/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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:10:48,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:10:48,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:10:48,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:10:48,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:10:48,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:10:48,392 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:10:48,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:10:48,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:10:48,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:10:48,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:10:48,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:10:48,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:10:48,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:10:48,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:10:48,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:10:48,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:10:48,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:10:48,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:10:48,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:10:48,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:10:48,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:10:48,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:10:48,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:10:48,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:10:48,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:10:48,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:10:48,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:10:48,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:10:48,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:10:48,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:10:48,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:10:48,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:10:48,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:10:48,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:10:48,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:10:48,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:10:48,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:10:48,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:10:48,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:10:48,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:10:48,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:10:48,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:10:48,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:10:48,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:10:48,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:10:48,482 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:10:48,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:10:48,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:10:48,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:10:48,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:10:48,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:10:48,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:10:48,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:10:48,485 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:10:48,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:10:48,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:10:48,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:10:48,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:10:48,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:10:48,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:10:48,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:10:48,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:10:48,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:10:48,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:10:48,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:10:48,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:10:48,489 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:10:48,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:10:48,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:10:48,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:10:48,954 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:10:48,954 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:10:48,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:10:49,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b955fc6f/aeaaac0c19c345d99e078e6762a1f4c6/FLAG221ccc19a [2020-12-22 08:10:49,964 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:10:49,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:10:49,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b955fc6f/aeaaac0c19c345d99e078e6762a1f4c6/FLAG221ccc19a [2020-12-22 08:10:50,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b955fc6f/aeaaac0c19c345d99e078e6762a1f4c6 [2020-12-22 08:10:50,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:10:50,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:10:50,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:10:50,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:10:50,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:10:50,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:10:50" (1/1) ... [2020-12-22 08:10:50,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b9ee05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:50, skipping insertion in model container [2020-12-22 08:10:50,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:10:50" (1/1) ... [2020-12-22 08:10:50,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:10:50,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:10:51,027 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30750,30763] [2020-12-22 08:10:51,050 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31640,31653] [2020-12-22 08:10:51,079 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33342,33355] [2020-12-22 08:10:51,097 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34232,34245] [2020-12-22 08:10:51,135 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36749,36762] [2020-12-22 08:10:51,153 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37642,37655] [2020-12-22 08:10:51,183 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39347,39360] [2020-12-22 08:10:51,207 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40624,40637] [2020-12-22 08:10:51,366 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54673,54686] [2020-12-22 08:10:51,388 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55566,55579] [2020-12-22 08:10:51,421 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57271,57284] [2020-12-22 08:10:51,499 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61472,61485] [2020-12-22 08:10:51,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:10:51,797 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:10:52,039 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30750,30763] [2020-12-22 08:10:52,055 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31640,31653] [2020-12-22 08:10:52,079 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33342,33355] [2020-12-22 08:10:52,095 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34232,34245] [2020-12-22 08:10:52,127 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36749,36762] [2020-12-22 08:10:52,142 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37642,37655] [2020-12-22 08:10:52,168 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39347,39360] [2020-12-22 