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/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label35_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 15:26:41,842 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 15:26:41,844 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 15:26:41,860 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 15:26:41,861 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 15:26:41,863 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 15:26:41,864 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 15:26:41,867 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 15:26:41,869 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 15:26:41,870 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 15:26:41,872 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 15:26:41,873 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 15:26:41,874 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 15:26:41,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 15:26:41,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 15:26:41,879 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 15:26:41,880 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 15:26:41,883 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 15:26:41,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 15:26:41,894 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 15:26:41,897 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 15:26:41,898 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 15:26:41,900 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 15:26:41,901 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 15:26:41,901 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 15:26:41,902 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 15:26:41,903 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 15:26:41,903 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 15:26:41,904 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 15:26:41,906 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 15:26:41,906 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 15:26:41,907 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 15:26:41,907 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 15:26:41,907 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 15:26:41,908 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 15:26:41,909 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 15:26:41,909 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 15:26:41,924 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 15:26:41,924 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 15:26:41,925 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 15:26:41,925 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 15:26:41,926 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 15:26:41,926 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 15:26:41,926 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 15:26:41,926 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 15:26:41,926 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 15:26:41,927 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 15:26:41,927 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 15:26:41,927 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 15:26:41,927 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 15:26:41,928 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 15:26:41,928 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 15:26:41,928 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 15:26:41,928 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 15:26:41,929 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 15:26:41,929 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 15:26:41,929 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 15:26:41,929 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 15:26:41,929 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 15:26:41,930 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 15:26:41,930 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 15:26:41,930 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 15:26:41,930 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 15:26:41,930 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 15:26:41,931 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 15:26:41,931 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 15:26:41,931 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 15:26:41,931 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 15:26:41,931 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 15:26:41,931 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 15:26:41,932 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 15:26:41,932 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 15:26:41,978 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 15:26:41,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 15:26:41,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 15:26:41,998 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 15:26:41,998 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 15:26:41,999 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label35_false-unreach-call.c [2018-11-12 15:26:42,067 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc7c6159/a88aab9efb524a169aedd76f61ff3029/FLAG9e4a279e4 [2018-11-12 15:26:42,762 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 15:26:42,765 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label35_false-unreach-call.c [2018-11-12 15:26:42,785 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc7c6159/a88aab9efb524a169aedd76f61ff3029/FLAG9e4a279e4 [2018-11-12 15:26:42,803 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc7c6159/a88aab9efb524a169aedd76f61ff3029 [2018-11-12 15:26:42,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 15:26:42,818 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 15:26:42,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 15:26:42,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 15:26:42,823 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 15:26:42,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 03:26:42" (1/1) ... [2018-11-12 15:26:42,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a501ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:42, skipping insertion in model container [2018-11-12 15:26:42,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 03:26:42" (1/1) ... [2018-11-12 15:26:42,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 15:26:42,939 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 15:26:43,663 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 15:26:43,672 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 15:26:43,943 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 15:26:43,967 INFO L193 MainTranslator]: Completed translation [2018-11-12 15:26:43,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43 WrapperNode [2018-11-12 15:26:43,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 15:26:43,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 15:26:43,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 15:26:43,970 