-22 08:45:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1294 transitions. [2020-12-22 08:45:08,471 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1294 transitions. Word has length 79 [2020-12-22 08:45:08,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:08,471 INFO L481 AbstractCegarLoop]: Abstraction has 940 states and 1294 transitions. [2020-12-22 08:45:08,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:08,471 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1294 transitions. [2020-12-22 08:45:08,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:45:08,473 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:08,473 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] [2020-12-22 08:45:08,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:45:08,473 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:08,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:08,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1786631023, now seen corresponding path program 1 times [2020-12-22 08:45:08,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:08,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574356749] [2020-12-22 08:45:08,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:08,676 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 08:45:08,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574356749] [2020-12-22 08:45:08,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:08,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:45:08,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130345305] [2020-12-22 08:45:08,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:45:08,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:08,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:45:08,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:45:08,679 INFO L87 Difference]: Start difference. First operand 940 states and 1294 transitions. Second operand 11 states. [2020-12-22 08:45:10,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:10,796 INFO L93 Difference]: Finished difference Result 2730 states and 3890 transitions. [2020-12-22 08:45:10,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:45:10,797 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-12-22 08:45:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:10,802 INFO L225 Difference]: With dead ends: 2730 [2020-12-22 08:45:10,802 INFO L226 Difference]: Without dead ends: 2118 [2020-12-22 08:45:10,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-12-22 08:45:10,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2020-12-22 08:45:10,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 944. [2020-12-22 08:45:10,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-12-22 08:45:10,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1298 transitions. [2020-12-22 08:45:10,960 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1298 transitions. Word has length 79 [2020-12-22 08:45:10,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:10,960 INFO L481 AbstractCegarLoop]: Abstraction has 944 states and 1298 transitions. [2020-12-22 08:45:10,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:45:10,960 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1298 transitions. [2020-12-22 08:45:10,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:45:10,962 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:10,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:45:10,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:45:10,962 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:10,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:10,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1207195179, now seen corresponding path program 1 times [2020-12-22 08:45:10,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:10,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177982009] [2020-12-22 08:45:10,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:11,100 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 08:45:11,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177982009] [2020-12-22 08:45:11,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:11,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:11,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951804491] [2020-12-22 08:45:11,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:11,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:11,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:11,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:11,102 INFO L87 Difference]: Start difference. First operand 944 states and 1298 transitions. Second operand 9 states. [2020-12-22 08:45:12,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:12,743 INFO L93 Difference]: Finished difference Result 3146 states and 4529 transitions. [2020-12-22 08:45:12,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:12,744 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:45:12,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:12,748 INFO L225 Difference]: With dead ends: 3146 [2020-12-22 08:45:12,749 INFO L226 Difference]: Without dead ends: 2640 [2020-12-22 08:45:12,750 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 08:45:12,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2020-12-22 08:45:12,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 944. [2020-12-22 08:45:12,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-12-22 08:45:12,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1297 transitions. [2020-12-22 08:45:12,927 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1297 transitions. Word has length 79 [2020-12-22 08:45:12,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:12,927 INFO L481 AbstractCegarLoop]: Abstraction has 944 states and 1297 transitions. [2020-12-22 08:45:12,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:12,928 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1297 transitions. [2020-12-22 08:45:12,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:45:12,929 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:12,929 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] [2020-12-22 08:45:12,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:45:12,929 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:12,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:12,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1616040407, now seen corresponding path program 1 times [2020-12-22 08:45:12,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:12,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871362218] [2020-12-22 08:45:12,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:13,061 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 08:45:13,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871362218] [2020-12-22 08:45:13,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:13,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:13,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8475647] [2020-12-22 08:45:13,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:13,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:13,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:13,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:13,063 INFO L87 Difference]: Start difference. First operand 944 states and 1297 transitions. Second operand 9 states. [2020-12-22 08:45:14,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:14,684 INFO L93 Difference]: Finished difference Result 3200 states and 4602 transitions. [2020-12-22 08:45:14,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:14,685 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:45:14,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:14,689 INFO L225 Difference]: With dead ends: 3200 [2020-12-22 08:45:14,689 INFO L226 Difference]: Without dead ends: 2672 [2020-12-22 08:45:14,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:45:14,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2020-12-22 08:45:14,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 944. [2020-12-22 08:45:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-12-22 08:45:14,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1296 transitions. [2020-12-22 08:45:14,920 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1296 transitions. Word has length 79 [2020-12-22 08:45:14,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:14,920 INFO L481 AbstractCegarLoop]: Abstraction has 944 states and 1296 transitions. [2020-12-22 08:45:14,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:14,920 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1296 transitions. [2020-12-22 08:45:14,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:45:14,922 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:14,922 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] [2020-12-22 08:45:14,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:45:14,922 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:14,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:14,923 INFO L82 PathProgramCache]: Analyzing trace with hash 2053274851, now seen corresponding path program 1 times [2020-12-22 08:45:14,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:14,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050300307] [2020-12-22 08:45:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:15,066 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 08:45:15,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050300307] [2020-12-22 08:45:15,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:15,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:15,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670512656] [2020-12-22 08:45:15,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:15,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:15,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:15,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:15,068 INFO L87 Difference]: Start difference. First operand 944 states and 1296 transitions. Second operand 9 states. [2020-12-22 08:45:16,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:16,395 INFO L93 Difference]: Finished difference Result 2312 states and 3307 transitions. [2020-12-22 08:45:16,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:45:16,396 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:45:16,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:16,400 INFO L225 Difference]: With dead ends: 2312 [2020-12-22 08:45:16,400 INFO L226 Difference]: Without dead ends: 1700 [2020-12-22 08:45:16,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:45:16,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2020-12-22 08:45:16,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 940. [2020-12-22 08:45:16,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-12-22 08:45:16,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1291 transitions. [2020-12-22 08:45:16,567 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1291 transitions. Word has length 80 [2020-12-22 08:45:16,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:16,568 INFO L481 AbstractCegarLoop]: Abstraction has 940 states and 1291 transitions. [2020-12-22 08:45:16,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:16,568 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1291 transitions. [2020-12-22 08:45:16,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:45:16,569 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:16,569 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] [2020-12-22 08:45:16,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:45:16,570 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:16,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:16,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1975429315, now seen corresponding path program 1 times [2020-12-22 08:45:16,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:16,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785475406] [2020-12-22 08:45:16,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:16,705 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 08:45:16,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785475406] [2020-12-22 08:45:16,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:16,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:16,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64508748] [2020-12-22 08:45:16,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:16,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:16,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:16,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:16,708 INFO L87 Difference]: Start difference. First operand 940 states and 1291 transitions. Second operand 9 states. [2020-12-22 08:45:18,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:18,457 INFO L93 Difference]: Finished difference Result 3208 states and 4615 transitions. [2020-12-22 08:45:18,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:18,458 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:45:18,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:18,463 INFO L225 Difference]: With dead ends: 3208 [2020-12-22 08:45:18,463 INFO L226 Difference]: Without dead ends: 2668 [2020-12-22 08:45:18,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:45:18,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2020-12-22 08:45:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 936. [2020-12-22 08:45:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:18,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1286 transitions. [2020-12-22 08:45:18,721 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1286 transitions. Word has length 80 [2020-12-22 08:45:18,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:18,721 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1286 transitions. [2020-12-22 08:45:18,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:18,721 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1286 transitions. [2020-12-22 08:45:18,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:45:18,724 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:18,724 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] [2020-12-22 08:45:18,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:45:18,725 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:18,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:18,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1896194813, now seen corresponding path program 1 times [2020-12-22 08:45:18,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:18,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672697125] [2020-12-22 08:45:18,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:18,859 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 08:45:18,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672697125] [2020-12-22 08:45:18,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:18,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:18,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724644389] [2020-12-22 08:45:18,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:18,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:18,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:18,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:18,862 INFO L87 Difference]: Start difference. First operand 936 states and 1286 transitions. Second operand 9 states. [2020-12-22 08:45:20,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:20,679 INFO L93 Difference]: Finished difference Result 3138 states and 4517 transitions. [2020-12-22 08:45:20,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:20,680 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:45:20,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:20,685 INFO L225 Difference]: With dead ends: 3138 [2020-12-22 08:45:20,685 INFO L226 Difference]: Without dead ends: 2632 [2020-12-22 08:45:20,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:45:20,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2020-12-22 08:45:20,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 932. [2020-12-22 08:45:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2020-12-22 08:45:20,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1281 transitions. [2020-12-22 08:45:20,984 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1281 transitions. Word has length 80 [2020-12-22 08:45:20,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:20,985 INFO L481 AbstractCegarLoop]: Abstraction has 932 states and 1281 transitions. [2020-12-22 08:45:20,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:20,985 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1281 transitions. [2020-12-22 08:45:20,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:20,986 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:20,986 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] [2020-12-22 08:45:20,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:45:20,987 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:20,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:20,987 INFO L82 PathProgramCache]: Analyzing trace with hash 2135531548, now seen corresponding path program 1 times [2020-12-22 08:45:20,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:20,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948842598] [2020-12-22 08:45:20,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:21,135 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 08:45:21,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948842598] [2020-12-22 08:45:21,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:21,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:21,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811819097] [2020-12-22 08:45:21,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:21,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:21,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:21,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:21,137 INFO L87 Difference]: Start difference. First operand 932 states and 1281 transitions. Second operand 9 states. [2020-12-22 08:45:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:23,001 INFO L93 Difference]: Finished difference Result 3479 states and 5055 transitions. [2020-12-22 08:45:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:45:23,001 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:45:23,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:23,004 INFO L225 Difference]: With dead ends: 3479 [2020-12-22 08:45:23,004 INFO L226 Difference]: Without dead ends: 2980 [2020-12-22 08:45:23,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:45:23,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2020-12-22 08:45:23,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 932. [2020-12-22 08:45:23,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2020-12-22 08:45:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1280 transitions. [2020-12-22 08:45:23,234 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1280 transitions. Word has length 81 [2020-12-22 08:45:23,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:23,234 INFO L481 AbstractCegarLoop]: Abstraction has 932 states and 1280 transitions. [2020-12-22 08:45:23,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:23,235 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1280 transitions. [2020-12-22 08:45:23,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:23,236 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:23,236 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] [2020-12-22 08:45:23,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:45:23,237 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:23,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:23,237 INFO L82 PathProgramCache]: Analyzing trace with hash -247238646, now seen corresponding path program 1 times [2020-12-22 08:45:23,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:23,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544141549] [2020-12-22 08:45:23,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:23,447 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 08:45:23,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544141549] [2020-12-22 08:45:23,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:23,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:45:23,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174290129] [2020-12-22 08:45:23,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:45:23,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:23,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:45:23,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:45:23,452 INFO L87 Difference]: Start difference. First operand 932 states and 1280 transitions. Second operand 11 states. [2020-12-22 08:45:27,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:27,470 INFO L93 Difference]: Finished difference Result 6336 states and 9214 transitions. [2020-12-22 08:45:27,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:45:27,471 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2020-12-22 08:45:27,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:27,476 INFO L225 Difference]: With dead ends: 6336 [2020-12-22 08:45:27,476 INFO L226 Difference]: Without dead ends: 5825 [2020-12-22 08:45:27,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:45:27,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5825 states. [2020-12-22 08:45:27,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5825 to 936. [2020-12-22 08:45:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1284 transitions. [2020-12-22 08:45:27,793 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1284 transitions. Word has length 81 [2020-12-22 08:45:27,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:27,794 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1284 transitions. [2020-12-22 08:45:27,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:45:27,794 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1284 transitions. [2020-12-22 08:45:27,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:27,795 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:27,796 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] [2020-12-22 08:45:27,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:45:27,796 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:27,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:27,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1648828412, now seen corresponding path program 1 times [2020-12-22 08:45:27,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:27,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868215975] [2020-12-22 08:45:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:27,944 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 08:45:27,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868215975] [2020-12-22 08:45:27,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:27,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:27,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749709178] [2020-12-22 08:45:27,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:27,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:27,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:27,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:27,947 INFO L87 Difference]: Start difference. First operand 936 states and 1284 transitions. Second operand 9 states. [2020-12-22 08:45:30,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:30,107 INFO L93 Difference]: Finished difference Result 3480 states and 5055 transitions. [2020-12-22 08:45:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:45:30,107 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:45:30,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:30,110 INFO L225 Difference]: With dead ends: 3480 [2020-12-22 08:45:30,110 INFO L226 Difference]: Without dead ends: 2984 [2020-12-22 08:45:30,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:45:30,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2020-12-22 08:45:30,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 936. [2020-12-22 08:45:30,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:30,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1283 transitions. [2020-12-22 08:45:30,415 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1283 transitions. Word has length 81 [2020-12-22 08:45:30,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:30,415 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1283 transitions. [2020-12-22 08:45:30,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:30,415 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1283 transitions. [2020-12-22 08:45:30,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:30,417 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:30,417 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] [2020-12-22 08:45:30,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:45:30,417 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:30,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:30,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1380394973, now seen corresponding path program 1 times [2020-12-22 08:45:30,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:30,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271035457] [2020-12-22 08:45:30,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:30,651 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 08:45:30,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271035457] [2020-12-22 08:45:30,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:30,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:45:30,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264621828] [2020-12-22 08:45:30,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:45:30,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:30,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:45:30,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:45:30,653 INFO L87 Difference]: Start difference. First operand 936 states and 1283 transitions. Second operand 12 states. [2020-12-22 08:45:34,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:34,240 INFO L93 Difference]: Finished difference Result 3800 states and 5436 transitions. [2020-12-22 08:45:34,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:45:34,242 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2020-12-22 08:45:34,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:34,248 INFO L225 Difference]: With dead ends: 3800 [2020-12-22 08:45:34,248 INFO L226 Difference]: Without dead ends: 3301 [2020-12-22 08:45:34,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:45:34,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3301 states. [2020-12-22 08:45:34,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3301 to 936. [2020-12-22 08:45:34,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1282 transitions. [2020-12-22 08:45:34,612 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1282 transitions. Word has length 81 [2020-12-22 08:45:34,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:34,612 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1282 transitions. [2020-12-22 08:45:34,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:45:34,612 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1282 transitions. [2020-12-22 08:45:34,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:34,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:34,614 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] [2020-12-22 08:45:34,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:45:34,614 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:34,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:34,615 INFO L82 PathProgramCache]: Analyzing trace with hash -90069907, now seen corresponding path program 1 times [2020-12-22 08:45:34,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:34,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304439637] [2020-12-22 08:45:34,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:34,765 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 08:45:34,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304439637] [2020-12-22 08:45:34,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:34,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:34,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777982897] [2020-12-22 08:45:34,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:34,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:34,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:34,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:34,767 INFO L87 Difference]: Start difference. First operand 936 states and 1282 transitions. Second operand 9 states. [2020-12-22 08:45:36,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:36,823 INFO L93 Difference]: Finished difference Result 3480 states and 5053 transitions. [2020-12-22 08:45:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:45:36,823 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:45:36,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:36,826 INFO L225 Difference]: With dead ends: 3480 [2020-12-22 08:45:36,826 INFO L226 Difference]: Without dead ends: 2984 [2020-12-22 08:45:36,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:45:36,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2020-12-22 08:45:37,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 936. [2020-12-22 08:45:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:37,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1281 transitions. [2020-12-22 08:45:37,069 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1281 transitions. Word has length 81 [2020-12-22 08:45:37,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:37,070 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1281 transitions. [2020-12-22 08:45:37,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:37,070 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1281 transitions. [2020-12-22 08:45:37,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:37,071 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:37,071 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] [2020-12-22 08:45:37,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:45:37,071 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:37,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:37,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1355696644, now seen corresponding path program 1 times [2020-12-22 08:45:37,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:37,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512478468] [2020-12-22 08:45:37,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:37,345 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 08:45:37,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512478468] [2020-12-22 08:45:37,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:37,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:45:37,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356571907] [2020-12-22 08:45:37,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:45:37,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:37,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:45:37,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:45:37,348 INFO L87 Difference]: Start difference. First operand 936 states and 1281 transitions. Second operand 12 states. [2020-12-22 08:45:41,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:41,128 INFO L93 Difference]: Finished difference Result 3306 states and 4691 transitions. [2020-12-22 08:45:41,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:45:41,128 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2020-12-22 08:45:41,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:41,132 INFO L225 Difference]: With dead ends: 3306 [2020-12-22 08:45:41,132 INFO L226 Difference]: Without dead ends: 3301 [2020-12-22 08:45:41,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:45:41,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3301 states. [2020-12-22 08:45:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3301 to 936. [2020-12-22 08:45:41,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1280 transitions. [2020-12-22 08:45:41,432 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1280 transitions. Word has length 81 [2020-12-22 08:45:41,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:41,432 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1280 transitions. [2020-12-22 08:45:41,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:45:41,432 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1280 transitions. [2020-12-22 08:45:41,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:41,433 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:41,433 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] [2020-12-22 08:45:41,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:45:41,434 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:41,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:41,434 INFO L82 PathProgramCache]: Analyzing trace with hash 558624169, now seen corresponding path program 1 times [2020-12-22 08:45:41,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:41,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841087813] [2020-12-22 08:45:41,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:41,652 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 08:45:41,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841087813] [2020-12-22 08:45:41,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:41,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:45:41,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905731457] [2020-12-22 08:45:41,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:45:41,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:41,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:45:41,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:45:41,653 INFO L87 Difference]: Start difference. First operand 936 states and 1280 transitions. Second operand 12 states. [2020-12-22 08:45:45,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:45,366 INFO L93 Difference]: Finished difference Result 3794 states and 5427 transitions. [2020-12-22 08:45:45,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:45:45,366 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2020-12-22 08:45:45,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:45,369 INFO L225 Difference]: With dead ends: 3794 [2020-12-22 08:45:45,370 INFO L226 Difference]: Without dead ends: 3298 [2020-12-22 08:45:45,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:45:45,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3298 states. [2020-12-22 08:45:45,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3298 to 936. [2020-12-22 08:45:45,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:45,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1279 transitions. [2020-12-22 08:45:45,613 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1279 transitions. Word has length 81 [2020-12-22 08:45:45,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:45,613 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1279 transitions. [2020-12-22 08:45:45,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:45:45,613 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1279 transitions. [2020-12-22 08:45:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:45,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:45,615 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] [2020-12-22 08:45:45,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:45:45,615 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:45,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:45,615 INFO L82 PathProgramCache]: Analyzing trace with hash -237124242, now seen corresponding path program 1 times [2020-12-22 08:45:45,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:45,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95952211] [2020-12-22 08:45:45,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:45,754 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 08:45:45,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95952211] [2020-12-22 08:45:45,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:45,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:45,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041078004] [2020-12-22 08:45:45,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:45,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:45,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:45,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:45,756 INFO L87 Difference]: Start difference. First operand 936 states