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/Problem15_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:19:56,578 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:19:56,580 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:19:56,594 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:19:56,594 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:19:56,595 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:19:56,597 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:19:56,599 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:19:56,600 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:19:56,601 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:19:56,602 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:19:56,602 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:19:56,604 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:19:56,605 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:19:56,606 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:19:56,607 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:19:56,608 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:19:56,610 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:19:56,612 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:19:56,613 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:19:56,615 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:19:56,616 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:19:56,619 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:19:56,619 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:19:56,620 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:19:56,621 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:19:56,624 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:19:56,627 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:19:56,628 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:19:56,629 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:19:56,629 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:19:56,630 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-15 12:19:56,632 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 12:19:56,648 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:19:56,649 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:19:56,650 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:19:56,650 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:19:56,650 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:19:56,650 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:19:56,651 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:19:56,651 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:19:56,651 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:19:56,651 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:19:56,651 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:19:56,652 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:19:56,652 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:19:56,653 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:19:56,653 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:19:56,653 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:19:56,653 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:19:56,653 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:19:56,654 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:19:56,654 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:19:56,654 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:19:56,654 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:19:56,654 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:19:56,654 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:19:56,655 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:19:56,655 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:19:56,655 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:19:56,655 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:19:56,655 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:19:56,656 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:19:56,656 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:19:56,656 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:19:56,656 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:19:56,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:19:56,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:19:56,722 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:19:56,724 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:19:56,724 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:19:56,725 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label53_true-unreach-call.c [2018-09-15 12:19:57,142 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b012d379e/7f293ccfda8a4a078cea1897acda0817/FLAGfdf35f6ac [2018-09-15 12:19:57,516 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:19:57,517 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label53_true-unreach-call.c [2018-09-15 12:19:57,541 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b012d379e/7f293ccfda8a4a078cea1897acda0817/FLAGfdf35f6ac [2018-09-15 12:19:57,560 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b012d379e/7f293ccfda8a4a078cea1897acda0817 [2018-09-15 12:19:57,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:19:57,580 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:19:57,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:19:57,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:19:57,596 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:19:57,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:19:57" (1/1) ... [2018-09-15 12:19:57,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600f763c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:57, skipping insertion in model container [2018-09-15 12:19:57,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:19:57" (1/1) ... [2018-09-15 12:19:57,617 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:19:58,537 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:19:58,561 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:19:58,859 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:19:59,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59 WrapperNode [2018-09-15 12:19:59,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:19:59,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:19:59,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:19:59,020 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:19:59,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59" (1/1) ... [2018-09-15 12:19:59,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59" (1/1) ... [2018-09-15 12:19:59,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:19:59,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:19:59,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:19:59,315 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:19:59,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59" (1/1) ... [2018-09-15 12:19:59,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59" (1/1) ... [2018-09-15 12:19:59,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59" (1/1) ... [2018-09-15 12:19:59,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59" (1/1) ... [2018-09-15 12:19:59,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59" (1/1) ... [2018-09-15 12:19:59,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59" (1/1) ... [2018-09-15 12:19:59,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59" (1/1) ... [2018-09-15 12:20:00,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:20:00,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:20:00,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:20:00,028 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:20:00,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59" (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 12:20:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:20:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:20:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:20:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:20:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:20:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:20:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:20:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:20:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:20:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:20:07,953 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:20:07,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:20:07 BoogieIcfgContainer [2018-09-15 12:20:07,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:20:07,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:20:07,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:20:07,961 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:20:07,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:19:57" (1/3) ... [2018-09-15 12:20:07,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a335545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:20:07, skipping insertion in model container [2018-09-15 12:20:07,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:19:59" (2/3) ... [2018-09-15 12:20:07,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a335545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:20:07, skipping insertion in model container [2018-09-15 12:20:07,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:20:07" (3/3) ... [2018-09-15 12:20:07,965 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label53_true-unreach-call.c [2018-09-15 12:20:07,976 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:20:07,987 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:20:08,057 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:20:08,059 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:20:08,059 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:20:08,059 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:20:08,059 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:20:08,059 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:20:08,060 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:20:08,060 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:20:08,060 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:20:08,097 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-15 12:20:08,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-15 12:20:08,107 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:20:08,108 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] [2018-09-15 12:20:08,110 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:20:08,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1192963812, now seen corresponding path program 1 times [2018-09-15 12:20:08,117 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:20:08,118 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 55 with the following transitions: [2018-09-15 12:20:08,121 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-15 12:20:08,198 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:20:08,198 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:20:09,833 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:20:09,835 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:20:09,895 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:20:10,729 INFO L232 lantSequenceWeakener]: Weakened 52 states. On average, predicates are now at 80.56% of their original sizes. [2018-09-15 12:20:10,729 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:20:11,091 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:20:11,093 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:20:11,094 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:20:11,094 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:20:11,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:20:11,107 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:20:11,108 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:20:11,111 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-15 12:20:21,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:20:21,014 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-15 12:20:21,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:20:21,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2018-09-15 12:20:21,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:20:21,040 INFO L225 Difference]: With dead ends: 1184 [2018-09-15 12:20:21,040 INFO L226 Difference]: Without dead ends: 744 [2018-09-15 12:20:21,051 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 53 GetRequests, 49 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 12:20:21,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-15 12:20:21,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-15 12:20:21,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-15 12:20:21,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-15 12:20:21,157 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 54 [2018-09-15 12:20:21,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:20:21,158 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-15 12:20:21,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:20:21,158 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-15 12:20:21,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-09-15 12:20:21,166 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:20:21,167 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:21,167 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:20:21,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1262736723, now seen corresponding path program 1 times [2018-09-15 12:20:21,168 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:20:21,168 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 151 with the following transitions: [2018-09-15 12:20:21,169 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:20:21,177 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:20:21,179 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:20:24,007 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:20:36,311 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:20:36,311 INFO L272 AbstractInterpreter]: Visited 103 different actions 393 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 12:20:36,318 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:20:37,897 INFO L232 lantSequenceWeakener]: Weakened 148 states. On average, predicates are now at 78.51% of their original sizes. [2018-09-15 12:20:37,898 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:20:39,465 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:20:39,466 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:20:39,466 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:20:39,467 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:20:39,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:20:39,471 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:20:39,471 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:20:39,471 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 12 states. [2018-09-15 12:21:00,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:21:00,099 INFO L93 Difference]: Finished difference Result 1798 states and 3052 transitions. [2018-09-15 12:21:00,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-15 12:21:00,100 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 150 [2018-09-15 12:21:00,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:21:00,112 INFO L225 Difference]: With dead ends: 1798 [2018-09-15 12:21:00,112 INFO L226 Difference]: Without dead ends: 1370 [2018-09-15 12:21:00,116 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 160 GetRequests, 109 SyntacticMatches, 30 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2018-09-15 12:21:00,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2018-09-15 12:21:00,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1365. [2018-09-15 12:21:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1365 states. [2018-09-15 12:21:00,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1724 transitions. [2018-09-15 12:21:00,190 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1724 transitions. Word has length 150 [2018-09-15 12:21:00,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:21:00,191 INFO L480 AbstractCegarLoop]: Abstraction has 1365 states and 1724 transitions. [2018-09-15 12:21:00,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:21:00,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1724 transitions. [2018-09-15 12:21:00,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-09-15 12:21:00,202 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:21:00,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:00,203 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:21:00,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1120248640, now seen corresponding path program 1 times [2018-09-15 12:21:00,203 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:21:00,203 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-09-15 12:21:00,204 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:21:00,219 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:21:00,219 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:21:07,519 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:21:21,288 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:21:21,289 INFO L272 AbstractInterpreter]: Visited 245 different actions 722 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:21:21,293 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:21:23,364 INFO L232 lantSequenceWeakener]: Weakened 290 states. On average, predicates are now at 77.91% of their original sizes. [2018-09-15 12:21:23,365 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:21:24,463 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:21:24,463 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:21:24,463 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:21:24,464 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:21:24,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:21:24,465 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:21:24,466 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:21:24,466 INFO L87 Difference]: Start difference. First operand 1365 states and 1724 transitions. Second operand 12 states. [2018-09-15 12:21:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:21:40,364 INFO L93 Difference]: Finished difference Result 2415 states and 3696 transitions. [2018-09-15 12:21:40,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:21:40,367 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 292 [2018-09-15 12:21:40,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:21:40,380 INFO L225 Difference]: With dead ends: 2415 [2018-09-15 12:21:40,380 INFO L226 Difference]: Without dead ends: 1987 [2018-09-15 12:21:40,384 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 299 GetRequests, 239 SyntacticMatches, 42 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:21:40,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2018-09-15 12:21:40,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1984. [2018-09-15 12:21:40,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1984 states. [2018-09-15 12:21:40,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2361 transitions. [2018-09-15 12:21:40,464 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2361 transitions. Word has length 292 [2018-09-15 12:21:40,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:21:40,465 INFO L480 AbstractCegarLoop]: Abstraction has 1984 states and 2361 transitions. [2018-09-15 12:21:40,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:21:40,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2361 transitions. [2018-09-15 12:21:40,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2018-09-15 12:21:40,474 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:21:40,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:40,475 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:21:40,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1617252705, now seen corresponding path program 1 times [2018-09-15 12:21:40,475 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:21:40,476 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 294 with the following transitions: [2018-09-15 12:21:40,479 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1382], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:21:40,497 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:21:40,498 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:21:47,490 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:22:15,532 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:22:15,532 INFO L272 AbstractInterpreter]: Visited 246 different actions 965 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 12:22:15,541 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:22:17,675 INFO L232 lantSequenceWeakener]: Weakened 291 states. On average, predicates are now at 77.9% of their original sizes. [2018-09-15 12:22:17,676 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:22:22,319 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:22:22,319 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:22:22,319 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-15 12:22:22,319 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:22:22,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-15 12:22:22,320 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-15 12:22:22,321 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-09-15 12:22:22,321 INFO L87 Difference]: Start difference. First operand 1984 states and 2361 transitions. Second operand 16 states. [2018-09-15 12:22:53,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:22:53,971 INFO L93 Difference]: Finished difference Result 3569 states and 5393 transitions. [2018-09-15 12:22:53,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-09-15 12:22:53,972 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 293 [2018-09-15 12:22:53,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:22:53,987 INFO L225 Difference]: With dead ends: 3569 [2018-09-15 12:22:53,987 INFO L226 Difference]: Without dead ends: 3141 [2018-09-15 12:22:53,991 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 311 GetRequests, 248 SyntacticMatches, 30 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=264, Invalid=926, Unknown=0, NotChecked=0, Total=1190 [2018-09-15 12:22:53,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2018-09-15 12:22:54,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2914. [2018-09-15 12:22:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2914 states. [2018-09-15 12:22:54,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3327 transitions. [2018-09-15 12:22:54,091 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3327 transitions. Word has length 293 [2018-09-15 12:22:54,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:22:54,092 INFO L480 AbstractCegarLoop]: Abstraction has 2914 states and 3327 transitions. [2018-09-15 12:22:54,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-15 12:22:54,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3327 transitions. [2018-09-15 12:22:54,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-09-15 12:22:54,099 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:22:54,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:22:54,100 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:22:54,100 INFO L82 PathProgramCache]: Analyzing trace with hash 513028050, now seen corresponding path program 1 times [2018-09-15 12:22:54,100 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:22:54,101 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 330 with the following transitions: [2018-09-15 12:22:54,101 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:22:54,110 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:22:54,110 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:23:01,322 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:23:31,071 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:23:31,072 INFO L272 AbstractInterpreter]: Visited 282 different actions 558 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 12:23:31,098 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:23:38,453 INFO L232 lantSequenceWeakener]: Weakened 327 states. On average, predicates are now at 77.83% of their original sizes. [2018-09-15 12:23:38,453 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:23:45,346 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:23:45,346 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:23:45,346 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-15 12:23:45,346 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:23:45,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-15 12:23:45,347 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-15 12:23:45,347 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:23:45,348 INFO L87 Difference]: Start difference. First operand 2914 states and 3327 transitions. Second operand 18 states. Received shutdown request... [2018-09-15 12:23:45,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 12:23:45,618 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:23:45,623 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:23:45,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:23:45 BoogieIcfgContainer [2018-09-15 12:23:45,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:23:45,625 INFO L168 Benchmark]: Toolchain (without parser) took 228049.45 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 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 533.8 MB. Max. memory is 7.1 GB. [2018-09-15 12:23:45,628 INFO L168 Benchmark]: CDTParser took 0.25 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 12:23:45,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1433.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. [2018-09-15 12:23:45,630 INFO L168 Benchmark]: Boogie Procedure Inliner took 294.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-09-15 12:23:45,631 INFO L168 Benchmark]: Boogie Preprocessor took 712.59 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 878.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:23:45,632 INFO L168 Benchmark]: RCFGBuilder took 7926.84 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 290.6 MB). Peak memory consumption was 290.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:23:45,633 INFO L168 Benchmark]: TraceAbstraction took 217668.63 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 231.5 MB. Max. memory is 7.1 GB. [2018-09-15 12:23:45,640 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 1433.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 294.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 712.59 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 878.2 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7926.84 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 290.6 MB). Peak memory consumption was 290.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217668.63 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 231.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 148). Cancelled while BasicCegarLoop was constructing difference of abstraction (2914states) and FLOYD_HOARE automaton (currently 3 states, 18 states before enhancement), while ReachableStatesComputation was computing reachable states (5 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 217.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 78.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1860 SDtfs, 9481 SDslu, 1243 SDs, 0 SdLazy, 13885 SolverSat, 2127 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 71.1s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1151 GetRequests, 915 SyntacticMatches, 144 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1904 ImplicationChecksByTransitivity, 16.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2914occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 110.0s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9960722897556366 AbsIntWeakeningRatio, 0.08445642407906559 AbsIntAvgWeakeningVarsNumRemoved, 471.59299191374663 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 237 StatesRemovedByMinimization, 4 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/Problem15_label53_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-23-45-661.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label53_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-23-45-661.csv Completed graceful shutdown