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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label31_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 12:48:04,619 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 12:48:04,621 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 12:48:04,636 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 12:48:04,637 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 12:48:04,638 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 12:48:04,641 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 12:48:04,644 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 12:48:04,646 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 12:48:04,647 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 12:48:04,654 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 12:48:04,655 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 12:48:04,659 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 12:48:04,660 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 12:48:04,661 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 12:48:04,664 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 12:48:04,665 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 12:48:04,668 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 12:48:04,673 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 12:48:04,675 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 12:48:04,678 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 12:48:04,679 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 12:48:04,684 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 12:48:04,684 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 12:48:04,685 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 12:48:04,687 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 12:48:04,689 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 12:48:04,689 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 12:48:04,690 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 12:48:04,696 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 12:48:04,697 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 12:48:04,699 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 12:48:04,700 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 12:48:04,700 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 12:48:04,701 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 12:48:04,702 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 12:48:04,702 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-19 12:48:04,731 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 12:48:04,731 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 12:48:04,732 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 12:48:04,732 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 12:48:04,733 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 12:48:04,733 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 12:48:04,733 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 12:48:04,733 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 12:48:04,733 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 12:48:04,734 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 12:48:04,734 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 12:48:04,734 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 12:48:04,735 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 12:48:04,736 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 12:48:04,736 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 12:48:04,736 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 12:48:04,738 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 12:48:04,738 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 12:48:04,739 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 12:48:04,739 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 12:48:04,739 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 12:48:04,740 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 12:48:04,740 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 12:48:04,740 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 12:48:04,741 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 12:48:04,741 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 12:48:04,741 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 12:48:04,741 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 12:48:04,742 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 12:48:04,742 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 12:48:04,742 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 12:48:04,742 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 12:48:04,742 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 12:48:04,743 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 12:48:04,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 12:48:04,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 12:48:04,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 12:48:04,834 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 12:48:04,834 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 12:48:04,835 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label31_true-unreach-call.c [2018-09-19 12:48:05,193 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a328472/bc153058852d4a0e98fd7077c3604e3e/FLAGe8600a170 [2018-09-19 12:48:05,658 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 12:48:05,659 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label31_true-unreach-call.c [2018-09-19 12:48:05,687 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a328472/bc153058852d4a0e98fd7077c3604e3e/FLAGe8600a170 [2018-09-19 12:48:05,706 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a328472/bc153058852d4a0e98fd7077c3604e3e [2018-09-19 12:48:05,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 12:48:05,721 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 12:48:05,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 12:48:05,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 12:48:05,732 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 12:48:05,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:48:05" (1/1) ... [2018-09-19 12:48:05,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aabe07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:05, skipping insertion in model container [2018-09-19 12:48:05,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 12:48:05" (1/1) ... [2018-09-19 12:48:05,752 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 12:48:07,021 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:48:07,043 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 12:48:07,661 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 12:48:07,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07 WrapperNode [2018-09-19 12:48:07,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 12:48:07,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 12:48:07,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 12:48:07,955 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 12:48:07,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07" (1/1) ... [2018-09-19 12:48:08,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07" (1/1) ... [2018-09-19 12:48:08,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 12:48:08,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 12:48:08,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 12:48:08,731 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 12:48:08,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07" (1/1) ... [2018-09-19 12:48:08,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07" (1/1) ... [2018-09-19 12:48:08,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07" (1/1) ... [2018-09-19 12:48:08,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07" (1/1) ... [2018-09-19 12:48:08,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07" (1/1) ... [2018-09-19 12:48:08,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07" (1/1) ... [2018-09-19 12:48:08,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07" (1/1) ... [2018-09-19 12:48:09,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 12:48:09,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 12:48:09,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 12:48:09,046 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 12:48:09,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07" (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 [2018-09-19 12:48:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 12:48:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 12:48:09,116 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 12:48:09,116 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 12:48:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 12:48:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 12:48:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 12:48:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 12:48:09,117 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 12:48:09,117 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 12:48:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 12:48:09,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 12:48:09,118 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 12:48:09,118 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 12:48:19,429 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 12:48:19,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:48:19 BoogieIcfgContainer [2018-09-19 12:48:19,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 12:48:19,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 12:48:19,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 12:48:19,435 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 12:48:19,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 12:48:05" (1/3) ... [2018-09-19 12:48:19,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483b0404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:48:19, skipping insertion in model container [2018-09-19 12:48:19,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 12:48:07" (2/3) ... [2018-09-19 12:48:19,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483b0404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 12:48:19, skipping insertion in model container [2018-09-19 12:48:19,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 12:48:19" (3/3) ... [2018-09-19 12:48:19,438 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label31_true-unreach-call.c [2018-09-19 12:48:19,449 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 12:48:19,458 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 12:48:19,528 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 12:48:19,529 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 12:48:19,529 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 12:48:19,529 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 12:48:19,529 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 12:48:19,530 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 12:48:19,530 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 12:48:19,530 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 12:48:19,530 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 12:48:19,575 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-19 12:48:19,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-19 12:48:19,587 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:48:19,588 INFO L376 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] [2018-09-19 12:48:19,589 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:48:19,595 INFO L82 PathProgramCache]: Analyzing trace with hash -621967516, now seen corresponding path program 1 times [2018-09-19 12:48:19,598 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:48:19,599 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 71 with the following transitions: [2018-09-19 12:48:19,602 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-19 12:48:19,647 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:48:19,647 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:48:20,199 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:48:20,201 INFO L272 AbstractInterpreter]: Visited 69 different actions 69 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 12:48:20,227 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:48:20,431 INFO L232 lantSequenceWeakener]: Weakened 67 states. On average, predicates are now at 77.81% of their original sizes. [2018-09-19 12:48:20,432 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:48:20,688 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:48:20,690 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:48:20,690 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 12:48:20,690 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:48:20,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 12:48:20,704 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 12:48:20,705 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:48:20,708 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-19 12:48:34,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:48:34,804 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-19 12:48:34,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 12:48:34,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2018-09-19 12:48:34,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:48:34,859 INFO L225 Difference]: With dead ends: 2448 [2018-09-19 12:48:34,859 INFO L226 Difference]: Without dead ends: 1606 [2018-09-19 12:48:34,875 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 12:48:34,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-19 12:48:35,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-19 12:48:35,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-19 12:48:35,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-19 12:48:35,044 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 70 [2018-09-19 12:48:35,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:48:35,044 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-19 12:48:35,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 12:48:35,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-19 12:48:35,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-19 12:48:35,054 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:48:35,054 INFO L376 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, 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] [2018-09-19 12:48:35,055 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:48:35,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1046087974, now seen corresponding path program 1 times [2018-09-19 12:48:35,055 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:48:35,056 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-09-19 12:48:35,056 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:48:35,064 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:48:35,064 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:48:35,271 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:48:35,271 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:48:35,312 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:48:35,601 INFO L232 lantSequenceWeakener]: Weakened 143 states. On average, predicates are now at 76.37% of their original sizes. [2018-09-19 12:48:35,601 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:48:35,991 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:48:35,992 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:48:35,992 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:48:35,992 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:48:35,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:48:35,994 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:48:35,994 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:48:35,994 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 10 states. [2018-09-19 12:48:51,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:48:51,121 INFO L93 Difference]: Finished difference Result 3218 states and 5468 transitions. [2018-09-19 12:48:51,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:48:51,123 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 146 [2018-09-19 12:48:51,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:48:51,135 INFO L225 Difference]: With dead ends: 3218 [2018-09-19 12:48:51,136 INFO L226 Difference]: Without dead ends: 2388 [2018-09-19 12:48:51,143 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 152 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:48:51,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-09-19 12:48:51,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2385. [2018-09-19 12:48:51,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2385 states. [2018-09-19 12:48:51,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3159 transitions. [2018-09-19 12:48:51,203 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3159 transitions. Word has length 146 [2018-09-19 12:48:51,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:48:51,204 INFO L480 AbstractCegarLoop]: Abstraction has 2385 states and 3159 transitions. [2018-09-19 12:48:51,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:48:51,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3159 transitions. [2018-09-19 12:48:51,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-19 12:48:51,210 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:48:51,211 INFO L376 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, 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] [2018-09-19 12:48:51,211 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:48:51,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1213968518, now seen corresponding path program 1 times [2018-09-19 12:48:51,212 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:48:51,212 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-09-19 12:48:51,212 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:48:51,219 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:48:51,219 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:48:51,407 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:48:51,626 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:48:51,627 INFO L272 AbstractInterpreter]: Visited 153 different actions 300 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:48:51,668 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:48:52,070 INFO L232 lantSequenceWeakener]: Weakened 213 states. On average, predicates are now at 75.92% of their original sizes. [2018-09-19 12:48:52,070 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:48:52,864 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:48:52,865 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:48:52,865 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:48:52,865 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:48:52,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:48:52,866 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:48:52,866 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:48:52,867 INFO L87 Difference]: Start difference. First operand 2385 states and 3159 transitions. Second operand 10 states. [2018-09-19 12:49:06,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:49:06,860 INFO L93 Difference]: Finished difference Result 3988 states and 6259 transitions. [2018-09-19 12:49:06,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:49:06,861 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 216 [2018-09-19 12:49:06,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:49:06,877 INFO L225 Difference]: With dead ends: 3988 [2018-09-19 12:49:06,877 INFO L226 Difference]: Without dead ends: 3158 [2018-09-19 12:49:06,880 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 222 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:49:06,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2018-09-19 12:49:06,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 3155. [2018-09-19 12:49:06,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3155 states. [2018-09-19 12:49:06,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3155 states to 3155 states and 3945 transitions. [2018-09-19 12:49:06,959 INFO L78 Accepts]: Start accepts. Automaton has 3155 states and 3945 transitions. Word has length 216 [2018-09-19 12:49:06,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:49:06,959 INFO L480 AbstractCegarLoop]: Abstraction has 3155 states and 3945 transitions. [2018-09-19 12:49:06,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:49:06,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3155 states and 3945 transitions. [2018-09-19 12:49:06,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-09-19 12:49:06,969 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:49:06,969 INFO L376 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, 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] [2018-09-19 12:49:06,970 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:49:06,970 INFO L82 PathProgramCache]: Analyzing trace with hash -164098382, now seen corresponding path program 1 times [2018-09-19 12:49:06,970 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:49:06,970 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-09-19 12:49:06,971 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:49:06,982 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:49:06,982 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:49:07,130 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:49:07,438 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:49:07,438 INFO L272 AbstractInterpreter]: Visited 157 different actions 458 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:49:07,477 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:49:07,813 INFO L232 lantSequenceWeakener]: Weakened 217 states. On average, predicates are now at 75.91% of their original sizes. [2018-09-19 12:49:07,813 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:49:08,196 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:49:08,197 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:49:08,197 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:49:08,197 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:49:08,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:49:08,198 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:49:08,198 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:49:08,198 INFO L87 Difference]: Start difference. First operand 3155 states and 3945 transitions. Second operand 10 states. [2018-09-19 12:49:23,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:49:23,071 INFO L93 Difference]: Finished difference Result 4759 states and 7046 transitions. [2018-09-19 12:49:23,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:49:23,079 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 220 [2018-09-19 12:49:23,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:49:23,095 INFO L225 Difference]: With dead ends: 4759 [2018-09-19 12:49:23,096 INFO L226 Difference]: Without dead ends: 3929 [2018-09-19 12:49:23,100 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 226 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:49:23,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2018-09-19 12:49:23,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 3924. [2018-09-19 12:49:23,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3924 states. [2018-09-19 12:49:23,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 4754 transitions. [2018-09-19 12:49:23,184 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 4754 transitions. Word has length 220 [2018-09-19 12:49:23,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:49:23,184 INFO L480 AbstractCegarLoop]: Abstraction has 3924 states and 4754 transitions. [2018-09-19 12:49:23,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:49:23,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 4754 transitions. [2018-09-19 12:49:23,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-09-19 12:49:23,190 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:49:23,190 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:49:23,191 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:49:23,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1420131140, now seen corresponding path program 1 times [2018-09-19 12:49:23,191 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:49:23,191 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-09-19 12:49:23,192 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:49:23,196 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:49:23,196 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:49:23,350 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:49:23,557 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:49:23,557 INFO L272 AbstractInterpreter]: Visited 154 different actions 456 times. Merged at 7 different actions 16 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:49:23,588 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:49:24,149 INFO L232 lantSequenceWeakener]: Weakened 289 states. On average, predicates are now at 75.71% of their original sizes. [2018-09-19 12:49:24,149 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:49:24,932 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:49:24,933 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:49:24,933 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:49:24,933 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:49:24,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:49:24,934 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:49:24,934 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:49:24,934 INFO L87 Difference]: Start difference. First operand 3924 states and 4754 transitions. Second operand 10 states. [2018-09-19 12:49:40,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:49:40,430 INFO L93 Difference]: Finished difference Result 6329 states and 8713 transitions. [2018-09-19 12:49:40,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:49:40,432 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 292 [2018-09-19 12:49:40,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:49:40,461 INFO L225 Difference]: With dead ends: 6329 [2018-09-19 12:49:40,461 INFO L226 Difference]: Without dead ends: 5499 [2018-09-19 12:49:40,466 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 298 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:49:40,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2018-09-19 12:49:40,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 5494. [2018-09-19 12:49:40,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5494 states. [2018-09-19 12:49:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5494 states to 5494 states and 6413 transitions. [2018-09-19 12:49:40,585 INFO L78 Accepts]: Start accepts. Automaton has 5494 states and 6413 transitions. Word has length 292 [2018-09-19 12:49:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:49:40,586 INFO L480 AbstractCegarLoop]: Abstraction has 5494 states and 6413 transitions. [2018-09-19 12:49:40,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:49:40,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5494 states and 6413 transitions. [2018-09-19 12:49:40,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2018-09-19 12:49:40,592 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:49:40,592 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:49:40,593 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:49:40,593 INFO L82 PathProgramCache]: Analyzing trace with hash 225301236, now seen corresponding path program 1 times [2018-09-19 12:49:40,593 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:49:40,593 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 297 with the following transitions: [2018-09-19 12:49:40,595 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:49:40,600 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:49:40,600 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:49:40,747 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:49:41,042 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:49:41,043 INFO L272 AbstractInterpreter]: Visited 158 different actions 622 times. Merged at 7 different actions 23 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:49:41,084 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:49:41,448 INFO L232 lantSequenceWeakener]: Weakened 293 states. On average, predicates are now at 75.7% of their original sizes. [2018-09-19 12:49:41,448 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:49:41,668 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:49:41,669 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:49:41,669 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:49:41,669 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:49:41,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:49:41,670 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:49:41,670 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:49:41,674 INFO L87 Difference]: Start difference. First operand 5494 states and 6413 transitions. Second operand 10 states. [2018-09-19 12:49:57,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:49:57,948 INFO L93 Difference]: Finished difference Result 8735 states and 11267 transitions. [2018-09-19 12:49:57,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:49:57,949 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 296 [2018-09-19 12:49:57,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:49:57,977 INFO L225 Difference]: With dead ends: 8735 [2018-09-19 12:49:57,977 INFO L226 Difference]: Without dead ends: 7104 [2018-09-19 12:49:57,984 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 302 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:49:57,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7104 states. [2018-09-19 12:49:58,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7104 to 7096. [2018-09-19 12:49:58,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7096 states. [2018-09-19 12:49:58,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7096 states to 7096 states and 8145 transitions. [2018-09-19 12:49:58,114 INFO L78 Accepts]: Start accepts. Automaton has 7096 states and 8145 transitions. Word has length 296 [2018-09-19 12:49:58,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:49:58,115 INFO L480 AbstractCegarLoop]: Abstraction has 7096 states and 8145 transitions. [2018-09-19 12:49:58,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:49:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 7096 states and 8145 transitions. [2018-09-19 12:49:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-09-19 12:49:58,122 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:49:58,122 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:49:58,122 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:49:58,123 INFO L82 PathProgramCache]: Analyzing trace with hash -2061718556, now seen corresponding path program 1 times [2018-09-19 12:49:58,123 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:49:58,123 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 305 with the following transitions: [2018-09-19 12:49:58,123 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2416], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:49:58,126 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:49:58,127 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:49:58,233 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:49:58,560 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:49:58,560 INFO L272 AbstractInterpreter]: Visited 158 different actions 620 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:49:58,598 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:49:59,122 INFO L232 lantSequenceWeakener]: Weakened 301 states. On average, predicates are now at 75.68% of their original sizes. [2018-09-19 12:49:59,122 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:49:59,225 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:49:59,225 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:49:59,225 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:49:59,225 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:49:59,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:49:59,226 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:49:59,226 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:49:59,227 INFO L87 Difference]: Start difference. First operand 7096 states and 8145 transitions. Second operand 10 states. [2018-09-19 12:50:14,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:50:14,772 INFO L93 Difference]: Finished difference Result 8703 states and 11254 transitions. [2018-09-19 12:50:14,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:50:14,772 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 304 [2018-09-19 12:50:14,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:50:14,797 INFO L225 Difference]: With dead ends: 8703 [2018-09-19 12:50:14,797 INFO L226 Difference]: Without dead ends: 7873 [2018-09-19 12:50:14,803 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 310 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:50:14,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7873 states. [2018-09-19 12:50:14,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7873 to 7865. [2018-09-19 12:50:14,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7865 states. [2018-09-19 12:50:14,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7865 states to 7865 states and 8981 transitions. [2018-09-19 12:50:14,940 INFO L78 Accepts]: Start accepts. Automaton has 7865 states and 8981 transitions. Word has length 304 [2018-09-19 12:50:14,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:50:14,941 INFO L480 AbstractCegarLoop]: Abstraction has 7865 states and 8981 transitions. [2018-09-19 12:50:14,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:50:14,941 INFO L276 IsEmpty]: Start isEmpty. Operand 7865 states and 8981 transitions. [2018-09-19 12:50:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-09-19 12:50:14,949 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:50:14,950 INFO L376 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, 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] [2018-09-19 12:50:14,950 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:50:14,950 INFO L82 PathProgramCache]: Analyzing trace with hash -975311816, now seen corresponding path program 1 times [2018-09-19 12:50:14,951 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:50:14,951 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 311 with the following transitions: [2018-09-19 12:50:14,951 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2440], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:50:14,954 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:50:14,954 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:50:15,093 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:50:15,439 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:50:15,439 INFO L272 AbstractInterpreter]: Visited 158 different actions 620 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:50:15,478 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:50:15,828 INFO L232 lantSequenceWeakener]: Weakened 307 states. On average, predicates are now at 75.67% of their original sizes. [2018-09-19 12:50:15,829 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:50:15,945 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:50:15,945 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:50:15,945 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:50:15,946 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:50:15,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:50:15,946 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:50:15,946 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:50:15,947 INFO L87 Difference]: Start difference. First operand 7865 states and 8981 transitions. Second operand 10 states. [2018-09-19 12:50:34,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:50:34,356 INFO L93 Difference]: Finished difference Result 10260 states and 12952 transitions. [2018-09-19 12:50:34,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:50:34,357 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 310 [2018-09-19 12:50:34,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:50:34,376 INFO L225 Difference]: With dead ends: 10260 [2018-09-19 12:50:34,376 INFO L226 Difference]: Without dead ends: 9430 [2018-09-19 12:50:34,383 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 316 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:50:34,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9430 states. [2018-09-19 12:50:34,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9430 to 9421. [2018-09-19 12:50:34,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9421 states. [2018-09-19 12:50:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9421 states to 9421 states and 10746 transitions. [2018-09-19 12:50:34,521 INFO L78 Accepts]: Start accepts. Automaton has 9421 states and 10746 transitions. Word has length 310 [2018-09-19 12:50:34,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:50:34,522 INFO L480 AbstractCegarLoop]: Abstraction has 9421 states and 10746 transitions. [2018-09-19 12:50:34,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:50:34,522 INFO L276 IsEmpty]: Start isEmpty. Operand 9421 states and 10746 transitions. [2018-09-19 12:50:34,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-09-19 12:50:34,529 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:50:34,529 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:50:34,530 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:50:34,530 INFO L82 PathProgramCache]: Analyzing trace with hash 2141800237, now seen corresponding path program 1 times [2018-09-19 12:50:34,530 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:50:34,530 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-09-19 12:50:34,531 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2444], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:50:34,533 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:50:34,534 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:50:34,636 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:50:34,968 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:50:34,968 INFO L272 AbstractInterpreter]: Visited 158 different actions 620 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:50:35,006 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:50:35,393 INFO L232 lantSequenceWeakener]: Weakened 308 states. On average, predicates are now at 75.67% of their original sizes. [2018-09-19 12:50:35,394 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:50:35,522 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:50:35,522 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:50:35,522 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:50:35,522 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:50:35,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:50:35,523 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:50:35,523 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:50:35,524 INFO L87 Difference]: Start difference. First operand 9421 states and 10746 transitions. Second operand 10 states. [2018-09-19 12:50:45,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:50:45,893 INFO L93 Difference]: Finished difference Result 12642 states and 15598 transitions. [2018-09-19 12:50:45,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:50:45,893 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 311 [2018-09-19 12:50:45,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:50:45,918 INFO L225 Difference]: With dead ends: 12642 [2018-09-19 12:50:45,918 INFO L226 Difference]: Without dead ends: 11011 [2018-09-19 12:50:45,928 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 317 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:50:45,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11011 states. [2018-09-19 12:50:46,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11011 to 10997. [2018-09-19 12:50:46,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10997 states. [2018-09-19 12:50:46,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10997 states to 10997 states and 12557 transitions. [2018-09-19 12:50:46,096 INFO L78 Accepts]: Start accepts. Automaton has 10997 states and 12557 transitions. Word has length 311 [2018-09-19 12:50:46,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:50:46,097 INFO L480 AbstractCegarLoop]: Abstraction has 10997 states and 12557 transitions. [2018-09-19 12:50:46,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:50:46,097 INFO L276 IsEmpty]: Start isEmpty. Operand 10997 states and 12557 transitions. [2018-09-19 12:50:46,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-09-19 12:50:46,104 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:50:46,105 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:50:46,105 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:50:46,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1687887300, now seen corresponding path program 1 times [2018-09-19 12:50:46,105 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:50:46,106 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 321 with the following transitions: [2018-09-19 12:50:46,106 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2496], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:50:46,109 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:50:46,109 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:50:46,211 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:50:46,399 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:50:46,399 INFO L272 AbstractInterpreter]: Visited 154 different actions 453 times. Merged at 7 different actions 13 times. Never widened. Found 3 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:50:46,437 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:50:46,790 INFO L232 lantSequenceWeakener]: Weakened 317 states. On average, predicates are now at 75.65% of their original sizes. [2018-09-19 12:50:46,790 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:50:47,532 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:50:47,533 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:50:47,533 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:50:47,533 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:50:47,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:50:47,534 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:50:47,534 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:50:47,534 INFO L87 Difference]: Start difference. First operand 10997 states and 12557 transitions. Second operand 10 states. [2018-09-19 12:51:01,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:51:01,446 INFO L93 Difference]: Finished difference Result 12605 states and 15663 transitions. [2018-09-19 12:51:01,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:51:01,447 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 320 [2018-09-19 12:51:01,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:51:01,475 INFO L225 Difference]: With dead ends: 12605 [2018-09-19 12:51:01,476 INFO L226 Difference]: Without dead ends: 11775 [2018-09-19 12:51:01,482 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 326 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:51:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11775 states. [2018-09-19 12:51:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11775 to 11771. [2018-09-19 12:51:01,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11771 states. [2018-09-19 12:51:01,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11771 states to 11771 states and 13394 transitions. [2018-09-19 12:51:01,632 INFO L78 Accepts]: Start accepts. Automaton has 11771 states and 13394 transitions. Word has length 320 [2018-09-19 12:51:01,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:51:01,632 INFO L480 AbstractCegarLoop]: Abstraction has 11771 states and 13394 transitions. [2018-09-19 12:51:01,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:51:01,633 INFO L276 IsEmpty]: Start isEmpty. Operand 11771 states and 13394 transitions. [2018-09-19 12:51:01,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-09-19 12:51:01,640 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:01,641 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:51:01,641 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:01,641 INFO L82 PathProgramCache]: Analyzing trace with hash 880248060, now seen corresponding path program 1 times [2018-09-19 12:51:01,642 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:01,642 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 325 with the following transitions: [2018-09-19 12:51:01,642 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2496], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:51:01,645 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:01,645 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:01,753 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:51:02,314 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:02,314 INFO L272 AbstractInterpreter]: Visited 158 different actions 619 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 12:51:02,346 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:02,713 INFO L232 lantSequenceWeakener]: Weakened 321 states. On average, predicates are now at 75.64% of their original sizes. [2018-09-19 12:51:02,714 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:02,819 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:02,820 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:02,820 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:51:02,820 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:02,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:51:02,821 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:51:02,821 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:51:02,821 INFO L87 Difference]: Start difference. First operand 11771 states and 13394 transitions. Second operand 10 states. [2018-09-19 12:51:21,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:51:21,693 INFO L93 Difference]: Finished difference Result 18114 states and 22019 transitions. [2018-09-19 12:51:21,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:51:21,700 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 324 [2018-09-19 12:51:21,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:51:21,729 INFO L225 Difference]: With dead ends: 18114 [2018-09-19 12:51:21,730 INFO L226 Difference]: Without dead ends: 14122 [2018-09-19 12:51:21,741 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 330 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:51:21,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14122 states. [2018-09-19 12:51:21,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14122 to 14110. [2018-09-19 12:51:21,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14110 states. [2018-09-19 12:51:21,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14110 states to 14110 states and 16139 transitions. [2018-09-19 12:51:21,918 INFO L78 Accepts]: Start accepts. Automaton has 14110 states and 16139 transitions. Word has length 324 [2018-09-19 12:51:21,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:51:21,919 INFO L480 AbstractCegarLoop]: Abstraction has 14110 states and 16139 transitions. [2018-09-19 12:51:21,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:51:21,919 INFO L276 IsEmpty]: Start isEmpty. Operand 14110 states and 16139 transitions. [2018-09-19 12:51:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-09-19 12:51:21,929 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:21,929 INFO L376 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 12:51:21,930 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:21,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1076843016, now seen corresponding path program 1 times [2018-09-19 12:51:21,930 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:21,930 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 343 with the following transitions: [2018-09-19 12:51:21,931 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2568], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:51:21,934 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:21,934 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:22,044 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:51:22,432 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:22,432 INFO L272 AbstractInterpreter]: Visited 158 different actions 620 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:51:22,460 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:22,865 INFO L232 lantSequenceWeakener]: Weakened 339 states. On average, predicates are now at 75.6% of their original sizes. [2018-09-19 12:51:22,865 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:22,966 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:22,966 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:22,966 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:51:22,966 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:22,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:51:22,967 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:51:22,967 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:51:22,967 INFO L87 Difference]: Start difference. First operand 14110 states and 16139 transitions. Second operand 10 states. [2018-09-19 12:51:40,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:51:40,422 INFO L93 Difference]: Finished difference Result 16527 states and 20211 transitions. [2018-09-19 12:51:40,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:51:40,422 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 342 [2018-09-19 12:51:40,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:51:40,452 INFO L225 Difference]: With dead ends: 16527 [2018-09-19 12:51:40,452 INFO L226 Difference]: Without dead ends: 15697 [2018-09-19 12:51:40,459 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 348 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:51:40,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15697 states. [2018-09-19 12:51:40,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15697 to 15686. [2018-09-19 12:51:40,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15686 states. [2018-09-19 12:51:40,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15686 states to 15686 states and 17960 transitions. [2018-09-19 12:51:40,645 INFO L78 Accepts]: Start accepts. Automaton has 15686 states and 17960 transitions. Word has length 342 [2018-09-19 12:51:40,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:51:40,645 INFO L480 AbstractCegarLoop]: Abstraction has 15686 states and 17960 transitions. [2018-09-19 12:51:40,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:51:40,646 INFO L276 IsEmpty]: Start isEmpty. Operand 15686 states and 17960 transitions. [2018-09-19 12:51:40,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2018-09-19 12:51:40,654 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:40,654 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-19 12:51:40,655 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:40,655 INFO L82 PathProgramCache]: Analyzing trace with hash 916237094, now seen corresponding path program 1 times [2018-09-19 12:51:40,655 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:40,655 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 381 with the following transitions: [2018-09-19 12:51:40,656 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2416], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:51:40,659 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:40,659 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:40,785 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:51:41,183 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:51:41,183 INFO L272 AbstractInterpreter]: Visited 159 different actions 788 times. Merged at 8 different actions 37 times. Never widened. Found 9 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:51:41,226 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:51:41,668 INFO L232 lantSequenceWeakener]: Weakened 377 states. On average, predicates are now at 75.57% of their original sizes. [2018-09-19 12:51:41,668 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:51:41,842 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:51:41,842 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:51:41,842 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:51:41,842 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:51:41,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:51:41,843 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:51:41,843 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:51:41,843 INFO L87 Difference]: Start difference. First operand 15686 states and 17960 transitions. Second operand 10 states. [2018-09-19 12:51:59,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 12:51:59,481 INFO L93 Difference]: Finished difference Result 17346 states and 21151 transitions. [2018-09-19 12:51:59,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 12:51:59,482 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 380 [2018-09-19 12:51:59,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 12:51:59,511 INFO L225 Difference]: With dead ends: 17346 [2018-09-19 12:51:59,512 INFO L226 Difference]: Without dead ends: 16516 [2018-09-19 12:51:59,520 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 386 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 12:51:59,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16516 states. [2018-09-19 12:51:59,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16516 to 16499. [2018-09-19 12:51:59,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16499 states. [2018-09-19 12:51:59,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16499 states to 16499 states and 18960 transitions. [2018-09-19 12:51:59,720 INFO L78 Accepts]: Start accepts. Automaton has 16499 states and 18960 transitions. Word has length 380 [2018-09-19 12:51:59,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 12:51:59,721 INFO L480 AbstractCegarLoop]: Abstraction has 16499 states and 18960 transitions. [2018-09-19 12:51:59,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 12:51:59,721 INFO L276 IsEmpty]: Start isEmpty. Operand 16499 states and 18960 transitions. [2018-09-19 12:51:59,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2018-09-19 12:51:59,730 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 12:51:59,730 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-19 12:51:59,730 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 12:51:59,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1120781886, now seen corresponding path program 1 times [2018-09-19 12:51:59,731 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 12:51:59,731 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 383 with the following transitions: [2018-09-19 12:51:59,731 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2440], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 12:51:59,734 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-19 12:51:59,735 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 12:51:59,858 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 12:52:00,125 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 12:52:00,125 INFO L272 AbstractInterpreter]: Visited 155 different actions 615 times. Merged at 8 different actions 28 times. Never widened. Found 7 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 12:52:00,154 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 12:52:00,735 INFO L232 lantSequenceWeakener]: Weakened 379 states. On average, predicates are now at 75.56% of their original sizes. [2018-09-19 12:52:00,736 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 12:52:00,837 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 12:52:00,838 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 12:52:00,838 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 12:52:00,838 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 12:52:00,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 12:52:00,839 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 12:52:00,839 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 12:52:00,839 INFO L87 Difference]: Start difference. First operand 16499 states and 18960 transitions. Second operand 10 states. Received shutdown request... [2018-09-19 12:52:04,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 12:52:04,322 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 12:52:04,329 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 12:52:04,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 12:52:04 BoogieIcfgContainer [2018-09-19 12:52:04,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 12:52:04,330 INFO L168 Benchmark]: Toolchain (without parser) took 238612.04 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 861.9 MB. Max. memory is 7.1 GB. [2018-09-19 12:52:04,332 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-09-19 12:52:04,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2232.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-19 12:52:04,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 775.33 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 910.2 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.4 MB. Max. memory is 7.1 GB. [2018-09-19 12:52:04,334 INFO L168 Benchmark]: Boogie Preprocessor took 314.63 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:52:04,335 INFO L168 Benchmark]: RCFGBuilder took 10384.76 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 651.3 MB). Peak memory consumption was 651.3 MB. Max. memory is 7.1 GB. [2018-09-19 12:52:04,336 INFO L168 Benchmark]: TraceAbstraction took 224898.31 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.6 GB in the beginning and 3.1 GB in the end (delta: -1.4 GB). Peak memory consumption was 187.6 MB. Max. memory is 7.1 GB. [2018-09-19 12:52:04,340 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2232.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 775.33 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 910.2 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 314.63 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10384.76 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.6 GB in the end (delta: 651.3 MB). Peak memory consumption was 651.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224898.31 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.6 GB in the beginning and 3.1 GB in the end (delta: -1.4 GB). Peak memory consumption was 187.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 201]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 201). Cancelled while BasicCegarLoop was constructing difference of abstraction (16499states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (1955 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 224.8s OverallTime, 14 OverallIterations, 4 TraceHistogramMax, 206.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10537 SDtfs, 31183 SDslu, 7463 SDs, 0 SdLazy, 136806 SolverSat, 9187 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 175.8s Time, PredicateUnifierStatistics: 28 DeclaredPredicates, 3990 GetRequests, 3791 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16499occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.7s AbstIntTime, 14 AbstIntIterations, 14 AbstIntStrong, 0.9977701116566177 AbsIntWeakeningRatio, 0.09233136701718389 AbsIntAvgWeakeningVarsNumRemoved, 26.244165170556553 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 101 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label31_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_12-52-04-354.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label31_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_12-52-04-354.csv Completed graceful shutdown