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 15:26:43,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43" (1/1) ... [2018-11-12 15:26:44,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43" (1/1) ... [2018-11-12 15:26:44,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 15:26:44,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 15:26:44,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 15:26:44,177 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 15:26:44,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43" (1/1) ... [2018-11-12 15:26:44,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43" (1/1) ... [2018-11-12 15:26:44,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43" (1/1) ... [2018-11-12 15:26:44,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43" (1/1) ... [2018-11-12 15:26:44,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43" (1/1) ... [2018-11-12 15:26:44,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43" (1/1) ... [2018-11-12 15:26:44,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43" (1/1) ... [2018-11-12 15:26:44,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 15:26:44,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 15:26:44,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 15:26:44,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 15:26:44,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 15:26:44,423 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 15:26:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 15:26:44,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 15:26:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 15:26:44,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 15:26:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 15:26:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 15:26:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 15:26:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 15:26:49,071 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 15:26:49,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 03:26:49 BoogieIcfgContainer [2018-11-12 15:26:49,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 15:26:49,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 15:26:49,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 15:26:49,077 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 15:26:49,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 03:26:42" (1/3) ... [2018-11-12 15:26:49,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f328cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 03:26:49, skipping insertion in model container [2018-11-12 15:26:49,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 03:26:43" (2/3) ... [2018-11-12 15:26:49,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f328cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 03:26:49, skipping insertion in model container [2018-11-12 15:26:49,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 03:26:49" (3/3) ... [2018-11-12 15:26:49,082 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label35_false-unreach-call.c [2018-11-12 15:26:49,092 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 15:26:49,102 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 15:26:49,120 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 15:26:49,170 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 15:26:49,170 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 15:26:49,170 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 15:26:49,171 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 15:26:49,171 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 15:26:49,171 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 15:26:49,171 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 15:26:49,171 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 15:26:49,216 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-11-12 15:26:49,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-12 15:26:49,245 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 15:26:49,246 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] [2018-11-12 15:26:49,251 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 15:26:49,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:26:49,257 INFO L82 PathProgramCache]: Analyzing trace with hash 4278633, now seen corresponding path program 1 times [2018-11-12 15:26:49,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 15:26:49,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:26:49,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:26:49,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:26:49,320 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 15:26:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:26:50,155 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 4 [2018-11-12 15:26:50,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 15:26:50,433 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 15:26:50,433 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 15:26:50,433 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 15:26:50,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 15:26:50,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 15:26:50,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 15:26:50,459 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-11-12 15:26:53,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 15:26:53,987 INFO L93 Difference]: Finished difference Result 1077 states and 1927 transitions. [2018-11-12 15:26:53,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 15:26:53,992 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2018-11-12 15:26:53,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 15:26:54,018 INFO L225 Difference]: With dead ends: 1077 [2018-11-12 15:26:54,018 INFO L226 Difference]: Without dead ends: 759 [2018-11-12 15:26:54,026 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 15:26:54,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2018-11-12 15:26:54,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 519. [2018-11-12 15:26:54,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2018-11-12 15:26:54,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 918 transitions. [2018-11-12 15:26:54,153 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 918 transitions. Word has length 152 [2018-11-12 15:26:54,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 15:26:54,155 INFO L480 AbstractCegarLoop]: Abstraction has 519 states and 918 transitions. [2018-11-12 15:26:54,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 15:26:54,156 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 918 transitions. [2018-11-12 15:26:54,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-11-12 15:26:54,168 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 15:26:54,169 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 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] [2018-11-12 15:26:54,169 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 15:26:54,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:26:54,172 INFO L82 PathProgramCache]: Analyzing trace with hash 2112118956, now seen corresponding path program 1 times [2018-11-12 15:26:54,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 