08:10:52,189 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40624,40637] [2020-12-22 08:10:52,337 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54673,54686] [2020-12-22 08:10:52,360 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55566,55579] [2020-12-22 08:10:52,390 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57271,57284] [2020-12-22 08:10:52,465 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61472,61485] [2020-12-22 08:10:52,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:10:52,606 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:10:52,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52 WrapperNode [2020-12-22 08:10:52,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:10:52,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:10:52,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:10:52,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:10:52,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52" (1/1) ... [2020-12-22 08:10:52,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52" (1/1) ... [2020-12-22 08:10:52,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:10:52,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:10:52,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:10:52,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:10:52,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52" (1/1) ... [2020-12-22 08:10:52,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52" (1/1) ... [2020-12-22 08:10:52,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52" (1/1) ... [2020-12-22 08:10:52,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52" (1/1) ... [2020-12-22 08:10:52,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52" (1/1) ... [2020-12-22 08:10:52,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52" (1/1) ... [2020-12-22 08:10:52,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52" (1/1) ... [2020-12-22 08:10:52,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:10:52,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:10:52,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:10:52,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:10:52,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52" (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 08:10:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:10:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:10:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:10:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:10:57,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:10:57,163 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:10:57,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:10:57 BoogieIcfgContainer [2020-12-22 08:10:57,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:10:57,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:10:57,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:10:57,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:10:57,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:10:50" (1/3) ... [2020-12-22 08:10:57,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402ff7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:10:57, skipping insertion in model container [2020-12-22 08:10:57,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:10:52" (2/3) ... [2020-12-22 08:10:57,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402ff7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:10:57, skipping insertion in model container [2020-12-22 08:10:57,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:10:57" (3/3) ... [2020-12-22 08:10:57,176 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:10:57,184 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:10:57,190 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-22 08:10:57,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-22 08:10:57,248 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:10:57,249 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:10:57,249 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:10:57,249 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:10:57,249 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:10:57,249 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:10:57,249 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:10:57,249 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:10:57,308 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states. [2020-12-22 08:10:57,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-12-22 08:10:57,341 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:10:57,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:57,343 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:10:57,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:10:57,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1812290183, now seen corresponding path program 1 times [2020-12-22 08:10:57,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:10:57,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216707072] [2020-12-22 08:10:57,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:10:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:10:58,467 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 08:10:58,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216707072] [2020-12-22 08:10:58,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:10:58,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:10:58,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715416593] [2020-12-22 08:10:58,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:10:58,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:10:58,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:10:58,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:58,502 INFO L87 Difference]: Start difference. First operand 913 states. Second operand 3 states. [2020-12-22 08:10:58,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:10:58,909 INFO L93 Difference]: Finished difference Result 1576 states and 2828 transitions. [2020-12-22 08:10:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:10:58,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2020-12-22 08:10:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:10:58,965 INFO L225 Difference]: With dead ends: 1576 [2020-12-22 08:10:58,965 INFO L226 Difference]: Without dead ends: 1299 [2020-12-22 08:10:58,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:59,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2020-12-22 08:10:59,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1297. [2020-12-22 08:10:59,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1297 states. [2020-12-22 08:10:59,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1975 transitions. [2020-12-22 08:10:59,141 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1975 transitions. Word has length 300 [2020-12-22 08:10:59,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:10:59,146 INFO L481 AbstractCegarLoop]: Abstraction has 1297 states and 1975 transitions. [2020-12-22 08:10:59,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:10:59,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1975 transitions. [2020-12-22 08:10:59,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-12-22 08:10:59,157 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:10:59,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:59,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:10:59,160 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:10:59,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:10:59,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1884582879, now