java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem06_label04_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 18:34:29,819 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 18:34:29,822 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 18:34:29,834 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 18:34:29,835 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 18:34:29,836 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 18:34:29,838 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 18:34:29,840 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 18:34:29,842 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 18:34:29,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 18:34:29,843 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 18:34:29,844 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 18:34:29,845 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 18:34:29,846 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 18:34:29,847 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 18:34:29,848 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 18:34:29,849 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 18:34:29,851 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 18:34:29,853 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 18:34:29,854 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 18:34:29,855 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 18:34:29,857 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 18:34:29,859 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 18:34:29,859 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 18:34:29,860 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 18:34:29,861 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 18:34:29,862 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 18:34:29,862 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 18:34:29,863 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 18:34:29,864 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 18:34:29,864 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 18:34:29,865 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 18:34:29,865 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 18:34:29,866 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 18:34:29,867 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 18:34:29,867 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 18:34:29,868 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 18:34:29,883 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 18:34:29,884 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 18:34:29,885 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 18:34:29,885 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 18:34:29,885 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 18:34:29,886 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 18:34:29,886 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 18:34:29,886 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 18:34:29,886 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 18:34:29,886 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 18:34:29,886 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 18:34:29,887 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 18:34:29,887 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 18:34:29,887 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 18:34:29,887 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 18:34:29,887 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 18:34:29,888 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 18:34:29,888 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 18:34:29,888 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 18:34:29,888 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 18:34:29,889 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 18:34:29,889 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 18:34:29,889 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 18:34:29,889 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 18:34:29,889 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 18:34:29,889 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 18:34:29,890 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 18:34:29,890 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 18:34:29,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 18:34:29,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 18:34:29,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 18:34:29,954 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 18:34:29,955 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 18:34:29,956 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label04_false-unreach-call.c [2018-11-06 18:34:30,019 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5f6a872/f4a75596b22e487ea64d4e19b7a13d87/FLAG62e04e759 [2018-11-06 18:34:30,920 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 18:34:30,921 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label04_false-unreach-call.c [2018-11-06 18:34:30,964 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5f6a872/f4a75596b22e487ea64d4e19b7a13d87/FLAG62e04e759 [2018-11-06 18:34:30,980 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5f6a872/f4a75596b22e487ea64d4e19b7a13d87 [2018-11-06 18:34:30,992 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 18:34:30,994 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 18:34:30,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 18:34:30,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 18:34:31,003 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 18:34:31,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:34:30" (1/1) ... [2018-11-06 18:34:31,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b29a96e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:31, skipping insertion in model container [2018-11-06 18:34:31,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:34:30" (1/1) ... [2018-11-06 18:34:31,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 18:34:31,284 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 18:34:33,686 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 18:34:33,692 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 18:34:34,806 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 18:34:34,871 INFO L193 MainTranslator]: Completed translation [2018-11-06 18:34:34,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34 WrapperNode [2018-11-06 18:34:34,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 18:34:34,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 18:34:34,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 18:34:34,874 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 18:34:34,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34" (1/1) ... [2018-11-06 18:34:35,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34" (1/1) ... [2018-11-06 18:34:35,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 18:34:35,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 