and 1279 transitions. Second operand 9 states. [2020-12-22 08:45:47,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:47,962 INFO L93 Difference]: Finished difference Result 3478 states and 5048 transitions. [2020-12-22 08:45:47,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:45:47,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:45:47,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:47,965 INFO L225 Difference]: With dead ends: 3478 [2020-12-22 08:45:47,965 INFO L226 Difference]: Without dead ends: 2984 [2020-12-22 08:45:47,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:45:47,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2020-12-22 08:45:48,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 936. [2020-12-22 08:45:48,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:48,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1278 transitions. [2020-12-22 08:45:48,198 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1278 transitions. Word has length 81 [2020-12-22 08:45:48,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:48,199 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1278 transitions. [2020-12-22 08:45:48,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:48,199 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1278 transitions. [2020-12-22 08:45:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:48,200 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:48,200 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] [2020-12-22 08:45:48,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:45:48,200 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:48,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:48,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1610096682, now seen corresponding path program 1 times [2020-12-22 08:45:48,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:48,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805162646] [2020-12-22 08:45:48,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:48,334 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 08:45:48,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805162646] [2020-12-22 08:45:48,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:48,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:48,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142142176] [2020-12-22 08:45:48,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:48,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:48,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:48,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:48,336 INFO L87 Difference]: Start difference. First operand 936 states and 1278 transitions. Second operand 9 states. [2020-12-22 08:45:50,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:50,303 INFO L93 Difference]: Finished difference Result 3143 states and 4510 transitions. [2020-12-22 08:45:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:45:50,303 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:45:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:50,306 INFO L225 Difference]: With dead ends: 3143 [2020-12-22 08:45:50,306 INFO L226 Difference]: Without dead ends: 2632 [2020-12-22 08:45:50,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:45:50,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2020-12-22 08:45:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 936. [2020-12-22 08:45:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:50,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1277 transitions. [2020-12-22 08:45:50,547 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1277 transitions. Word has length 81 [2020-12-22 08:45:50,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:50,547 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1277 transitions. [2020-12-22 08:45:50,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:50,547 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1277 transitions. [2020-12-22 08:45:50,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:50,548 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:50,549 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] [2020-12-22 08:45:50,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:45:50,549 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:50,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:50,549 INFO L82 PathProgramCache]: Analyzing trace with hash -302100420, now seen corresponding path program 1 times [2020-12-22 08:45:50,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:50,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127840695] [2020-12-22 08:45:50,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:50,684 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 08:45:50,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127840695] [2020-12-22 08:45:50,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:50,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:50,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775448371] [2020-12-22 08:45:50,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:50,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:50,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:50,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:50,686 INFO L87 Difference]: Start difference. First operand 936 states and 1277 transitions. Second operand 9 states. [2020-12-22 08:45:52,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:52,870 INFO L93 Difference]: Finished difference Result 3483 states and 5051 transitions. [2020-12-22 08:45:52,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:45:52,870 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:45:52,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:52,873 INFO L225 Difference]: With dead ends: 3483 [2020-12-22 08:45:52,873 INFO L226 Difference]: Without dead ends: 2984 [2020-12-22 08:45:52,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:45:52,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2020-12-22 08:45:53,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 936. [2020-12-22 08:45:53,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:45:53,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1276 transitions. [2020-12-22 08:45:53,126 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1276 transitions. Word has length 81 [2020-12-22 08:45:53,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:53,127 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1276 transitions. [2020-12-22 08:45:53,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:45:53,127 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1276 transitions. [2020-12-22 08:45:53,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:53,128 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:53,128 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] [2020-12-22 08:45:53,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:45:53,128 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:53,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:53,129 INFO L82 PathProgramCache]: Analyzing trace with hash -286808248, now seen corresponding path program 1 times [2020-12-22 08:45:53,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:53,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461756738] [2020-12-22 08:45:53,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:53,322 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 08:45:53,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461756738] [2020-12-22 08:45:53,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:53,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:45:53,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701321367] [2020-12-22 08:45:53,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:45:53,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:53,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:45:53,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:45:53,325 INFO L87 Difference]: Start difference. First operand 936 states and 1276 transitions. Second operand 11 states. [2020-12-22 08:45:58,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:45:58,630 INFO L93 Difference]: Finished difference Result 7100 states and 10318 transitions. [2020-12-22 08:45:58,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:45:58,630 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2020-12-22 08:45:58,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:45:58,636 INFO L225 Difference]: With dead ends: 7100 [2020-12-22 08:45:58,636 INFO L226 Difference]: Without dead ends: 6539 [2020-12-22 08:45:58,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:45:58,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6539 states. [2020-12-22 08:45:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6539 to 940. [2020-12-22 08:45:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-12-22 08:45:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1280 transitions. [2020-12-22 08:45:58,950 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1280 transitions. Word has length 81 [2020-12-22 08:45:58,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:45:58,950 INFO L481 AbstractCegarLoop]: Abstraction has 940 states and 1280 transitions. [2020-12-22 08:45:58,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:45:58,950 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1280 transitions. [2020-12-22 08:45:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:45:58,952 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:45:58,952 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] [2020-12-22 08:45:58,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 08:45:58,952 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:45:58,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:45:58,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1055423202, now seen corresponding path program 1 times [2020-12-22 08:45:58,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:45:58,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397946926] [2020-12-22 08:45:58,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:45:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:45:59,092 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 08:45:59,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397946926] [2020-12-22 08:45:59,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:45:59,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:45:59,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322954696] [2020-12-22 08:45:59,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:45:59,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:45:59,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:45:59,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:45:59,095 INFO L87 Difference]: Start difference. First operand 940 states and 1280 transitions. Second operand 9 states. [2020-12-22 08:46:01,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:01,523 INFO L93 Difference]: Finished difference Result 2993 states and 4312 transitions. [2020-12-22 08:46:01,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:01,524 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:46:01,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:01,527 INFO L225 Difference]: With dead ends: 2993 [2020-12-22 08:46:01,527 INFO L226 Difference]: Without dead ends: 2988 [2020-12-22 08:46:01,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:01,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2020-12-22 08:46:01,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 940. [2020-12-22 08:46:01,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-12-22 08:46:01,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1279 transitions. [2020-12-22 08:46:01,795 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1279 transitions. Word has length 81 [2020-12-22 08:46:01,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:01,795 INFO L481 AbstractCegarLoop]: Abstraction has 940 states and 1279 transitions. [2020-12-22 08:46:01,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:01,795 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1279 transitions. [2020-12-22 08:46:01,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:46:01,797 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:01,797 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] [2020-12-22 08:46:01,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 08:46:01,797 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:01,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:01,798 INFO L82 PathProgramCache]: Analyzing trace with hash 856773900, now seen corresponding path program 1 times [2020-12-22 08:46:01,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:01,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213913721] [2020-12-22 08:46:01,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:01,976 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 08:46:01,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213913721] [2020-12-22 08:46:01,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:01,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:46:01,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352891429] [2020-12-22 08:46:01,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:46:01,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:01,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:46:01,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:46:01,978 INFO L87 Difference]: Start difference. First operand 940 states and 1279 transitions. Second operand 11 states. [2020-12-22 08:46:08,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:08,428 INFO L93 Difference]: Finished difference Result 7054 states and 10182 transitions. [2020-12-22 08:46:08,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:46:08,429 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2020-12-22 08:46:08,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:08,436 INFO L225 Difference]: With dead ends: 7054 [2020-12-22 08:46:08,436 INFO L226 Difference]: Without dead ends: 7037 [2020-12-22 08:46:08,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:46:08,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7037 states. [2020-12-22 08:46:08,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7037 to 944. [2020-12-22 08:46:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-12-22 08:46:08,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1283 transitions. [2020-12-22 08:46:08,776 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1283 transitions. Word has length 81 [2020-12-22 08:46:08,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:08,776 INFO L481 AbstractCegarLoop]: Abstraction has 944 states and 1283 transitions. [2020-12-22 08:46:08,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:46:08,776 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1283 transitions. [2020-12-22 08:46:08,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:46:08,777 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:08,777 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] [2020-12-22 08:46:08,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 08:46:08,778 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:08,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:08,778 INFO L82 PathProgramCache]: Analyzing trace with hash -544552721, now seen corresponding path program 1 times [2020-12-22 08:46:08,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:08,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781802910] [2020-12-22 08:46:08,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:08,937 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 08:46:08,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781802910] [2020-12-22 08:46:08,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:08,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:08,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474563153] [2020-12-22 08:46:08,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:08,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:08,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:08,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:08,940 INFO L87 Difference]: Start difference. First operand 944 states and 1283 transitions. Second operand 9 states. [2020-12-22 08:46:11,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:11,692 INFO L93 Difference]: Finished difference Result 3488 states and 5054 transitions. [2020-12-22 08:46:11,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:11,693 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:46:11,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:11,695 INFO L225 Difference]: With dead ends: 3488 [2020-12-22 08:46:11,695 INFO L226 Difference]: Without dead ends: 2992 [2020-12-22 08:46:11,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:11,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2020-12-22 08:46:12,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 944. [2020-12-22 08:46:12,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-12-22 08:46:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1282 transitions. [2020-12-22 08:46:12,008 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1282 transitions. Word has length 81 [2020-12-22 08:46:12,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:12,008 INFO L481 AbstractCegarLoop]: Abstraction has 944 states and 1282 transitions. [2020-12-22 08:46:12,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:12,008 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1282 transitions. [2020-12-22 08:46:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:46:12,009 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:12,009 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] [2020-12-22 08:46:12,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 08:46:12,010 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:12,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:12,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1810559777, now seen corresponding path program 1 times [2020-12-22 08:46:12,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:12,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025898856] [2020-12-22 08:46:12,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:12,225 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 08:46:12,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025898856] [2020-12-22 08:46:12,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:12,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:46:12,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101223686] [2020-12-22 08:46:12,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:46:12,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:12,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:46:12,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:46:12,228 INFO L87 Difference]: Start difference. First operand 944 states and 1282 transitions. Second operand 12 states. [2020-12-22 08:46:16,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:16,654 INFO L93 Difference]: Finished difference Result 3314 states and 4692 transitions. [2020-12-22 08:46:16,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:46:16,654 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2020-12-22 08:46:16,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:16,657 INFO L225 Difference]: With dead ends: 3314 [2020-12-22 08:46:16,657 INFO L226 Difference]: Without dead ends: 3309 [2020-12-22 08:46:16,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:46:16,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3309 states. [2020-12-22 08:46:16,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3309 to 944. [2020-12-22 08:46:16,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-12-22 08:46:16,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1281 transitions. [2020-12-22 08:46:16,998 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1281 transitions. Word has length 81 [2020-12-22 08:46:16,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:16,998 INFO L481 AbstractCegarLoop]: Abstraction has 944 states and 1281 transitions. [2020-12-22 08:46:16,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:46:16,998 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1281 transitions. [2020-12-22 08:46:16,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:16,999 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:16,999 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] [2020-12-22 08:46:16,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 08:46:16,999 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:17,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:17,000 INFO L82 PathProgramCache]: Analyzing trace with hash -423596437, now seen corresponding path program 1 times [2020-12-22 08:46:17,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:17,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326884334] [2020-12-22 08:46:17,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:17,138 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 08:46:17,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326884334] [2020-12-22 08:46:17,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:17,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:17,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116312229] [2020-12-22 08:46:17,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:17,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:17,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:17,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:17,141 INFO L87 Difference]: Start difference. First operand 944 states and 1281 transitions. Second operand 9 states. [2020-12-22 08:46:19,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:19,823 INFO L93 Difference]: Finished difference Result 3491 states and 5055 transitions. [2020-12-22 08:46:19,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:19,824 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:19,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:19,827 INFO L225 Difference]: With dead ends: 3491 [2020-12-22 08:46:19,832 INFO L226 Difference]: Without dead ends: 2992 [2020-12-22 08:46:19,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:19,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2020-12-22 08:46:20,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 944. [2020-12-22 08:46:20,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-12-22 08:46:20,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1280 transitions. [2020-12-22 08:46:20,140 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1280 transitions. Word has length 82 [2020-12-22 08:46:20,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:20,140 INFO L481 AbstractCegarLoop]: Abstraction has 944 states and 1280 transitions. [2020-12-22 08:46:20,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:20,140 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1280 transitions. [2020-12-22 08:46:20,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:20,141 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:20,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:46:20,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 08:46:20,141 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:20,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:20,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1323094470, now seen corresponding path program 1 times [2020-12-22 08:46:20,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:20,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654278843] [2020-12-22 08:46:20,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:20,265 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 08:46:20,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654278843] [2020-12-22 08:46:20,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:20,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:20,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425764971] [2020-12-22 08:46:20,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:20,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:20,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:20,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:20,285 INFO L87 Difference]: Start difference. First operand 944 states and 1280 transitions. Second operand 9 states. [2020-12-22 08:46:22,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:22,689 INFO L93 Difference]: Finished difference Result 3147 states and 4506 transitions. [2020-12-22 08:46:22,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:22,690 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:22,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:22,693 INFO L225 Difference]: With dead ends: 3147 [2020-12-22 08:46:22,693 INFO L226 Difference]: Without dead ends: 2636 [2020-12-22 08:46:22,694 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 08:46:22,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2020-12-22 08:46:22,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 940. [2020-12-22 08:46:22,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-12-22 08:46:23,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1275 transitions. [2020-12-22 08:46:23,000 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1275 transitions. Word has length 82 [2020-12-22 08:46:23,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:23,000 INFO L481 AbstractCegarLoop]: Abstraction has 940 states and 1275 transitions. [2020-12-22 08:46:23,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:23,000 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1275 transitions. [2020-12-22 08:46:23,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:23,001 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:23,001 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] [2020-12-22 08:46:23,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 08:46:23,002 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:23,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:23,002 INFO L82 PathProgramCache]: Analyzing trace with hash 656909474, now seen corresponding path program 1 times [2020-12-22 08:46:23,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:23,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283648340] [2020-12-22 08:46:23,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:23,136 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 08:46:23,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283648340] [2020-12-22 08:46:23,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:23,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:23,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778352761] [2020-12-22 08:46:23,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:23,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:23,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:23,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:23,138 INFO L87 Difference]: Start difference. First operand 940 states and 1275 transitions. Second operand 9 states. [2020-12-22 08:46:26,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:26,064 INFO L93 Difference]: Finished difference Result 2993 states and 4307 transitions. [2020-12-22 08:46:26,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:26,065 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:26,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:26,067 INFO L225 Difference]: With dead ends: 2993 [2020-12-22 08:46:26,067 INFO L226 Difference]: Without dead ends: 2988 [2020-12-22 08:46:26,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:26,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2020-12-22 08:46:26,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 940. [2020-12-22 08:46:26,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-12-22 08:46:26,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1274 transitions. [2020-12-22 08:46:26,422 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1274 transitions. Word has length 82 [2020-12-22 08:46:26,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:26,422 INFO L481 AbstractCegarLoop]: Abstraction has 940 states and 1274 transitions. [2020-12-22 08:46:26,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:26,422 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1274 transitions. [2020-12-22 08:46:26,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:26,423 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:26,423 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] [2020-12-22 08:46:26,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 08:46:26,423 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:26,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:26,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1358540439, now seen corresponding path program 1 times [2020-12-22 08:46:26,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:26,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103219891] [2020-12-22 08:46:26,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:26,582 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 08:46:26,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103219891] [2020-12-22 08:46:26,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:26,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:26,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617823646] [2020-12-22 08:46:26,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:26,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:26,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:26,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:26,587 INFO L87 Difference]: Start difference. First operand 940 states and 1274 transitions. Second operand 9 states. [2020-12-22 08:46:29,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:29,493 INFO L93 Difference]: Finished difference Result 3484 states and 5045 transitions. [2020-12-22 08:46:29,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:29,494 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:29,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:29,497 INFO L225 Difference]: With dead ends: 3484 [2020-12-22 08:46:29,497 INFO L226 Difference]: Without dead ends: 2988 [2020-12-22 08:46:29,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:29,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2020-12-22 08:46:29,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 940. [2020-12-22 08:46:29,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-12-22 08:46:29,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1273 transitions. [2020-12-22 08:46:29,833 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1273 transitions. Word has length 82 [2020-12-22 08:46:29,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:29,834 INFO L481 AbstractCegarLoop]: Abstraction has 940 states and 1273 transitions. [2020-12-22 08:46:29,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:29,834 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1273 transitions. [2020-12-22 08:46:29,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:29,834 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:29,834 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] [2020-12-22 08:46:29,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 08:46:29,835 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:29,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:29,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1796987520, now seen corresponding path program 1 times [2020-12-22 08:46:29,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:29,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115131919] [2020-12-22 08:46:29,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:29,965 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 08:46:29,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115131919] [2020-12-22 08:46:29,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:29,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:29,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983076858] [2020-12-22 08:46:29,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:29,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:29,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:29,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:29,969 INFO L87 Difference]: Start difference. First operand 940 states and 1273 transitions. Second operand 9 states. [2020-12-22 08:46:32,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:32,542 INFO L93 Difference]: Finished difference Result 3229 states and 4607 transitions. [2020-12-22 08:46:32,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:32,543 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:32,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:32,546 INFO L225 Difference]: With dead ends: 3229 [2020-12-22 08:46:32,546 INFO L226 Difference]: Without dead ends: 2668 [2020-12-22 08:46:32,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:46:32,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2020-12-22 08:46:32,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 936. [2020-12-22 08:46:32,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:46:32,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1268 transitions. [2020-12-22 08:46:32,891 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1268 transitions. Word has length 82 [2020-12-22 08:46:32,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:32,891 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1268 transitions. [2020-12-22 08:46:32,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:32,891 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1268 transitions. [2020-12-22 08:46:32,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:32,892 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:32,892 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] [2020-12-22 08:46:32,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-22 08:46:32,892 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:32,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:32,893 INFO L82 PathProgramCache]: Analyzing trace with hash -558946144, now seen corresponding path program 1 times [2020-12-22 08:46:32,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:32,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924553780] [2020-12-22 08:46:32,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:33,025 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 08:46:33,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924553780] [2020-12-22 08:46:33,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:33,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:33,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411134518] [2020-12-22 08:46:33,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:33,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:33,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:33,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:33,026 INFO L87 Difference]: Start difference. First operand 936 states and 1268 transitions. Second operand 9 states. [2020-12-22 08:46:36,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:36,109 INFO L93 Difference]: Finished difference Result 2989 states and 4300 transitions. [2020-12-22 08:46:36,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:46:36,109 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:36,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:36,112 INFO L225 Difference]: With dead ends: 2989 [2020-12-22 08:46:36,112 INFO L226 Difference]: Without dead ends: 2984 [2020-12-22 08:46:36,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:46:36,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2020-12-22 08:46:36,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 936. [2020-12-22 08:46:36,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 936 states. [2020-12-22 08:46:36,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1267 transitions. [2020-12-22 08:46:36,437 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1267 transitions. Word has length 82 [2020-12-22 08:46:36,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:36,437 INFO L481 AbstractCegarLoop]: Abstraction has 936 states and 1267 transitions. [2020-12-22 08:46:36,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:36,438 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1267 transitions. [2020-12-22 08:46:36,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:46:36,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:36,438 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] [2020-12-22 08:46:36,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-22 