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_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 11:17:58,867 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 11:17:58,869 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 11:17:58,887 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 11:17:58,887 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 11:17:58,889 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 11:17:58,890 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 11:17:58,892 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 11:17:58,895 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 11:17:58,901 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 11:17:58,902 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 11:17:58,905 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 11:17:58,906 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 11:17:58,907 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 11:17:58,910 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 11:17:58,911 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 11:17:58,912 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 11:17:58,914 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 11:17:58,916 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 11:17:58,919 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 11:17:58,920 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 11:17:58,921 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 11:17:58,923 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 11:17:58,923 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 11:17:58,923 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 11:17:58,924 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 11:17:58,925 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 11:17:58,925 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 11:17:58,926 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 11:17:58,927 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 11:17:58,927 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 11:17:58,928 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 11:17:58,928 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 11:17:58,928 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 11:17:58,929 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 11:17:58,930 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 11:17:58,930 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 [2018-09-15 11:17:58,949 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 11:17:58,949 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 11:17:58,950 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 11:17:58,950 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 11:17:58,950 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 11:17:58,951 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 11:17:58,951 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 11:17:58,951 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 11:17:58,951 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 11:17:58,951 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 11:17:58,951 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 11:17:58,952 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 11:17:58,952 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 11:17:58,953 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 11:17:58,953 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 11:17:58,953 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 11:17:58,953 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 11:17:58,953 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 11:17:58,953 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 11:17:58,954 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 11:17:58,954 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 11:17:58,954 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 11:17:58,954 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 11:17:58,954 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 11:17:58,955 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 11:17:58,955 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 11:17:58,955 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 11:17:58,955 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 11:17:58,955 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 11:17:58,955 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 11:17:58,956 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 11:17:58,956 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 11:17:58,956 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 11:17:59,020 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 11:17:59,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 11:17:59,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 11:17:59,037 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 11:17:59,038 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 11:17:59,038 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label09_true-unreach-call.c [2018-09-15 11:17:59,393 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc18f3254/a8bbc962c6b74a35abccab9eb7248615/FLAGfb3cc9436 [2018-09-15 11:17:59,656 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 11:17:59,657 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label09_true-unreach-call.c [2018-09-15 11:17:59,683 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc18f3254/a8bbc962c6b74a35abccab9eb7248615/FLAGfb3cc9436 [2018-09-15 11:17:59,699 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc18f3254/a8bbc962c6b74a35abccab9eb7248615 [2018-09-15 11:17:59,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 11:17:59,714 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 11:17:59,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 11:17:59,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 11:17:59,731 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 11:17:59,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:17:59" (1/1) ... [2018-09-15 11:17:59,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a614e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:17:59, skipping insertion in model container [2018-09-15 11:17:59,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:17:59" (1/1) ... [2018-09-15 11:17:59,750 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 11:18:00,259 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:18:00,277 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 11:18:00,426 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:18:00,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00 WrapperNode [2018-09-15 11:18:00,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 11:18:00,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 11:18:00,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 11:18:00,496 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 11:18:00,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00" (1/1) ... [2018-09-15 11:18:00,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00" (1/1) ... [2018-09-15 11:18:00,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 11:18:00,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 11:18:00,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 11:18:00,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 11:18:00,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00" (1/1) ... [2018-09-15 11:18:00,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00" (1/1) ... [2018-09-15 11:18:00,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00" (1/1) ... [2018-09-15 11:18:00,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00" (1/1) ... [2018-09-15 11:18:00,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00" (1/1) ... [2018-09-15 11:18:00,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00" (1/1) ... [2018-09-15 11:18:00,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00" (1/1) ... [2018-09-15 11:18:00,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 11:18:00,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 11:18:00,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 11:18:00,932 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 11:18:00,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00" (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 [2018-09-15 