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/Problem14_label09_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:05:49,877 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:05:49,879 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:05:49,890 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:05:49,891 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:05:49,892 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:05:49,893 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:05:49,895 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:05:49,896 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:05:49,897 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:05:49,898 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:05:49,898 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:05:49,899 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:05:49,900 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:05:49,901 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:05:49,902 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:05:49,903 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:05:49,905 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:05:49,907 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:05:49,908 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:05:49,909 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:05:49,911 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:05:49,913 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 04:05:49,922 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 04:05:49,947 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:05:49,947 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:05:49,949 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:05:49,949 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:05:49,949 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:05:49,950 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:05:49,950 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:05:49,950 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:05:49,950 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:05:49,953 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:05:49,954 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:05:49,954 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:05:49,955 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:05:49,955 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:05:49,955 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:05:49,955 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:05:49,956 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:05:49,957 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:05:49,957 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:05:49,957 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:05:49,957 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:05:49,957 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:05:49,958 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:05:49,958 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:05:49,958 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:05:49,958 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:05:49,959 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:05:49,959 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:05:49,959 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:05:49,959 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:05:49,960 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:05:49,960 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:05:49,960 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:05:49,960 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:05:50,029 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:05:50,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:05:50,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:05:50,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:05:50,056 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:05:50,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label09_true-unreach-call_false-termination.c [2018-09-19 04:05:50,426 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53bd394f8/37eca7edd6244a1383bfd64167082a70/FLAG500944a2f [2018-09-19 04:05:50,730 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:05:50,731 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label09_true-unreach-call_false-termination.c [2018-09-19 04:05:50,745 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53bd394f8/37eca7edd6244a1383bfd64167082a70/FLAG500944a2f [2018-09-19 04:05:50,768 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53bd394f8/37eca7edd6244a1383bfd64167082a70 [2018-09-19 04:05:50,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:05:50,785 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:05:50,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:05:50,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:05:50,793 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:05:50,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:05:50" (1/1) ... [2018-09-19 04:05:50,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d01395f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:50, skipping insertion in model container [2018-09-19 04:05:50,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:05:50" (1/1) ... [2018-09-19 04:05:50,810 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:05:51,455 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:05:51,475 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:05:51,624 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:05:51,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51 WrapperNode [2018-09-19 04:05:51,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:05:51,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:05:51,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:05:51,676 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:05:51,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51" (1/1) ... [2018-09-19 04:05:51,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51" (1/1) ... [2018-09-19 04:05:51,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:05:51,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:05:51,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:05:51,801 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:05:51,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51" (1/1) ... [2018-09-19 04:05:51,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51" (1/1) ... [2018-09-19 04:05:51,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51" (1/1) ... [2018-09-19 04:05:51,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51" (1/1) ... [2018-09-19 04:05:51,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51" (1/1) ... [2018-09-19 04:05:52,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51" (1/1) ... [2018-09-19 04:05:52,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51" (1/1) ... [2018-09-19 04:05:52,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:05:52,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:05:52,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:05:52,033 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:05:52,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51" (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 04:05:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:05:52,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:05:52,108 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:05:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:05:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:05:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:05:52,109 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:05:52,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:05:55,561 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:05:55,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:05:55 BoogieIcfgContainer [2018-09-19 04:05:55,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:05:55,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:05:55,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:05:55,567 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:05:55,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:05:50" (1/3) ... [2018-09-19 04:05:55,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104941c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:05:55, skipping insertion in model container [2018-09-19 04:05:55,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:05:51" (2/3) ... [2018-09-19 04:05:55,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104941c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:05:55, skipping insertion in model container [2018-09-19 04:05:55,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:05:55" (3/3) ... [2018-09-19 04:05:55,571 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label09_true-unreach-call_false-termination.c [2018-09-19 04:05:55,581 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:05:55,589 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:05:55,643 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:05:55,643 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:05:55,644 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:05:55,644 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:05:55,644 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:05:55,644 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:05:55,646 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:05:55,646 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:05:55,646 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:05:55,675 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-19 04:05:55,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-19 04:05:55,684 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:05:55,686 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] [2018-09-19 04:05:55,687 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:05:55,693 INFO L82 PathProgramCache]: Analyzing trace with hash 968801788, now seen corresponding path program 1 times [2018-09-19 04:05:55,696 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:05:55,697 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-09-19 04:05:55,699 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [952], [956], [962], [966], [973], [974], [975], [977] [2018-09-19 04:05:55,773 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:05:55,774 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:05:57,146 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:05:57,147 INFO L272 AbstractInterpreter]: Visited 51 different actions 51 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:05:57,161 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:05:57,804 INFO L232 lantSequenceWeakener]: Weakened 50 states. On average, predicates are now at 80.51% of their original sizes. [2018-09-19 04:05:57,804 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:05:58,084 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:05:58,086 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:05:58,086 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:05:58,086 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:05:58,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:05:58,099 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:05:58,100 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:05:58,103 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-09-19 04:06:02,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:06:02,752 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-09-19 04:06:02,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:06:02,754 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2018-09-19 04:06:02,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:06:02,773 INFO L225 Difference]: With dead ends: 693 [2018-09-19 04:06:02,773 INFO L226 Difference]: Without dead ends: 436 [2018-09-19 04:06:02,781 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:06:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-09-19 04:06:02,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-09-19 04:06:02,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-19 04:06:02,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-09-19 04:06:02,865 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 52 [2018-09-19 04:06:02,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:06:02,866 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-09-19 04:06:02,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:06:02,866 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-09-19 04:06:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-09-19 04:06:02,873 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:06:02,874 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:02,874 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:06:02,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1011830123, now seen corresponding path program 1 times [2018-09-19 04:06:02,874 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:06:02,875 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2018-09-19 04:06:02,875 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:06:02,883 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:06:02,885 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:06:07,022 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:06:07,022 INFO L272 AbstractInterpreter]: Visited 92 different actions 177 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:06:07,058 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:06:08,109 INFO L232 lantSequenceWeakener]: Weakened 135 states. On average, predicates are now at 78.54% of their original sizes. [2018-09-19 04:06:08,109 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:06:08,819 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:06:08,820 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:06:08,820 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:06:08,820 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:06:08,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:06:08,822 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:06:08,823 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:06:08,823 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 14 states. [2018-09-19 04:06:20,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:06:20,353 INFO L93 Difference]: Finished difference Result 1340 states and 2335 transitions. [2018-09-19 04:06:20,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:06:20,353 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 137 [2018-09-19 04:06:20,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:06:20,363 INFO L225 Difference]: With dead ends: 1340 [2018-09-19 04:06:20,363 INFO L226 Difference]: Without dead ends: 1095 [2018-09-19 04:06:20,367 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:06:20,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2018-09-19 04:06:20,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 850. [2018-09-19 04:06:20,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2018-09-19 04:06:20,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1058 transitions. [2018-09-19 04:06:20,428 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1058 transitions. Word has length 137 [2018-09-19 04:06:20,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:06:20,429 INFO L480 AbstractCegarLoop]: Abstraction has 850 states and 1058 transitions. [2018-09-19 04:06:20,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:06:20,429 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1058 transitions. [2018-09-19 04:06:20,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-09-19 04:06:20,434 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:06:20,435 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:20,435 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:06:20,435 INFO L82 PathProgramCache]: Analyzing trace with hash -2110857769, now seen corresponding path program 1 times [2018-09-19 04:06:20,436 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:06:20,436 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 164 with the following transitions: [2018-09-19 04:06:20,436 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:06:20,442 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:06:20,442 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:06:26,284 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:06:26,284 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:06:26,325 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:06:27,540 INFO L232 lantSequenceWeakener]: Weakened 161 states. On average, predicates are now at 78.33% of their original sizes. [2018-09-19 04:06:27,541 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:06:28,194 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:06:28,195 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:06:28,195 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:06:28,195 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:06:28,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:06:28,196 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:06:28,196 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:06:28,197 INFO L87 Difference]: Start difference. First operand 850 states and 1058 transitions. Second operand 11 states. [2018-09-19 04:06:36,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:06:36,392 INFO L93 Difference]: Finished difference Result 1283 states and 1842 transitions. [2018-09-19 04:06:36,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 04:06:36,401 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 163 [2018-09-19 04:06:36,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:06:36,411 INFO L225 Difference]: With dead ends: 1283 [2018-09-19 04:06:36,412 INFO L226 Difference]: Without dead ends: 1038 [2018-09-19 04:06:36,416 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 170 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-19 04:06:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2018-09-19 04:06:36,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1035. [2018-09-19 04:06:36,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2018-09-19 04:06:36,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1256 transitions. [2018-09-19 04:06:36,476 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1256 transitions. Word has length 163 [2018-09-19 04:06:36,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:06:36,477 INFO L480 AbstractCegarLoop]: Abstraction has 1035 states and 1256 transitions. [2018-09-19 04:06:36,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:06:36,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1256 transitions. [2018-09-19 04:06:36,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-09-19 04:06:36,494 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:06:36,495 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 04:06:36,496 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:06:36,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1337420152, now seen corresponding path program 1 times [2018-09-19 04:06:36,496 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:06:36,497 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 249 with the following transitions: [2018-09-19 04:06:36,497 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:06:36,502 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:06:36,502 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:06:44,398 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:06:44,399 INFO L272 AbstractInterpreter]: Visited 119 different actions 352 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:06:44,440 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:06:46,622 INFO L232 lantSequenceWeakener]: Weakened 246 states. On average, predicates are now at 78.01% of their original sizes. [2018-09-19 04:06:46,623 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:06:47,319 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:06:47,319 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:06:47,319 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-19 04:06:47,320 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:06:47,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-19 04:06:47,321 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-19 04:06:47,321 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-09-19 04:06:47,321 INFO L87 Difference]: Start difference. First operand 1035 states and 1256 transitions. Second operand 15 states. [2018-09-19 04:06:59,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:06:59,766 INFO L93 Difference]: Finished difference Result 2597 states and 3738 transitions. [2018-09-19 04:06:59,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 04:06:59,768 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 248 [2018-09-19 04:06:59,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:06:59,781 INFO L225 Difference]: With dead ends: 2597 [2018-09-19 04:06:59,781 INFO L226 Difference]: Without dead ends: 1936 [2018-09-19 04:06:59,786 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 263 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=208, Invalid=722, Unknown=0, NotChecked=0, Total=930 [2018-09-19 04:06:59,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2018-09-19 04:06:59,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1469. [2018-09-19 04:06:59,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1469 states. [2018-09-19 04:06:59,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1742 transitions. [2018-09-19 04:06:59,841 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1742 transitions. Word has length 248 [2018-09-19 04:06:59,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:06:59,842 INFO L480 AbstractCegarLoop]: Abstraction has 1469 states and 1742 transitions. [2018-09-19 04:06:59,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-19 04:06:59,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1742 transitions. [2018-09-19 04:06:59,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-09-19 04:06:59,849 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:06:59,849 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 04:06:59,849 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:06:59,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1941603221, now seen corresponding path program 1 times [2018-09-19 04:06:59,850 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:06:59,850 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 274 with the following transitions: [2018-09-19 04:06:59,851 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:06:59,865 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:06:59,865 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:07:05,106 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:07:15,858 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:07:15,859 INFO L272 AbstractInterpreter]: Visited 119 different actions 465 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:07:15,878 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:07:17,683 INFO L232 lantSequenceWeakener]: Weakened 271 states. On average, predicates are now at 77.94% of their original sizes. [2018-09-19 04:07:17,683 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:07:17,998 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:07:17,998 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:07:17,999 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 04:07:17,999 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:07:17,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 04:07:18,000 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 04:07:18,000 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 04:07:18,000 INFO L87 Difference]: Start difference. First operand 1469 states and 1742 transitions. Second operand 10 states. [2018-09-19 04:07:22,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:07:22,670 INFO L93 Difference]: Finished difference Result 1908 states and 2532 transitions. [2018-09-19 04:07:22,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 04:07:22,677 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 273 [2018-09-19 04:07:22,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:07:22,686 INFO L225 Difference]: With dead ends: 1908 [2018-09-19 04:07:22,686 INFO L226 Difference]: Without dead ends: 1663 [2018-09-19 04:07:22,689 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 280 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 04:07:22,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2018-09-19 