08:46:36,440 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:36,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:36,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1458444177, now seen corresponding path program 1 times [2020-12-22 08:46:36,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:36,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132135312] [2020-12-22 08:46:36,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:36,561 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 08:46:36,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132135312] [2020-12-22 08:46:36,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:36,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:46:36,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109131787] [2020-12-22 08:46:36,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:46:36,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:36,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:46:36,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:46:36,563 INFO L87 Difference]: Start difference. First operand 936 states and 1267 transitions. Second operand 9 states. [2020-12-22 08:46:39,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:39,298 INFO L93 Difference]: Finished difference Result 2649 states and 3754 transitions. [2020-12-22 08:46:39,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:46:39,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-12-22 08:46:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:39,301 INFO L225 Difference]: With dead ends: 2649 [2020-12-22 08:46:39,301 INFO L226 Difference]: Without dead ends: 2632 [2020-12-22 08:46:39,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:46:39,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2020-12-22 08:46:39,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 932. [2020-12-22 08:46:39,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2020-12-22 08:46:39,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1262 transitions. [2020-12-22 08:46:39,647 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1262 transitions. Word has length 82 [2020-12-22 08:46:39,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:39,647 INFO L481 AbstractCegarLoop]: Abstraction has 932 states and 1262 transitions. [2020-12-22 08:46:39,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:46:39,648 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1262 transitions. [2020-12-22 08:46:39,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:46:39,648 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:39,648 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] [2020-12-22 08:46:39,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-12-22 08:46:39,649 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:39,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:39,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1687929497, now seen corresponding path program 1 times [2020-12-22 08:46:39,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:39,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414063886] [2020-12-22 08:46:39,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:41,160 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 08:46:41,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414063886] [2020-12-22 08:46:41,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:41,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:46:41,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947170750] [2020-12-22 08:46:41,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:46:41,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:41,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:46:41,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:46:41,162 INFO L87 Difference]: Start difference. First operand 932 states and 1262 transitions. Second operand 29 states. [2020-12-22 08:46:41,709 WARN L197 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 119 [2020-12-22 08:46:42,207 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-12-22 08:46:42,396 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2020-12-22 08:46:42,625 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-12-22 08:46:42,867 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-12-22 08:46:43,108 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-12-22 08:46:43,582 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-12-22 08:46:43,932 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2020-12-22 08:46:44,339 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2020-12-22 08:46:44,808 WARN L197 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2020-12-22 08:46:45,135 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2020-12-22 08:46:45,447 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2020-12-22 08:46:45,755 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2020-12-22 08:46:46,307 WARN L197 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-12-22 08:46:46,606 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2020-12-22 08:46:48,125 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-12-22 08:46:49,367 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2020-12-22 08:46:50,576 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2020-12-22 08:46:50,846 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-12-22 08:46:56,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:46:56,153 INFO L93 Difference]: Finished difference Result 3753 states and 5358 transitions. [2020-12-22 08:46:56,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-22 08:46:56,154 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 83 [2020-12-22 08:46:56,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:46:56,158 INFO L225 Difference]: With dead ends: 3753 [2020-12-22 08:46:56,158 INFO L226 Difference]: Without dead ends: 3255 [2020-12-22 08:46:56,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=590, Invalid=2602, Unknown=0, NotChecked=0, Total=3192 [2020-12-22 08:46:56,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2020-12-22 08:46:56,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 948. [2020-12-22 08:46:56,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 948 states. [2020-12-22 08:46:56,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1282 transitions. [2020-12-22 08:46:56,565 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1282 transitions. Word has length 83 [2020-12-22 08:46:56,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:46:56,565 INFO L481 AbstractCegarLoop]: Abstraction has 948 states and 1282 transitions. [2020-12-22 08:46:56,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-22 08:46:56,565 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1282 transitions. [2020-12-22 08:46:56,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:46:56,566 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:46:56,566 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] [2020-12-22 08:46:56,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-22 08:46:56,567 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:46:56,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:46:56,567 INFO L82 PathProgramCache]: Analyzing trace with hash -92587651, now seen corresponding path program 1 times [2020-12-22 08:46:56,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:46:56,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029891480] [2020-12-22 08:46:56,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:46:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:46:58,225 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 08:46:58,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029891480] [2020-12-22 08:46:58,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:46:58,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:46:58,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582831704] [2020-12-22 08:46:58,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:46:58,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:46:58,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:46:58,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=721, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:46:58,227 INFO L87 Difference]: Start difference. First operand 948 states and 1282 transitions. Second operand 29 states. [2020-12-22 08:46:58,774 WARN L197 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 128 [2020-12-22 08:46:59,321 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2020-12-22 08:46:59,501 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2020-12-22 08:46:59,695 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2020-12-22 08:46:59,930 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2020-12-22 08:47:00,171 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-12-22 08:47:00,645 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2020-12-22 08:47:01,006 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2020-12-22 08:47:01,430 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2020-12-22 08:47:01,919 WARN L197 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 106 [2020-12-22 08:47:02,253 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-12-22 08:47:02,570 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-12-22 08:47:02,890 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-12-22 08:47:03,449 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2020-12-22 08:47:03,739 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2020-12-22 08:47:05,360 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-12-22 08:47:12,615 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-12-22 08:47:13,708 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-12-22 08:47:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:18,608 INFO L93 Difference]: Finished difference Result 6212 states and 9056 transitions. [2020-12-22 08:47:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-12-22 08:47:18,610 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 83 [2020-12-22 08:47:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:18,615 INFO L225 Difference]: With dead ends: 6212 [2020-12-22 08:47:18,615 INFO L226 Difference]: Without dead ends: 5711 [2020-12-22 08:47:18,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=599, Invalid=2941, Unknown=0, NotChecked=0, Total=3540 [2020-12-22 08:47:18,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5711 states. [2020-12-22 08:47:19,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5711 to 953. [2020-12-22 08:47:19,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2020-12-22 08:47:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1288 transitions. [2020-12-22 08:47:19,067 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1288 transitions. Word has length 83 [2020-12-22 08:47:19,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:19,067 INFO L481 AbstractCegarLoop]: Abstraction has 953 states and 1288 transitions. [2020-12-22 08:47:19,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-22 08:47:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1288 transitions. [2020-12-22 08:47:19,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:47:19,068 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:19,068 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] [2020-12-22 08:47:19,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-12-22 08:47:19,069 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:47:19,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:19,069 INFO L82 PathProgramCache]: Analyzing trace with hash -539780137, now seen corresponding path program 1 times [2020-12-22 08:47:19,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:19,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592296303] [2020-12-22 08:47:19,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:20,838 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 08:47:20,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592296303] [2020-12-22 08:47:20,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:20,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2020-12-22 08:47:20,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972690644] [2020-12-22 08:47:20,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-22 