15:26:54,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:26:54,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:26:54,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:26:54,174 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 15:26:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:26:54,517 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 15:26:54,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 15:26:54,517 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 15:26:54,518 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 15:26:54,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 15:26:54,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 15:26:54,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 15:26:54,521 INFO L87 Difference]: Start difference. First operand 519 states and 918 transitions. Second operand 6 states. [2018-11-12 15:26:58,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 15:26:58,285 INFO L93 Difference]: Finished difference Result 1480 states and 2698 transitions. [2018-11-12 15:26:58,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 15:26:58,293 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2018-11-12 15:26:58,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 15:26:58,306 INFO L225 Difference]: With dead ends: 1480 [2018-11-12 15:26:58,306 INFO L226 Difference]: Without dead ends: 967 [2018-11-12 15:26:58,309 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 15:26:58,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2018-11-12 15:26:58,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 949. [2018-11-12 15:26:58,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2018-11-12 15:26:58,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1579 transitions. [2018-11-12 15:26:58,377 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1579 transitions. Word has length 180 [2018-11-12 15:26:58,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 15:26:58,378 INFO L480 AbstractCegarLoop]: Abstraction has 949 states and 1579 transitions. [2018-11-12 15:26:58,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 15:26:58,378 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1579 transitions. [2018-11-12 15:26:58,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-11-12 15:26:58,383 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 15:26:58,383 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 15:26:58,384 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 15:26:58,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:26:58,384 INFO L82 PathProgramCache]: Analyzing trace with hash -316440838, now seen corresponding path program 1 times [2018-11-12 15:26:58,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 15:26:58,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:26:58,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:26:58,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:26:58,386 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 15:26:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:26:58,670 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-11-12 15:26:58,726 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 15:26:58,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 15:26:58,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 15:26:58,727 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 15:26:58,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 15:26:58,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 15:26:58,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 15:26:58,729 INFO L87 Difference]: Start difference. First operand 949 states and 1579 transitions. Second operand 6 states. [2018-11-12 15:27:01,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 15:27:01,490 INFO L93 Difference]: Finished difference Result 2919 states and 5077 transitions. [2018-11-12 15:27:01,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 15:27:01,497 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2018-11-12 15:27:01,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 15:27:01,516 INFO L225 Difference]: With dead ends: 2919 [2018-11-12 15:27:01,516 INFO L226 Difference]: Without dead ends: 1976 [2018-11-12 15:27:01,523 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 15:27:01,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2018-11-12 15:27:01,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1933. [2018-11-12 15:27:01,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1933 states. [2018-11-12 15:27:01,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 3125 transitions. [2018-11-12 15:27:01,639 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 3125 transitions. Word has length 187 [2018-11-12 15:27:01,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 15:27:01,639 INFO L480 AbstractCegarLoop]: Abstraction has 1933 states and 3125 transitions. [2018-11-12 15:27:01,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 15:27:01,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 3125 transitions. [2018-11-12 15:27:01,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-11-12 15:27:01,648 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 15:27:01,648 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 15:27:01,649 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 15:27:01,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:27:01,649 INFO L82 PathProgramCache]: Analyzing trace with hash 712687713, now seen corresponding path program 1 times [2018-11-12 15:27:01,649 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 15:27:01,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:27:01,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:27:01,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:27:01,651 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 15:27:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:27:02,184 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 15:27:02,184 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:27:02,184 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 15:27:02,186 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-11-12 15:27:02,188 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [174], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [677], [679], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 15:27:02,268 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 15:27:02,268 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 15:27:03,757 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 15:27:03,760 INFO L272 AbstractInterpreter]: Visited 152 different actions 152 times. Never merged. Never widened. Performed 2907 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2907 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 88 variables. [2018-11-12 15:27:03,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:27:03,794 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 15:27:05,273 INFO L227 lantSequenceWeakener]: Weakened 192 states. On average, predicates are now at 69.71% of their original sizes. [2018-11-12 15:27:05,273 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 15:27:06,966 INFO L415 sIntCurrentIteration]: We unified 197 AI predicates to 197 [2018-11-12 15:27:06,966 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 15:27:06,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 15:27:06,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [7] total 21 [2018-11-12 15:27:06,968 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 15:27:06,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-12 15:27:06,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-12 15:27:06,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-11-12 15:27:06,970 INFO L87 Difference]: Start difference. First operand 1933 states and 3125 transitions. Second operand 16 states. [2018-11-12 15:27:37,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 15:27:37,034 INFO L93 Difference]: Finished difference Result 4070 states and 6541 transitions. [2018-11-12 15:27:37,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-12 15:27:37,034 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 198 [2018-11-12 15:27:37,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 15:27:37,048 INFO L225 Difference]: With dead ends: 4070 [2018-11-12 15:27:37,048 INFO L226 Difference]: Without dead ends: 2143 [2018-11-12 15:27:37,055 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 200 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2018-11-12 15:27:37,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2018-11-12 15:27:37,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2141. [2018-11-12 15:27:37,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2141 states. [2018-11-12 15:27:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 3342 transitions. [2018-11-12 15:27:37,126 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 3342 transitions. Word has length 198 [2018-11-12 15:27:37,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 15:27:37,126 INFO L480 AbstractCegarLoop]: Abstraction has 2141 states and 3342 transitions. [2018-11-12 15:27:37,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-12 15:27:37,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 3342 transitions. [2018-11-12 15:27:37,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-11-12 15:27:37,134 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 15:27:37,135 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-12 15:27:37,135 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 15:27:37,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:27:37,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1109675044, now seen corresponding path program 1 times [2018-11-12 15:27:37,136 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 15:27:37,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:27:37,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:27:37,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:27:37,138 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 15:27:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:27:37,493 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 15:27:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 59 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 15:27:37,898 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:27:37,898 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 15:27:37,899 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-11-12 15:27:37,899 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [174], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [677], [679], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 15:27:37,908 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 15:27:37,908 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 15:27:40,614 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 15:27:40,614 INFO L272 AbstractInterpreter]: Visited 156 different actions 306 times. Merged at 5 different actions 5 times. Never widened. Performed 7894 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7894 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-12 15:27:40,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:27:40,650 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 15:27:42,635 INFO L227 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 71.17% of their original sizes. [2018-11-12 15:27:42,636 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 15:27:49,020 INFO L415 sIntCurrentIteration]: We unified 209 AI predicates to 209 [2018-11-12 15:27:49,021 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 15:27:49,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 15:27:49,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [9] total 29 [2018-11-12 15:27:49,021 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 15:27:49,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-12 15:27:49,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-12 15:27:49,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2018-11-12 15:27:49,023 INFO L87 Difference]: Start difference. First operand 2141 states and 3342 transitions. Second operand 22 states. [2018-11-12 15:28:28,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 15:28:28,204 INFO L93 Difference]: Finished difference Result 4699 states and 7279 transitions. [2018-11-12 15:28:28,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-12 15:28:28,204 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 210 [2018-11-12 15:28:28,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 15:28:28,218 INFO L225 Difference]: With dead ends: 4699 [2018-11-12 15:28:28,218 INFO L226 Difference]: Without dead ends: 2772 [2018-11-12 15:28:28,225 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 220 GetRequests, 132 SyntacticMatches, 57 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=220, Invalid=836, Unknown=0, NotChecked=0, Total=1056 [2018-11-12 15:28:28,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2018-11-12 15:28:28,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 2769. [2018-11-12 15:28:28,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2769 states. [2018-11-12 15:28:28,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4018 transitions. [2018-11-12 15:28:28,298 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4018 transitions. Word has length 210 [2018-11-12 15:28:28,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 15:28:28,298 INFO L480 AbstractCegarLoop]: Abstraction has 2769 states and 4018 transitions. [2018-11-12 15:28:28,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-12 15:28:28,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4018 transitions. [2018-11-12 15:28:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-11-12 15:28:28,306 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 15:28:28,307 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-12 15:28:28,307 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 15:28:28,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:28:28,307 INFO L82 PathProgramCache]: Analyzing trace with hash 121375792, now seen corresponding path program 1 times [2018-11-12 15:28:28,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 15:28:28,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:28:28,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:28:28,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:28:28,309 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 15:28:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:28:28,895 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-12 15:28:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 15:28:29,005 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:28:29,005 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 15:28:29,006 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-11-12 15:28:29,006 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [174], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [677], [679], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 15:28:29,013 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 15:28:29,013 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 15:28:31,736 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 15:28:31,737 INFO L272 AbstractInterpreter]: Visited 157 different actions 462 times. Merged at 7 different actions 14 times. Never widened. Performed 11650 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11650 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-11-12 15:28:31,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:28:31,740 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 15:28:31,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:28:31,740 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-11-12 15:28:31,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:28:31,750 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 15:28:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:28:31,977 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 15:28:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-12 15:28:32,162 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 15:28:32,647 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-12 15:28:32,681 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-12 15:28:32,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-11-12 15:28:32,682 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 15:28:32,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 15:28:32,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 15:28:32,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-12 15:28:32,685 INFO L87 Difference]: Start difference. First operand 2769 states and 4018 transitions. Second operand 3 states. [2018-11-12 15:28:35,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 15:28:35,043 INFO L93 Difference]: Finished difference Result 7177 states and 11073 transitions. [2018-11-12 15:28:35,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 15:28:35,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2018-11-12 15:28:35,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 15:28:35,069 INFO L225 Difference]: With dead ends: 7177 [2018-11-12 15:28:35,070 INFO L226 Difference]: Without dead ends: 4831 [2018-11-12 15:28:35,081 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 438 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-12 15:28:35,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4831 states. [2018-11-12 15:28:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4831 to 4817. [2018-11-12 15:28:35,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4817 states. [2018-11-12 15:28:35,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4817 states to 4817 states and 7126 transitions. [2018-11-12 15:28:35,207 INFO L78 Accepts]: Start accepts. Automaton has 4817 states and 7126 transitions. Word has length 220 [2018-11-12 15:28:35,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 15:28:35,207 INFO L480 AbstractCegarLoop]: Abstraction has 4817 states and 7126 transitions. [2018-11-12 15:28:35,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 15:28:35,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4817 states and 7126 transitions. [2018-11-12 15:28:35,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-11-12 15:28:35,223 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 15:28:35,224 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-12 15:28:35,224 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 15:28:35,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:28:35,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1701062905, now seen corresponding path program 1 times [2018-11-12 15:28:35,225 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 15:28:35,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:28:35,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:28:35,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:28:35,226 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 15:28:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:28:35,594 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 112 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-12 15:28:35,595 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:28:35,595 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 15:28:35,595 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 253 with the following transitions: [2018-11-12 15:28:35,595 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [68], [71], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [194], [197], [201], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [677], [679], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 15:28:35,601 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 15:28:35,602 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 15:28:37,634 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 15:28:37,635 INFO L272 AbstractInterpreter]: Visited 158 different actions 311 times. Merged at 5 different actions 7 times. Never widened. Performed 10368 root evaluator evaluations with a maximum evaluation depth of 6. Performed 10368 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-12 15:28:37,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:28:37,643 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 15:28:37,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:28:37,643 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-11-12 15:28:37,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:28:37,653 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 15:28:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:28:37,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 15:28:37,972 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-12 15:28:37,973 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 15:28:38,336 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 133 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-12 15:28:38,357 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 15:28:38,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-12 15:28:38,357 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 15:28:38,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-12 15:28:38,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-12 15:28:38,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-12 15:28:38,359 INFO L87 Difference]: Start difference. First operand 4817 states and 7126 transitions. Second operand 9 states. [2018-11-12 15:28:42,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 15:28:42,121 INFO L93 Difference]: Finished difference Result 16165 states and 27149 transitions. [2018-11-12 15:28:42,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-12 15:28:42,122 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 252 [2018-11-12 15:28:42,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 15:28:42,192 INFO L225 Difference]: With dead ends: 16165 [2018-11-12 15:28:42,192 INFO L226 Difference]: Without dead ends: 12398 [2018-11-12 15:28:42,219 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 504 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2018-11-12 15:28:42,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12398 states. [2018-11-12 15:28:42,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12398 to 12315. [2018-11-12 15:28:42,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12315 states. [2018-11-12 15:28:42,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12315 states to 12315 states and 18694 transitions. [2018-11-12 15:28:42,645 INFO L78 Accepts]: Start accepts. Automaton has 12315 states and 18694 transitions. Word has length 252 [2018-11-12 15:28:42,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 15:28:42,646 INFO L480 AbstractCegarLoop]: Abstraction has 12315 states and 18694 transitions. [2018-11-12 15:28:42,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-12 15:28:42,646 INFO L276 IsEmpty]: Start isEmpty. Operand 12315 states and 18694 transitions. [2018-11-12 15:28:42,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-11-12 15:28:42,699 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 15:28:42,699 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-11-12 15:28:42,699 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 15:28:42,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:28:42,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1749922437, now seen corresponding path program 1 times [2018-11-12 15:28:42,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 15:28:42,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:28:42,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:28:42,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:28:42,701 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 15:28:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:28:43,278 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 165 proven. 50 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-12 15:28:43,279 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:28:43,279 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 15:28:43,279 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 306 with the following transitions: [2018-11-12 15:28:43,280 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [194], [197], [201], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [315], [320], [322], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [677], [679], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 15:28:43,286 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 15:28:43,286 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 15:28:46,012 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 15:28:46,012 INFO L272 AbstractInterpreter]: Visited 161 different actions 473 times. Merged at 7 different actions 17 times. Never widened. Performed 11764 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11764 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-11-12 15:28:46,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:28:46,016 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 15:28:46,016 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:28:46,016 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 15:28:46,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:28:46,027 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 15:28:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:28:46,254 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 15:28:46,622 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-11-12 15:28:46,622 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 15:28:47,271 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 165 proven. 50 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-12 15:28:47,305 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 15:28:47,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2018-11-12 15:28:47,305 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 15:28:47,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 15:28:47,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 15:28:47,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-12 15:28:47,309 INFO L87 Difference]: Start difference. First operand 12315 states and 18694 transitions. Second operand 10 states. [2018-11-12 15:28:56,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 15:28:56,636 INFO L93 Difference]: Finished difference Result 43408 states and 77997 transitions. [2018-11-12 15:28:56,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-11-12 15:28:56,636 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 305 [2018-11-12 15:28:56,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 15:28:57,056 INFO L225 Difference]: With dead ends: 43408 [2018-11-12 15:28:57,057 INFO L226 Difference]: Without dead ends: 32351 [2018-11-12 15:28:57,160 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 647 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=646, Invalid=2660, Unknown=0, NotChecked=0, Total=3306 [2018-11-12 15:28:57,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32351 states. [2018-11-12 15:28:58,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32351 to 29283. [2018-11-12 15:28:58,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29283 states. [2018-11-12 15:28:58,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29283 states to 29283 states and 41291 transitions. [2018-11-12 15:28:58,223 INFO L78 Accepts]: Start accepts. Automaton has 29283 states and 41291 transitions. Word has length 305 [2018-11-12 15:28:58,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 15:28:58,223 INFO L480 AbstractCegarLoop]: Abstraction has 29283 states and 41291 transitions. [2018-11-12 15:28:58,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 15:28:58,224 INFO L276 IsEmpty]: Start isEmpty. Operand 29283 states and 41291 transitions. [2018-11-12 15:28:58,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2018-11-12 15:28:58,297 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 15:28:58,298 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 15:28:58,298 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 15:28:58,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:28:58,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1026601968, now seen corresponding path program 1 times [2018-11-12 15:28:58,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 15:28:58,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:28:58,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:28:58,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:28:58,300 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 15:28:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:28:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 195 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 15:28:58,884 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:28:58,884 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 15:28:58,885 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 307 with the following transitions: [2018-11-12 15:28:58,885 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [194], [197], [201], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [436], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [677], [679], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 15:28:58,889 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 15:28:58,890 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 15:29:00,049 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 15:29:00,050 INFO L272 AbstractInterpreter]: Visited 156 different actions 308 times. Merged at 5 different actions 7 times. Never widened. Performed 6682 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6682 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-12 15:29:00,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:29:00,061 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 15:29:01,491 INFO L227 lantSequenceWeakener]: Weakened 301 states. On average, predicates are now at 69.75% of their original sizes. [2018-11-12 15:29:01,491 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 15:29:01,793 INFO L415 sIntCurrentIteration]: We unified 305 AI predicates to 305 [2018-11-12 15:29:01,793 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 15:29:01,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 15:29:01,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-12 15:29:01,794 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 15:29:01,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 15:29:01,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 15:29:01,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2018-11-12 15:29:01,795 INFO L87 Difference]: Start difference. First operand 29283 states and 41291 transitions. Second operand 18 states. [2018-11-12 15:30:02,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 15:30:02,222 INFO L93 Difference]: Finished difference Result 56750 states and 81470 transitions. [2018-11-12 15:30:02,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-12 15:30:02,222 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 306 [2018-11-12 15:30:02,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 15:30:02,367 INFO L225 Difference]: With dead ends: 56750 [2018-11-12 15:30:02,367 INFO L226 Difference]: Without dead ends: 34140 [2018-11-12 15:30:02,424 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 314 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2018-11-12 15:30:02,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34140 states. [2018-11-12 15:30:03,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34140 to 34133. [2018-11-12 15:30:03,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34133 states. [2018-11-12 15:30:03,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34133 states to 34133 states and 47184 transitions. [2018-11-12 15:30:03,286 INFO L78 Accepts]: Start accepts. Automaton has 34133 states and 47184 transitions. Word has length 306 [2018-11-12 15:30:03,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 15:30:03,287 INFO L480 AbstractCegarLoop]: Abstraction has 34133 states and 47184 transitions. [2018-11-12 15:30:03,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 15:30:03,287 INFO L276 IsEmpty]: Start isEmpty. Operand 34133 states and 47184 transitions. [2018-11-12 15:30:03,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-11-12 15:30:03,346 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 15:30:03,346 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 15:30:03,346 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 15:30:03,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:30:03,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1171168466, now seen corresponding path program 1 times [2018-11-12 15:30:03,347 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 15:30:03,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:30:03,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:30:03,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:30:03,348 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 15:30:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:30:04,325 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 15:30:04,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:30:04,326 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 15:30:04,326 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 310 with the following transitions: [2018-11-12 15:30:04,326 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [600], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [677], [679], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 15:30:04,330 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 15:30:04,330 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 15:30:06,620 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 15:30:06,620 INFO L272 AbstractInterpreter]: Visited 157 different actions 462 times. Merged at 7 different actions 14 times. Never widened. Performed 11531 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11531 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 88 variables. [2018-11-12 15:30:06,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:30:06,629 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 15:30:06,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:30:06,629 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 15:30:06,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:30:06,641 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 15:30:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:30:06,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 15:30:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 15:30:07,005 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 15:30:07,559 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 15:30:07,582 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 15:30:07,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2018-11-12 15:30:07,582 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 15:30:07,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 15:30:07,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 15:30:07,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-12 15:30:07,585 INFO L87 Difference]: Start difference. First operand 34133 states and 47184 transitions. Second operand 6 states. [2018-11-12 15:30:10,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 15:30:10,950 INFO L93 Difference]: Finished difference Result 80769 states and 120140 transitions. [2018-11-12 15:30:10,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 15:30:10,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 309 [2018-11-12 15:30:10,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 15:30:11,187 INFO L225 Difference]: With dead ends: 80769 [2018-11-12 15:30:11,187 INFO L226 Difference]: Without dead ends: 48104 [2018-11-12 15:30:11,294 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 619 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-11-12 15:30:11,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48104 states. [2018-11-12 15:30:12,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48104 to 46933. [2018-11-12 15:30:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46933 states. [2018-11-12 15:30:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46933 states to 46933 states and 62181 transitions. [2018-11-12 15:30:12,407 INFO L78 Accepts]: Start accepts. Automaton has 46933 states and 62181 transitions. Word has length 309 [2018-11-12 15:30:12,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 15:30:12,408 INFO L480 AbstractCegarLoop]: Abstraction has 46933 states and 62181 transitions. [2018-11-12 15:30:12,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 15:30:12,408 INFO L276 IsEmpty]: Start isEmpty. Operand 46933 states and 62181 transitions. [2018-11-12 15:30:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-11-12 15:30:12,467 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 15:30:12,467 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, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 15:30:12,467 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 15:30:12,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:30:12,468 INFO L82 PathProgramCache]: Analyzing trace with hash -354857209, now seen corresponding path program 1 times [2018-11-12 15:30:12,468 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 15:30:12,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:30:12,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 15:30:12,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 15:30:12,469 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 15:30:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 15:30:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 244 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-12 15:30:12,816 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 15:30:12,816 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 15:30:12,816 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 346 with the following transitions: [2018-11-12 15:30:12,816 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [194], [197], [201], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [543], [548], [550], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [677], [679], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-12 15:30:12,820 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 15:30:12,820 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 15:30:15,893 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 15:30:15,893 INFO L272 AbstractInterpreter]: Visited 160 different actions 472 times. Merged at 7 different actions 18 times. Never widened. Performed 12885 root evaluator evaluations with a maximum evaluation depth of 6. Performed 12885 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-12 15:30:15,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 15:30:15,902 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 15:30:17,722 INFO L227 lantSequenceWeakener]: Weakened 341 states. On average, predicates are now at 69.87% of their original sizes. [2018-11-12 15:30:17,723 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 15:30:18,202 INFO L415 sIntCurrentIteration]: We unified 344 AI predicates to 344 [2018-11-12 15:30:18,203 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 15:30:18,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 15:30:18,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [6] total 28 [2018-11-12 15:30:18,203 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 15:30:18,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-12 15:30:18,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-12 15:30:18,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2018-11-12 15:30:18,205 INFO L87 Difference]: Start difference. First operand 46933 states and 62181 transitions. Second operand 24 states. Received shutdown request... [2018-11-12 15:30:33,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-12 15:30:33,366 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 15:30:33,372 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 15:30:33,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 03:30:33 BoogieIcfgContainer [2018-11-12 15:30:33,373 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 15:30:33,374 INFO L168 Benchmark]: Toolchain (without parser) took 230556.71 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -347.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-11-12 15:30:33,375 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-11-12 15:30:33,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1149.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-12 15:30:33,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 207.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -887.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2018-11-12 15:30:33,377 INFO L168 Benchmark]: Boogie Preprocessor took 169.22 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 15:30:33,378 INFO L168 Benchmark]: RCFGBuilder took 4726.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 273.8 MB). Peak memory consumption was 273.8 MB. Max. memory is 7.1 GB. [2018-11-12 15:30:33,378 INFO L168 Benchmark]: TraceAbstraction took 224299.58 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 181.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-12 15:30:33,383 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1149.64 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 207.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -887.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.22 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4726.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 273.8 MB). Peak memory consumption was 273.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224299.58 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 181.4 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1470]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1470). Cancelled while BasicCegarLoop was constructing difference of abstraction (46933states) and FLOYD_HOARE automaton (currently 14 states, 24 states before enhancement),while ReachableStatesComputation was computing reachable states (1516 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 224.2s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 175.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2486 SDtfs, 16695 SDslu, 3577 SDs, 0 SdLazy, 25025 SolverSat, 3973 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 106.7s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 3410 GetRequests, 3142 SyntacticMatches, 65 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1924 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46933occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 18.4s AbstIntTime, 8 AbstIntIterations, 4 AbstIntStrong, 0.9990951281336118 AbsIntWeakeningRatio, 0.24549763033175356 AbsIntAvgWeakeningVarsNumRemoved, 55.111848341232225 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 4649 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 3750 NumberOfCodeBlocks, 3750 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 4817 ConstructedInterpolants, 0 QuantifiedInterpolants, 3376732 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4694 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 19 InterpolantComputations, 5 PerfectInterpolantSequences, 2366/2554 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown