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/Problem02_label55_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:57:16,983 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:57:16,986 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:57:17,000 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:57:17,000 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:57:17,002 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:57:17,003 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:57:17,005 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:57:17,006 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:57:17,007 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:57:17,008 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:57:17,009 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:57:17,010 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:57:17,011 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:57:17,012 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:57:17,012 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:57:17,013 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:57:17,015 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:57:17,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:57:17,019 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:57:17,020 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:57:17,021 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:57:17,024 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 01:57:17,037 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 [2018-09-19 01:57:17,068 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:57:17,068 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:57:17,069 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:57:17,070 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:57:17,071 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:57:17,071 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:57:17,071 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:57:17,071 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:57:17,072 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:57:17,072 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:57:17,072 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:57:17,072 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:57:17,073 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:57:17,076 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:57:17,076 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:57:17,076 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:57:17,077 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:57:17,077 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:57:17,077 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:57:17,077 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:57:17,077 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:57:17,078 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:57:17,078 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:57:17,078 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:57:17,078 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:57:17,078 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:57:17,079 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:57:17,079 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:57:17,079 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:57:17,079 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:57:17,079 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:57:17,081 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:57:17,081 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:57:17,081 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:57:17,137 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:57:17,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:57:17,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:57:17,158 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:57:17,158 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:57:17,159 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55_true-unreach-call_false-termination.c [2018-09-19 01:57:17,534 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61ab29063/cfde4d731f074b87a0fc8c333749e549/FLAG659253c40 [2018-09-19 01:57:17,826 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:57:17,827 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label55_true-unreach-call_false-termination.c [2018-09-19 01:57:17,845 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61ab29063/cfde4d731f074b87a0fc8c333749e549/FLAG659253c40 [2018-09-19 01:57:17,867 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61ab29063/cfde4d731f074b87a0fc8c333749e549 [2018-09-19 01:57:17,881 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:57:17,885 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:57:17,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:57:17,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:57:17,893 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:57:17,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:57:17" (1/1) ... [2018-09-19 01:57:17,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6808862e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:17, skipping insertion in model container [2018-09-19 01:57:17,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:57:17" (1/1) ... [2018-09-19 01:57:17,912 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:57:18,493 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:57:18,516 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:57:18,625 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:57:18,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18 WrapperNode [2018-09-19 01:57:18,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:57:18,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:57:18,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:57:18,666 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:57:18,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18" (1/1) ... [2018-09-19 01:57:18,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18" (1/1) ... [2018-09-19 01:57:18,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:57:18,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:57:18,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:57:18,755 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:57:18,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18" (1/1) ... [2018-09-19 01:57:18,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18" (1/1) ... [2018-09-19 01:57:18,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18" (1/1) ... [2018-09-19 01:57:18,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18" (1/1) ... [2018-09-19 01:57:18,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18" (1/1) ... [2018-09-19 01:57:18,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18" (1/1) ... [2018-09-19 01:57:18,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18" (1/1) ... [2018-09-19 01:57:18,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:57:18,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:57:18,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:57:18,979 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:57:18,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18" (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 [2018-09-19 01:57:19,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:57:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:57:19,063 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 01:57:19,063 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 01:57:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:57:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:57:19,064 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:57:19,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:57:22,660 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:57:22,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:57:22 BoogieIcfgContainer [2018-09-19 01:57:22,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:57:22,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:57:22,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:57:22,671 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:57:22,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:57:17" (1/3) ... [2018-09-19 01:57:22,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7886cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:57:22, skipping insertion in model container [2018-09-19 01:57:22,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:57:18" (2/3) ... [2018-09-19 01:57:22,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7886cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:57:22, skipping insertion in model container [2018-09-19 01:57:22,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:57:22" (3/3) ... [2018-09-19 01:57:22,679 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label55_true-unreach-call_false-termination.c [2018-09-19 01:57:22,690 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:57:22,703 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:57:22,780 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:57:22,781 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:57:22,781 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:57:22,781 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:57:22,782 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:57:22,782 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:57:22,782 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:57:22,782 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:57:22,782 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:57:22,818 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-09-19 01:57:22,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-09-19 01:57:22,832 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:57:22,833 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:57:22,835 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:57:22,841 INFO L82 PathProgramCache]: Analyzing trace with hash -301102600, now seen corresponding path program 1 times [2018-09-19 01:57:22,843 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:57:22,844 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 113 with the following transitions: [2018-09-19 01:57:22,847 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [867], [871], [877], [881], [888], [889], [890], [892] [2018-09-19 01:57:22,929 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:57:22,929 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:57:37,801 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:57:37,803 INFO L272 AbstractInterpreter]: Visited 111 different actions 111 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-09-19 01:57:37,828 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:57:40,389 INFO L232 lantSequenceWeakener]: Weakened 110 states. On average, predicates are now at 80.98% of their original sizes. [2018-09-19 01:57:40,390 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:57:41,603 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:57:41,605 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:57:41,606 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 01:57:41,606 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:57:41,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 01:57:41,622 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 01:57:41,623 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-09-19 01:57:41,627 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 10 states. [2018-09-19 01:57:45,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:57:45,710 INFO L93 Difference]: Finished difference Result 622 states and 1061 transitions. [2018-09-19 01:57:45,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 01:57:45,712 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 112 [2018-09-19 01:57:45,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:57:45,729 INFO L225 Difference]: With dead ends: 622 [2018-09-19 01:57:45,730 INFO L226 Difference]: Without dead ends: 383 [2018-09-19 01:57:45,737 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 115 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:57:45,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-09-19 01:57:45,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2018-09-19 01:57:45,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-09-19 01:57:45,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 531 transitions. [2018-09-19 01:57:45,812 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 531 transitions. Word has length 112 [2018-09-19 01:57:45,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:57:45,816 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 531 transitions. [2018-09-19 01:57:45,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 01:57:45,816 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 531 transitions. [2018-09-19 01:57:45,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-09-19 01:57:45,831 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:57:45,831 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:57:45,832 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:57:45,832 INFO L82 PathProgramCache]: Analyzing trace with hash -322233895, now seen corresponding path program 1 times [2018-09-19 01:57:45,832 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:57:45,834 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 123 with the following transitions: [2018-09-19 01:57:45,835 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:57:45,847 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:57:45,847 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:58:11,773 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:58:11,773 INFO L272 AbstractInterpreter]: Visited 115 different actions 224 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 01:58:11,809 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:58:13,920 INFO L232 lantSequenceWeakener]: Weakened 120 states. On average, predicates are now at 81% of their original sizes. [2018-09-19 01:58:13,921 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:58:15,020 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:58:15,021 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:58:15,021 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:58:15,021 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:58:15,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:58:15,023 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:58:15,023 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:58:15,023 INFO L87 Difference]: Start difference. First operand 380 states and 531 transitions. Second operand 14 states. [2018-09-19 01:58:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:58:24,599 INFO L93 Difference]: Finished difference Result 910 states and 1354 transitions. [2018-09-19 01:58:24,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 01:58:24,602 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 122 [2018-09-19 01:58:24,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:58:24,607 INFO L225 Difference]: With dead ends: 910 [2018-09-19 01:58:24,607 INFO L226 Difference]: Without dead ends: 536 [2018-09-19 01:58:24,612 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 136 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2018-09-19 01:58:24,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2018-09-19 01:58:24,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 528. [2018-09-19 01:58:24,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-09-19 01:58:24,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 701 transitions. [2018-09-19 01:58:24,654 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 701 transitions. Word has length 122 [2018-09-19 01:58:24,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:58:24,655 INFO L480 AbstractCegarLoop]: Abstraction has 528 states and 701 transitions. [2018-09-19 01:58:24,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:58:24,656 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 701 transitions. [2018-09-19 01:58:24,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-09-19 01:58:24,659 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:58:24,660 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-19 01:58:24,660 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:58:24,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1586168017, now seen corresponding path program 1 times [2018-09-19 01:58:24,660 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:58:24,661 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2018-09-19 01:58:24,661 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:58:24,665 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:58:24,666 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:58:51,123 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:58:51,124 INFO L272 AbstractInterpreter]: Visited 115 different actions 224 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-09-19 01:58:51,131 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:58:53,250 INFO L232 lantSequenceWeakener]: Weakened 124 states. On average, predicates are now at 80.98% of their original sizes. [2018-09-19 01:58:53,251 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:58:53,953 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:58:53,954 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:58:53,954 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:58:53,955 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:58:53,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:58:53,955 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:58:53,956 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:58:53,956 INFO L87 Difference]: Start difference. First operand 528 states and 701 transitions. Second operand 14 states. [2018-09-19 01:59:00,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:59:00,683 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2018-09-19 01:59:00,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 01:59:00,684 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 126 [2018-09-19 01:59:00,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:59:00,689 INFO L225 Difference]: With dead ends: 1208 [2018-09-19 01:59:00,689 INFO L226 Difference]: Without dead ends: 686 [2018-09-19 01:59:00,692 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 139 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=171, Invalid=585, Unknown=0, NotChecked=0, Total=756 [2018-09-19 01:59:00,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-09-19 01:59:00,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 676. [2018-09-19 01:59:00,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-09-19 01:59:00,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 881 transitions. [2018-09-19 01:59:00,732 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 881 transitions. Word has length 126 [2018-09-19 01:59:00,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:59:00,732 INFO L480 AbstractCegarLoop]: Abstraction has 676 states and 881 transitions. [2018-09-19 01:59:00,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:59:00,733 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 881 transitions. [2018-09-19 01:59:00,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-19 01:59:00,737 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:59:00,737 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2018-09-19 01:59:00,738 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:59:00,738 INFO L82 PathProgramCache]: Analyzing trace with hash 188796996, now seen corresponding path program 1 times [2018-09-19 01:59:00,738 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:59:00,738 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 132 with the following transitions: [2018-09-19 01:59:00,739 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:59:00,743 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:59:00,743 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:59:39,727 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:59:39,728 INFO L272 AbstractInterpreter]: Visited 116 different actions 340 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 01:59:39,735 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:59:41,577 INFO L232 lantSequenceWeakener]: Weakened 129 states. On average, predicates are now at 81.01% of their original sizes. [2018-09-19 01:59:41,578 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:59:42,241 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:59:42,242 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:59:42,242 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 01:59:42,242 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:59:42,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 01:59:42,243 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 01:59:42,243 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 01:59:42,243 INFO L87 Difference]: Start difference. First operand 676 states and 881 transitions. Second operand 14 states. [2018-09-19 01:59:51,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:59:51,167 INFO L93 Difference]: Finished difference Result 1577 states and 2188 transitions. [2018-09-19 01:59:51,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 01:59:51,168 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 131 [2018-09-19 01:59:51,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:59:51,175 INFO L225 Difference]: With dead ends: 1577 [2018-09-19 01:59:51,175 INFO L226 Difference]: Without dead ends: 907 [2018-09-19 01:59:51,178 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2018-09-19 01:59:51,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2018-09-19 01:59:51,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 886. [2018-09-19 01:59:51,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2018-09-19 01:59:51,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1117 transitions. [2018-09-19 01:59:51,219 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1117 transitions. Word has length 131 [2018-09-19 01:59:51,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:59:51,219 INFO L480 AbstractCegarLoop]: Abstraction has 886 states and 1117 transitions. [2018-09-19 01:59:51,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 01:59:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1117 transitions. [2018-09-19 01:59:51,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-19 01:59:51,223 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:59:51,223 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-09-19 01:59:51,223 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:59:51,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1834003939, now seen corresponding path program 1 times [2018-09-19 01:59:51,224 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:59:51,224 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-09-19 01:59:51,225 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [9], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 01:59:51,229 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:59:51,229 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 02:00:43,870 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 02:00:43,870 INFO L272 AbstractInterpreter]: Visited 117 different actions 468 times. Merged at 8 different actions 33 times. Never widened. Found 8 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 02:00:43,875 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 02:00:45,748 INFO L232 lantSequenceWeakener]: Weakened 143 states. On average, predicates are now at 81% of their original sizes. [2018-09-19 02:00:45,749 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 02:00:46,526 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 02:00:46,526 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 02:00:46,527 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 02:00:46,527 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 02:00:46,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 02:00:46,528 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 02:00:46,528 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 02:00:46,528 INFO L87 Difference]: Start difference. First operand 886 states and 1117 transitions. Second operand 14 states. [2018-09-19 02:00:56,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 02:00:56,093 INFO L93 Difference]: Finished difference Result 2074 states and 2748 transitions. [2018-09-19 02:00:56,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-19 02:00:56,094 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 145 [2018-09-19 02:00:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 02:00:56,100 INFO L225 Difference]: With dead ends: 2074 [2018-09-19 02:00:56,100 INFO L226 Difference]: Without dead ends: 1194 [2018-09-19 02:00:56,103 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 160 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2018-09-19 02:00:56,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2018-09-19 02:00:56,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1159. [2018-09-19 02:00:56,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1159 states. [2018-09-19 02:00:56,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1430 transitions. [2018-09-19 02:00:56,146 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1430 transitions. Word has length 145 [2018-09-19 02:00:56,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 02:00:56,147 INFO L480 AbstractCegarLoop]: Abstraction has 1159 states and 1430 transitions. [2018-09-19 02:00:56,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 02:00:56,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1430 transitions. [2018-09-19 02:00:56,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-09-19 02:00:56,151 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 02:00:56,151 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-19 02:00:56,151 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 02:00:56,151 INFO L82 PathProgramCache]: Analyzing trace with hash -451396023, now seen corresponding path program 1 times [2018-09-19 02:00:56,152 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 02:00:56,152 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-09-19 02:00:56,152 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [25], [26], [30], [34], [38], [42], [53], [64], [68], [72], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [152], [156], [160], [171], [175], [179], [183], [187], [191], [195], [199], [210], [214], [218], [222], [233], [237], [241], [245], [249], [253], [257], [268], [272], [283], [287], [298], [309], [313], [317], [321], [325], [329], [333], [344], [348], [352], [356], [360], [364], [368], [372], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [567], [569], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-09-19 02:00:56,156 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 02:00:56,156 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 02:01:36,077 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 02:01:36,078 INFO L272 AbstractInterpreter]: Visited 116 different actions 340 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 38 variables. [2018-09-19 02:01:36,087 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 02:01:38,031 INFO L232 lantSequenceWeakener]: Weakened 147 states. On average, predicates are now at 80.95% of their original sizes. [2018-09-19 02:01:38,032 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 02:01:38,768 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 02:01:38,768 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 02:01:38,769 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 02:01:38,769 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 02:01:38,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 02:01:38,769 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 02:01:38,770 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 02:01:38,770 INFO L87 Difference]: Start difference. First operand 1159 states and 1430 transitions. Second operand 14 states. Received shutdown request... [2018-09-19 02:01:43,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-19 02:01:43,250 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 02:01:43,255 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 02:01:43,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 02:01:43 BoogieIcfgContainer [2018-09-19 02:01:43,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 02:01:43,256 INFO L168 Benchmark]: Toolchain (without parser) took 265375.19 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 278.0 MB. Max. memory is 7.1 GB. [2018-09-19 02:01:43,258 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. [2018-09-19 02:01:43,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 02:01:43,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 02:01:43,262 INFO L168 Benchmark]: Boogie Preprocessor took 223.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -839.0 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2018-09-19 02:01:43,263 INFO L168 Benchmark]: RCFGBuilder took 3682.33 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. [2018-09-19 02:01:43,264 INFO L168 Benchmark]: TraceAbstraction took 260591.61 ms. Allocated memory was 2.3 GB in the beginning and 3.1 GB in the end (delta: 846.7 MB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -619.6 MB). Peak memory consumption was 227.1 MB. Max. memory is 7.1 GB. [2018-09-19 02:01:43,269 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 779.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 88.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 223.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -839.0 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3682.33 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 105.3 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260591.61 ms. Allocated memory was 2.3 GB in the beginning and 3.1 GB in the end (delta: 846.7 MB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -619.6 MB). Peak memory consumption was 227.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 487]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 487). Cancelled while BasicCegarLoop was constructing difference of abstraction (1159states) and FLOYD_HOARE automaton (currently 23 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (443 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 237 locations, 1 error locations. TIMEOUT Result, 260.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 43.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1160 SDtfs, 5812 SDslu, 2123 SDs, 0 SdLazy, 10402 SolverSat, 1194 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 36.0s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 859 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1159occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 199.0s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9934801195357935 AbsIntWeakeningRatio, 0.23106546854942234 AbsIntAvgWeakeningVarsNumRemoved, 2437.9293966623877 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 77 StatesRemovedByMinimization, 5 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/Problem02_label55_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_02-01-43-284.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem02_label55_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_02-01-43-284.csv Completed graceful shutdown