08:47:20,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:20,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-22 08:47:20,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:47:20,842 INFO L87 Difference]: Start difference. First operand 953 states and 1288 transitions. Second operand 30 states. [2020-12-22 08:47:21,397 WARN L197 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 121 [2020-12-22 08:47:21,904 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-12-22 08:47:22,108 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-22 08:47:22,320 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-22 08:47:22,538 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-22 08:47:22,808 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-22 08:47:23,045 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-22 08:47:23,535 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-12-22 08:47:23,906 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-12-22 08:47:24,333 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2020-12-22 08:47:24,802 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 95 [2020-12-22 08:47:25,141 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-12-22 08:47:25,467 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-12-22 08:47:25,790 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-12-22 08:47:26,376 WARN L197 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2020-12-22 08:47:26,676 WARN L197 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-12-22 08:47:27,219 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:47:27,514 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-22 08:47:28,672 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-22 08:47:36,287 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-22 08:47:37,471 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-12-22 08:47:40,100 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-12-22 08:47:42,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:42,663 INFO L93 Difference]: Finished difference Result 6202 states and 9044 transitions. [2020-12-22 08:47:42,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-12-22 08:47:42,665 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 83 [2020-12-22 08:47:42,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:42,671 INFO L225 Difference]: With dead ends: 6202 [2020-12-22 08:47:42,671 INFO L226 Difference]: Without dead ends: 5705 [2020-12-22 08:47:42,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=648, Invalid=3258, Unknown=0, NotChecked=0, Total=3906 [2020-12-22 08:47:42,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5705 states. [2020-12-22 08:47:43,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5705 to 962. [2020-12-22 08:47:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 962 states. [2020-12-22 08:47:43,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1300 transitions. [2020-12-22 08:47:43,157 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1300 transitions. Word has length 83 [2020-12-22 08:47:43,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:43,157 INFO L481 AbstractCegarLoop]: Abstraction has 962 states and 1300 transitions. [2020-12-22 08:47:43,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-22 08:47:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1300 transitions. [2020-12-22 08:47:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:47:43,158 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:43,159 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] [2020-12-22 08:47:43,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-12-22 08:47:43,159 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:47:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:43,159 INFO L82 PathProgramCache]: Analyzing trace with hash 70638878, now seen corresponding path program 1 times [2020-12-22 08:47:43,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:43,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869471408] [2020-12-22 08:47:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:45,040 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 08:47:45,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869471408] [2020-12-22 08:47:45,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:45,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:47:45,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488847283] [2020-12-22 08:47:45,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:47:45,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:45,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:47:45,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:47:45,042 INFO L87 Difference]: Start difference. First operand 962 states and 1300 transitions. Second operand 29 states. [2020-12-22 08:47:45,740 WARN L197 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 113 [2020-12-22 08:47:46,290 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2020-12-22 08:47:46,505 WARN L197 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-22 08:47:46,728 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-12-22 08:47:46,969 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-22 08:47:47,260 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-12-22 08:47:47,565 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-12-22 08:47:48,169 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-12-22 08:47:48,583 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-12-22 08:47:49,067 WARN L197 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2020-12-22 08:47:49,633 WARN L197 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2020-12-22 08:47:50,025 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-12-22 08:47:50,427 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2020-12-22 08:47:50,796 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-12-22 08:47:51,464 WARN L197 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2020-12-22 08:47:51,819 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-12-22 08:47:52,072 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:47:52,447 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:47:52,782 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-12-22 08:47:53,044 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-12-22 08:47:53,393 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-12-22 08:47:53,929 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-22 08:47:55,495 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-22 08:48:05,681 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-22 08:48:10,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:10,492 INFO L93 Difference]: Finished difference Result 6291 states and 9144 transitions. [2020-12-22 08:48:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-12-22 08:48:10,494 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 83 [2020-12-22 08:48:10,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:10,499 INFO L225 Difference]: With dead ends: 6291 [2020-12-22 08:48:10,499 INFO L226 Difference]: Without dead ends: 5790 [2020-12-22 08:48:10,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=633, Invalid=2907, Unknown=0, NotChecked=0, Total=3540 [2020-12-22 08:48:10,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5790 states. [2020-12-22 08:48:10,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5790 to 968. [2020-12-22 08:48:10,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 968 states. [2020-12-22 08:48:10,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1306 transitions. [2020-12-22 08:48:10,973 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1306 transitions. Word has length 83 [2020-12-22 08:48:10,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:10,973 INFO L481 AbstractCegarLoop]: Abstraction has 968 states and 1306 transitions. [2020-12-22 08:48:10,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-22 08:48:10,974 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1306 transitions. [2020-12-22 08:48:10,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:48:10,974 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:10,974 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] [2020-12-22 08:48:10,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-12-22 08:48:10,975 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_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 08:48:10,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:10,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1403952320, now seen corresponding path program 1 times [2020-12-22 08:48:10,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:10,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307821250] [2020-12-22 08:48:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:13,570 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 08:48:13,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307821250] [2020-12-22 08:48:13,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:13,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2020-12-22 08:48:13,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720642931] [2020-12-22 08:48:13,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-22 08:48:13,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:13,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-22 08:48:13,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=783, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:48:13,572 INFO L87 Difference]: Start difference. First operand 968 states and 1306 transitions. Second operand 30 states. [2020-12-22 08:48:14,638 WARN L197 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 146 [2020-12-22 08:48:14,871 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-22 08:48:15,059 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2020-12-22 08:48:15,259 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2020-12-22 08:48:15,514 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-12-22 08:48:15,816 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2020-12-22 08:48:16,190 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2020-12-22 08:48:16,541 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-12-22 08:48:16,899 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-12-22 08:48:17,308 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2020-12-22 08:48:17,725 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2020-12-22 08:48:18,562 WARN L197 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2020-12-22 08:48:19,165 WARN L197 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 88 [2020-12-22 08:48:19,920 WARN L197 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 109 [2020-12-22 08:48:20,817 WARN L197 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2020-12-22 08:48:21,413 WARN L197 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-12-22 08:48:21,987 WARN L197 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-12-22 08:48:22,553 WARN L197 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2020-12-22 08:48:22,847 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-12-22 08:48:23,142 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-12-22 08:48:23,775 WARN L197 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2020-12-22 08:48:24,300 WARN L197 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2020-12-22 08:48:24,690 WARN L197 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-12-22 08:48:25,194 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-12-22 08:48:25,809 WARN L197 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2020-12-22 08:48:26,400 WARN L197 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2020-12-22 08:48:26,968 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2020-12-22 08:48:27,988 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2020-12-22 08:48:28,777 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-22 08:48:29,213 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-12-22 08:48:30,008 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-12-22 08:48:30,957 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-12-22 08:48:38,358 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-12-22 08:48:39,937 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36