04:07:22,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1656. [2018-09-19 04:07:22,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1656 states. [2018-09-19 04:07:22,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 1960 transitions. [2018-09-19 04:07:22,742 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 1960 transitions. Word has length 273 [2018-09-19 04:07:22,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:07:22,743 INFO L480 AbstractCegarLoop]: Abstraction has 1656 states and 1960 transitions. [2018-09-19 04:07:22,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 04:07:22,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 1960 transitions. [2018-09-19 04:07:22,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2018-09-19 04:07:22,751 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:07:22,751 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:07:22,751 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:07:22,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1852554815, now seen corresponding path program 1 times [2018-09-19 04:07:22,752 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:07:22,752 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 352 with the following transitions: [2018-09-19 04:07:22,752 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:07:22,757 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:07:22,757 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:07:27,853 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:07:44,011 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:07:44,011 INFO L272 AbstractInterpreter]: Visited 120 different actions 709 times. Merged at 8 different actions 44 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:07:44,022 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:07:46,222 INFO L232 lantSequenceWeakener]: Weakened 349 states. On average, predicates are now at 77.82% of their original sizes. [2018-09-19 04:07:46,223 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:07:46,607 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:07:46,608 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:07:46,608 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:07:46,608 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:07:46,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:07:46,609 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:07:46,609 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:07:46,610 INFO L87 Difference]: Start difference. First operand 1656 states and 1960 transitions. Second operand 13 states. [2018-09-19 04:07:57,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:07:57,740 INFO L93 Difference]: Finished difference Result 2810 states and 3870 transitions. [2018-09-19 04:07:57,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-19 04:07:57,741 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 351 [2018-09-19 04:07:57,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:07:57,752 INFO L225 Difference]: With dead ends: 2810 [2018-09-19 04:07:57,752 INFO L226 Difference]: Without dead ends: 2378 [2018-09-19 04:07:57,755 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 367 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=180, Invalid=690, Unknown=0, NotChecked=0, Total=870 [2018-09-19 04:07:57,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2018-09-19 04:07:57,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 1863. [2018-09-19 04:07:57,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1863 states. [2018-09-19 04:07:57,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1863 states to 1863 states and 2217 transitions. [2018-09-19 04:07:57,810 INFO L78 Accepts]: Start accepts. Automaton has 1863 states and 2217 transitions. Word has length 351 [2018-09-19 04:07:57,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:07:57,811 INFO L480 AbstractCegarLoop]: Abstraction has 1863 states and 2217 transitions. [2018-09-19 04:07:57,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:07:57,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1863 states and 2217 transitions. [2018-09-19 04:07:57,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2018-09-19 04:07:57,820 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:07:57,821 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:07:57,821 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:07:57,821 INFO L82 PathProgramCache]: Analyzing trace with hash -872810121, now seen corresponding path program 1 times [2018-09-19 04:07:57,821 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:07:57,822 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 356 with the following transitions: [2018-09-19 04:07:57,822 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:07:57,825 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:07:57,825 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:08:02,825 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:08:26,395 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:08:26,395 INFO L272 AbstractInterpreter]: Visited 120 different actions 945 times. Merged at 8 different actions 62 times. Widened at 1 different actions 3 times. Found 14 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:08:26,402 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:08:28,334 INFO L232 lantSequenceWeakener]: Weakened 353 states. On average, predicates are now at 77.81% of their original sizes. [2018-09-19 04:08:28,335 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:08:28,573 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:08:28,574 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:08:28,574 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 04:08:28,574 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:08:28,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 04:08:28,575 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 04:08:28,575 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 04:08:28,575 INFO L87 Difference]: Start difference. First operand 1863 states and 2217 transitions. Second operand 10 states. [2018-09-19 04:08:35,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:08:35,223 INFO L93 Difference]: Finished difference Result 2697 states and 3488 transitions. [2018-09-19 04:08:35,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 04:08:35,224 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 355 [2018-09-19 04:08:35,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:08:35,234 INFO L225 Difference]: With dead ends: 2697 [2018-09-19 04:08:35,234 INFO L226 Difference]: Without dead ends: 2058 [2018-09-19 04:08:35,237 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 362 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 04:08:35,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2018-09-19 04:08:35,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2048. [2018-09-19 04:08:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2048 states. [2018-09-19 04:08:35,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 2435 transitions. [2018-09-19 04:08:35,300 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 2435 transitions. Word has length 355 [2018-09-19 04:08:35,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:08:35,301 INFO L480 AbstractCegarLoop]: Abstraction has 2048 states and 2435 transitions. [2018-09-19 04:08:35,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 04:08:35,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 2435 transitions. [2018-09-19 04:08:35,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2018-09-19 04:08:35,307 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:08:35,308 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:08:35,308 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:08:35,308 INFO L82 PathProgramCache]: Analyzing trace with hash 996117528, now seen corresponding path program 1 times [2018-09-19 04:08:35,308 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:08:35,309 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 377 with the following transitions: [2018-09-19 04:08:35,309 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [626], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:08:35,312 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:08:35,312 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:08:40,712 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:08:57,265 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:08:57,265 INFO L272 AbstractInterpreter]: Visited 120 different actions 709 times. Merged at 8 different actions 44 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:08:57,273 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:08:59,407 INFO L232 lantSequenceWeakener]: Weakened 374 states. On average, predicates are now at 77.78% of their original sizes. [2018-09-19 04:08:59,408 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:08:59,822 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:08:59,822 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:08:59,823 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:08:59,823 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:08:59,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:08:59,824 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:08:59,824 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:08:59,824 INFO L87 Difference]: Start difference. First operand 2048 states and 2435 transitions. Second operand 13 states. [2018-09-19 04:09:12,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:09:12,569 INFO L93 Difference]: Finished difference Result 3776 states and 5056 transitions. [2018-09-19 04:09:12,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-19 04:09:12,570 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 376 [2018-09-19 04:09:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:09:12,583 INFO L225 Difference]: With dead ends: 3776 [2018-09-19 04:09:12,583 INFO L226 Difference]: Without dead ends: 2952 [2018-09-19 04:09:12,587 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 392 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=180, Invalid=690, Unknown=0, NotChecked=0, Total=870 [2018-09-19 04:09:12,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2018-09-19 04:09:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2259. [2018-09-19 04:09:12,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2259 states. [2018-09-19 04:09:12,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 2698 transitions. [2018-09-19 04:09:12,657 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 2698 transitions. Word has length 376 [2018-09-19 04:09:12,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:09:12,658 INFO L480 AbstractCegarLoop]: Abstraction has 2259 states and 2698 transitions. [2018-09-19 04:09:12,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:09:12,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 2698 transitions. [2018-09-19 04:09:12,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2018-09-19 04:09:12,665 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:09:12,666 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:09:12,666 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:09:12,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1518711221, now seen corresponding path program 1 times [2018-09-19 04:09:12,666 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:09:12,667 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 434 with the following transitions: [2018-09-19 04:09:12,667 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-19 04:09:12,670 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:09:12,670 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:09:17,774 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:09:49,108 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:09:49,108 INFO L272 AbstractInterpreter]: Visited 121 different actions 1206 times. Merged at 9 different actions 95 times. Widened at 1 different actions 5 times. Found 26 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:09:49,119 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:09:51,489 INFO L232 lantSequenceWeakener]: Weakened 431 states. On average, predicates are now at 77.73% of their original sizes. [2018-09-19 04:09:51,489 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:09:51,875 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:09:51,875 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:09:51,875 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:09:51,875 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:09:51,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:09:51,876 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:09:51,876 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:09:51,877 INFO L87 Difference]: Start difference. First operand 2259 states and 2698 transitions. Second operand 13 states. Received shutdown request... [2018-09-19 04:10:02,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-19 04:10:02,990 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:10:02,997 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:10:02,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:10:02 BoogieIcfgContainer [2018-09-19 04:10:02,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:10:02,999 INFO L168 Benchmark]: Toolchain (without parser) took 252216.90 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 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-19 04:10:03,001 INFO L168 Benchmark]: CDTParser took 0.19 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 04:10:03,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 889.32 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 04:10:03,002 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.13 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 04:10:03,003 INFO L168 Benchmark]: Boogie Preprocessor took 232.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 754.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -850.3 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-09-19 04:10:03,004 INFO L168 Benchmark]: RCFGBuilder took 3530.02 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: 122.5 MB). Peak memory consumption was 122.5 MB. Max. memory is 7.1 GB. [2018-09-19 04:10:03,005 INFO L168 Benchmark]: TraceAbstraction took 247434.36 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -715.7 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-19 04:10:03,009 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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. * CACSL2BoogieTranslator took 889.32 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 124.13 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 232.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 754.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -850.3 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3530.02 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: 122.5 MB). Peak memory consumption was 122.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 247434.36 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -715.7 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 139). Cancelled while BasicCegarLoop was constructing difference of abstraction (2259states) and FLOYD_HOARE automaton (currently 27 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (3637 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 247.3s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 83.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2036 SDtfs, 14640 SDslu, 3619 SDs, 0 SdLazy, 24482 SolverSat, 4470 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 72.0s Time, PredicateUnifierStatistics: 18 DeclaredPredicates, 2483 GetRequests, 2292 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1025 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2259occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 143.7s AbstIntTime, 9 AbstIntIterations, 9 AbstIntStrong, 0.9954279208555764 AbsIntWeakeningRatio, 0.1008827238335435 AbsIntAvgWeakeningVarsNumRemoved, 920.5233291298865 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 1942 StatesRemovedByMinimization, 8 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/Problem14_label09_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-10-03-023.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label09_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-10-03-023.csv Completed graceful shutdown