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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label21_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:24:47,825 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:24:47,827 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:24:47,839 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:24:47,840 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:24:47,841 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:24:47,842 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:24:47,845 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:24:47,847 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:24:47,848 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:24:47,849 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:24:47,849 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:24:47,850 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:24:47,851 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:24:47,852 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:24:47,853 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:24:47,854 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:24:47,857 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:24:47,861 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:24:47,868 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:24:47,869 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:24:47,870 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:24:47,876 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:24:47,876 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:24:47,876 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:24:47,878 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:24:47,882 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:24:47,883 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:24:47,884 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:24:47,888 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:24:47,888 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:24:47,889 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 04:24:47,889 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 04:24:47,889 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 04:24:47,892 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 04:24:47,894 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 04:24:47,894 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 04:24:47,922 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:24:47,922 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:24:47,923 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:24:47,923 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:24:47,924 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:24:47,924 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:24:47,924 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:24:47,924 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:24:47,924 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:24:47,925 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:24:47,925 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:24:47,925 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:24:47,926 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:24:47,926 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:24:47,926 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:24:47,926 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:24:47,926 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:24:47,927 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:24:47,927 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:24:47,927 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:24:47,927 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:24:47,927 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:24:47,928 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:24:47,928 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:24:47,928 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:24:47,928 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:24:47,928 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:24:47,929 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:24:47,929 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:24:47,929 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:24:47,929 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:24:47,929 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:24:47,930 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:24:47,930 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:24:47,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:24:47,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:24:47,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:24:47,999 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:24:47,999 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:24:48,000 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label21_true-unreach-call.c [2018-09-19 04:24:48,387 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec427cdf9/c05190829b0e4a729224186e1b7b400b/FLAGed026bfd4 [2018-09-19 04:24:48,755 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:24:48,756 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label21_true-unreach-call.c [2018-09-19 04:24:48,782 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec427cdf9/c05190829b0e4a729224186e1b7b400b/FLAGed026bfd4 [2018-09-19 04:24:48,811 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec427cdf9/c05190829b0e4a729224186e1b7b400b [2018-09-19 04:24:48,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:24:48,833 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:24:48,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:24:48,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:24:48,844 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:24:48,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:24:48" (1/1) ... [2018-09-19 04:24:48,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fb691d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:48, skipping insertion in model container [2018-09-19 04:24:48,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:24:48" (1/1) ... [2018-09-19 04:24:48,865 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:24:49,682 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:24:49,701 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:24:49,939 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:24:50,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50 WrapperNode [2018-09-19 04:24:50,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:24:50,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:24:50,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:24:50,046 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:24:50,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50" (1/1) ... [2018-09-19 04:24:50,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50" (1/1) ... [2018-09-19 04:24:50,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:24:50,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:24:50,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:24:50,243 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:24:50,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50" (1/1) ... [2018-09-19 04:24:50,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50" (1/1) ... [2018-09-19 04:24:50,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50" (1/1) ... [2018-09-19 04:24:50,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50" (1/1) ... [2018-09-19 04:24:50,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50" (1/1) ... [2018-09-19 04:24:50,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50" (1/1) ... [2018-09-19 04:24:50,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50" (1/1) ... [2018-09-19 04:24:50,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:24:50,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:24:50,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:24:50,667 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:24:50,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50" (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 04:24:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:24:50,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:24:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:24:50,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:24:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:24:50,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:24:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:24:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:24:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:24:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:24:56,878 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:24:56,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:24:56 BoogieIcfgContainer [2018-09-19 04:24:56,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:24:56,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:24:56,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:24:56,885 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:24:56,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:24:48" (1/3) ... [2018-09-19 04:24:56,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a388b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:24:56, skipping