11:18:01,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 11:18:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 11:18:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 11:18:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 11:18:01,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 11:18:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 11:18:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 11:18:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 11:18:04,256 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 11:18:04,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:18:04 BoogieIcfgContainer [2018-09-15 11:18:04,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 11:18:04,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 11:18:04,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 11:18:04,262 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 11:18:04,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:17:59" (1/3) ... [2018-09-15 11:18:04,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a80e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:18:04, skipping insertion in model container [2018-09-15 11:18:04,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:18:00" (2/3) ... [2018-09-15 11:18:04,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a80e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:18:04, skipping insertion in model container [2018-09-15 11:18:04,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:18:04" (3/3) ... [2018-09-15 11:18:04,265 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label09_true-unreach-call.c [2018-09-15 11:18:04,274 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 11:18:04,281 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 11:18:04,330 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 11:18:04,331 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 11:18:04,332 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 11:18:04,332 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 11:18:04,332 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 11:18:04,332 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 11:18:04,332 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 11:18:04,333 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 11:18:04,333 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 11:18:04,360 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-15 11:18:04,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-15 11:18:04,372 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:18:04,373 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:18:04,375 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:18:04,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1006724975, now seen corresponding path program 1 times [2018-09-15 11:18:04,383 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:18:04,384 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 64 with the following transitions: [2018-09-15 11:18:04,387 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-15 11:18:04,453 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:18:04,453 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:18:06,448 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:18:06,450 INFO L272 AbstractInterpreter]: Visited 62 different actions 62 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 11:18:06,467 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:18:07,312 INFO L232 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 75.99% of their original sizes. [2018-09-15 11:18:07,312 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:18:07,649 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:18:07,651 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:18:07,652 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 11:18:07,652 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:18:07,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 11:18:07,665 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 11:18:07,666 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:18:07,668 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-15 11:18:12,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:18:12,346 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-15 11:18:12,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 11:18:12,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2018-09-15 11:18:12,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:18:12,366 INFO L225 Difference]: With dead ends: 576 [2018-09-15 11:18:12,366 INFO L226 Difference]: Without dead ends: 358 [2018-09-15 11:18:12,373 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:18:12,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-15 11:18:12,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-15 11:18:12,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-15 11:18:12,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-15 11:18:12,454 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 63 [2018-09-15 11:18:12,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:18:12,455 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-15 11:18:12,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 11:18:12,455 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-15 11:18:12,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-15 11:18:12,463 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:18:12,463 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:18:12,464 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:18:12,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1804038429, now seen corresponding path program 1 times [2018-09-15 11:18:12,464 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:18:12,465 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-09-15 11:18:12,465 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:18:12,477 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:18:12,479 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:18:14,885 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:18:21,235 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:18:21,236 INFO L272 AbstractInterpreter]: Visited 78 different actions 150 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 11:18:21,279 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:18:25,387 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 74.34% of their original sizes. [2018-09-15 11:18:25,387 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:18:27,637 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:18:27,637 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:18:27,638 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 11:18:27,638 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:18:27,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 11:18:27,640 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 11:18:27,640 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 11:18:27,641 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-15 11:18:36,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:18:36,201 INFO L93 Difference]: Finished difference Result 711 states and 1126 transitions. [2018-09-15 11:18:36,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 11:18:36,203 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2018-09-15 11:18:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:18:36,209 INFO L225 Difference]: With dead ends: 711 [2018-09-15 11:18:36,209 INFO L226 Difference]: Without dead ends: 505 [2018-09-15 11:18:36,212 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 140 GetRequests, 74 SyntacticMatches, 51 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-15 11:18:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-09-15 11:18:36,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 502. [2018-09-15 11:18:36,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-09-15 11:18:36,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 655 transitions. [2018-09-15 11:18:36,256 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 655 transitions. Word has length 134 [2018-09-15 11:18:36,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:18:36,257 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 655 transitions. [2018-09-15 11:18:36,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 11:18:36,257 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 655 transitions. [2018-09-15 11:18:36,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-09-15 11:18:36,262 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:18:36,262 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:18:36,263 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:18:36,263 INFO L82 PathProgramCache]: Analyzing trace with hash -213235556, now seen corresponding path program 1 times [2018-09-15 11:18:36,263 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:18:36,264 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 144 with the following transitions: [2018-09-15 11:18:36,264 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [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] [2018-09-15 11:18:36,270 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:18:36,270 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:18:42,361 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:18:42,362 INFO L272 AbstractInterpreter]: Visited 87 different actions 167 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 11:18:42,367 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:18:44,810 INFO L232 lantSequenceWeakener]: Weakened 141 states. On average, predicates are now at 74.23% of their original sizes. [2018-09-15 11:18:44,811 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:18:46,066 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:18:46,067 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:18:46,067 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:18:46,067 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:18:46,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:18:46,069 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:18:46,069 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:18:46,069 INFO L87 Difference]: Start difference. First operand 502 states and 655 transitions. Second operand 11 states. [2018-09-15 11:18:57,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:18:57,920 INFO L93 Difference]: Finished difference Result 1002 states and 1569 transitions. [2018-09-15 11:18:57,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 11:18:57,923 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 143 [2018-09-15 11:18:57,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:18:57,932 INFO L225 Difference]: With dead ends: 1002 [2018-09-15 11:18:57,932 INFO L226 Difference]: Without dead ends: 796 [2018-09-15 11:18:57,934 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 82 SyntacticMatches, 51 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 11:18:57,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-09-15 11:18:57,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 793. [2018-09-15 11:18:57,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2018-09-15 11:18:58,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 962 transitions. [2018-09-15 11:18:58,001 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 962 transitions. Word has length 143 [2018-09-15 11:18:58,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:18:58,002 INFO L480 AbstractCegarLoop]: Abstraction has 793 states and 962 transitions. [2018-09-15 11:18:58,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:18:58,003 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 962 transitions. [2018-09-15 11:18:58,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-09-15 11:18:58,016 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:18:58,016 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:18:58,016 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:18:58,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1373428132, now seen corresponding path program 1 times [2018-09-15 11:18:58,017 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:18:58,017 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-09-15 11:18:58,018 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [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] [2018-09-15 11:18:58,025 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:18:58,025 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:19:01,864 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:19:13,474 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:19:13,475 INFO L272 AbstractInterpreter]: Visited 123 different actions 240 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 11:19:13,482 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:19:17,907 INFO L232 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 73.93% of their original sizes. [2018-09-15 11:19:17,907 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:19:19,794 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:19:19,795 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:19:19,795 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 11:19:19,795 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:19:19,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 11:19:19,796 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 11:19:19,797 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-15 11:19:19,797 INFO L87 Difference]: Start difference. First operand 793 states and 962 transitions. Second operand 12 states. [2018-09-15 11:19:27,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:19:27,167 INFO L93 Difference]: Finished difference Result 1150 states and 1593 transitions. [2018-09-15 11:19:27,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 11:19:27,168 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 179 [2018-09-15 11:19:27,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:19:27,174 INFO L225 Difference]: With dead ends: 1150 [2018-09-15 11:19:27,174 INFO L226 Difference]: Without dead ends: 944 [2018-09-15 11:19:27,176 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 187 GetRequests, 117 SyntacticMatches, 51 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-15 11:19:27,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2018-09-15 11:19:27,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 939. [2018-09-15 11:19:27,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2018-09-15 11:19:27,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1120 transitions. [2018-09-15 11:19:27,226 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1120 transitions. Word has length 179 [2018-09-15 11:19:27,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:19:27,226 INFO L480 AbstractCegarLoop]: Abstraction has 939 states and 1120 transitions. [2018-09-15 11:19:27,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 11:19:27,227 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1120 transitions. [2018-09-15 11:19:27,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-09-15 11:19:27,230 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:19:27,230 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:19:27,231 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:19:27,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1760883555, now seen corresponding path program 1 times [2018-09-15 11:19:27,231 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:19:27,231 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-09-15 11:19:27,232 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [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] [2018-09-15 11:19:27,238 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:19:27,238 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:19:53,303 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:19:53,303 INFO L272 AbstractInterpreter]: Visited 142 different actions 549 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 11:19:53,310 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:19:55,441 INFO L232 lantSequenceWeakener]: Weakened 196 states. On average, predicates are now at 73.81% of their original sizes. [2018-09-15 11:19:55,442 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:19:56,300 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:19:56,301 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:19:56,301 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 11:19:56,301 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:19:56,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 11:19:56,302 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 11:19:56,302 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 11:19:56,302 INFO L87 Difference]: Start difference. First operand 939 states and 1120 transitions. Second operand 15 states. [2018-09-15 11:20:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:20:04,051 INFO L93 Difference]: Finished difference Result 1301 states and 1760 transitions. [2018-09-15 11:20:04,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-15 11:20:04,055 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 198 [2018-09-15 11:20:04,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:20:04,061 INFO L225 Difference]: With dead ends: 1301 [2018-09-15 11:20:04,062 INFO L226 Difference]: Without dead ends: 1095 [2018-09-15 11:20:04,063 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 209 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2018-09-15 11:20:04,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-09-15 11:20:04,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1089. [2018-09-15 11:20:04,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1089 states. [2018-09-15 11:20:04,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1286 transitions. [2018-09-15 11:20:04,116 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1286 transitions. Word has length 198 [2018-09-15 11:20:04,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:20:04,117 INFO L480 AbstractCegarLoop]: Abstraction has 1089 states and 1286 transitions. [2018-09-15 11:20:04,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 11:20:04,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1286 transitions. [2018-09-15 11:20:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-09-15 11:20:04,121 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:20:04,121 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:20:04,121 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:20:04,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1854341360, now seen corresponding path program 1 times [2018-09-15 11:20:04,122 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:20:04,122 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-09-15 11:20:04,123 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [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], [755], [759], [763], [766], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:20:04,128 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:20:04,128 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:20:21,648 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:20:21,648 INFO L272 AbstractInterpreter]: Visited 145 different actions 284 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 11:20:21,652 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:20:26,218 INFO L232 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 73.79% of their original sizes. [2018-09-15 11:20:26,218 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:20:28,258 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:20:28,259 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:20:28,259 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 11:20:28,259 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:20:28,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 11:20:28,260 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 11:20:28,261 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-15 11:20:28,261 INFO L87 Difference]: Start difference. First operand 1089 states and 1286 transitions. Second operand 14 states. [2018-09-15 11:20:39,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:20:39,831 INFO L93 Difference]: Finished difference Result 1594 states and 2078 transitions. [2018-09-15 11:20:39,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:20:39,833 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 201 [2018-09-15 11:20:39,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:20:39,841 INFO L225 Difference]: With dead ends: 1594 [2018-09-15 11:20:39,841 INFO L226 Difference]: Without dead ends: 1238 [2018-09-15 11:20:39,843 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 137 SyntacticMatches, 51 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2018-09-15 11:20:39,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2018-09-15 11:20:39,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1235. [2018-09-15 11:20:39,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1235 states. [2018-09-15 11:20:39,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1444 transitions. [2018-09-15 11:20:39,905 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1444 transitions. Word has length 201 [2018-09-15 11:20:39,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:20:39,905 INFO L480 AbstractCegarLoop]: Abstraction has 1235 states and 1444 transitions. [2018-09-15 11:20:39,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-15 11:20:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1444 transitions. [2018-09-15 11:20:39,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-09-15 11:20:39,919 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:20:39,919 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-15 11:20:39,920 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:20:39,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1022007002, now seen corresponding path program 1 times [2018-09-15 11:20:39,920 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:20:39,921 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-09-15 11:20:39,921 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [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] [2018-09-15 11:20:39,924 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:20:39,925 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:20:41,352 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:20:53,561 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:20:53,562 INFO L272 AbstractInterpreter]: Visited 84 different actions 244 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 11:20:53,567 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:20:57,980 INFO L232 lantSequenceWeakener]: Weakened 208 states. On average, predicates are now at 73.8% of their original sizes. [2018-09-15 11:20:57,980 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:20:59,622 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:20:59,622 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:20:59,622 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 11:20:59,622 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:20:59,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 11:20:59,623 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 11:20:59,623 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 11:20:59,624 INFO L87 Difference]: Start difference. First operand 1235 states and 1444 transitions. Second operand 10 states. [2018-09-15 11:21:08,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:21:08,525 INFO L93 Difference]: Finished difference Result 1749 states and 2252 transitions. [2018-09-15 11:21:08,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 11:21:08,526 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 210 [2018-09-15 11:21:08,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:21:08,533 INFO L225 Difference]: With dead ends: 1749 [2018-09-15 11:21:08,533 INFO L226 Difference]: Without dead ends: 1393 [2018-09-15 11:21:08,535 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 217 GetRequests, 150 SyntacticMatches, 51 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 11:21:08,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2018-09-15 11:21:08,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1383. [2018-09-15 11:21:08,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1383 states. [2018-09-15 11:21:08,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 1610 transitions. [2018-09-15 11:21:08,597 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 1610 transitions. Word has length 210 [2018-09-15 11:21:08,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:21:08,597 INFO L480 AbstractCegarLoop]: Abstraction has 1383 states and 1610 transitions. [2018-09-15 11:21:08,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 11:21:08,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 1610 transitions. [2018-09-15 11:21:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-09-15 11:21:08,602 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:21:08,602 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-15 11:21:08,603 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:21:08,603 INFO L82 PathProgramCache]: Analyzing trace with hash -381302034, now seen corresponding path program 1 times [2018-09-15 11:21:08,603 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:21:08,603 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-09-15 11:21:08,604 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 11:21:08,606 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:21:08,606 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:21:10,018 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:21:30,274 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:21:30,274 INFO L272 AbstractInterpreter]: Visited 88 different actions 510 times. Merged at 7 different actions 37 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 11:21:30,281 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:21:31,382 INFO L232 lantSequenceWeakener]: Weakened 212 states. On average, predicates are now at 73.75% of their original sizes. [2018-09-15 11:21:31,382 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:21:32,007 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:21:32,007 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:21:32,007 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 11:21:32,008 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:21:32,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 11:21:32,008 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 11:21:32,008 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2018-09-15 11:21:32,009 INFO L87 Difference]: Start difference. First operand 1383 states and 1610 transitions. Second operand 15 states. [2018-09-15 11:21:42,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:21:42,803 INFO L93 Difference]: Finished difference Result 2585 states and 3385 transitions. [2018-09-15 11:21:42,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:21:42,804 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 214 [2018-09-15 11:21:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:21:42,816 INFO L225 Difference]: With dead ends: 2585 [2018-09-15 11:21:42,816 INFO L226 Difference]: Without dead ends: 2081 [2018-09-15 11:21:42,820 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2018-09-15 11:21:42,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2018-09-15 11:21:42,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 2059. [2018-09-15 11:21:42,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2059 states. [2018-09-15 11:21:42,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2059 states to 2059 states and 2428 transitions. [2018-09-15 11:21:42,919 INFO L78 Accepts]: Start accepts. Automaton has 2059 states and 2428 transitions. Word has length 214 [2018-09-15 11:21:42,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:21:42,920 INFO L480 AbstractCegarLoop]: Abstraction has 2059 states and 2428 transitions. [2018-09-15 11:21:42,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 11:21:42,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2059 states and 2428 transitions. [2018-09-15 11:21:42,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-09-15 11:21:42,926 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:21:42,927 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-15 11:21:42,927 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:21:42,927 INFO L82 PathProgramCache]: Analyzing trace with hash 961463493, now seen corresponding path program 1 times [2018-09-15 11:21:42,927 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:21:42,928 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-09-15 11:21:42,928 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], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [405], [407], [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] [2018-09-15 11:21:42,931 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:21:42,932 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:21:44,257 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:22:08,586 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:22:08,586 INFO L272 AbstractInterpreter]: Visited 121 different actions 589 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 11:22:08,596 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:22:10,076 INFO L232 lantSequenceWeakener]: Weakened 245 states. On average, predicates are now at 73.64% of their original sizes. [2018-09-15 11:22:10,077 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:22:10,838 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:22:10,839 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:22:10,839 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 11:22:10,839 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:22:10,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 11:22:10,840 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 11:22:10,840 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 11:22:10,840 INFO L87 Difference]: Start difference. First operand 2059 states and 2428 transitions. Second operand 13 states. Received shutdown request... [2018-09-15 11:22:18,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:22:18,268 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 11:22:18,274 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 11:22:18,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:22:18 BoogieIcfgContainer [2018-09-15 11:22:18,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 11:22:18,275 INFO L168 Benchmark]: Toolchain (without parser) took 258564.28 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-15 11:22:18,277 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-09-15 11:22:18,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 778.33 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. [2018-09-15 11:22:18,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.19 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. [2018-09-15 11:22:18,279 INFO L168 Benchmark]: Boogie Preprocessor took 317.55 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -862.8 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2018-09-15 11:22:18,280 INFO L168 Benchmark]: RCFGBuilder took 3325.61 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: 100.3 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. [2018-09-15 11:22:18,281 INFO L168 Benchmark]: TraceAbstraction took 254016.76 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 2.9 GB in the end (delta: -765.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-15 11:22:18,286 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 778.33 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 118.19 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 317.55 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -862.8 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3325.61 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: 100.3 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 254016.76 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 2.9 GB in the end (delta: -765.9 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 172]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 172). Cancelled while BasicCegarLoop was constructing difference of abstraction (2059states) and FLOYD_HOARE automaton (currently 18 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (2228 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 253.9s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 79.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1801 SDtfs, 7124 SDslu, 2965 SDs, 0 SdLazy, 16658 SolverSat, 1680 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 69.0s Time, PredicateUnifierStatistics: 18 DeclaredPredicates, 1660 GetRequests, 1225 SyntacticMatches, 267 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2489 ImplicationChecksByTransitivity, 15.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2059occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 137.0s AbstIntTime, 9 AbstIntIterations, 9 AbstIntStrong, 0.9944091784660023 AbsIntWeakeningRatio, 0.12151898734177215 AbsIntAvgWeakeningVarsNumRemoved, 304.4670886075949 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 54 StatesRemovedByMinimization, 8 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_label09_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_11-22-18-300.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label09_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_11-22-18-300.csv Completed graceful shutdown