18:34:35,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 18:34:35,671 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 18:34:35,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34" (1/1) ... [2018-11-06 18:34:35,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34" (1/1) ... [2018-11-06 18:34:35,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34" (1/1) ... [2018-11-06 18:34:35,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34" (1/1) ... [2018-11-06 18:34:35,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34" (1/1) ... [2018-11-06 18:34:35,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34" (1/1) ... [2018-11-06 18:34:36,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34" (1/1) ... [2018-11-06 18:34:36,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 18:34:36,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 18:34:36,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 18:34:36,073 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 18:34:36,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34" (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 [2018-11-06 18:34:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 18:34:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 18:34:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 18:34:47,103 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 18:34:47,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:34:47 BoogieIcfgContainer [2018-11-06 18:34:47,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 18:34:47,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 18:34:47,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 18:34:47,109 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 18:34:47,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:34:30" (1/3) ... [2018-11-06 18:34:47,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774375da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:34:47, skipping insertion in model container [2018-11-06 18:34:47,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:34:34" (2/3) ... [2018-11-06 18:34:47,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774375da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:34:47, skipping insertion in model container [2018-11-06 18:34:47,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:34:47" (3/3) ... [2018-11-06 18:34:47,114 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label04_false-unreach-call.c [2018-11-06 18:34:47,125 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 18:34:47,138 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 18:34:47,155 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 18:34:47,215 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 18:34:47,216 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 18:34:47,216 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 18:34:47,216 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 18:34:47,216 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 18:34:47,217 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 18:34:47,217 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 18:34:47,217 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 18:34:47,217 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 18:34:47,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states. [2018-11-06 18:34:47,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2018-11-06 18:34:47,337 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:34:47,340 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:34:47,343 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:34:47,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:34:47,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1878770774, now seen corresponding path program 1 times [2018-11-06 18:34:47,353 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:34:47,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:34:47,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:34:47,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:34:47,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:34:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:34:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 18:34:50,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:34:50,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 18:34:50,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 18:34:50,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 18:34:50,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:34:50,921 INFO L87 Difference]: Start difference. First operand 1291 states. Second operand 4 states. [2018-11-06 18:35:05,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:35:05,271 INFO L93 Difference]: Finished difference Result 4733 states and 9001 transitions. [2018-11-06 18:35:05,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:35:05,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 942 [2018-11-06 18:35:05,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:35:05,330 INFO L225 Difference]: With dead ends: 4733 [2018-11-06 18:35:05,330 INFO L226 Difference]: Without dead ends: 3435 [2018-11-06 18:35:05,346 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:35:05,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2018-11-06 18:35:05,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3351. [2018-11-06 18:35:05,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3351 states. [2018-11-06 18:35:05,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 5794 transitions. [2018-11-06 18:35:05,527 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 5794 transitions. Word has length 942 [2018-11-06 18:35:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:35:05,538 INFO L480 AbstractCegarLoop]: Abstraction has 3351 states and 5794 transitions. [2018-11-06 18:35:05,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 18:35:05,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 5794 transitions. [2018-11-06 18:35:05,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2018-11-06 18:35:05,635 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:35:05,636 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:35:05,636 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:35:05,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:35:05,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1797798060, now seen corresponding path program 1 times [2018-11-06 18:35:05,639 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:35:05,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:35:05,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:05,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:35:05,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:35:06,731 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-06 18:35:06,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:35:06,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 18:35:06,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 18:35:06,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 18:35:06,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:35:06,742 INFO L87 Difference]: Start difference. First operand 3351 states and 5794 transitions. Second operand 3 states. [2018-11-06 18:35:11,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:35:11,335 INFO L93 Difference]: Finished difference Result 10028 states and 17357 transitions. [2018-11-06 18:35:11,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 18:35:11,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 956 [2018-11-06 18:35:11,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:35:11,373 INFO L225 Difference]: With dead ends: 10028 [2018-11-06 18:35:11,373 INFO L226 Difference]: Without dead ends: 6679 [2018-11-06 18:35:11,385 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:35:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2018-11-06 18:35:11,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6675. [2018-11-06 18:35:11,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6675 states. [2018-11-06 18:35:11,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 11531 transitions. [2018-11-06 18:35:11,539 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 11531 transitions. Word has length 956 [2018-11-06 18:35:11,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:35:11,540 INFO L480 AbstractCegarLoop]: Abstraction has 6675 states and 11531 transitions. [2018-11-06 18:35:11,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 18:35:11,540 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 11531 transitions. [2018-11-06 18:35:11,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2018-11-06 18:35:11,565 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:35:11,566 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:35:11,566 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:35:11,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:35:11,567 INFO L82 PathProgramCache]: Analyzing trace with hash 439459109, now seen corresponding path program 1 times [2018-11-06 18:35:11,567 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:35:11,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:35:11,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:11,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:35:11,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:35:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 18:35:12,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:35:12,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 18:35:12,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 18:35:12,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 18:35:12,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:35:12,385 INFO L87 Difference]: Start difference. First operand 6675 states and 11531 transitions. Second operand 3 states. [2018-11-06 18:35:17,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:35:17,938 INFO L93 Difference]: Finished difference Result 19403 states and 33783 transitions. [2018-11-06 18:35:17,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 18:35:17,939 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 958 [2018-11-06 18:35:17,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:35:17,989 INFO L225 Difference]: With dead ends: 19403 [2018-11-06 18:35:17,990 INFO L226 Difference]: Without dead ends: 12730 [2018-11-06 18:35:18,003 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:35:18,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12730 states. [2018-11-06 18:35:18,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12730 to 12692. [2018-11-06 18:35:18,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12692 states. [2018-11-06 18:35:18,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12692 states to 12692 states and 19910 transitions. [2018-11-06 18:35:18,308 INFO L78 Accepts]: Start accepts. Automaton has 12692 states and 19910 transitions. Word has length 958 [2018-11-06 18:35:18,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:35:18,308 INFO L480 AbstractCegarLoop]: Abstraction has 12692 states and 19910 transitions. [2018-11-06 18:35:18,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 18:35:18,309 INFO L276 IsEmpty]: Start isEmpty. Operand 12692 states and 19910 transitions. [2018-11-06 18:35:18,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2018-11-06 18:35:18,348 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:35:18,349 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:35:18,350 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:35:18,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:35:18,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1228500927, now seen corresponding path program 1 times [2018-11-06 18:35:18,351 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:35:18,351 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:35:18,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:18,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:35:18,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:35:19,236 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-06 18:35:19,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:35:19,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 18:35:19,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 18:35:19,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 18:35:19,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:35:19,238 INFO L87 Difference]: Start difference. First operand 12692 states and 19910 transitions. Second operand 3 states. [2018-11-06 18:35:25,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:35:25,657 INFO L93 Difference]: Finished difference Result 37419 states and 58880 transitions. [2018-11-06 18:35:25,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 18:35:25,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 965 [2018-11-06 18:35:25,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:35:25,717 INFO L225 Difference]: With dead ends: 37419 [2018-11-06 18:35:25,717 INFO L226 Difference]: Without dead ends: 24729 [2018-11-06 18:35:25,732 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:35:25,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24729 states. [2018-11-06 18:35:26,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24729 to 24711. [2018-11-06 18:35:26,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24711 states. [2018-11-06 18:35:26,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24711 states to 24711 states and 36169 transitions. [2018-11-06 18:35:26,064 INFO L78 Accepts]: Start accepts. Automaton has 24711 states and 36169 transitions. Word has length 965 [2018-11-06 18:35:26,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:35:26,064 INFO L480 AbstractCegarLoop]: Abstraction has 24711 states and 36169 transitions. [2018-11-06 18:35:26,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 18:35:26,065 INFO L276 IsEmpty]: Start isEmpty. Operand 24711 states and 36169 transitions. [2018-11-06 18:35:26,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2018-11-06 18:35:26,110 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:35:26,111 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:35:26,111 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:35:26,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:35:26,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1033652397, now seen corresponding path program 1 times [2018-11-06 18:35:26,112 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:35:26,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:35:26,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:26,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:35:26,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:35:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-06 18:35:26,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:35:26,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 18:35:26,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 18:35:26,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 18:35:26,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:35:26,796 INFO L87 Difference]: Start difference. First operand 24711 states and 36169 transitions. Second operand 3 states. [2018-11-06 18:35:33,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:35:33,271 INFO L93 Difference]: Finished difference Result 73394 states and 107575 transitions. [2018-11-06 18:35:33,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 18:35:33,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 973 [2018-11-06 18:35:33,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:35:33,367 INFO L225 Difference]: With dead ends: 73394 [2018-11-06 18:35:33,367 INFO L226 Difference]: Without dead ends: 48685 [2018-11-06 18:35:33,394 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:35:33,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48685 states. [2018-11-06 18:35:33,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48685 to 48649. [2018-11-06 18:35:33,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48649 states. [2018-11-06 18:35:34,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48649 states to 48649 states and 66527 transitions. [2018-11-06 18:35:34,009 INFO L78 Accepts]: Start accepts. Automaton has 48649 states and 66527 transitions. Word has length 973 [2018-11-06 18:35:34,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:35:34,010 INFO L480 AbstractCegarLoop]: Abstraction has 48649 states and 66527 transitions. [2018-11-06 18:35:34,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 18:35:34,010 INFO L276 IsEmpty]: Start isEmpty. Operand 48649 states and 66527 transitions. [2018-11-06 18:35:34,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 991 [2018-11-06 18:35:34,080 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:35:34,081 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:35:34,081 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:35:34,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:35:34,082 INFO L82 PathProgramCache]: Analyzing trace with hash -909443087, now seen corresponding path program 1 times [2018-11-06 18:35:34,082 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:35:34,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:35:34,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:34,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:35:34,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:35:34,935 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 55 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-06 18:35:34,936 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 18:35:34,936 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 18:35:34,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:35:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:35:35,372 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 18:35:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-06 18:35:36,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 18:35:36,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-06 18:35:36,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 18:35:36,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 18:35:36,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 18:35:36,462 INFO L87 Difference]: Start difference. First operand 48649 states and 66527 transitions. Second operand 5 states. [2018-11-06 18:35:49,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:35:49,506 INFO L93 Difference]: Finished difference Result 193042 states and 264149 transitions. [2018-11-06 18:35:49,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:35:49,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 990 [2018-11-06 18:35:49,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:35:49,770 INFO L225 Difference]: With dead ends: 193042 [2018-11-06 18:35:49,770 INFO L226 Difference]: Without dead ends: 144395 [2018-11-06 18:35:49,825 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 993 GetRequests, 989 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 18:35:49,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144395 states. [2018-11-06 18:35:51,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144395 to 144287. [2018-11-06 18:35:51,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144287 states. [2018-11-06 18:35:51,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144287 states to 144287 states and 185699 transitions. [2018-11-06 18:35:51,903 INFO L78 Accepts]: Start accepts. Automaton has 144287 states and 185699 transitions. Word has length 990 [2018-11-06 18:35:51,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:35:51,903 INFO L480 AbstractCegarLoop]: Abstraction has 144287 states and 185699 transitions. [2018-11-06 18:35:51,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 18:35:51,904 INFO L276 IsEmpty]: Start isEmpty. Operand 144287 states and 185699 transitions. [2018-11-06 18:35:52,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1027 [2018-11-06 18:35:52,163 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:35:52,164 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:35:52,164 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:35:52,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:35:52,165 INFO L82 PathProgramCache]: Analyzing trace with hash 720514179, now seen corresponding path program 1 times [2018-11-06 18:35:52,165 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:35:52,165 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:35:52,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:52,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:35:52,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:35:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:35:53,594 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-11-06 18:35:53,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:35:53,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 18:35:53,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 18:35:53,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 18:35:53,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:35:53,596 INFO L87 Difference]: Start difference. First operand 144287 states and 185699 transitions. Second operand 3 states. [2018-11-06 18:36:00,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:36:00,743 INFO L93 Difference]: Finished difference Result 360510 states and 459161 transitions. [2018-11-06 18:36:00,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 18:36:00,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1026 [2018-11-06 18:36:00,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:36:01,004 INFO L225 Difference]: With dead ends: 360510 [2018-11-06 18:36:01,004 INFO L226 Difference]: Without dead ends: 216225 [2018-11-06 18:36:01,105 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 18:36:01,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216225 states. [2018-11-06 18:36:03,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216225 to 216186. [2018-11-06 18:36:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216186 states. [2018-11-06 18:36:04,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216186 states to 216186 states and 272900 transitions. [2018-11-06 18:36:04,060 INFO L78 Accepts]: Start accepts. Automaton has 216186 states and 272900 transitions. Word has length 1026 [2018-11-06 18:36:04,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:36:04,061 INFO L480 AbstractCegarLoop]: Abstraction has 216186 states and 272900 transitions. [2018-11-06 18:36:04,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 18:36:04,061 INFO L276 IsEmpty]: Start isEmpty. Operand 216186 states and 272900 transitions. [2018-11-06 18:36:04,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2018-11-06 18:36:04,260 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:36:04,261 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:36:04,261 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:36:04,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:36:04,262 INFO L82 PathProgramCache]: Analyzing trace with hash 161561752, now seen corresponding path program 2 times [2018-11-06 18:36:04,262 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:36:04,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:36:04,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:36:04,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:36:04,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:36:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:36:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-11-06 18:36:06,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:36:06,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 18:36:06,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 18:36:06,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 18:36:06,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:36:06,594 INFO L87 Difference]: Start difference. First operand 216186 states and 272900 transitions. Second operand 4 states. [2018-11-06 18:36:20,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:36:20,846 INFO L93 Difference]: Finished difference Result 843751 states and 1062765 transitions. [2018-11-06 18:36:20,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:36:20,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1071 [2018-11-06 18:36:20,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:36:21,754 INFO L225 Difference]: With dead ends: 843751 [2018-11-06 18:36:21,754 INFO L226 Difference]: Without dead ends: 627567 [2018-11-06 18:36:21,940 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:36:22,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627567 states. [2018-11-06 18:36:31,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627567 to 414081. [2018-11-06 18:36:31,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414081 states. [2018-11-06 18:36:32,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414081 states to 414081 states and 502814 transitions. [2018-11-06 18:36:32,418 INFO L78 Accepts]: Start accepts. Automaton has 414081 states and 502814 transitions. Word has length 1071 [2018-11-06 18:36:32,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:36:32,418 INFO L480 AbstractCegarLoop]: Abstraction has 414081 states and 502814 transitions. [2018-11-06 18:36:32,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 18:36:32,418 INFO L276 IsEmpty]: Start isEmpty. Operand 414081 states and 502814 transitions. [2018-11-06 18:36:32,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2018-11-06 18:36:32,693 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:36:32,694 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:36:32,694 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:36:32,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:36:32,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1167421484, now seen corresponding path program 1 times [2018-11-06 18:36:32,695 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:36:32,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:36:32,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:36:32,697 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-06 18:36:32,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:36:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:36:33,272 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-11-06 18:36:42,005 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2018-11-06 18:36:42,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 18:36:42,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 18:36:42,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 18:36:42,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 18:36:42,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:36:42,009 INFO L87 Difference]: Start difference. First operand 414081 states and 502814 transitions. Second operand 4 states. [2018-11-06 18:36:56,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:36:56,896 INFO L93 Difference]: Finished difference Result 1245722 states and 1490234 transitions. [2018-11-06 18:36:56,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:36:56,896 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1085 [2018-11-06 18:36:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:36:58,262 INFO L225 Difference]: With dead ends: 1245722 [2018-11-06 18:36:58,262 INFO L226 Difference]: Without dead ends: 831643 [2018-11-06 18:36:58,480 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 18:36:59,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831643 states. [2018-11-06 18:37:07,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831643 to 623320. [2018-11-06 18:37:07,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623320 states. [2018-11-06 18:37:09,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623320 states to 623320 states and 744741 transitions. [2018-11-06 18:37:09,610 INFO L78 Accepts]: Start accepts. Automaton has 623320 states and 744741 transitions. Word has length 1085 [2018-11-06 18:37:09,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:37:09,611 INFO L480 AbstractCegarLoop]: Abstraction has 623320 states and 744741 transitions. [2018-11-06 18:37:09,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 18:37:09,611 INFO L276 IsEmpty]: Start isEmpty. Operand 623320 states and 744741 transitions. [2018-11-06 18:37:10,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1121 [2018-11-06 18:37:10,076 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 18:37:10,077 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 18:37:10,077 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 18:37:10,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 18:37:10,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1005216411, now seen corresponding path program 1 times [2018-11-06 18:37:10,078 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 18:37:10,078 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 18:37:10,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:37:10,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:37:10,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 18:37:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:37:10,553 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-11-06 18:37:18,247 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 265 proven. 9 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-11-06 18:37:18,247 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 18:37:18,247 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 18:37:18,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 18:37:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 18:37:18,702 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 18:37:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-11-06 18:37:19,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 18:37:19,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 18:37:19,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 18:37:19,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 18:37:19,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 18:37:19,773 INFO L87 Difference]: Start difference. First operand 623320 states and 744741 transitions. Second operand 5 states. [2018-11-06 18:37:38,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 18:37:38,258 INFO L93 Difference]: Finished difference Result 1528290 states and 1837390 transitions. [2018-11-06 18:37:38,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 18:37:38,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1120 [2018-11-06 18:37:38,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 18:37:39,540 INFO L225 Difference]: With dead ends: 1528290 [2018-11-06 18:37:39,541 INFO L226 Difference]: Without dead ends: 904972 [2018-11-06 18:37:39,816 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1125 GetRequests, 1120 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 18:37:40,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904972 states. [2018-11-06 18:37:50,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904972 to 904724. [2018-11-06 18:37:50,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904724 states. [2018-11-06 18:37:51,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904724 states to 904724 states and 1029362 transitions. [2018-11-06 18:37:51,868 INFO L78 Accepts]: Start accepts. Automaton has 904724 states and 1029362 transitions. Word has length 1120 [2018-11-06 18:37:51,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 18:37:51,869 INFO L480 AbstractCegarLoop]: Abstraction has 904724 states and 1029362 transitions. [2018-11-06 18:37:51,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 18:37:51,869 INFO L276 IsEmpty]: Start isEmpty. Operand 904724 states and 1029362 transitions. Received shutdown request... [2018-11-06 18:38:02,444 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 18:38:02,448 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 18:38:02,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 06:38:02 BoogieIcfgContainer [2018-11-06 18:38:02,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 18:38:02,450 INFO L168 Benchmark]: Toolchain (without parser) took 211456.65 ms. Allocated memory was 1.5 GB in the beginning and 6.6 GB in the end (delta: 5.0 GB). Free memory was 1.4 GB in the beginning and 4.2 GB in the end (delta: -2.8 GB). Peak memory consumption was 5.3 GB. Max. memory is 7.1 GB. [2018-11-06 18:38:02,451 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 18:38:02,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3877.08 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-11-06 18:38:02,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 797.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 809.0 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 91.5 MB. Max. memory is 7.1 GB. [2018-11-06 18:38:02,453 INFO L168 Benchmark]: Boogie Preprocessor took 401.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. [2018-11-06 18:38:02,454 INFO L168 Benchmark]: RCFGBuilder took 11031.65 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 207.1 MB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 449.0 MB). Peak memory consumption was 656.1 MB. Max. memory is 7.1 GB. [2018-11-06 18:38:02,457 INFO L168 Benchmark]: TraceAbstraction took 195343.70 ms. Allocated memory was 2.5 GB in the beginning and 6.6 GB in the end (delta: 4.0 GB). Free memory was 1.7 GB in the beginning and 4.2 GB in the end (delta: -2.5 GB). Peak memory consumption was 4.5 GB. Max. memory is 7.1 GB. [2018-11-06 18:38:02,464 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3877.08 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 797.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 809.0 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 91.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 401.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11031.65 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 207.1 MB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 449.0 MB). Peak memory consumption was 656.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 195343.70 ms. Allocated memory was 2.5 GB in the beginning and 6.6 GB in the end (delta: 4.0 GB). Free memory was 1.7 GB in the beginning and 4.2 GB in the end (delta: -2.5 GB). Peak memory consumption was 4.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 9315]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 9315). Cancelled while IsEmpty was searching accepting run (input had 904724 states). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1291 locations, 1 error locations. TIMEOUT Result, 195.2s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 110.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13241 SDtfs, 22175 SDslu, 4840 SDs, 0 SdLazy, 45599 SolverSat, 10731 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2142 GetRequests, 2118 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=904724occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 40.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 422384 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 12196 NumberOfCodeBlocks, 12196 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 12184 ConstructedInterpolants, 0 QuantifiedInterpolants, 15098414 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2696 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 1775/1789 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown