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/Problem11_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 11:29:57,616 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 11:29:57,619 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 11:29:57,634 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 11:29:57,638 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 11:29:57,639 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 11:29:57,642 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 11:29:57,645 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 11:29:57,648 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 11:29:57,649 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 11:29:57,653 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 11:29:57,654 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 11:29:57,655 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 11:29:57,658 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 11:29:57,663 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 11:29:57,663 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 11:29:57,668 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 11:29:57,670 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 11:29:57,679 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 11:29:57,683 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 11:29:57,684 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 11:29:57,686 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 11:29:57,695 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 11:29:57,695 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 11:29:57,695 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 11:29:57,696 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 11:29:57,699 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 11:29:57,700 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 11:29:57,700 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 11:29:57,701 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 11:29:57,702 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 11:29:57,706 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 11:29:57,706 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 11:29:57,706 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 11:29:57,708 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 11:29:57,709 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 11:29:57,710 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 11:29:57,745 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 11:29:57,746 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 11:29:57,747 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 11:29:57,747 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 11:29:57,748 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 11:29:57,748 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 11:29:57,748 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 11:29:57,748 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 11:29:57,749 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 11:29:57,749 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 11:29:57,749 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 11:29:57,751 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 11:29:57,751 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 11:29:57,752 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 11:29:57,752 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 11:29:57,752 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 11:29:57,752 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 11:29:57,753 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 11:29:57,753 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 11:29:57,753 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 11:29:57,755 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 11:29:57,755 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 11:29:57,755 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 11:29:57,756 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 11:29:57,756 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 11:29:57,756 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 11:29:57,756 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 11:29:57,757 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 11:29:57,757 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 11:29:57,757 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 11:29:57,757 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 11:29:57,757 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 11:29:57,758 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 11:29:57,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 11:29:57,847 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 11:29:57,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 11:29:57,856 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 11:29:57,856 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 11:29:57,857 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label02_true-unreach-call.c [2018-09-15 11:29:58,248 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51b9421e9/9b7361f4b4474278909081ce59eb4276/FLAGa476f69b7 [2018-09-15 11:29:58,575 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 11:29:58,576 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label02_true-unreach-call.c [2018-09-15 11:29:58,596 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51b9421e9/9b7361f4b4474278909081ce59eb4276/FLAGa476f69b7 [2018-09-15 11:29:58,621 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51b9421e9/9b7361f4b4474278909081ce59eb4276 [2018-09-15 11:29:58,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 11:29:58,643 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 11:29:58,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 11:29:58,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 11:29:58,654 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 11:29:58,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:29:58" (1/1) ... [2018-09-15 11:29:58,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9b8b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:58, skipping insertion in model container [2018-09-15 11:29:58,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:29:58" (1/1) ... [2018-09-15 11:29:58,673 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 11:29:59,362 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:29:59,387 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 11:29:59,583 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:29:59,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59 WrapperNode [2018-09-15 11:29:59,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 11:29:59,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 11:29:59,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 11:29:59,685 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 11:29:59,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59" (1/1) ... [2018-09-15 11:29:59,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59" (1/1) ... [2018-09-15 11:29:59,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 11:29:59,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 11:29:59,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 11:29:59,879 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 11:30:00,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59" (1/1) ... [2018-09-15 11:30:00,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59" (1/1) ... [2018-09-15 11:30:00,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59" (1/1) ... [2018-09-15 11:30:00,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59" (1/1) ... [2018-09-15 11:30:00,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59" (1/1) ... [2018-09-15 11:30:00,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59" (1/1) ... [2018-09-15 11:30:00,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59" (1/1) ... [2018-09-15 11:30:00,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 11:30:00,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 11:30:00,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 11:30:00,323 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 11:30:00,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59" (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 11:30:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 11:30:00,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 11:30:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 11:30:00,402 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 11:30:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 11:30:00,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 11:30:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 11:30:00,403 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 11:30:05,416 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 11:30:05,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:30:05 BoogieIcfgContainer [2018-09-15 11:30:05,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 11:30:05,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 11:30:05,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 11:30:05,422 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 11:30:05,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:29:58" (1/3) ... [2018-09-15 11:30:05,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab81059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:30:05, skipping insertion in model container [2018-09-15 11:30:05,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:29:59" (2/3) ... [2018-09-15 11:30:05,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab81059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:30:05, skipping insertion in model container [2018-09-15 11:30:05,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:30:05" (3/3) ... [2018-09-15 11:30:05,430 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label02_true-unreach-call.c [2018-09-15 11:30:05,442 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 11:30:05,454 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 11:30:05,524 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 11:30:05,525 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 11:30:05,525 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 11:30:05,526 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 11:30:05,526 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 11:30:05,526 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 11:30:05,526 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 11:30:05,526 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 11:30:05,526 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 11:30:05,572 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-15 11:30:05,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-15 11:30:05,586 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:30:05,587 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] [2018-09-15 11:30:05,588 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:30:05,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1008235991, now seen corresponding path program 1 times [2018-09-15 11:30:05,595 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:30:05,596 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 62 with the following transitions: [2018-09-15 11:30:05,599 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], [389], [391], [1088], [1092], [1098], [1102], [1109], [1110], [1111], [1113] [2018-09-15 11:30:05,676 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:30:05,676 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:30:09,099 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:30:09,101 INFO L272 AbstractInterpreter]: Visited 60 different actions 60 times. Never merged. Never widened. Never found a fixpoint. Largest state had 27 variables. [2018-09-15 11:30:09,117 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:30:10,470 INFO L232 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 75.67% of their original sizes. [2018-09-15 11:30:10,470 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:30:10,833 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:30:10,835 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:30:10,835 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 11:30:10,836 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:30:10,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 11:30:10,851 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 11:30:10,852 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:30:10,855 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 6 states. [2018-09-15 11:30:16,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:30:16,034 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2018-09-15 11:30:16,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 11:30:16,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2018-09-15 11:30:16,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:30:16,057 INFO L225 Difference]: With dead ends: 776 [2018-09-15 11:30:16,057 INFO L226 Difference]: Without dead ends: 481 [2018-09-15 11:30:16,066 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 60 GetRequests, 56 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 11:30:16,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2018-09-15 11:30:16,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2018-09-15 11:30:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2018-09-15 11:30:16,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 682 transitions. [2018-09-15 11:30:16,160 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 682 transitions. Word has length 61 [2018-09-15 11:30:16,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:30:16,160 INFO L480 AbstractCegarLoop]: Abstraction has 479 states and 682 transitions. [2018-09-15 11:30:16,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 11:30:16,161 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 682 transitions. [2018-09-15 11:30:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-09-15 11:30:16,176 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:30:16,177 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:30:16,177 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:30:16,179 INFO L82 PathProgramCache]: Analyzing trace with hash -627570367, now seen corresponding path program 1 times [2018-09-15 11:30:16,179 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:30:16,180 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2018-09-15 11:30:16,180 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], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-09-15 11:30:16,194 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:30:16,195 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:30:23,382 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:31:33,664 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:31:33,664 INFO L272 AbstractInterpreter]: Visited 124 different actions 359 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-09-15 11:31:33,704 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:31:51,747 INFO L232 lantSequenceWeakener]: Weakened 176 states. On average, predicates are now at 74.01% of their original sizes. [2018-09-15 11:31:51,747 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:31:54,672 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:31:54,672 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:31:54,673 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:31:54,673 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:31:54,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:31:54,675 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:31:54,676 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:31:54,676 INFO L87 Difference]: Start difference. First operand 479 states and 682 transitions. Second operand 11 states. [2018-09-15 11:32:12,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:32:12,671 INFO L93 Difference]: Finished difference Result 957 states and 1541 transitions. [2018-09-15 11:32:12,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 11:32:12,674 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 178 [2018-09-15 11:32:12,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:32:12,680 INFO L225 Difference]: With dead ends: 957 [2018-09-15 11:32:12,681 INFO L226 Difference]: Without dead ends: 674 [2018-09-15 11:32:12,687 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 185 GetRequests, 119 SyntacticMatches, 49 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 11:32:12,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2018-09-15 11:32:12,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 670. [2018-09-15 11:32:12,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2018-09-15 11:32:12,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 887 transitions. [2018-09-15 11:32:12,736 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 887 transitions. Word has length 178 [2018-09-15 11:32:12,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:32:12,737 INFO L480 AbstractCegarLoop]: Abstraction has 670 states and 887 transitions. [2018-09-15 11:32:12,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:32:12,737 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 887 transitions. [2018-09-15 11:32:12,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-09-15 11:32:12,743 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:32:12,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:12,744 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:32:12,744 INFO L82 PathProgramCache]: Analyzing trace with hash 912540149, now seen corresponding path program 1 times [2018-09-15 11:32:12,744 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:32:12,744 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 189 with the following transitions: [2018-09-15 11:32:12,745 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], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-09-15 11:32:12,752 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:32:12,752 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:32:53,130 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:32:53,131 INFO L272 AbstractInterpreter]: Visited 134 different actions 262 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-09-15 11:32:53,151 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:33:11,673 INFO L232 lantSequenceWeakener]: Weakened 186 states. On average, predicates are now at 73.96% of their original sizes. [2018-09-15 11:33:11,673 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:33:14,183 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:33:14,184 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:33:14,184 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:33:14,184 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:33:14,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:33:14,185 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:33:14,186 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:33:14,186 INFO L87 Difference]: Start difference. First operand 670 states and 887 transitions. Second operand 11 states. [2018-09-15 11:33:26,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:33:26,039 INFO L93 Difference]: Finished difference Result 1149 states and 1747 transitions. [2018-09-15 11:33:26,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 11:33:26,042 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 188 [2018-09-15 11:33:26,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:33:26,048 INFO L225 Difference]: With dead ends: 1149 [2018-09-15 11:33:26,048 INFO L226 Difference]: Without dead ends: 866 [2018-09-15 11:33:26,050 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 195 GetRequests, 129 SyntacticMatches, 49 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 11:33:26,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2018-09-15 11:33:26,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 861. [2018-09-15 11:33:26,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2018-09-15 11:33:26,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1092 transitions. [2018-09-15 11:33:26,094 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1092 transitions. Word has length 188 [2018-09-15 11:33:26,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:33:26,095 INFO L480 AbstractCegarLoop]: Abstraction has 861 states and 1092 transitions. [2018-09-15 11:33:26,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:33:26,095 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1092 transitions. [2018-09-15 11:33:26,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-09-15 11:33:26,099 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:33:26,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:26,100 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:33:26,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1808581075, now seen corresponding path program 1 times [2018-09-15 11:33:26,100 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:33:26,101 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2018-09-15 11:33:26,101 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], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-09-15 11:33:26,107 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:33:26,107 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:34:06,421 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:34:06,422 INFO L272 AbstractInterpreter]: Visited 139 different actions 272 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-09-15 11:34:06,427 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown