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/Problem10_label31_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 03:27:38,929 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 03:27:38,931 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 03:27:38,949 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 03:27:38,950 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 03:27:38,952 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 03:27:38,953 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 03:27:38,956 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 03:27:38,958 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 03:27:38,960 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 03:27:38,961 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 03:27:38,963 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 03:27:38,964 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 03:27:38,965 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 03:27:38,969 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 03:27:38,970 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 03:27:38,971 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 03:27:38,975 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 03:27:38,977 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 03:27:38,979 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 03:27:38,980 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 03:27:38,981 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 03:27:38,984 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 03:27:38,984 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 03:27:38,984 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 03:27:38,985 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 03:27:38,986 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 03:27:38,987 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 03:27:38,988 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 03:27:38,989 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 03:27:38,990 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 03:27:38,990 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 03:27:38,991 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 03:27:38,991 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 03:27:38,992 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 03:27:38,993 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 03:27:38,993 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 03:27:39,010 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 03:27:39,010 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 03:27:39,011 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 03:27:39,011 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 03:27:39,011 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 03:27:39,012 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 03:27:39,012 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 03:27:39,012 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 03:27:39,012 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 03:27:39,013 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 03:27:39,013 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 03:27:39,013 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 03:27:39,014 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 03:27:39,014 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 03:27:39,014 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 03:27:39,014 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 03:27:39,015 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 03:27:39,015 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 03:27:39,015 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 03:27:39,015 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 03:27:39,016 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 03:27:39,016 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 03:27:39,016 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 03:27:39,016 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 03:27:39,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:27:39,017 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 03:27:39,017 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 03:27:39,017 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 03:27:39,017 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 03:27:39,017 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 03:27:39,018 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 03:27:39,018 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 03:27:39,018 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 03:27:39,018 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 03:27:39,076 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 03:27:39,094 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 03:27:39,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 03:27:39,102 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 03:27:39,103 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 03:27:39,103 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label31_true-unreach-call.c [2018-09-19 03:27:39,490 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ebd4391/d3c9527fed1a4925b2d56ca7ff9f7294/FLAGc58b7c59b [2018-09-19 03:27:39,758 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 03:27:39,762 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label31_true-unreach-call.c [2018-09-19 03:27:39,795 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ebd4391/d3c9527fed1a4925b2d56ca7ff9f7294/FLAGc58b7c59b [2018-09-19 03:27:39,823 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6ebd4391/d3c9527fed1a4925b2d56ca7ff9f7294 [2018-09-19 03:27:39,839 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 03:27:39,843 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 03:27:39,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 03:27:39,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 03:27:39,856 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 03:27:39,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:27:39" (1/1) ... [2018-09-19 03:27:39,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c844d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:39, skipping insertion in model container [2018-09-19 03:27:39,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:27:39" (1/1) ... [2018-09-19 03:27:39,874 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 03:27:40,408 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:27:40,429 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 03:27:40,569 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:27:40,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40 WrapperNode [2018-09-19 03:27:40,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 03:27:40,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 03:27:40,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 03:27:40,626 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 03:27:40,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40" (1/1) ... [2018-09-19 03:27:40,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40" (1/1) ... [2018-09-19 03:27:40,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 03:27:40,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 03:27:40,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 03:27:40,738 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 03:27:40,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40" (1/1) ... [2018-09-19 03:27:40,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40" (1/1) ... [2018-09-19 03:27:40,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40" (1/1) ... [2018-09-19 03:27:40,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40" (1/1) ... [2018-09-19 03:27:40,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40" (1/1) ... [2018-09-19 03:27:40,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40" (1/1) ... [2018-09-19 03:27:40,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40" (1/1) ... [2018-09-19 03:27:41,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 03:27:41,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 03:27:41,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 03:27:41,006 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 03:27:41,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40" (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 03:27:41,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 03:27:41,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 03:27:41,103 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 03:27:41,103 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 03:27:41,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 03:27:41,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 03:27:41,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 03:27:41,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 03:27:44,641 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 03:27:44,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:27:44 BoogieIcfgContainer [2018-09-19 03:27:44,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 03:27:44,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 03:27:44,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 03:27:44,648 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 03:27:44,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:27:39" (1/3) ... [2018-09-19 03:27:44,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf17ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:27:44, skipping insertion in model container [2018-09-19 03:27:44,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:27:40" (2/3) ... [2018-09-19 03:27:44,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf17ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:27:44, skipping insertion in model container [2018-09-19 03:27:44,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:27:44" (3/3) ... [2018-09-19 03:27:44,653 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label31_true-unreach-call.c [2018-09-19 03:27:44,664 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 03:27:44,674 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 03:27:44,731 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 03:27:44,732 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 03:27:44,732 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 03:27:44,733 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 03:27:44,733 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 03:27:44,733 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 03:27:44,733 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 03:27:44,734 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 03:27:44,734 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 03:27:44,762 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 03:27:44,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 03:27:44,772 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:44,774 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] [2018-09-19 03:27:44,775 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:44,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1318273196, now seen corresponding path program 1 times [2018-09-19 03:27:44,784 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:44,785 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 51 with the following transitions: [2018-09-19 03:27:44,788 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 03:27:44,854 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:44,855 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:46,421 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:46,423 INFO L272 AbstractInterpreter]: Visited 49 different actions 49 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 03:27:46,441 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:47,069 INFO L232 lantSequenceWeakener]: Weakened 48 states. On average, predicates are now at 75.64% of their original sizes. [2018-09-19 03:27:47,069 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:47,381 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:47,383 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:47,383 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 03:27:47,383 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:47,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 03:27:47,396 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 03:27:47,397 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:27:47,399 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 03:27:50,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:27:50,834 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 03:27:50,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 03:27:50,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2018-09-19 03:27:50,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:27:50,862 INFO L225 Difference]: With dead ends: 576 [2018-09-19 03:27:50,862 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 03:27:50,876 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 49 GetRequests, 45 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 03:27:50,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 03:27:50,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 03:27:50,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 03:27:50,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 03:27:50,960 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 50 [2018-09-19 03:27:50,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:27:50,961 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 03:27:50,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 03:27:50,963 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 03:27:50,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-09-19 03:27:50,973 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:27:50,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:27:50,973 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:27:50,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1922972547, now seen corresponding path program 1 times [2018-09-19 03:27:50,974 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:27:50,974 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 122 with the following transitions: [2018-09-19 03:27:50,976 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:27:50,987 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:27:50,988 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:27:52,603 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:27:56,012 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:27:56,012 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 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 03:27:56,025 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:27:57,017 INFO L232 lantSequenceWeakener]: Weakened 119 states. On average, predicates are now at 73.98% of their original sizes. [2018-09-19 03:27:57,018 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:27:57,525 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:27:57,525 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:27:57,525 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:27:57,526 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:27:57,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:27:57,527 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:27:57,527 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:27:57,528 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 03:28:04,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:04,907 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 03:28:04,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 03:28:04,908 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2018-09-19 03:28:04,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:04,914 INFO L225 Difference]: With dead ends: 717 [2018-09-19 03:28:04,914 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 03:28:04,917 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 127 GetRequests, 112 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 03:28:04,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 03:28:04,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 03:28:04,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 03:28:04,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 659 transitions. [2018-09-19 03:28:04,956 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 659 transitions. Word has length 121 [2018-09-19 03:28:04,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:04,957 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 659 transitions. [2018-09-19 03:28:04,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:28:04,957 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 659 transitions. [2018-09-19 03:28:04,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-09-19 03:28:04,961 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:04,961 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:28:04,962 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:04,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1870443208, now seen corresponding path program 1 times [2018-09-19 03:28:04,962 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:04,962 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-09-19 03:28:04,963 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:04,968 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:04,968 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:09,972 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:11,790 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:11,791 INFO L272 AbstractInterpreter]: Visited 87 different actions 248 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 03:28:11,798 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:12,785 INFO L232 lantSequenceWeakener]: Weakened 128 states. On average, predicates are now at 73.89% of their original sizes. [2018-09-19 03:28:12,786 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:13,781 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:13,782 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:13,782 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:28:13,782 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:13,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:28:13,783 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:28:13,783 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:28:13,783 INFO L87 Difference]: Start difference. First operand 505 states and 659 transitions. Second operand 13 states. [2018-09-19 03:28:25,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:25,279 INFO L93 Difference]: Finished difference Result 1333 states and 2076 transitions. [2018-09-19 03:28:25,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 03:28:25,282 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 130 [2018-09-19 03:28:25,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:25,290 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 03:28:25,290 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 03:28:25,292 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 144 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 03:28:25,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 03:28:25,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 03:28:25,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 03:28:25,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 943 transitions. [2018-09-19 03:28:25,338 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 943 transitions. Word has length 130 [2018-09-19 03:28:25,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:25,339 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 943 transitions. [2018-09-19 03:28:25,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:28:25,339 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 943 transitions. [2018-09-19 03:28:25,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-09-19 03:28:25,344 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:25,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:28:25,344 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:25,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1376120512, now seen corresponding path program 1 times [2018-09-19 03:28:25,345 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:25,345 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 167 with the following transitions: [2018-09-19 03:28:25,346 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:25,351 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:25,351 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:28,441 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:28:36,187 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:36,187 INFO L272 AbstractInterpreter]: Visited 123 different actions 356 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 03:28:36,191 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:28:37,237 INFO L232 lantSequenceWeakener]: Weakened 164 states. On average, predicates are now at 73.64% of their original sizes. [2018-09-19 03:28:37,237 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:28:37,742 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:28:37,743 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:28:37,743 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:28:37,743 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:28:37,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:28:37,744 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:28:37,744 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:28:37,745 INFO L87 Difference]: Start difference. First operand 762 states and 943 transitions. Second operand 12 states. [2018-09-19 03:28:47,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:28:47,769 INFO L93 Difference]: Finished difference Result 1677 states and 2200 transitions. [2018-09-19 03:28:47,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:28:47,770 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 166 [2018-09-19 03:28:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:28:47,777 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 03:28:47,777 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 03:28:47,780 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 174 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 03:28:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 03:28:47,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 03:28:47,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 03:28:47,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1277 transitions. [2018-09-19 03:28:47,822 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1277 transitions. Word has length 166 [2018-09-19 03:28:47,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:28:47,823 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1277 transitions. [2018-09-19 03:28:47,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:28:47,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1277 transitions. [2018-09-19 03:28:47,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-09-19 03:28:47,827 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:28:47,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:28:47,828 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:28:47,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1061552381, now seen corresponding path program 1 times [2018-09-19 03:28:47,828 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:28:47,828 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-09-19 03:28:47,829 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:28:47,836 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:28:47,836 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:28:59,470 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:28:59,471 INFO L272 AbstractInterpreter]: Visited 142 different actions 413 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 03:28:59,477 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:00,518 INFO L232 lantSequenceWeakener]: Weakened 183 states. On average, predicates are now at 73.54% of their original sizes. [2018-09-19 03:29:00,519 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:00,888 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:00,888 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:00,888 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:29:00,888 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:00,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:29:00,889 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:29:00,889 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:29:00,889 INFO L87 Difference]: Start difference. First operand 1056 states and 1277 transitions. Second operand 12 states. [2018-09-19 03:29:05,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:29:05,278 INFO L93 Difference]: Finished difference Result 2268 states and 2879 transitions. [2018-09-19 03:29:05,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 03:29:05,282 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 185 [2018-09-19 03:29:05,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:29:05,291 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 03:29:05,292 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 03:29:05,295 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 194 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 03:29:05,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 03:29:05,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 03:29:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 03:29:05,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1605 transitions. [2018-09-19 03:29:05,350 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1605 transitions. Word has length 185 [2018-09-19 03:29:05,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:29:05,350 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1605 transitions. [2018-09-19 03:29:05,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:29:05,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1605 transitions. [2018-09-19 03:29:05,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-09-19 03:29:05,354 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:29:05,354 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, 2, 2, 2, 2, 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] [2018-09-19 03:29:05,354 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:29:05,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1068683329, now seen corresponding path program 1 times [2018-09-19 03:29:05,355 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:29:05,355 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-09-19 03:29:05,356 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:29:05,359 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:29:05,359 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:06,790 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:12,763 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:12,763 INFO L272 AbstractInterpreter]: Visited 84 different actions 323 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:29:12,771 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:13,933 INFO L232 lantSequenceWeakener]: Weakened 195 states. On average, predicates are now at 73.54% of their original sizes. [2018-09-19 03:29:13,934 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:14,221 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:14,221 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:14,221 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:29:14,221 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:14,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:29:14,222 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:29:14,222 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:29:14,223 INFO L87 Difference]: Start difference. First operand 1352 states and 1605 transitions. Second operand 10 states. [2018-09-19 03:29:18,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:29:18,760 INFO L93 Difference]: Finished difference Result 2719 states and 3368 transitions. [2018-09-19 03:29:18,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:29:18,762 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 197 [2018-09-19 03:29:18,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:29:18,775 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 03:29:18,776 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 03:29:18,779 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 03:29:18,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 03:29:18,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 03:29:18,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 03:29:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1772 transitions. [2018-09-19 03:29:18,851 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1772 transitions. Word has length 197 [2018-09-19 03:29:18,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:29:18,852 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1772 transitions. [2018-09-19 03:29:18,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:29:18,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1772 transitions. [2018-09-19 03:29:18,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-19 03:29:18,857 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:29:18,858 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:29:18,858 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:29:18,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1376531168, now seen corresponding path program 1 times [2018-09-19 03:29:18,858 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:29:18,859 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-09-19 03:29:18,859 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:29:18,865 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:29:18,866 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:22,660 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:27,288 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:27,288 INFO L272 AbstractInterpreter]: Visited 88 different actions 341 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 03:29:27,294 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:28,520 INFO L232 lantSequenceWeakener]: Weakened 206 states. On average, predicates are now at 73.49% of their original sizes. [2018-09-19 03:29:28,520 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:28,962 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:28,962 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:28,962 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:29:28,962 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:28,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:29:28,963 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:29:28,963 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:29:28,963 INFO L87 Difference]: Start difference. First operand 1503 states and 1772 transitions. Second operand 13 states. [2018-09-19 03:29:35,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:29:35,427 INFO L93 Difference]: Finished difference Result 3686 states and 4637 transitions. [2018-09-19 03:29:35,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:29:35,440 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 208 [2018-09-19 03:29:35,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:29:35,453 INFO L225 Difference]: With dead ends: 3686 [2018-09-19 03:29:35,453 INFO L226 Difference]: Without dead ends: 2337 [2018-09-19 03:29:35,458 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 220 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:29:35,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2018-09-19 03:29:35,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2189. [2018-09-19 03:29:35,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2018-09-19 03:29:35,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2615 transitions. [2018-09-19 03:29:35,550 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2615 transitions. Word has length 208 [2018-09-19 03:29:35,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:29:35,551 INFO L480 AbstractCegarLoop]: Abstraction has 2189 states and 2615 transitions. [2018-09-19 03:29:35,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:29:35,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2615 transitions. [2018-09-19 03:29:35,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-09-19 03:29:35,556 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:29:35,557 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:29:35,557 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:29:35,557 INFO L82 PathProgramCache]: Analyzing trace with hash 507509676, now seen corresponding path program 1 times [2018-09-19 03:29:35,557 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:29:35,558 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-09-19 03:29:35,558 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:29:35,561 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:29:35,562 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:29:39,931 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:29:55,418 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:29:55,418 INFO L272 AbstractInterpreter]: Visited 96 different actions 555 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:29:55,429 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:29:57,007 INFO L232 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 73.46% of their original sizes. [2018-09-19 03:29:57,008 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:29:57,472 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:29:57,472 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:29:57,472 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:29:57,472 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:29:57,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:29:57,473 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:29:57,473 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:29:57,473 INFO L87 Difference]: Start difference. First operand 2189 states and 2615 transitions. Second operand 13 states. [2018-09-19 03:30:08,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:30:08,291 INFO L93 Difference]: Finished difference Result 5360 states and 6747 transitions. [2018-09-19 03:30:08,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:30:08,292 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2018-09-19 03:30:08,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:30:08,307 INFO L225 Difference]: With dead ends: 5360 [2018-09-19 03:30:08,307 INFO L226 Difference]: Without dead ends: 3325 [2018-09-19 03:30:08,314 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:30:08,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2018-09-19 03:30:08,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 3019. [2018-09-19 03:30:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3019 states. [2018-09-19 03:30:08,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 3715 transitions. [2018-09-19 03:30:08,423 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 3715 transitions. Word has length 218 [2018-09-19 03:30:08,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:30:08,427 INFO L480 AbstractCegarLoop]: Abstraction has 3019 states and 3715 transitions. [2018-09-19 03:30:08,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:30:08,427 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 3715 transitions. [2018-09-19 03:30:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-09-19 03:30:08,434 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:30:08,434 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, 2, 2, 2, 2, 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 03:30:08,434 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:30:08,435 INFO L82 PathProgramCache]: Analyzing trace with hash 456012672, now seen corresponding path program 1 times [2018-09-19 03:30:08,435 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:30:08,435 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-09-19 03:30:08,436 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:30:08,439 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:30:08,439 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:30:09,889 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:30:20,552 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:30:20,552 INFO L272 AbstractInterpreter]: Visited 121 different actions 471 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:30:20,560 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:30:21,880 INFO L232 lantSequenceWeakener]: Weakened 232 states. On average, predicates are now at 73.41% of their original sizes. [2018-09-19 03:30:21,881 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:30:22,374 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:30:22,374 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:30:22,374 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:30:22,375 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:30:22,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:30:22,375 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:30:22,375 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:30:22,376 INFO L87 Difference]: Start difference. First operand 3019 states and 3715 transitions. Second operand 13 states. [2018-09-19 03:30:33,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:30:33,870 INFO L93 Difference]: Finished difference Result 6300 states and 8063 transitions. [2018-09-19 03:30:33,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:30:33,872 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 234 [2018-09-19 03:30:33,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:30:33,884 INFO L225 Difference]: With dead ends: 6300 [2018-09-19 03:30:33,884 INFO L226 Difference]: Without dead ends: 3435 [2018-09-19 03:30:33,892 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 246 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:30:33,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2018-09-19 03:30:33,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3305. [2018-09-19 03:30:33,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3305 states. [2018-09-19 03:30:34,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4062 transitions. [2018-09-19 03:30:34,004 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4062 transitions. Word has length 234 [2018-09-19 03:30:34,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:30:34,005 INFO L480 AbstractCegarLoop]: Abstraction has 3305 states and 4062 transitions. [2018-09-19 03:30:34,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:30:34,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4062 transitions. [2018-09-19 03:30:34,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-09-19 03:30:34,014 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:30:34,014 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, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:30:34,014 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:30:34,015 INFO L82 PathProgramCache]: Analyzing trace with hash -214895309, now seen corresponding path program 1 times [2018-09-19 03:30:34,015 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:30:34,015 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-09-19 03:30:34,015 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:30:34,018 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:30:34,018 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:30:36,864 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:30:50,385 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:30:50,385 INFO L272 AbstractInterpreter]: Visited 124 different actions 603 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:30:50,394 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:30:51,839 INFO L232 lantSequenceWeakener]: Weakened 237 states. On average, predicates are now at 73.39% of their original sizes. [2018-09-19 03:30:51,839 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:30:52,177 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:30:52,178 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:30:52,178 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:30:52,178 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:30:52,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:30:52,178 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:30:52,179 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:30:52,179 INFO L87 Difference]: Start difference. First operand 3305 states and 4062 transitions. Second operand 10 states. [2018-09-19 03:31:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:31:00,251 INFO L93 Difference]: Finished difference Result 6634 states and 8307 transitions. [2018-09-19 03:31:00,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:31:00,260 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 239 [2018-09-19 03:31:00,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:31:00,273 INFO L225 Difference]: With dead ends: 6634 [2018-09-19 03:31:00,273 INFO L226 Difference]: Without dead ends: 3483 [2018-09-19 03:31:00,279 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 246 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 03:31:00,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2018-09-19 03:31:00,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3457. [2018-09-19 03:31:00,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3457 states. [2018-09-19 03:31:00,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 4260 transitions. [2018-09-19 03:31:00,388 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 4260 transitions. Word has length 239 [2018-09-19 03:31:00,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:31:00,388 INFO L480 AbstractCegarLoop]: Abstraction has 3457 states and 4260 transitions. [2018-09-19 03:31:00,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:31:00,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 4260 transitions. [2018-09-19 03:31:00,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-09-19 03:31:00,395 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:31:00,395 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:31:00,396 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:31:00,396 INFO L82 PathProgramCache]: Analyzing trace with hash 282798240, now seen corresponding path program 1 times [2018-09-19 03:31:00,396 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:31:00,396 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-09-19 03:31:00,397 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:31:00,399 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:31:00,399 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:31:05,217 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:31:18,844 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:31:18,845 INFO L272 AbstractInterpreter]: Visited 118 different actions 687 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:31:18,850 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:31:20,498 INFO L232 lantSequenceWeakener]: Weakened 238 states. On average, predicates are now at 73.39% of their original sizes. [2018-09-19 03:31:20,499 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:31:21,289 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:31:21,289 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:31:21,290 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:31:21,290 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:31:21,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:31:21,291 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:31:21,291 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:31:21,291 INFO L87 Difference]: Start difference. First operand 3457 states and 4260 transitions. Second operand 13 states. [2018-09-19 03:31:28,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:31:28,722 INFO L93 Difference]: Finished difference Result 8601 states and 11011 transitions. [2018-09-19 03:31:28,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:31:28,723 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 240 [2018-09-19 03:31:28,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:31:28,742 INFO L225 Difference]: With dead ends: 8601 [2018-09-19 03:31:28,742 INFO L226 Difference]: Without dead ends: 5298 [2018-09-19 03:31:28,750 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 252 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:31:28,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2018-09-19 03:31:28,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 4845. [2018-09-19 03:31:28,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4845 states. [2018-09-19 03:31:28,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 6065 transitions. [2018-09-19 03:31:28,890 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 6065 transitions. Word has length 240 [2018-09-19 03:31:28,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:31:28,891 INFO L480 AbstractCegarLoop]: Abstraction has 4845 states and 6065 transitions. [2018-09-19 03:31:28,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:31:28,891 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 6065 transitions. [2018-09-19 03:31:28,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-09-19 03:31:28,900 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:31:28,900 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:31:28,900 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:31:28,900 INFO L82 PathProgramCache]: Analyzing trace with hash -361008624, now seen corresponding path program 1 times [2018-09-19 03:31:28,901 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:31:28,901 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 249 with the following transitions: [2018-09-19 03:31:28,901 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:31:28,903 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:31:28,903 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:31:31,951 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:31:49,207 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:31:49,207 INFO L272 AbstractInterpreter]: Visited 124 different actions 723 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:31:49,212 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:31:50,563 INFO L232 lantSequenceWeakener]: Weakened 246 states. On average, predicates are now at 73.37% of their original sizes. [2018-09-19 03:31:50,564 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:31:50,913 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:31:50,914 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:31:50,914 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 03:31:50,914 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:31:50,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 03:31:50,915 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 03:31:50,915 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 03:31:50,915 INFO L87 Difference]: Start difference. First operand 4845 states and 6065 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 03:31:52,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 03:31:52,670 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 03:31:52,677 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 03:31:52,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:31:52 BoogieIcfgContainer [2018-09-19 03:31:52,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 03:31:52,678 INFO L168 Benchmark]: Toolchain (without parser) took 252838.04 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 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-19 03:31:52,680 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 03:31:52,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:52,681 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:52,682 INFO L168 Benchmark]: Boogie Preprocessor took 267.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 765.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -859.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:52,683 INFO L168 Benchmark]: RCFGBuilder took 3637.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 7.1 GB. [2018-09-19 03:31:52,684 INFO L168 Benchmark]: TraceAbstraction took 248032.60 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -473.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-19 03:31:52,689 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 780.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 112.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 267.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 765.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -859.1 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3637.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 248032.60 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -473.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 133]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 133). Cancelled while BasicCegarLoop was constructing difference of abstraction (4845states) and FLOYD_HOARE automaton (currently 7 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (185 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 247.9s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 87.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2181 SDtfs, 11663 SDslu, 4011 SDs, 0 SdLazy, 23205 SolverSat, 2526 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.4s Time, PredicateUnifierStatistics: 24 DeclaredPredicates, 2337 GetRequests, 2112 SyntacticMatches, 0 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4845occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 139.0s AbstIntTime, 12 AbstIntIterations, 12 AbstIntStrong, 0.9943224027497367 AbsIntWeakeningRatio, 0.12410071942446044 AbsIntAvgWeakeningVarsNumRemoved, 891.8390287769785 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 1328 StatesRemovedByMinimization, 11 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/Problem10_label31_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_03-31-52-704.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label31_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_03-31-52-704.csv Completed graceful shutdown