seen corresponding path program 1 times [2020-12-22 08:10:59,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:10:59,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783770314] [2020-12-22 08:10:59,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:10:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:10:59,650 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 08:10:59,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783770314] [2020-12-22 08:10:59,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:10:59,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:10:59,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525649795] [2020-12-22 08:10:59,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:10:59,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:10:59,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:10:59,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:59,658 INFO L87 Difference]: Start difference. First operand 1297 states and 1975 transitions. Second operand 3 states. [2020-12-22 08:11:00,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:00,046 INFO L93 Difference]: Finished difference Result 2468 states and 3803 transitions. [2020-12-22 08:11:00,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:11:00,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2020-12-22 08:11:00,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:00,062 INFO L225 Difference]: With dead ends: 2468 [2020-12-22 08:11:00,063 INFO L226 Difference]: Without dead ends: 2097 [2020-12-22 08:11:00,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:00,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2097 states. [2020-12-22 08:11:00,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2097 to 2095. [2020-12-22 08:11:00,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2095 states. [2020-12-22 08:11:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 3203 transitions. [2020-12-22 08:11:00,148 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 3203 transitions. Word has length 300 [2020-12-22 08:11:00,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:00,149 INFO L481 AbstractCegarLoop]: Abstraction has 2095 states and 3203 transitions. [2020-12-22 08:11:00,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:11:00,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 3203 transitions. [2020-12-22 08:11:00,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-12-22 08:11:00,156 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:00,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:00,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:11:00,157 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:00,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:00,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1937738574, now seen corresponding path program 1 times [2020-12-22 08:11:00,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:00,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936472800] [2020-12-22 08:11:00,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:00,566 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 08:11:00,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936472800] [2020-12-22 08:11:00,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:00,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:11:00,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347457180] [2020-12-22 08:11:00,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:11:00,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:00,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:11:00,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:00,570 INFO L87 Difference]: Start difference. First operand 2095 states and 3203 transitions. Second operand 3 states. [2020-12-22 08:11:01,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:01,357 INFO L93 Difference]: Finished difference Result 4334 states and 6718 transitions. [2020-12-22 08:11:01,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:11:01,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2020-12-22 08:11:01,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:01,381 INFO L225 Difference]: With dead ends: 4334 [2020-12-22 08:11:01,382 INFO L226 Difference]: Without dead ends: 3737 [2020-12-22 08:11:01,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:01,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2020-12-22 08:11:01,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3735. [2020-12-22 08:11:01,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3735 states. [2020-12-22 08:11:01,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 5729 transitions. [2020-12-22 08:11:01,551 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 5729 transitions. Word has length 300 [2020-12-22 08:11:01,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:01,552 INFO L481 AbstractCegarLoop]: Abstraction has 3735 states and 5729 transitions. [2020-12-22 08:11:01,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:11:01,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 5729 transitions. [2020-12-22 08:11:01,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-12-22 08:11:01,562 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:01,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:01,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:11:01,563 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:01,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:01,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1938169550, now seen corresponding path program 1 times [2020-12-22 08:11:01,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:01,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289873658] [2020-12-22 08:11:01,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:02,356 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 08:11:02,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289873658] [2020-12-22 08:11:02,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:02,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:11:02,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120507294] [2020-12-22 08:11:02,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 08:11:02,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:02,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 08:11:02,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 08:11:02,359 INFO L87 Difference]: Start difference. First operand 3735 states and 5729 transitions. Second operand 4 states. [2020-12-22 08:11:02,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:02,943 INFO L93 Difference]: Finished difference Result 11091 states and 16998 transitions. [2020-12-22 08:11:02,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:11:02,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 300 [2020-12-22 08:11:02,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:02,985 INFO L225 Difference]: With dead ends: 11091 [2020-12-22 08:11:02,985 INFO L226 Difference]: Without dead ends: 7367 [2020-12-22 08:11:02,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:11:03,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7367 states. [2020-12-22 08:11:03,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7367 to 7187. [2020-12-22 08:11:03,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7187 states. [2020-12-22 08:11:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7187 states to 7187 states and 10993 transitions. [2020-12-22 08:11:03,381 INFO L78 Accepts]: Start accepts. Automaton has 7187 states and 10993 transitions. Word has length 300 [2020-12-22 08:11:03,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:03,381 INFO L481 AbstractCegarLoop]: Abstraction has 7187 states and 10993 transitions. [2020-12-22 08:11:03,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 08:11:03,382 INFO L276 IsEmpty]: Start isEmpty. Operand 7187 states and 10993 transitions. [2020-12-22 08:11:03,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-12-22 08:11:03,398 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:03,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:03,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:11:03,399 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:03,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:03,399 INFO L82 PathProgramCache]: Analyzing trace with hash -663774509, now seen corresponding path program 1 times [2020-12-22 08:11:03,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:03,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052153462] [2020-12-22 08:11:03,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:03,731 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 08:11:03,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052153462] [2020-12-22 08:11:03,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:03,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:11:03,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832083124] [2020-12-22 08:11:03,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:11:03,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:03,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:11:03,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:03,734 INFO L87 Difference]: Start difference. First operand 7187 states and 10993 transitions. Second operand 3 states. [2020-12-22 08:11:04,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:04,554 INFO L93 Difference]: Finished difference Result 21174 states and 32335 transitions. [2020-12-22 08:11:04,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:11:04,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 302 [2020-12-22 08:11:04,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:04,640 INFO L225 Difference]: With dead ends: 21174 [2020-12-22 08:11:04,640 INFO L226 Difference]: Without dead ends: 14112 [2020-12-22 08:11:04,655 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:04,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14112 states. [2020-12-22 08:11:05,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14112 to 13932. [2020-12-22 08:11:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13932 states. [2020-12-22 08:11:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13932 states to 13932 states and 21212 transitions. [2020-12-22 08:11:05,393 INFO L78 Accepts]: Start accepts. Automaton has 13932 states and 21212 transitions. Word has length 302 [2020-12-22 08:11:05,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:05,394 INFO L481 AbstractCegarLoop]: Abstraction has 13932 states and 21212 transitions. [2020-12-22 08:11:05,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:11:05,394 INFO L276 IsEmpty]: Start isEmpty. Operand 13932 states and 21212 transitions. [2020-12-22 08:11:05,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-12-22 08:11:05,421 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:05,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:05,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:11:05,422 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:05,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:05,423 INFO L82 PathProgramCache]: Analyzing trace with hash 172563160, now seen corresponding path program 1 times [2020-12-22 08:11:05,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:05,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762677897] [2020-12-22 08:11:05,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:05,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:11:05,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762677897] [2020-12-22 08:11:05,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:05,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:11:05,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714316308] [2020-12-22 08:11:05,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:11:05,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:05,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:11:05,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:05,563 INFO L87 Difference]: Start difference. First operand 13932 states and 21212 transitions. Second operand 3 states. [2020-12-22 08:11:06,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:06,598 INFO L93 Difference]: Finished difference Result 41729 states and 63520 transitions. [2020-12-22 08:11:06,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:11:06,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 302 [2020-12-22 08:11:06,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:06,670 INFO L225 Difference]: With dead ends: 41729 [2020-12-22 08:11:06,676 INFO L226 Difference]: Without dead ends: 27835 [2020-12-22 08:11:06,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:06,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27835 states. [2020-12-22 08:11:07,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27835 to 13951. [2020-12-22 08:11:07,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13951 states. [2020-12-22 08:11:07,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13951 states to 13951 states and 21240 transitions. [2020-12-22 08:11:07,798 INFO L78 Accepts]: Start accepts. Automaton has 13951 states and 21240 transitions. Word has length 302 [2020-12-22 08:11:07,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:07,799 INFO L481 AbstractCegarLoop]: Abstraction has 13951 states and 21240 transitions. [2020-12-22 08:11:07,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:11:07,799 INFO L276 IsEmpty]: Start isEmpty. Operand 13951 states and 21240 transitions. [2020-12-22 08:11:07,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-12-22 08:11:07,832 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:07,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:07,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:11:07,833 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:07,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:07,834 INFO L82 PathProgramCache]: Analyzing trace with hash -992441086, now seen corresponding path program 1 times [2020-12-22 08:11:07,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:07,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137611996] [2020-12-22 08:11:07,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:08,049 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 08:11:08,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137611996] [2020-12-22 08:11:08,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:08,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:11:08,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141090499] [2020-12-22 08:11:08,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:11:08,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:08,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:11:08,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:08,058 INFO L87 Difference]: Start difference. First operand 13951 states and 21240 transitions. Second operand 3 states. [2020-12-22 08:11:09,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:09,302 INFO L93 Difference]: Finished difference Result 41748 states and 63541 transitions. [2020-12-22 08:11:09,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:11:09,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 303 [2020-12-22 08:11:09,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:09,376 INFO L225 Difference]: With dead ends: 41748 [2020-12-22 08:11:09,376 INFO L226 Difference]: Without dead ends: 27853 [2020-12-22 08:11:09,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:09,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27853 states. [2020-12-22 08:11:10,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27853 to 13969. [2020-12-22 08:11:10,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13969 states. [2020-12-22 08:11:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13969 states to 13969 states and 21261 transitions. [2020-12-22 08:11:10,386 INFO L78 Accepts]: Start accepts. Automaton has 13969 states and 21261 transitions. Word has length 303 [2020-12-22 08:11:10,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:10,387 INFO L481 AbstractCegarLoop]: Abstraction has 13969 states and 21261 transitions. [2020-12-22 08:11:10,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:11:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand 13969 states and 21261 transitions. [2020-12-22 08:11:10,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:11:10,416 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:10,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:10,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:11:10,417 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:10,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:10,418 INFO L82 PathProgramCache]: Analyzing trace with hash -143383666, now seen corresponding path program 1 times [2020-12-22 08:11:10,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:10,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746378619] [2020-12-22 08:11:10,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:10,735 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 08:11:10,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746378619] [2020-12-22 08:11:10,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:10,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:11:10,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121504935] [2020-12-22 08:11:10,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:11:10,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:10,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:11:10,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:10,737 INFO L87 Difference]: Start difference. First operand 13969 states and 21261 transitions. Second operand 3 states. [2020-12-22 08:11:12,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:12,185 INFO L93 Difference]: Finished difference Result 41048 states and 62368 transitions. [2020-12-22 08:11:12,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:11:12,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2020-12-22 08:11:12,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:12,253 INFO L225 Difference]: With dead ends: 41048 [2020-12-22 08:11:12,254 INFO L226 Difference]: Without dead ends: 27320 [2020-12-22 08:11:12,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:12,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27320 states. [2020-12-22 08:11:13,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27320 to 27140. [2020-12-22 08:11:13,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27140 states. [2020-12-22 08:11:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27140 states to 27140 states and 41061 transitions. [2020-12-22 08:11:14,039 INFO L78 Accepts]: Start accepts. Automaton has 27140 states and 41061 transitions. Word has length 304 [2020-12-22 08:11:14,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:14,040 INFO L481 AbstractCegarLoop]: Abstraction has 27140 states and 41061 transitions. [2020-12-22 08:11:14,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:11:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 27140 states and 41061 transitions. [2020-12-22 08:11:14,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:11:14,087 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:14,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:14,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:11:14,088 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:14,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:14,089 INFO L82 PathProgramCache]: Analyzing trace with hash -780262677, now seen corresponding path program 1 times [2020-12-22 08:11:14,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:14,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418692953] [2020-12-22 08:11:14,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:14,582 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 08:11:14,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418692953] [2020-12-22 08:11:14,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:14,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:11:14,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577524783] [2020-12-22 08:11:14,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:11:14,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:14,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:11:14,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:11:14,585 INFO L87 Difference]: Start difference. First operand 27140 states and 41061 transitions. Second operand 5 states. [2020-12-22 08:11:17,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:17,084 INFO L93 Difference]: Finished difference Result 80278 states and 121280 transitions. [2020-12-22 08:11:17,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:11:17,085 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 304 [2020-12-22 08:11:17,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:17,177 INFO L225 Difference]: With dead ends: 80278 [2020-12-22 08:11:17,178 INFO L226 Difference]: Without dead ends: 53193 [2020-12-22 08:11:17,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:11:17,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53193 states. [2020-12-22 08:11:20,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53193 to 53029. [2020-12-22 08:11:20,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53029 states. [2020-12-22 08:11:20,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53029 states to 53029 states and 79666 transitions. [2020-12-22 08:11:20,159 INFO L78 Accepts]: Start accepts. Automaton has 53029 states and 79666 transitions. Word has length 304 [2020-12-22 08:11:20,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:20,159 INFO L481 AbstractCegarLoop]: Abstraction has 53029 states and 79666 transitions. [2020-12-22 08:11:20,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:11:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand 53029 states and 79666 transitions. [2020-12-22 08:11:20,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-12-22 08:11:20,215 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:20,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:20,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:11:20,216 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:20,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:20,217 INFO L82 PathProgramCache]: Analyzing trace with hash 103770907, now seen corresponding path program 1 times [2020-12-22 08:11:20,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:20,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237985642] [2020-12-22 