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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 20:28:05,734 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 20:28:05,737 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 20:28:05,752 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 20:28:05,753 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 20:28:05,754 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 20:28:05,755 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 20:28:05,757 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 20:28:05,759 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 20:28:05,760 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 20:28:05,764 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 20:28:05,764 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 20:28:05,765 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 20:28:05,769 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 20:28:05,771 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 20:28:05,772 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 20:28:05,773 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 20:28:05,774 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 20:28:05,776 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 20:28:05,777 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 20:28:05,778 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 20:28:05,781 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 20:28:05,783 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 20:28:05,783 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 20:28:05,784 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 20:28:05,785 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 20:28:05,786 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 20:28:05,787 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 20:28:05,788 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 20:28:05,789 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 20:28:05,789 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 20:28:05,790 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 20:28:05,790 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 20:28:05,793 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 20:28:05,794 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 20:28:05,796 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 20:28:05,796 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-15 20:28:05,818 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 20:28:05,819 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 20:28:05,820 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 20:28:05,820 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 20:28:05,820 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 20:28:05,820 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 20:28:05,820 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 20:28:05,821 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 20:28:05,821 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 20:28:05,821 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 20:28:05,821 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 20:28:05,821 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 20:28:05,822 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 20:28:05,822 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 20:28:05,822 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 20:28:05,823 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 20:28:05,823 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 20:28:05,823 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 20:28:05,823 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 20:28:05,823 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 20:28:05,824 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 20:28:05,824 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 20:28:05,824 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 20:28:05,824 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 20:28:05,824 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 20:28:05,825 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 20:28:05,825 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 20:28:05,825 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 20:28:05,825 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 20:28:05,826 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 20:28:05,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 20:28:05,826 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 20:28:05,826 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 20:28:05,826 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 20:28:05,875 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 20:28:05,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 20:28:05,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 20:28:05,896 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 20:28:05,896 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 20:28:05,897 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label35_true-unreach-call.c [2018-09-15 20:28:06,271 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec7d6da86/f5d98874177b49588d3a5f12d30a0381/FLAG94c55682e [2018-09-15 20:28:06,700 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 20:28:06,704 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label35_true-unreach-call.c [2018-09-15 20:28:06,732 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec7d6da86/f5d98874177b49588d3a5f12d30a0381/FLAG94c55682e [2018-09-15 20:28:06,758 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec7d6da86/f5d98874177b49588d3a5f12d30a0381 [2018-09-15 20:28:06,773 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 20:28:06,777 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 20:28:06,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 20:28:06,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 20:28:06,787 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 20:28:06,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:28:06" (1/1) ... [2018-09-15 20:28:06,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:06, skipping insertion in model container [2018-09-15 20:28:06,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:28:06" (1/1) ... [2018-09-15 20:28:06,805 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 20:28:07,565 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 20:28:07,590 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 20:28:07,978 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 20:28:08,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08 WrapperNode [2018-09-15 20:28:08,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 20:28:08,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 20:28:08,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 20:28:08,070 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 20:28:08,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08" (1/1) ... [2018-09-15 20:28:08,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08" (1/1) ... [2018-09-15 20:28:08,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 20:28:08,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 20:28:08,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 20:28:08,305 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 20:28:08,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08" (1/1) ... [2018-09-15 20:28:08,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08" (1/1) ... [2018-09-15 20:28:08,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08" (1/1) ... [2018-09-15 20:28:08,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08" (1/1) ... [2018-09-15 20:28:08,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08" (1/1) ... [2018-09-15 20:28:08,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08" (1/1) ... [2018-09-15 20:28:08,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08" (1/1) ... [2018-09-15 20:28:08,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 20:28:08,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 20:28:08,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 20:28:08,866 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 20:28:08,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08" (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 20:28:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 20:28:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 20:28:08,959 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 20:28:08,959 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 20:28:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 20:28:08,960 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 20:28:08,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 20:28:08,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 20:28:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 20:28:08,964 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 20:28:16,373 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 20:28:16,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:28:16 BoogieIcfgContainer [2018-09-15 20:28:16,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 20:28:16,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 20:28:16,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 20:28:16,379 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 20:28:16,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:28:06" (1/3) ... [2018-09-15 20:28:16,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9dd56da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:28:16, skipping insertion in model container [2018-09-15 20:28:16,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:28:08" (2/3) ... [2018-09-15 20:28:16,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9dd56da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:28:16, skipping insertion in model container [2018-09-15 20:28:16,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:28:16" (3/3) ... [2018-09-15 20:28:16,384 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label35_true-unreach-call.c [2018-09-15 20:28:16,395 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 20:28:16,405 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 20:28:16,466 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 20:28:16,467 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 20:28:16,467 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 20:28:16,467 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 20:28:16,467 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 20:28:16,468 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 20:28:16,468 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 20:28:16,468 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 20:28:16,468 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 20:28:16,506 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-15 20:28:16,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-15 20:28:16,516 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:28:16,517 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] [2018-09-15 20:28:16,518 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:28:16,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1960867948, now seen corresponding path program 1 times [2018-09-15 20:28:16,525 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:28:16,526 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-09-15 20:28:16,530 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], [463], [465], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-15 20:28:16,600 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:28:16,600 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:28:18,716 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:28:18,718 INFO L272 AbstractInterpreter]: Visited 47 different actions 47 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 20:28:18,753 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:28:19,674 INFO L232 lantSequenceWeakener]: Weakened 46 states. On average, predicates are now at 80.39% of their original sizes. [2018-09-15 20:28:19,674 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:28:20,008 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:28:20,011 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:28:20,011 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 20:28:20,011 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:28:20,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 20:28:20,026 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 20:28:20,026 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 20:28:20,030 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-15 20:28:35,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:28:35,710 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-15 20:28:35,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 20:28:35,714 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-09-15 20:28:35,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:28:35,738 INFO L225 Difference]: With dead ends: 1158 [2018-09-15 20:28:35,738 INFO L226 Difference]: Without dead ends: 746 [2018-09-15 20:28:35,746 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 20:28:35,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-15 20:28:35,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-15 20:28:35,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-15 20:28:35,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-15 20:28:35,867 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 48 [2018-09-15 20:28:35,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:28:35,870 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-15 20:28:35,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 20:28:35,870 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-15 20:28:35,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-15 20:28:35,882 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:28:35,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:28:35,882 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:28:35,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1008425326, now seen corresponding path program 1 times [2018-09-15 20:28:35,883 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:28:35,883 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-09-15 20:28:35,884 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], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [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 20:28:35,897 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:28:35,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:28:40,951 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 20:28:51,415 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:28:51,416 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 20:28:51,423 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:28:53,773 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 78.38% of their original sizes. [2018-09-15 20:28:53,773 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:28:55,532 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:28:55,532 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:28:55,532 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-15 20:28:55,532 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:28:55,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-15 20:28:55,534 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-15 20:28:55,534 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2018-09-15 20:28:55,535 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 19 states. [2018-09-15 20:29:32,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:29:32,606 INFO L93 Difference]: Finished difference Result 2680 states and 4847 transitions. [2018-09-15 20:29:32,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-15 20:29:32,607 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 140 [2018-09-15 20:29:32,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:29:32,622 INFO L225 Difference]: With dead ends: 2680 [2018-09-15 20:29:32,623 INFO L226 Difference]: Without dead ends: 2280 [2018-09-15 20:29:32,627 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2018-09-15 20:29:32,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2280 states. [2018-09-15 20:29:32,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2280 to 1092. [2018-09-15 20:29:32,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1092 states. [2018-09-15 20:29:32,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1437 transitions. [2018-09-15 20:29:32,687 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1437 transitions. Word has length 140 [2018-09-15 20:29:32,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:29:32,688 INFO L480 AbstractCegarLoop]: Abstraction has 1092 states and 1437 transitions. [2018-09-15 20:29:32,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-15 20:29:32,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1437 transitions. [2018-09-15 20:29:32,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-09-15 20:29:32,693 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:29:32,693 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:29:32,694 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:29:32,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1802724966, now seen corresponding path program 1 times [2018-09-15 20:29:32,694 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:29:32,694 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-09-15 20:29:32,695 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], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [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 20:29:32,701 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:29:32,701 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:29:38,243 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 20:29:53,461 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:29:53,461 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 20:29:53,466 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:29:55,597 INFO L232 lantSequenceWeakener]: Weakened 174 states. On average, predicates are now at 78.15% of their original sizes. [2018-09-15 20:29:55,598 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:29:57,012 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:29:57,013 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:29:57,013 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-09-15 20:29:57,013 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:29:57,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-15 20:29:57,014 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-15 20:29:57,015 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2018-09-15 20:29:57,015 INFO L87 Difference]: Start difference. First operand 1092 states and 1437 transitions. Second operand 20 states. [2018-09-15 20:30:32,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:30:32,185 INFO L93 Difference]: Finished difference Result 4559 states and 6808 transitions. [2018-09-15 20:30:32,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-15 20:30:32,189 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 176 [2018-09-15 20:30:32,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:30:32,206 INFO L225 Difference]: With dead ends: 4559 [2018-09-15 20:30:32,206 INFO L226 Difference]: Without dead ends: 3811 [2018-09-15 20:30:32,210 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 192 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=349, Invalid=983, Unknown=0, NotChecked=0, Total=1332 [2018-09-15 20:30:32,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2018-09-15 20:30:32,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 1442. [2018-09-15 20:30:32,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1442 states. [2018-09-15 20:30:32,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 1802 transitions. [2018-09-15 20:30:32,293 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 1802 transitions. Word has length 176 [2018-09-15 20:30:32,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:30:32,294 INFO L480 AbstractCegarLoop]: Abstraction has 1442 states and 1802 transitions. [2018-09-15 20:30:32,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-15 20:30:32,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 1802 transitions. [2018-09-15 20:30:32,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-09-15 20:30:32,307 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:30:32,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:30:32,308 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:30:32,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1428144262, now seen corresponding path program 1 times [2018-09-15 20:30:32,309 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:30:32,309 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 289 with the following transitions: [2018-09-15 20:30:32,311 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], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [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 20:30:32,327 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:30:32,327 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:31:04,538 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:31:04,539 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 20:31:04,545 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:31:08,081 INFO L232 lantSequenceWeakener]: Weakened 286 states. On average, predicates are now at 77.81% of their original sizes. [2018-09-15 20:31:08,081 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:31:11,664 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:31:11,665 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:31:11,665 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 20:31:11,665 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:31:11,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 20:31:11,666 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 20:31:11,666 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 20:31:11,667 INFO L87 Difference]: Start difference. First operand 1442 states and 1802 transitions. Second operand 15 states. [2018-09-15 20:31:25,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 20:31:25,356 INFO L93 Difference]: Finished difference Result 2883 states and 3930 transitions. [2018-09-15 20:31:25,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-15 20:31:25,358 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 288 [2018-09-15 20:31:25,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 20:31:25,369 INFO L225 Difference]: With dead ends: 2883 [2018-09-15 20:31:25,369 INFO L226 Difference]: Without dead ends: 1785 [2018-09-15 20:31:25,372 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 301 GetRequests, 243 SyntacticMatches, 31 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2018-09-15 20:31:25,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2018-09-15 20:31:25,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1782. [2018-09-15 20:31:25,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1782 states. [2018-09-15 20:31:25,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2159 transitions. [2018-09-15 20:31:25,439 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2159 transitions. Word has length 288 [2018-09-15 20:31:25,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 20:31:25,440 INFO L480 AbstractCegarLoop]: Abstraction has 1782 states and 2159 transitions. [2018-09-15 20:31:25,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 20:31:25,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2159 transitions. [2018-09-15 20:31:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2018-09-15 20:31:25,446 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 20:31:25,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:31:25,446 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 20:31:25,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1649899786, now seen corresponding path program 1 times [2018-09-15 20:31:25,447 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 20:31:25,447 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 297 with the following transitions: [2018-09-15 20:31:25,448 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], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [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], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 20:31:25,457 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 20:31:25,458 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 20:32:15,087 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 20:32:15,087 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 20:32:15,093 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 20:32:18,178 INFO L232 lantSequenceWeakener]: Weakened 294 states. On average, predicates are now at 77.79% of their original sizes. [2018-09-15 20:32:18,178 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 20:32:23,270 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 20:32:23,271 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 20:32:23,271 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 20:32:23,271 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 20:32:23,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 20:32:23,272 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 20:32:23,272 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-15 20:32:23,273 INFO L87 Difference]: Start difference. First operand 1782 states and 2159 transitions. Second operand 15 states. Received shutdown request... [2018-09-15 20:32:27,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-15 20:32:27,316 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 20:32:27,322 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 20:32:27,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:32:27 BoogieIcfgContainer [2018-09-15 20:32:27,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 20:32:27,324 INFO L168 Benchmark]: Toolchain (without parser) took 260550.40 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -373.5 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-09-15 20:32:27,326 INFO L168 Benchmark]: CDTParser took 0.22 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 20:32:27,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1290.59 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-09-15 20:32:27,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 234.77 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 20:32:27,328 INFO L168 Benchmark]: Boogie Preprocessor took 559.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 812.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -965.2 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2018-09-15 20:32:27,329 INFO L168 Benchmark]: RCFGBuilder took 7508.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 272.2 MB). Peak memory consumption was 272.2 MB. Max. memory is 7.1 GB. [2018-09-15 20:32:27,330 INFO L168 Benchmark]: TraceAbstraction took 250947.63 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 203.2 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-15 20:32:27,335 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1290.59 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 234.77 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 559.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 812.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -965.2 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7508.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 272.2 MB). Peak memory consumption was 272.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 250947.63 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 203.2 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 130). Cancelled while BasicCegarLoop was constructing difference of abstraction (1782states) and FLOYD_HOARE automaton (currently 9 states, 15 states before enhancement), while ReachableStatesComputation was computing reachable states (264 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 250.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 105.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1642 SDtfs, 12856 SDslu, 1323 SDs, 0 SdLazy, 19587 SolverSat, 2168 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 96.1s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 996 GetRequests, 800 SyntacticMatches, 78 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 14.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1782occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 120.4s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9953642189798767 AbsIntWeakeningRatio, 0.09968186638388123 AbsIntAvgWeakeningVarsNumRemoved, 31.296924708377517 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 3562 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_20-32-27-351.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_20-32-27-351.csv Completed graceful shutdown