java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label42_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 11:02:38,869 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 11:02:38,873 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 11:02:38,891 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 11:02:38,891 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 11:02:38,892 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 11:02:38,894 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 11:02:38,896 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 11:02:38,898 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 11:02:38,900 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 11:02:38,902 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 11:02:38,903 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 11:02:38,905 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 11:02:38,907 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 11:02:38,908 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 11:02:38,915 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 11:02:38,916 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 11:02:38,920 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 11:02:38,923 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 11:02:38,925 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 11:02:38,926 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 11:02:38,931 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 11:02:38,933 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 11:02:38,945 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 11:02:38,960 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 11:02:38,960 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 11:02:38,961 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 11:02:38,961 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 11:02:38,962 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 11:02:38,962 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 11:02:38,962 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 11:02:38,962 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 11:02:38,962 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 11:02:38,962 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 11:02:38,963 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 11:02:38,963 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 11:02:38,963 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 11:02:38,964 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 11:02:38,964 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 11:02:38,964 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 11:02:38,964 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 11:02:38,964 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 11:02:38,965 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 11:02:38,965 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 11:02:38,965 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 11:02:38,965 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 11:02:38,965 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 11:02:38,966 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 11:02:38,966 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 11:02:38,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 11:02:38,966 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 11:02:38,966 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 11:02:38,967 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 11:02:38,967 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 11:02:38,967 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 11:02:38,967 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 11:02:38,967 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 11:02:38,967 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 11:02:38,968 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 11:02:39,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 11:02:39,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 11:02:39,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 11:02:39,034 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 11:02:39,035 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 11:02:39,036 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label42_true-unreach-call.c [2018-09-19 11:02:39,432 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8805d6d/69372be8d57f424dba2895ba8b4f6a91/FLAGe8bc68b2b [2018-09-19 11:02:39,761 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 11:02:39,762 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label42_true-unreach-call.c [2018-09-19 11:02:39,789 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8805d6d/69372be8d57f424dba2895ba8b4f6a91/FLAGe8bc68b2b [2018-09-19 11:02:39,811 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8805d6d/69372be8d57f424dba2895ba8b4f6a91 [2018-09-19 11:02:39,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 11:02:39,830 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 11:02:39,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 11:02:39,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 11:02:39,841 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 11:02:39,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:02:39" (1/1) ... [2018-09-19 11:02:39,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4c6457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:39, skipping insertion in model container [2018-09-19 11:02:39,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 11:02:39" (1/1) ... [2018-09-19 11:02:39,858 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 11:02:40,574 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:02:40,594 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 11:02:40,828 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 11:02:40,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40 WrapperNode [2018-09-19 11:02:40,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 11:02:40,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 11:02:40,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 11:02:40,938 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 11:02:40,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40" (1/1) ... [2018-09-19 11:02:40,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40" (1/1) ... [2018-09-19 11:02:41,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 11:02:41,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 11:02:41,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 11:02:41,171 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 11:02:41,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40" (1/1) ... [2018-09-19 11:02:41,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40" (1/1) ... [2018-09-19 11:02:41,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40" (1/1) ... [2018-09-19 11:02:41,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40" (1/1) ... [2018-09-19 11:02:41,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40" (1/1) ... [2018-09-19 11:02:41,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40" (1/1) ... [2018-09-19 11:02:41,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40" (1/1) ... [2018-09-19 11:02:41,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 11:02:41,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 11:02:41,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 11:02:41,656 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 11:02:41,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40" (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 11:02:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 11:02:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 11:02:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 11:02:41,727 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 11:02:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 11:02:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 11:02:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 11:02:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 11:02:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 11:02:41,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 11:02:47,712 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 11:02:47,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:02:47 BoogieIcfgContainer [2018-09-19 11:02:47,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 11:02:47,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 11:02:47,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 11:02:47,718 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 11:02:47,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 11:02:39" (1/3) ... [2018-09-19 11:02:47,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54716c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:02:47, skipping insertion in model container [2018-09-19 11:02:47,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 11:02:40" (2/3) ... [2018-09-19 11:02:47,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54716c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 11:02:47, skipping insertion in model container [2018-09-19 11:02:47,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 11:02:47" (3/3) ... [2018-09-19 11:02:47,722 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label42_true-unreach-call.c [2018-09-19 11:02:47,734 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 11:02:47,743 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 11:02:47,803 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 11:02:47,804 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 11:02:47,804 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 11:02:47,804 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 11:02:47,804 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 11:02:47,804 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 11:02:47,805 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 11:02:47,805 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 11:02:47,805 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 11:02:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 11:02:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-09-19 11:02:47,848 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:02:47,849 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] [2018-09-19 11:02:47,850 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:02:47,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1180093893, now seen corresponding path program 1 times [2018-09-19 11:02:47,859 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:02:47,860 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2018-09-19 11:02:47,864 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-19 11:02:47,942 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:02:47,943 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:02:49,377 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:02:49,379 INFO L272 AbstractInterpreter]: Visited 68 different actions 68 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 11:02:49,408 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:02:50,155 INFO L232 lantSequenceWeakener]: Weakened 67 states. On average, predicates are now at 80.84% of their original sizes. [2018-09-19 11:02:50,156 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:02:50,439 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:02:50,440 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:02:50,441 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 11:02:50,441 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:02:50,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 11:02:50,455 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 11:02:50,456 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 11:02:50,458 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 11:03:01,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:03:01,145 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 11:03:01,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 11:03:01,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2018-09-19 11:03:01,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:03:01,168 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 11:03:01,169 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 11:03:01,177 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 68 GetRequests, 64 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 11:03:01,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 11:03:01,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 11:03:01,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 11:03:01,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 11:03:01,299 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 69 [2018-09-19 11:03:01,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:03:01,300 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 11:03:01,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 11:03:01,300 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 11:03:01,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-09-19 11:03:01,315 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:03:01,315 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:01,316 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:03:01,316 INFO L82 PathProgramCache]: Analyzing trace with hash 774399864, now seen corresponding path program 1 times [2018-09-19 11:03:01,316 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:03:01,317 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 162 with the following transitions: [2018-09-19 11:03:01,317 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:03:01,324 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:03:01,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:03:03,529 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:03:07,178 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:03:07,179 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 11:03:07,186 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:03:08,150 INFO L232 lantSequenceWeakener]: Weakened 159 states. On average, predicates are now at 78.83% of their original sizes. [2018-09-19 11:03:08,151 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:03:08,723 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:03:08,724 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:03:08,724 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 11:03:08,724 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:03:08,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 11:03:08,726 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 11:03:08,726 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 11:03:08,727 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 12 states. [2018-09-19 11:03:23,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:03:23,926 INFO L93 Difference]: Finished difference Result 1846 states and 3161 transitions. [2018-09-19 11:03:23,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 11:03:23,927 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 161 [2018-09-19 11:03:23,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:03:23,939 INFO L225 Difference]: With dead ends: 1846 [2018-09-19 11:03:23,939 INFO L226 Difference]: Without dead ends: 1446 [2018-09-19 11:03:23,943 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 172 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2018-09-19 11:03:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-09-19 11:03:24,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1435. [2018-09-19 11:03:24,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1435 states. [2018-09-19 11:03:24,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1798 transitions. [2018-09-19 11:03:24,009 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1798 transitions. Word has length 161 [2018-09-19 11:03:24,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:03:24,010 INFO L480 AbstractCegarLoop]: Abstraction has 1435 states and 1798 transitions. [2018-09-19 11:03:24,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 11:03:24,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1798 transitions. [2018-09-19 11:03:24,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-09-19 11:03:24,016 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:03:24,016 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:24,016 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:03:24,017 INFO L82 PathProgramCache]: Analyzing trace with hash 474501632, now seen corresponding path program 1 times [2018-09-19 11:03:24,017 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:03:24,017 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-09-19 11:03:24,018 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:03:24,024 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:03:24,025 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:03:26,942 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:03:32,130 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:03:32,131 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 11:03:32,136 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:03:33,325 INFO L232 lantSequenceWeakener]: Weakened 195 states. On average, predicates are now at 78.55% of their original sizes. [2018-09-19 11:03:33,327 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:03:33,745 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:03:33,745 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:03:33,746 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 11:03:33,746 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:03:33,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 11:03:33,747 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 11:03:33,747 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 11:03:33,747 INFO L87 Difference]: Start difference. First operand 1435 states and 1798 transitions. Second operand 12 states. [2018-09-19 11:03:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:03:53,485 INFO L93 Difference]: Finished difference Result 3241 states and 4630 transitions. [2018-09-19 11:03:53,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-19 11:03:53,486 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 197 [2018-09-19 11:03:53,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:03:53,504 INFO L225 Difference]: With dead ends: 3241 [2018-09-19 11:03:53,505 INFO L226 Difference]: Without dead ends: 2150 [2018-09-19 11:03:53,509 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 209 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2018-09-19 11:03:53,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2018-09-19 11:03:53,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2130. [2018-09-19 11:03:53,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2130 states. [2018-09-19 11:03:53,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2530 transitions. [2018-09-19 11:03:53,590 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2530 transitions. Word has length 197 [2018-09-19 11:03:53,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:03:53,591 INFO L480 AbstractCegarLoop]: Abstraction has 2130 states and 2530 transitions. [2018-09-19 11:03:53,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 11:03:53,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2530 transitions. [2018-09-19 11:03:53,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-09-19 11:03:53,598 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:03:53,599 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:03:53,599 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:03:53,599 INFO L82 PathProgramCache]: Analyzing trace with hash 984185312, now seen corresponding path program 1 times [2018-09-19 11:03:53,599 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:03:53,600 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 310 with the following transitions: [2018-09-19 11:03:53,600 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:03:53,612 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:03:53,612 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:04:05,094 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:04:05,094 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 11:04:05,103 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:04:06,383 INFO L232 lantSequenceWeakener]: Weakened 307 states. On average, predicates are now at 78.08% of their original sizes. [2018-09-19 11:04:06,384 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:04:06,798 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:04:06,798 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:04:06,798 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 11:04:06,799 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:04:06,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 11:04:06,800 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 11:04:06,800 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:04:06,800 INFO L87 Difference]: Start difference. First operand 2130 states and 2530 transitions. Second operand 13 states. [2018-09-19 11:04:22,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:04:22,562 INFO L93 Difference]: Finished difference Result 4257 states and 5387 transitions. [2018-09-19 11:04:22,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 11:04:22,572 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 309 [2018-09-19 11:04:22,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:04:22,584 INFO L225 Difference]: With dead ends: 4257 [2018-09-19 11:04:22,585 INFO L226 Difference]: Without dead ends: 2473 [2018-09-19 11:04:22,590 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 319 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 11:04:22,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2018-09-19 11:04:22,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2470. [2018-09-19 11:04:22,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2470 states. [2018-09-19 11:04:22,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 2888 transitions. [2018-09-19 11:04:22,678 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 2888 transitions. Word has length 309 [2018-09-19 11:04:22,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:04:22,679 INFO L480 AbstractCegarLoop]: Abstraction has 2470 states and 2888 transitions. [2018-09-19 11:04:22,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 11:04:22,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 2888 transitions. [2018-09-19 11:04:22,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-09-19 11:04:22,687 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:04:22,687 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:04:22,688 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:04:22,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1075980912, now seen corresponding path program 1 times [2018-09-19 11:04:22,688 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:04:22,688 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 318 with the following transitions: [2018-09-19 11:04:22,690 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:04:22,705 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:04:22,705 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:04:39,877 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:04:39,878 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 11:04:39,887 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:04:41,257 INFO L232 lantSequenceWeakener]: Weakened 315 states. On average, predicates are now at 78.06% of their original sizes. [2018-09-19 11:04:41,257 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:04:42,300 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:04:42,300 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:04:42,300 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 11:04:42,301 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:04:42,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 11:04:42,301 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 11:04:42,301 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 11:04:42,302 INFO L87 Difference]: Start difference. First operand 2470 states and 2888 transitions. Second operand 14 states. [2018-09-19 11:05:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:05:03,646 INFO L93 Difference]: Finished difference Result 4602 states and 5754 transitions. [2018-09-19 11:05:03,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 11:05:03,646 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 317 [2018-09-19 11:05:03,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:05:03,660 INFO L225 Difference]: With dead ends: 4602 [2018-09-19 11:05:03,660 INFO L226 Difference]: Without dead ends: 2818 [2018-09-19 11:05:03,667 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 329 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 11:05:03,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2018-09-19 11:05:03,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2812. [2018-09-19 11:05:03,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2812 states. [2018-09-19 11:05:03,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2812 states to 2812 states and 3252 transitions. [2018-09-19 11:05:03,747 INFO L78 Accepts]: Start accepts. Automaton has 2812 states and 3252 transitions. Word has length 317 [2018-09-19 11:05:03,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:05:03,748 INFO L480 AbstractCegarLoop]: Abstraction has 2812 states and 3252 transitions. [2018-09-19 11:05:03,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 11:05:03,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2812 states and 3252 transitions. [2018-09-19 11:05:03,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2018-09-19 11:05:03,759 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:05:03,759 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:05:03,760 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:05:03,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1330325789, now seen corresponding path program 1 times [2018-09-19 11:05:03,760 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:05:03,761 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 402 with the following transitions: [2018-09-19 11:05:03,761 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:05:03,766 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:05:03,766 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:05:05,434 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:05:26,883 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:05:26,884 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 11:05:26,892 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:05:29,011 INFO L232 lantSequenceWeakener]: Weakened 399 states. On average, predicates are now at 77.92% of their original sizes. [2018-09-19 11:05:29,012 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:05:29,453 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:05:29,454 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:05:29,454 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 11:05:29,455 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:05:29,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 11:05:29,456 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 11:05:29,456 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 11:05:29,458 INFO L87 Difference]: Start difference. First operand 2812 states and 3252 transitions. Second operand 12 states. [2018-09-19 11:05:43,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:05:43,129 INFO L93 Difference]: Finished difference Result 5310 states and 6501 transitions. [2018-09-19 11:05:43,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 11:05:43,130 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 401 [2018-09-19 11:05:43,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:05:43,144 INFO L225 Difference]: With dead ends: 5310 [2018-09-19 11:05:43,145 INFO L226 Difference]: Without dead ends: 3184 [2018-09-19 11:05:43,160 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 416 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2018-09-19 11:05:43,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2018-09-19 11:05:43,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 3167. [2018-09-19 11:05:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3167 states. [2018-09-19 11:05:43,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3167 states to 3167 states and 3635 transitions. [2018-09-19 11:05:43,246 INFO L78 Accepts]: Start accepts. Automaton has 3167 states and 3635 transitions. Word has length 401 [2018-09-19 11:05:43,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:05:43,247 INFO L480 AbstractCegarLoop]: Abstraction has 3167 states and 3635 transitions. [2018-09-19 11:05:43,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 11:05:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand 3167 states and 3635 transitions. [2018-09-19 11:05:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2018-09-19 11:05:43,259 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:05:43,260 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:05:43,260 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:05:43,260 INFO L82 PathProgramCache]: Analyzing trace with hash 635340284, now seen corresponding path program 1 times [2018-09-19 11:05:43,260 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:05:43,261 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 419 with the following transitions: [2018-09-19 11:05:43,261 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:05:43,266 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:05:43,266 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:05:50,576 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:06:06,636 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:06:06,636 INFO L272 AbstractInterpreter]: Visited 256 different actions 1013 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 11:06:06,642 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:06:08,244 INFO L232 lantSequenceWeakener]: Weakened 416 states. On average, predicates are now at 77.89% of their original sizes. [2018-09-19 11:06:08,245 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:06:08,644 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:06:08,644 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:06:08,644 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 11:06:08,644 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:06:08,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 11:06:08,645 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 11:06:08,646 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 11:06:08,646 INFO L87 Difference]: Start difference. First operand 3167 states and 3635 transitions. Second operand 13 states. [2018-09-19 11:06:20,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 11:06:20,061 INFO L93 Difference]: Finished difference Result 6003 states and 7253 transitions. [2018-09-19 11:06:20,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 11:06:20,063 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 418 [2018-09-19 11:06:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 11:06:20,075 INFO L225 Difference]: With dead ends: 6003 [2018-09-19 11:06:20,076 INFO L226 Difference]: Without dead ends: 3522 [2018-09-19 11:06:20,083 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 428 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2018-09-19 11:06:20,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2018-09-19 11:06:20,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3511. [2018-09-19 11:06:20,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3511 states. [2018-09-19 11:06:20,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3511 states to 3511 states and 4016 transitions. [2018-09-19 11:06:20,166 INFO L78 Accepts]: Start accepts. Automaton has 3511 states and 4016 transitions. Word has length 418 [2018-09-19 11:06:20,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 11:06:20,167 INFO L480 AbstractCegarLoop]: Abstraction has 3511 states and 4016 transitions. [2018-09-19 11:06:20,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 11:06:20,167 INFO L276 IsEmpty]: Start isEmpty. Operand 3511 states and 4016 transitions. [2018-09-19 11:06:20,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2018-09-19 11:06:20,175 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 11:06:20,176 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 11:06:20,176 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 11:06:20,176 INFO L82 PathProgramCache]: Analyzing trace with hash 436216741, now seen corresponding path program 1 times [2018-09-19 11:06:20,176 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 11:06:20,177 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 438 with the following transitions: [2018-09-19 11:06:20,177 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [627], [631], [633], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 11:06:20,182 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 11:06:20,182 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 11:06:22,561 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 11:06:42,086 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 11:06:42,086 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 11:06:42,094 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 11:06:43,680 INFO L232 lantSequenceWeakener]: Weakened 435 states. On average, predicates are now at 77.86% of their original sizes. [2018-09-19 11:06:43,680 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 11:06:44,024 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 11:06:44,024 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 11:06:44,024 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 11:06:44,025 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 11:06:44,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 11:06:44,026 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 11:06:44,026 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 11:06:44,027 INFO L87 Difference]: Start difference. First operand 3511 states and 4016 transitions. Second operand 12 states. Received shutdown request... [2018-09-19 11:07:01,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 11:07:01,771 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 11:07:01,777 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 11:07:01,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 11:07:01 BoogieIcfgContainer [2018-09-19 11:07:01,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 11:07:01,778 INFO L168 Benchmark]: Toolchain (without parser) took 261952.95 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 568.1 MB. Max. memory is 7.1 GB. [2018-09-19 11:07:01,782 INFO L168 Benchmark]: CDTParser took 0.29 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 11:07:01,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1105.15 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-09-19 11:07:01,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 232.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-19 11:07:01,784 INFO L168 Benchmark]: Boogie Preprocessor took 484.36 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 842.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -992.3 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-19 11:07:01,785 INFO L168 Benchmark]: RCFGBuilder took 6057.41 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 257.1 MB). Peak memory consumption was 257.1 MB. Max. memory is 7.1 GB. [2018-09-19 11:07:01,786 INFO L168 Benchmark]: TraceAbstraction took 254063.17 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 333.9 MB. Max. memory is 7.1 GB. [2018-09-19 11:07:01,791 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 1105.15 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 232.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 484.36 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 842.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -992.3 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6057.41 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 257.1 MB). Peak memory consumption was 257.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 254063.17 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 333.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 193]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 193). Cancelled while BasicCegarLoop was constructing difference of abstraction (3511states) and FLOYD_HOARE automaton (currently 26 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (4513 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 253.9s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 125.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3050 SDtfs, 15604 SDslu, 3629 SDs, 0 SdLazy, 37885 SolverSat, 3674 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 111.9s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2393 GetRequests, 2223 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3511occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 112.6s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9965625445544385 AbsIntWeakeningRatio, 0.07475010864841374 AbsIntAvgWeakeningVarsNumRemoved, 906.3424598000869 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 70 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label42_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_11-07-01-805.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label42_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_11-07-01-805.csv Completed graceful shutdown