08:11:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:20,937 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 08:11:20,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237985642] [2020-12-22 08:11:20,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:20,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:11:20,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257676746] [2020-12-22 08:11:20,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 08:11:20,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:20,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 08:11:20,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 08:11:20,940 INFO L87 Difference]: Start difference. First operand 53029 states and 79666 transitions. Second operand 4 states. [2020-12-22 08:11:25,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:25,453 INFO L93 Difference]: Finished difference Result 156669 states and 235106 transitions. [2020-12-22 08:11:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:11:25,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 306 [2020-12-22 08:11:25,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:25,634 INFO L225 Difference]: With dead ends: 156669 [2020-12-22 08:11:25,634 INFO L226 Difference]: Without dead ends: 103837 [2020-12-22 08:11:25,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:11:25,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103837 states. [2020-12-22 08:11:30,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103837 to 103645. [2020-12-22 08:11:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103645 states. [2020-12-22 08:11:31,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103645 states to 103645 states and 154625 transitions. [2020-12-22 08:11:31,057 INFO L78 Accepts]: Start accepts. Automaton has 103645 states and 154625 transitions. Word has length 306 [2020-12-22 08:11:31,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:31,057 INFO L481 AbstractCegarLoop]: Abstraction has 103645 states and 154625 transitions. [2020-12-22 08:11:31,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 08:11:31,063 INFO L276 IsEmpty]: Start isEmpty. Operand 103645 states and 154625 transitions. [2020-12-22 08:11:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-22 08:11:31,178 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:31,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:31,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:11:31,179 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:31,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:31,179 INFO L82 PathProgramCache]: Analyzing trace with hash -679370637, now seen corresponding path program 1 times [2020-12-22 08:11:31,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:31,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596030332] [2020-12-22 08:11:31,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:31,733 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 08:11:31,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596030332] [2020-12-22 08:11:31,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:31,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:11:31,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868474276] [2020-12-22 08:11:31,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:11:31,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:31,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:11:31,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:31,736 INFO L87 Difference]: Start difference. First operand 103645 states and 154625 transitions. Second operand 3 states. [2020-12-22 08:11:40,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:40,239 INFO L93 Difference]: Finished difference Result 305807 states and 455555 transitions. [2020-12-22 08:11:40,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:11:40,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-12-22 08:11:40,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:40,570 INFO L225 Difference]: With dead ends: 305807 [2020-12-22 08:11:40,570 INFO L226 Difference]: Without dead ends: 203055 [2020-12-22 08:11:40,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:40,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203055 states. [2020-12-22 08:11:50,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203055 to 202863. [2020-12-22 08:11:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202863 states. [2020-12-22 08:11:51,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202863 states to 202863 states and 300499 transitions. [2020-12-22 08:11:51,612 INFO L78 Accepts]: Start accepts. Automaton has 202863 states and 300499 transitions. Word has length 308 [2020-12-22 08:11:51,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:51,613 INFO L481 AbstractCegarLoop]: Abstraction has 202863 states and 300499 transitions. [2020-12-22 08:11:51,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:11:51,613 INFO L276 IsEmpty]: Start isEmpty. Operand 202863 states and 300499 transitions. [2020-12-22 08:11:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-22 08:11:51,774 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:51,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:51,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:11:51,775 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:51,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:51,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1248380984, now seen corresponding path program 1 times [2020-12-22 08:11:51,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:51,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434817783] [2020-12-22 08:11:51,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:51,900 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 08:11:51,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434817783] [2020-12-22 08:11:51,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:51,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:11:51,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575478651] [2020-12-22 08:11:51,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:11:51,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:51,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:11:51,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:51,902 INFO L87 Difference]: Start difference. First operand 202863 states and 300499 transitions. Second operand 3 states. [2020-12-22 08:12:09,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:09,140 INFO L93 Difference]: Finished difference Result 607793 states and 900191 transitions. [2020-12-22 08:12:09,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:12:09,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-12-22 08:12:09,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:10,089 INFO L225 Difference]: With dead ends: 607793 [2020-12-22 08:12:10,089 INFO L226 Difference]: Without dead ends: 405373 [2020-12-22 08:12:10,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:10,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405373 states. [2020-12-22 08:12:23,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405373 to 203053. [2020-12-22 08:12:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203053 states. [2020-12-22 08:12:23,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203053 states to 203053 states and 300779 transitions. [2020-12-22 08:12:23,663 INFO L78 Accepts]: Start accepts. Automaton has 203053 states and 300779 transitions. Word has length 308 [2020-12-22 08:12:23,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:23,663 INFO L481 AbstractCegarLoop]: Abstraction has 203053 states and 300779 transitions. [2020-12-22 08:12:23,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:12:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 203053 states and 300779 transitions. [2020-12-22 08:12:23,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-12-22 08:12:23,825 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:23,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:23,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:12:23,825 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:23,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:23,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1220016356, now seen corresponding path program 1 times [2020-12-22 08:12:23,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:23,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126035262] [2020-12-22 08:12:23,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:24,420 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 08:12:24,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126035262] [2020-12-22 08:12:24,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:24,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:12:24,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502857114] [2020-12-22 08:12:24,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:12:24,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:24,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:12:24,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:24,423 INFO L87 Difference]: Start difference. First operand 203053 states and 300779 transitions. Second operand 3 states. [2020-12-22 08:12:43,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:43,381 INFO L93 Difference]: Finished difference Result 607905 states and 900269 transitions. [2020-12-22 08:12:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:12:43,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 309 [2020-12-22 08:12:43,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:44,279 INFO L225 Difference]: With dead ends: 607905 [2020-12-22 08:12:44,280 INFO L226 Difference]: Without dead ends: 405535 [2020-12-22 08:12:44,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:44,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405535 states. [2020-12-22 08:12:58,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405535 to 203215. [2020-12-22 08:12:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203215 states. [2020-12-22 08:12:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203215 states to 203215 states and 300965 transitions. [2020-12-22 08:12:59,711 INFO L78 Accepts]: Start accepts. Automaton has 203215 states and 300965 transitions. Word has length 309 [2020-12-22 08:12:59,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:59,711 INFO L481 AbstractCegarLoop]: Abstraction has 203215 states and 300965 transitions. [2020-12-22 08:12:59,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:12:59,711 INFO L276 IsEmpty]: Start isEmpty. Operand 203215 states and 300965 transitions. [2020-12-22 08:12:59,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-12-22 08:12:59,949 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:59,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:12:59,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:12:59,950 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:59,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:59,951 INFO L82 PathProgramCache]: Analyzing trace with hash -781535058, now seen corresponding path program 1 times [2020-12-22 08:12:59,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:59,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289707201] [2020-12-22 08:12:59,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:13:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:13:00,741 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 08:13:00,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289707201] [2020-12-22 08:13:00,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:13:00,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:13:00,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718244830] [2020-12-22 08:13:00,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:13:00,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:13:00,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:13:00,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:13:00,746 INFO L87 Difference]: Start difference. First operand 203215 states and 300965 transitions. Second operand 3 states. [2020-12-22 08:13:22,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:13:22,877 INFO L93 Difference]: Finished difference Result 576893 states and 852893 transitions. [2020-12-22 08:13:22,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:13:22,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 310 [2020-12-22 08:13:22,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:13:23,447 INFO L225 Difference]: With dead ends: 576893 [2020-12-22 08:13:23,447 INFO L226 Difference]: Without dead ends: 375221 [2020-12-22 08:13:23,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:13:24,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375221 states. [2020-12-22 08:13:46,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375221 to 375029. [2020-12-22 08:13:46,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375029 states. [2020-12-22 08:13:47,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375029 states to 375029 states and 550767 transitions. [2020-12-22 08:13:47,679 INFO L78 Accepts]: Start accepts. Automaton has 375029 states and 550767 transitions. Word has length 310 [2020-12-22 08:13:47,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:13:47,680 INFO L481 AbstractCegarLoop]: Abstraction has 375029 states and 550767 transitions. [2020-12-22 08:13:47,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:13:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 375029 states and 550767 transitions. [2020-12-22 08:13:48,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-12-22 08:13:48,559 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:13:48,560 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:48,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:13:48,560 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:13:48,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:13:48,560 INFO L82 PathProgramCache]: Analyzing trace with hash -45432373, now seen corresponding path program 1 times [2020-12-22 08:13:48,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:13:48,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81512842] [2020-12-22 08:13:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:13:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:13:49,390 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 08:13:49,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81512842] [2020-12-22 08:13:49,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:13:49,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:13:49,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120133399] [2020-12-22 08:13:49,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:13:49,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:13:49,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:13:49,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:13:49,394 INFO L87 Difference]: Start difference. First operand 375029 states and 550767 transitions. Second operand 5 states.