insertion in model container [2018-09-19 04:24:56,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:24:50" (2/3) ... [2018-09-19 04:24:56,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a388b8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:24:56, skipping insertion in model container [2018-09-19 04:24:56,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:24:56" (3/3) ... [2018-09-19 04:24:56,889 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label21_true-unreach-call.c [2018-09-19 04:24:56,900 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:24:56,909 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:24:56,969 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:24:56,970 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:24:56,970 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:24:56,970 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:24:56,970 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:24:56,970 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:24:56,970 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:24:56,971 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:24:56,971 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:24:57,004 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 04:24:57,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-19 04:24:57,016 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:24:57,018 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] [2018-09-19 04:24:57,018 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:24:57,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1498004389, now seen corresponding path program 1 times [2018-09-19 04:24:57,025 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:24:57,026 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 46 with the following transitions: [2018-09-19 04:24:57,029 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-19 04:24:57,089 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:24:57,090 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:24:58,277 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:24:58,280 INFO L272 AbstractInterpreter]: Visited 44 different actions 44 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:24:58,300 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:24:59,030 INFO L232 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 80.29% of their original sizes. [2018-09-19 04:24:59,030 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:24:59,344 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:24:59,346 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:24:59,346 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:24:59,346 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:24:59,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:24:59,360 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:24:59,361 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:24:59,364 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 04:25:09,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:25:09,604 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 04:25:09,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:25:09,606 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 45 [2018-09-19 04:25:09,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:25:09,628 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 04:25:09,629 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 04:25:09,638 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 44 GetRequests, 40 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 04:25:09,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 04:25:09,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 04:25:09,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 04:25:09,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 04:25:09,749 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 45 [2018-09-19 04:25:09,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:25:09,750 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 04:25:09,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:25:09,750 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 04:25:09,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-09-19 04:25:09,757 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:25:09,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:09,758 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:25:09,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1376325096, now seen corresponding path program 1 times [2018-09-19 04:25:09,759 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:25:09,759 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-09-19 04:25:09,760 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:25:09,768 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:25:09,768 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:25:12,268 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:25:16,188 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:25:16,188 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:25:16,196 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:25:17,363 INFO L232 lantSequenceWeakener]: Weakened 135 states. On average, predicates are now at 78.3% of their original sizes. [2018-09-19 04:25:17,363 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:25:18,435 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:25:18,435 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:25:18,436 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:25:18,436 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:25:18,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:25:18,438 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:25:18,438 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:25:18,438 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-19 04:25:37,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:25:37,412 INFO L93 Difference]: Finished difference Result 1772 states and 3024 transitions. [2018-09-19 04:25:37,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:25:37,416 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 137 [2018-09-19 04:25:37,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:25:37,428 INFO L225 Difference]: With dead ends: 1772 [2018-09-19 04:25:37,429 INFO L226 Difference]: Without dead ends: 1372 [2018-09-19 04:25:37,433 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:25:37,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2018-09-19 04:25:37,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1094. [2018-09-19 04:25:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-09-19 04:25:37,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1441 transitions. [2018-09-19 04:25:37,524 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1441 transitions. Word has length 137 [2018-09-19 04:25:37,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:25:37,527 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1441 transitions. [2018-09-19 04:25:37,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:25:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1441 transitions. [2018-09-19 04:25:37,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-09-19 04:25:37,538 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:25:37,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:37,539 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:25:37,539 INFO L82 PathProgramCache]: Analyzing trace with hash 350827680, now seen corresponding path program 1 times [2018-09-19 04:25:37,539 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:25:37,539 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 174 with the following transitions: [2018-09-19 04:25:37,540 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:25:37,549 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:25:37,549 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:25:41,443 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:25:47,657 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:25:47,658 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:25:47,676 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:25:48,938 INFO L232 lantSequenceWeakener]: Weakened 171 states. On average, predicates are now at 78.09% of their original sizes. [2018-09-19 04:25:48,938 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:25:49,459 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:25:49,460 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:25:49,460 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:25:49,460 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:25:49,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:25:49,462 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:25:49,462 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:25:49,463 INFO L87 Difference]: Start difference. First operand 1094 states and 1441 transitions. Second operand 11 states. [2018-09-19 04:26:05,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:26:05,607 INFO L93 Difference]: Finished difference Result 2749 states and 4050 transitions. [2018-09-19 04:26:05,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:26:05,608 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 173 [2018-09-19 04:26:05,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:26:05,623 INFO L225 Difference]: With dead ends: 2749 [2018-09-19 04:26:05,623 INFO L226 Difference]: Without dead ends: 1999 [2018-09-19 04:26:05,627 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 181 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:26:05,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2018-09-19 04:26:05,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1450. [2018-09-19 04:26:05,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-09-19 04:26:05,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1815 transitions. [2018-09-19 04:26:05,706 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1815 transitions. Word has length 173 [2018-09-19 04:26:05,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:26:05,706 INFO L480 AbstractCegarLoop]: Abstraction has 1450 states and 1815 transitions. [2018-09-19 04:26:05,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:26:05,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1815 transitions. [2018-09-19 04:26:05,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-09-19 04:26:05,722 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:26:05,722 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:05,722 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:26:05,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1139211392, now seen corresponding path program 1 times [2018-09-19 04:26:05,723 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:26:05,723 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 286 with the following transitions: [2018-09-19 04:26:05,724 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:26:05,736 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:26:05,736 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:26:17,437 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:26:17,437 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:26:17,443 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:26:19,149 INFO L232 lantSequenceWeakener]: Weakened 283 states. On average, predicates are now at 77.76% of their original sizes. [2018-09-19 04:26:19,149 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:26:19,549 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:26:19,550 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:26:19,550 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:26:19,550 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:26:19,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:26:19,551 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:26:19,551 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:26:19,552 INFO L87 Difference]: Start difference. First operand 1450 states and 1815 transitions. Second operand 13 states. [2018-09-19 04:26:27,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:26:27,996 INFO L93 Difference]: Finished difference Result 2897 states and 3954 transitions. [2018-09-19 04:26:27,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:26:27,998 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 285 [2018-09-19 04:26:28,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:26:28,009 INFO L225 Difference]: With dead ends: 2897 [2018-09-19 04:26:28,010 INFO L226 Difference]: Without dead ends: 1793 [2018-09-19 04:26:28,014 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 295 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:26:28,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2018-09-19 04:26:28,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1790. [2018-09-19 04:26:28,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2018-09-19 04:26:28,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2172 transitions. [2018-09-19 04:26:28,072 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2172 transitions. Word has length 285 [2018-09-19 04:26:28,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:26:28,072 INFO L480 AbstractCegarLoop]: Abstraction has 1790 states and 2172 transitions. [2018-09-19 04:26:28,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:26:28,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2172 transitions. [2018-09-19 04:26:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2018-09-19 04:26:28,078 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:26:28,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:28,079 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:26:28,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1978326288, now seen corresponding path program 1 times [2018-09-19 04:26:28,079 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:26:28,079 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 294 with the following transitions: [2018-09-19 04:26:28,080 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:26:28,087 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:26:28,087 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:26:44,345 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:26:44,345 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:26:44,349 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:26:45,925 INFO L232 lantSequenceWeakener]: Weakened 291 states. On average, predicates are now at 77.75% of their original sizes. [2018-09-19 04:26:45,925 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:26:46,397 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:26:46,397 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:26:46,398 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:26:46,398 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:26:46,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:26:46,399 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:26:46,399 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:26:46,399 INFO L87 Difference]: Start difference. First operand 1790 states and 2172 transitions. Second operand 14 states. [2018-09-19 04:27:03,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:27:03,741 INFO L93 Difference]: Finished difference Result 3242 states and 4318 transitions. [2018-09-19 04:27:03,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 04:27:03,743 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 293 [2018-09-19 04:27:03,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:27:03,756 INFO L225 Difference]: With dead ends: 3242 [2018-09-19 04:27:03,756 INFO L226 Difference]: Without dead ends: 2138 [2018-09-19 04:27:03,760 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 305 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:27:03,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2018-09-19 04:27:03,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2132. [2018-09-19 04:27:03,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2018-09-19 04:27:03,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2533 transitions. [2018-09-19 04:27:03,842 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2533 transitions. Word has length 293 [2018-09-19 04:27:03,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:27:03,844 INFO L480 AbstractCegarLoop]: Abstraction has 2132 states and 2533 transitions. [2018-09-19 04:27:03,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:27:03,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2533 transitions. [2018-09-19 04:27:03,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2018-09-19 04:27:03,853 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:27:03,853 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:03,854 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:27:03,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1170529219, now seen corresponding path program 1 times [2018-09-19 04:27:03,854 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:27:03,854 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 378 with the following transitions: [2018-09-19 04:27:03,855 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:27:03,861 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:27:03,862 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:27:05,489 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:27:26,680 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:27:26,680 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:27:26,687 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:27:29,084 INFO L232 lantSequenceWeakener]: Weakened 375 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-19 04:27:29,084 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:27:29,387 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:27:29,388 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:27:29,388 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:27:29,388 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:27:29,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:27:29,389 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:27:29,389 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:27:29,389 INFO L87 Difference]: Start difference. First operand 2132 states and 2533 transitions. Second operand 11 states. [2018-09-19 04:27:51,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:27:51,028 INFO L93 Difference]: Finished difference Result 4495 states and 5901 transitions. [2018-09-19 04:27:51,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 04:27:51,039 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 377 [2018-09-19 04:27:51,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:27:51,053 INFO L225 Difference]: With dead ends: 4495 [2018-09-19 04:27:51,054 INFO L226 Difference]: Without dead ends: 3049 [2018-09-19 04:27:51,059 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 387 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-09-19 04:27:51,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2018-09-19 04:27:51,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 2489. [2018-09-19 04:27:51,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2018-09-19 04:27:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2917 transitions. [2018-09-19 04:27:51,146 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2917 transitions. Word has length 377 [2018-09-19 04:27:51,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:27:51,147 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 2917 transitions. [2018-09-19 04:27:51,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:27:51,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2917 transitions. [2018-09-19 04:27:51,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2018-09-19 04:27:51,157 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:27:51,158 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:27:51,158 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:27:51,158 INFO L82 PathProgramCache]: Analyzing trace with hash 2142357532, now seen corresponding path program 1 times [2018-09-19 04:27:51,159 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:27:51,159 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 395 with the following transitions: [2018-09-19 04:27:51,160 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:27:51,167 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:27:51,167 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:27:59,147 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:28:14,504 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:28:14,504 INFO L272 AbstractInterpreter]: Visited 256 different actions 1013 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:28:14,511 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:28:16,611 INFO L232 lantSequenceWeakener]: Weakened 392 states. On average, predicates are now at 77.65% of their original sizes. [2018-09-19 04:28:16,612 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:28:17,059 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:28:17,060 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:28:17,060 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:28:17,060 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:28:17,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:28:17,061 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:28:17,061 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:28:17,061 INFO L87 Difference]: Start difference. First operand 2489 states and 2917 transitions. Second operand 13 states. [2018-09-19 04:28:29,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:28:29,122 INFO L93 Difference]: Finished difference Result 4647 states and 5816 transitions. [2018-09-19 04:28:29,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:28:29,122 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 394 [2018-09-19 04:28:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:28:29,137 INFO L225 Difference]: With dead ends: 4647 [2018-09-19 04:28:29,137 INFO L226 Difference]: Without dead ends: 2844 [2018-09-19 04:28:29,143 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 404 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:28:29,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2018-09-19 04:28:29,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2833. [2018-09-19 04:28:29,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2018-09-19 04:28:29,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3297 transitions. [2018-09-19 04:28:29,224 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3297 transitions. Word has length 394 [2018-09-19 04:28:29,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:28:29,225 INFO L480 AbstractCegarLoop]: Abstraction has 2833 states and 3297 transitions. [2018-09-19 04:28:29,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:28:29,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3297 transitions. [2018-09-19 04:28:29,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-09-19 04:28:29,236 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:28:29,237 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:28:29,237 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:28:29,237 INFO L82 PathProgramCache]: Analyzing trace with hash -495814971, now seen corresponding path program 1 times [2018-09-19 04:28:29,237 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:28:29,238 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 414 with the following transitions: [2018-09-19 04:28:29,238 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [439], [441], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:28:29,244 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:28:29,244 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:28:31,558 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:28:51,038 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:28:51,039 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:28:51,046 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:28:53,152 INFO L232 lantSequenceWeakener]: Weakened 411 states. On average, predicates are now at 77.63% of their original sizes. [2018-09-19 04:28:53,152 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:28:53,533 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:28:53,534 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:28:53,534 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:28:53,534 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:28:53,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:28:53,535 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:28:53,535 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:28:53,536 INFO L87 Difference]: Start difference. First operand 2833 states and 3297 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 04:28:59,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 04:28:59,983 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:28:59,989 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:28:59,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:28:59 BoogieIcfgContainer [2018-09-19 04:28:59,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:28:59,991 INFO L168 Benchmark]: Toolchain (without parser) took 251164.32 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -147.3 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-19 04:28:59,994 INFO L168 Benchmark]: CDTParser took 0.22 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 04:28:59,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1211.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. [2018-09-19 04:28:59,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 196.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 04:28:59,996 INFO L168 Benchmark]: Boogie Preprocessor took 424.04 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 825.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -960.3 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2018-09-19 04:28:59,999 INFO L168 Benchmark]: RCFGBuilder took 6213.31 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 243.3 MB). Peak memory consumption was 243.3 MB. Max. memory is 7.1 GB. [2018-09-19 04:29:00,000 INFO L168 Benchmark]: TraceAbstraction took 243108.86 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 440.1 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-09-19 04:29:00,008 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1211.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 196.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 424.04 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 825.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -960.3 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6213.31 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 243.3 MB). Peak memory consumption was 243.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 243108.86 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 440.1 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 121). Cancelled while BasicCegarLoop was constructing difference of abstraction (2833states) and FLOYD_HOARE automaton (currently 15 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (1264 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 243.0s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 111.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2815 SDtfs, 14729 SDslu, 3053 SDs, 0 SdLazy, 33846 SolverSat, 3347 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 99.2s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2182 GetRequests, 2035 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2833occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 113.8s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9962496040871328 AbsIntWeakeningRatio, 0.0815552394499763 AbsIntAvgWeakeningVarsNumRemoved, 919.9829302987198 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 1409 StatesRemovedByMinimization, 7 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/Problem16_label21_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-29-00-026.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label21_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-29-00-026.csv Completed graceful shutdown