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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label25_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 22:51:18,649 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 22:51:18,651 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 22:51:18,669 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 22:51:18,669 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 22:51:18,671 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 22:51:18,673 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 22:51:18,675 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 22:51:18,677 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 22:51:18,679 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 22:51:18,680 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 22:51:18,682 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 22:51:18,683 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 22:51:18,684 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 22:51:18,685 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 22:51:18,688 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 22:51:18,689 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 22:51:18,691 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 22:51:18,698 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 22:51:18,704 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 22:51:18,705 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 22:51:18,706 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 22:51:18,708 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 22:51:18,709 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 22:51:18,709 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 22:51:18,710 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 22:51:18,711 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 22:51:18,711 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 22:51:18,712 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 22:51:18,713 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 22:51:18,713 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 22:51:18,714 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 22:51:18,714 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 22:51:18,715 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 22:51:18,715 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 22:51:18,716 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 22:51:18,717 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 22:51:18,743 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 22:51:18,744 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 22:51:18,745 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 22:51:18,746 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 22:51:18,746 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 22:51:18,746 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 22:51:18,746 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 22:51:18,746 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 22:51:18,747 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 22:51:18,747 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 22:51:18,747 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 22:51:18,748 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 22:51:18,748 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 22:51:18,749 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 22:51:18,749 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 22:51:18,749 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 22:51:18,749 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 22:51:18,749 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 22:51:18,749 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 22:51:18,750 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 22:51:18,750 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 22:51:18,750 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 22:51:18,750 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 22:51:18,752 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 22:51:18,752 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 22:51:18,752 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 22:51:18,753 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 22:51:18,753 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 22:51:18,753 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 22:51:18,753 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 22:51:18,753 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 22:51:18,754 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 22:51:18,754 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 22:51:18,823 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 22:51:18,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 22:51:18,840 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 22:51:18,842 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 22:51:18,842 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 22:51:18,843 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label25_true-unreach-call_false-termination.c [2018-09-15 22:51:19,202 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92e999d71/f93151bf375e4d7d872f0db4e35e08be/FLAG720887480 [2018-09-15 22:51:19,489 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 22:51:19,490 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label25_true-unreach-call_false-termination.c [2018-09-15 22:51:19,508 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92e999d71/f93151bf375e4d7d872f0db4e35e08be/FLAG720887480 [2018-09-15 22:51:19,529 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92e999d71/f93151bf375e4d7d872f0db4e35e08be [2018-09-15 22:51:19,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 22:51:19,545 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 22:51:19,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 22:51:19,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 22:51:19,554 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 22:51:19,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:51:19" (1/1) ... [2018-09-15 22:51:19,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a77e263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:19, skipping insertion in model container [2018-09-15 22:51:19,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:51:19" (1/1) ... [2018-09-15 22:51:19,572 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 22:51:20,099 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:51:20,121 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 22:51:20,312 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:51:20,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20 WrapperNode [2018-09-15 22:51:20,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 22:51:20,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 22:51:20,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 22:51:20,359 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 22:51:20,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20" (1/1) ... [2018-09-15 22:51:20,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20" (1/1) ... [2018-09-15 22:51:20,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 22:51:20,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 22:51:20,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 22:51:20,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 22:51:20,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20" (1/1) ... [2018-09-15 22:51:20,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20" (1/1) ... [2018-09-15 22:51:20,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20" (1/1) ... [2018-09-15 22:51:20,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20" (1/1) ... [2018-09-15 22:51:20,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20" (1/1) ... [2018-09-15 22:51:20,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20" (1/1) ... [2018-09-15 22:51:20,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20" (1/1) ... [2018-09-15 22:51:20,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 22:51:20,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 22:51:20,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 22:51:20,791 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 22:51:20,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20" (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 22:51:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 22:51:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 22:51:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 22:51:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 22:51:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 22:51:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 22:51:20,869 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 22:51:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 22:51:24,673 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 22:51:24,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:51:24 BoogieIcfgContainer [2018-09-15 22:51:24,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 22:51:24,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 22:51:24,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 22:51:24,679 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 22:51:24,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 10:51:19" (1/3) ... [2018-09-15 22:51:24,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112ddca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:51:24, skipping insertion in model container [2018-09-15 22:51:24,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:51:20" (2/3) ... [2018-09-15 22:51:24,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112ddca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:51:24, skipping insertion in model container [2018-09-15 22:51:24,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:51:24" (3/3) ... [2018-09-15 22:51:24,683 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label25_true-unreach-call_false-termination.c [2018-09-15 22:51:24,694 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 22:51:24,703 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 22:51:24,755 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 22:51:24,756 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 22:51:24,756 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 22:51:24,757 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 22:51:24,757 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 22:51:24,757 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 22:51:24,757 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 22:51:24,758 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 22:51:24,758 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 22:51:24,786 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-15 22:51:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-09-15 22:51:24,798 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:51:24,799 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 22:51:24,800 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:51:24,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1667108559, now seen corresponding path program 1 times [2018-09-15 22:51:24,807 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:51:24,808 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 72 with the following transitions: [2018-09-15 22:51:24,811 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [952], [956], [962], [966], [973], [974], [975], [977] [2018-09-15 22:51:24,856 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:51:24,857 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:51:26,610 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:51:26,612 INFO L272 AbstractInterpreter]: Visited 70 different actions 70 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 22:51:26,659 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:51:27,520 INFO L232 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 80.59% of their original sizes. [2018-09-15 22:51:27,521 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:51:27,767 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:51:27,769 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:51:27,769 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 22:51:27,769 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:51:27,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 22:51:27,782 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 22:51:27,783 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 22:51:27,785 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-09-15 22:51:30,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:51:30,559 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-09-15 22:51:30,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 22:51:30,562 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2018-09-15 22:51:30,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:51:30,579 INFO L225 Difference]: With dead ends: 693 [2018-09-15 22:51:30,580 INFO L226 Difference]: Without dead ends: 436 [2018-09-15 22:51:30,587 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 22:51:30,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-09-15 22:51:30,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-09-15 22:51:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-15 22:51:30,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-09-15 22:51:30,662 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 71 [2018-09-15 22:51:30,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:51:30,663 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-09-15 22:51:30,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 22:51:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-09-15 22:51:30,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-15 22:51:30,672 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:51:30,672 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 22:51:30,673 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:51:30,673 INFO L82 PathProgramCache]: Analyzing trace with hash -238330525, now seen corresponding path program 1 times [2018-09-15 22:51:30,673 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:51:30,674 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-09-15 22:51:30,674 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 22:51:30,680 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:51:30,680 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:51:38,783 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:51:38,784 INFO L272 AbstractInterpreter]: Visited 92 different actions 177 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 22:51:38,794 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:51:43,205 INFO L232 lantSequenceWeakener]: Weakened 153 states. On average, predicates are now at 78.83% of their original sizes. [2018-09-15 22:51:43,205 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:51:43,662 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:51:43,662 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:51:43,662 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 22:51:43,662 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:51:43,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 22:51:43,664 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 22:51:43,664 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 22:51:43,665 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 11 states. [2018-09-15 22:51:47,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:51:47,904 INFO L93 Difference]: Finished difference Result 1051 states and 1763 transitions. [2018-09-15 22:51:47,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 22:51:47,905 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2018-09-15 22:51:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:51:47,915 INFO L225 Difference]: With dead ends: 1051 [2018-09-15 22:51:47,915 INFO L226 Difference]: Without dead ends: 806 [2018-09-15 22:51:47,963 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 162 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 22:51:47,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-09-15 22:51:48,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 803. [2018-09-15 22:51:48,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-09-15 22:51:48,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1002 transitions. [2018-09-15 22:51:48,017 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1002 transitions. Word has length 156 [2018-09-15 22:51:48,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:51:48,018 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1002 transitions. [2018-09-15 22:51:48,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 22:51:48,018 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1002 transitions. [2018-09-15 22:51:48,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-09-15 22:51:48,028 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:51:48,028 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 22:51:48,029 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:51:48,029 INFO L82 PathProgramCache]: Analyzing trace with hash -318288329, now seen corresponding path program 1 times [2018-09-15 22:51:48,029 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:51:48,029 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 183 with the following transitions: [2018-09-15 22:51:48,030 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 22:51:48,035 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:51:48,035 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:52:14,198 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:52:14,198 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 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 22:52:14,203 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:52:34,333 INFO L232 lantSequenceWeakener]: Weakened 179 states. On average, predicates are now at 78.6% of their original sizes. [2018-09-15 22:52:34,334 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:52:34,491 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:52:34,491 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:52:34,491 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 22:52:34,491 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:52:34,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 22:52:34,492 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 22:52:34,493 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 22:52:34,493 INFO L87 Difference]: Start difference. First operand 803 states and 1002 transitions. Second operand 11 states. [2018-09-15 22:52:37,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:52:37,783 INFO L93 Difference]: Finished difference Result 1236 states and 1786 transitions. [2018-09-15 22:52:37,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 22:52:37,797 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 182 [2018-09-15 22:52:37,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:52:37,809 INFO L225 Difference]: With dead ends: 1236 [2018-09-15 22:52:37,809 INFO L226 Difference]: Without dead ends: 991 [2018-09-15 22:52:37,813 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 189 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 22:52:37,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2018-09-15 22:52:37,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 988. [2018-09-15 22:52:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2018-09-15 22:52:37,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1200 transitions. [2018-09-15 22:52:37,865 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1200 transitions. Word has length 182 [2018-09-15 22:52:37,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:52:37,866 INFO L480 AbstractCegarLoop]: Abstraction has 988 states and 1200 transitions. [2018-09-15 22:52:37,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 22:52:37,866 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1200 transitions. [2018-09-15 22:52:37,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-09-15 22:52:37,875 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:52:37,876 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:37,876 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:52:37,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1933013051, now seen corresponding path program 1 times [2018-09-15 22:52:37,877 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:52:37,878 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 268 with the following transitions: [2018-09-15 22:52:37,878 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 22:52:37,885 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:52:37,885 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:54:10,406 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:54:10,407 INFO L272 AbstractInterpreter]: Visited 119 different actions 466 times. Merged at 7 different actions 23 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 22:54:10,411 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown