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/Problem16_label55_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:30:23,644 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:30:23,648 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:30:23,660 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:30:23,660 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:30:23,662 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:30:23,663 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:30:23,665 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:30:23,666 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:30:23,667 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:30:23,668 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:30:23,668 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:30:23,669 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:30:23,670 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:30:23,672 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:30:23,672 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:30:23,673 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:30:23,675 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:30:23,677 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:30:23,679 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:30:23,680 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:30:23,681 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:30:23,684 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:30:23,684 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:30:23,684 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:30:23,685 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:30:23,686 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:30:23,687 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:30:23,688 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:30:23,692 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:30:23,693 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:30:23,693 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:30:23,694 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:30:23,694 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:30:23,695 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:30:23,699 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:30:23,699 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 12:30:23,732 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:30:23,732 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:30:23,733 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:30:23,733 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:30:23,733 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:30:23,734 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:30:23,734 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:30:23,734 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:30:23,734 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:30:23,735 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:30:23,735 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:30:23,736 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:30:23,736 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:30:23,736 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:30:23,737 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:30:23,737 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:30:23,738 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:30:23,738 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:30:23,738 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:30:23,738 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:30:23,740 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:30:23,740 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:30:23,740 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:30:23,740 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:30:23,740 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:30:23,741 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:30:23,741 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:30:23,741 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:30:23,741 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:30:23,742 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:30:23,742 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:30:23,742 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:30:23,742 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:30:23,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:30:23,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:30:23,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:30:23,833 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:30:23,833 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:30:23,834 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label55_true-unreach-call.c [2018-09-15 12:30:24,189 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b38e5f24/168f912dd84a4f15ae6390643afe73a8/FLAGf88fd99ca [2018-09-15 12:30:24,537 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:30:24,538 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label55_true-unreach-call.c [2018-09-15 12:30:24,559 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b38e5f24/168f912dd84a4f15ae6390643afe73a8/FLAGf88fd99ca [2018-09-15 12:30:24,579 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b38e5f24/168f912dd84a4f15ae6390643afe73a8 [2018-09-15 12:30:24,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:30:24,595 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:30:24,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:30:24,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:30:24,604 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:30:24,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:30:24" (1/1) ... [2018-09-15 12:30:24,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f57d78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:24, skipping insertion in model container [2018-09-15 12:30:24,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:30:24" (1/1) ... [2018-09-15 12:30:24,621 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:30:25,411 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:30:25,430 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:30:25,669 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:30:25,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25 WrapperNode [2018-09-15 12:30:25,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:30:25,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:30:25,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:30:25,786 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:30:25,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25" (1/1) ... [2018-09-15 12:30:25,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25" (1/1) ... [2018-09-15 12:30:25,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:30:25,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:30:25,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:30:25,994 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:30:26,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25" (1/1) ... [2018-09-15 12:30:26,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25" (1/1) ... [2018-09-15 12:30:26,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25" (1/1) ... [2018-09-15 12:30:26,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25" (1/1) ... [2018-09-15 12:30:26,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25" (1/1) ... [2018-09-15 12:30:26,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25" (1/1) ... [2018-09-15 12:30:26,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25" (1/1) ... [2018-09-15 12:30:26,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:30:26,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:30:26,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:30:26,414 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:30:26,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25" (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 12:30:26,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:30:26,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:30:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:30:26,480 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:30:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:30:26,480 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:30:26,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:30:26,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:30:26,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:30:26,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:30:32,605 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:30:32,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:30:32 BoogieIcfgContainer [2018-09-15 12:30:32,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:30:32,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:30:32,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:30:32,611 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:30:32,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:30:24" (1/3) ... [2018-09-15 12:30:32,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a3470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:30:32, skipping insertion in model container [2018-09-15 12:30:32,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:30:25" (2/3) ... [2018-09-15 12:30:32,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a3470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:30:32, skipping insertion in model container [2018-09-15 12:30:32,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:30:32" (3/3) ... [2018-09-15 12:30:32,615 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label55_true-unreach-call.c [2018-09-15 12:30:32,624 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:30:32,631 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:30:32,687 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:30:32,687 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:30:32,688 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:30:32,688 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:30:32,688 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:30:32,688 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:30:32,688 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:30:32,688 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:30:32,689 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:30:32,730 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-15 12:30:32,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-15 12:30:32,743 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:30:32,744 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] [2018-09-15 12:30:32,746 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:30:32,751 INFO L82 PathProgramCache]: Analyzing trace with hash 886904748, now seen corresponding path program 1 times [2018-09-15 12:30:32,753 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:30:32,754 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 65 with the following transitions: [2018-09-15 12:30:32,757 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-15 12:30:32,815 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:30:32,815 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:30:34,311 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:30:34,313 INFO L272 AbstractInterpreter]: Visited 63 different actions 63 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:30:34,332 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:30:35,037 INFO L232 lantSequenceWeakener]: Weakened 62 states. On average, predicates are now at 80.76% of their original sizes. [2018-09-15 12:30:35,037 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:30:35,321 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:30:35,322 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:30:35,323 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:30:35,323 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:30:35,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:30:35,335 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:30:35,336 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:30:35,339 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-15 12:30:44,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:30:44,775 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-15 12:30:44,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:30:44,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-09-15 12:30:44,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:30:44,800 INFO L225 Difference]: With dead ends: 1158 [2018-09-15 12:30:44,800 INFO L226 Difference]: Without dead ends: 746 [2018-09-15 12:30:44,811 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 63 GetRequests, 59 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 12:30:44,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-15 12:30:44,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-15 12:30:44,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-15 12:30:44,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-15 12:30:44,916 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 64 [2018-09-15 12:30:44,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:30:44,917 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-15 12:30:44,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:30:44,918 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-15 12:30:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-15 12:30:44,930 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:30:44,930 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:44,930 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:30:44,931 INFO L82 PathProgramCache]: Analyzing trace with hash 948196270, now seen corresponding path program 1 times [2018-09-15 12:30:44,931 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:30:44,931 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-09-15 12:30:44,933 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:30:44,944 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:30:44,944 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:30:48,183 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:30:53,904 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:30:53,904 INFO L272 AbstractInterpreter]: Visited 99 different actions 191 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 12:30:53,948 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:30:57,706 INFO L232 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 78.76% of their original sizes. [2018-09-15 12:30:57,707 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:30:59,926 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:30:59,927 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:30:59,927 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:30:59,927 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:30:59,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:30:59,930 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:30:59,930 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:30:59,930 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-15 12:31:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:31:20,445 INFO L93 Difference]: Finished difference Result 1826 states and 3140 transitions. [2018-09-15 12:31:20,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:31:20,446 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2018-09-15 12:31:20,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:31:20,455 INFO L225 Difference]: With dead ends: 1826 [2018-09-15 12:31:20,456 INFO L226 Difference]: Without dead ends: 1426 [2018-09-15 12:31:20,460 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 162 GetRequests, 94 SyntacticMatches, 52 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:31:20,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2018-09-15 12:31:20,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1423. [2018-09-15 12:31:20,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2018-09-15 12:31:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1772 transitions. [2018-09-15 12:31:20,536 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1772 transitions. Word has length 156 [2018-09-15 12:31:20,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:31:20,537 INFO L480 AbstractCegarLoop]: Abstraction has 1423 states and 1772 transitions. [2018-09-15 12:31:20,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:31:20,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1772 transitions. [2018-09-15 12:31:20,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-09-15 12:31:20,543 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:31:20,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:20,544 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:31:20,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1708134234, now seen corresponding path program 1 times [2018-09-15 12:31:20,544 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:31:20,544 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-09-15 12:31:20,545 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:31:20,552 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:31:20,552 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:31:23,594 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:31:30,091 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:31:30,091 INFO L272 AbstractInterpreter]: Visited 135 different actions 263 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 12:31:30,098 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:31:33,314 INFO L232 lantSequenceWeakener]: Weakened 190 states. On average, predicates are now at 78.48% of their original sizes. [2018-09-15 12:31:33,314 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:31:34,725 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:31:34,725 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:31:34,725 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:31:34,726 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:31:34,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:31:34,727 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:31:34,727 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:31:34,728 INFO L87 Difference]: Start difference. First operand 1423 states and 1772 transitions. Second operand 11 states. [2018-09-15 12:31:50,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:31:50,785 INFO L93 Difference]: Finished difference Result 2505 states and 3837 transitions. [2018-09-15 12:31:50,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:31:50,787 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 192 [2018-09-15 12:31:50,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:31:50,800 INFO L225 Difference]: With dead ends: 2505 [2018-09-15 12:31:50,800 INFO L226 Difference]: Without dead ends: 2105 [2018-09-15 12:31:50,803 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 198 GetRequests, 130 SyntacticMatches, 52 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:31:50,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2018-09-15 12:31:50,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2102. [2018-09-15 12:31:50,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2102 states. [2018-09-15 12:31:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2469 transitions. [2018-09-15 12:31:50,883 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2469 transitions. Word has length 192 [2018-09-15 12:31:50,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:31:50,884 INFO L480 AbstractCegarLoop]: Abstraction has 2102 states and 2469 transitions. [2018-09-15 12:31:50,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:31:50,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2469 transitions. [2018-09-15 12:31:50,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-09-15 12:31:50,896 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:31:50,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:50,896 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:31:50,897 INFO L82 PathProgramCache]: Analyzing trace with hash 904826095, now seen corresponding path program 1 times [2018-09-15 12:31:50,897 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:31:50,897 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-09-15 12:31:50,898 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1004], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:31:50,913 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:31:50,914 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:31:54,148 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:32:01,558 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:32:01,558 INFO L272 AbstractInterpreter]: Visited 160 different actions 313 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 12:32:01,600 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:32:04,937 INFO L232 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 78.34% of their original sizes. [2018-09-15 12:32:04,938 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:32:06,327 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:32:06,328 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:32:06,328 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:32:06,328 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:32:06,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:32:06,330 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:32:06,330 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:32:06,331 INFO L87 Difference]: Start difference. First operand 2102 states and 2469 transitions. Second operand 12 states. [2018-09-15 12:32:21,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:32:21,531 INFO L93 Difference]: Finished difference Result 3184 states and 4534 transitions. [2018-09-15 12:32:21,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:32:21,532 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 217 [2018-09-15 12:32:21,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:32:21,545 INFO L225 Difference]: With dead ends: 3184 [2018-09-15 12:32:21,545 INFO L226 Difference]: Without dead ends: 2784 [2018-09-15 12:32:21,549 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 224 GetRequests, 154 SyntacticMatches, 52 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:32:21,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2018-09-15 12:32:21,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2781. [2018-09-15 12:32:21,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2781 states. [2018-09-15 12:32:21,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3166 transitions. [2018-09-15 12:32:21,649 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3166 transitions. Word has length 217 [2018-09-15 12:32:21,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:32:21,649 INFO L480 AbstractCegarLoop]: Abstraction has 2781 states and 3166 transitions. [2018-09-15 12:32:21,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:32:21,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3166 transitions. [2018-09-15 12:32:21,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-09-15 12:32:21,655 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:32:21,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:21,656 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:32:21,656 INFO L82 PathProgramCache]: Analyzing trace with hash -292399585, now seen corresponding path program 1 times [2018-09-15 12:32:21,656 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:32:21,657 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 258 with the following transitions: [2018-09-15 12:32:21,657 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1164], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:32:21,663 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:32:21,663 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:32:40,431 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:32:40,431 INFO L272 AbstractInterpreter]: Visited 200 different actions 393 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 12:32:40,437 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:32:43,987 INFO L232 lantSequenceWeakener]: Weakened 255 states. On average, predicates are now at 78.17% of their original sizes. [2018-09-15 12:32:43,987 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:32:45,456 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:32:45,457 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:32:45,457 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:32:45,457 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:32:45,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:32:45,458 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:32:45,459 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:32:45,459 INFO L87 Difference]: Start difference. First operand 2781 states and 3166 transitions. Second operand 12 states. [2018-09-15 12:33:02,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:33:02,077 INFO L93 Difference]: Finished difference Result 3863 states and 5231 transitions. [2018-09-15 12:33:02,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:33:02,078 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 257 [2018-09-15 12:33:02,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:33:02,094 INFO L225 Difference]: With dead ends: 3863 [2018-09-15 12:33:02,094 INFO L226 Difference]: Without dead ends: 3463 [2018-09-15 12:33:02,098 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 264 GetRequests, 194 SyntacticMatches, 52 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:33:02,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2018-09-15 12:33:02,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3460. [2018-09-15 12:33:02,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3460 states. [2018-09-15 12:33:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 3863 transitions. [2018-09-15 12:33:02,210 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 3863 transitions. Word has length 257 [2018-09-15 12:33:02,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:33:02,211 INFO L480 AbstractCegarLoop]: Abstraction has 3460 states and 3863 transitions. [2018-09-15 12:33:02,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:33:02,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 3863 transitions. [2018-09-15 12:33:02,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-09-15 12:33:02,217 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:33:02,217 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:33:02,218 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:33:02,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1248523096, now seen corresponding path program 1 times [2018-09-15 12:33:02,218 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:33:02,219 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 285 with the following transitions: [2018-09-15 12:33:02,219 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:33:02,222 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:33:02,223 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:33:03,690 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:33:22,782 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:33:22,783 INFO L272 AbstractInterpreter]: Visited 136 different actions 665 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:33:22,811 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:33:25,092 INFO L232 lantSequenceWeakener]: Weakened 282 states. On average, predicates are now at 78.12% of their original sizes. [2018-09-15 12:33:25,092 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:33:26,330 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:33:26,331 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:33:26,331 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:33:26,331 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:33:26,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:33:26,332 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:33:26,332 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:33:26,333 INFO L87 Difference]: Start difference. First operand 3460 states and 3863 transitions. Second operand 11 states. [2018-09-15 12:33:44,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:33:44,358 INFO L93 Difference]: Finished difference Result 4496 states and 5839 transitions. [2018-09-15 12:33:44,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-15 12:33:44,370 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 284 [2018-09-15 12:33:44,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:33:44,396 INFO L225 Difference]: With dead ends: 4496 [2018-09-15 12:33:44,397 INFO L226 Difference]: Without dead ends: 4096 [2018-09-15 12:33:44,401 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 293 GetRequests, 222 SyntacticMatches, 52 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2018-09-15 12:33:44,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4096 states. [2018-09-15 12:33:44,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4096 to 3814. [2018-09-15 12:33:44,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3814 states. [2018-09-15 12:33:44,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 4252 transitions. [2018-09-15 12:33:44,553 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 4252 transitions. Word has length 284 [2018-09-15 12:33:44,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:33:44,554 INFO L480 AbstractCegarLoop]: Abstraction has 3814 states and 4252 transitions. [2018-09-15 12:33:44,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:33:44,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 4252 transitions. [2018-09-15 12:33:44,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-09-15 12:33:44,561 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:33:44,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:44,562 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:33:44,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1079118534, now seen corresponding path program 1 times [2018-09-15 12:33:44,562 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:33:44,562 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 305 with the following transitions: [2018-09-15 12:33:44,563 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:33:44,568 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:33:44,568 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:34:10,749 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:34:10,750 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 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 12:34:10,757 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:34:16,434 INFO L232 lantSequenceWeakener]: Weakened 302 states. On average, predicates are now at 78.03% of their original sizes. [2018-09-15 12:34:16,435 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:34:17,847 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:34:17,848 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:34:17,848 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 12:34:17,848 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:34:17,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 12:34:17,850 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 12:34:17,850 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 12:34:17,851 INFO L87 Difference]: Start difference. First operand 3814 states and 4252 transitions. Second operand 13 states. Received shutdown request... [2018-09-15 12:34:23,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-15 12:34:23,765 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:34:23,770 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:34:23,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:34:23 BoogieIcfgContainer [2018-09-15 12:34:23,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:34:23,772 INFO L168 Benchmark]: Toolchain (without parser) took 239178.90 ms. Allocated memory was 1.5 GB in the beginning and 4.3 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 509.3 MB. Max. memory is 7.1 GB. [2018-09-15 12:34:23,774 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 12:34:23,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1188.53 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: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. [2018-09-15 12:34:23,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 206.63 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-15 12:34:23,776 INFO L168 Benchmark]: Boogie Preprocessor took 420.77 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 844.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -994.1 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-15 12:34:23,777 INFO L168 Benchmark]: RCFGBuilder took 6192.93 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: 273.7 MB). Peak memory consumption was 273.7 MB. Max. memory is 7.1 GB. [2018-09-15 12:34:23,777 INFO L168 Benchmark]: TraceAbstraction took 231163.66 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 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 255.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:34:23,782 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1188.53 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: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 206.63 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 420.77 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 844.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -994.1 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6192.93 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: 273.7 MB). Peak memory consumption was 273.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231163.66 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 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 255.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 178]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 178). Cancelled while BasicCegarLoop was constructing difference of abstraction (3814states) and FLOYD_HOARE automaton (currently 8 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (750 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 231.0s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 101.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2449 SDtfs, 10790 SDslu, 1708 SDs, 0 SdLazy, 22210 SolverSat, 3558 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 92.8s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1512 GetRequests, 1093 SyntacticMatches, 312 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3025 ImplicationChecksByTransitivity, 10.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3814occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 96.4s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.99558636511824 AbsIntWeakeningRatio, 0.09543285616905249 AbsIntAvgWeakeningVarsNumRemoved, 114.04839809134288 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 296 StatesRemovedByMinimization, 6 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/Problem16_label55_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-34-23-796.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label55_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-34-23-796.csv Completed graceful shutdown