java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label25_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:25:05,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:25:05,951 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:25:05,966 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:25:05,966 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:25:05,967 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:25:05,969 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:25:05,971 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:25:05,973 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:25:05,975 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:25:05,979 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:25:05,979 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:25:05,980 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:25:05,983 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:25:05,985 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:25:05,990 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:25:05,992 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:25:05,994 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:25:05,996 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:25:05,997 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:25:05,998 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:25:06,000 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:25:06,002 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:25:06,002 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:25:06,003 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:25:06,004 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:25:06,005 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:25:06,005 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:25:06,006 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:25:06,007 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:25:06,007 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:25:06,008 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 04:25:06,008 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 04:25:06,009 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 04:25:06,010 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 04:25:06,011 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 04:25:06,011 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 04:25:06,034 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:25:06,036 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:25:06,038 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:25:06,038 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:25:06,038 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:25:06,039 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:25:06,040 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:25:06,043 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:25:06,044 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:25:06,044 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:25:06,044 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:25:06,045 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:25:06,047 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:25:06,048 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:25:06,049 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:25:06,049 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:25:06,049 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:25:06,050 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:25:06,051 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:25:06,051 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:25:06,051 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:25:06,052 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:25:06,052 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:25:06,052 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:25:06,052 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:25:06,053 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:25:06,053 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:25:06,053 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:25:06,053 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:25:06,054 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:25:06,054 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:25:06,054 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:25:06,054 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:25:06,054 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:25:06,122 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:25:06,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:25:06,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:25:06,151 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:25:06,151 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:25:06,152 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label25_true-unreach-call.c [2018-09-19 04:25:06,559 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0767e662c/1eeadddfa77f46b49cb6908f5fc856e7/FLAG681eed70d [2018-09-19 04:25:07,014 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:25:07,015 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label25_true-unreach-call.c [2018-09-19 04:25:07,041 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0767e662c/1eeadddfa77f46b49cb6908f5fc856e7/FLAG681eed70d [2018-09-19 04:25:07,067 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0767e662c/1eeadddfa77f46b49cb6908f5fc856e7 [2018-09-19 04:25:07,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:25:07,084 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:25:07,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:25:07,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:25:07,092 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:25:07,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:25:07" (1/1) ... [2018-09-19 04:25:07,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f57d78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:07, skipping insertion in model container [2018-09-19 04:25:07,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:25:07" (1/1) ... [2018-09-19 04:25:07,110 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:25:07,872 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:25:07,893 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:25:08,157 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:25:08,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08 WrapperNode [2018-09-19 04:25:08,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:25:08,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:25:08,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:25:08,271 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:25:08,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08" (1/1) ... [2018-09-19 04:25:08,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08" (1/1) ... [2018-09-19 04:25:08,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:25:08,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:25:08,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:25:08,505 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:25:08,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08" (1/1) ... [2018-09-19 04:25:08,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08" (1/1) ... [2018-09-19 04:25:08,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08" (1/1) ... [2018-09-19 04:25:08,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08" (1/1) ... [2018-09-19 04:25:09,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08" (1/1) ... [2018-09-19 04:25:09,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08" (1/1) ... [2018-09-19 04:25:09,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08" (1/1) ... [2018-09-19 04:25:09,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:25:09,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:25:09,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:25:09,123 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:25:09,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:25:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:25:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:25:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:25:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:25:09,196 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:25:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:25:09,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:25:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:25:09,196 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:25:09,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:25:15,824 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:25:15,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:25:15 BoogieIcfgContainer [2018-09-19 04:25:15,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:25:15,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:25:15,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:25:15,830 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:25:15,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:25:07" (1/3) ... [2018-09-19 04:25:15,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a3470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:25:15, skipping insertion in model container [2018-09-19 04:25:15,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:25:08" (2/3) ... [2018-09-19 04:25:15,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a3470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:25:15, skipping insertion in model container [2018-09-19 04:25:15,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:25:15" (3/3) ... [2018-09-19 04:25:15,834 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label25_true-unreach-call.c [2018-09-19 04:25:15,845 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:25:15,855 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:25:15,914 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:25:15,915 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:25:15,915 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:25:15,915 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:25:15,915 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:25:15,915 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:25:15,916 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:25:15,916 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:25:15,916 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:25:15,948 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 04:25:15,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-09-19 04:25:15,964 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:25:15,965 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] [2018-09-19 04:25:15,966 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:25:15,972 INFO L82 PathProgramCache]: Analyzing trace with hash -154170549, now seen corresponding path program 1 times [2018-09-19 04:25:15,975 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:25:15,976 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 58 with the following transitions: [2018-09-19 04:25:15,979 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], [535], [537], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-19 04:25:16,047 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:25:16,048 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:25:17,699 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:25:17,701 INFO L272 AbstractInterpreter]: Visited 56 different actions 56 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:25:17,717 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:25:18,428 INFO L232 lantSequenceWeakener]: Weakened 55 states. On average, predicates are now at 80.63% of their original sizes. [2018-09-19 04:25:18,428 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:25:18,713 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:25:18,714 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:25:18,715 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:25:18,715 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:25:18,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:25:18,728 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:25:18,729 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:25:18,732 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 04:25:25,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:25:25,572 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 04:25:25,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:25:25,576 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-09-19 04:25:25,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:25:25,597 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 04:25:25,597 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 04:25:25,607 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 56 GetRequests, 52 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 04:25:25,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 04:25:25,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 04:25:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 04:25:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 04:25:25,713 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 57 [2018-09-19 04:25:25,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:25:25,714 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 04:25:25,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:25:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 04:25:25,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-09-19 04:25:25,722 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:25:25,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:25,723 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:25:25,724 INFO L82 PathProgramCache]: Analyzing trace with hash -368096056, now seen corresponding path program 1 times [2018-09-19 04:25:25,724 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:25:25,724 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-09-19 04:25:25,725 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], [535], [537], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:25:25,731 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:25:25,732 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:25:28,001 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:25:32,506 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:25:32,506 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 04:25:32,515 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:25:33,796 INFO L232 lantSequenceWeakener]: Weakened 147 states. On average, predicates are now at 78.59% of their original sizes. [2018-09-19 04:25:33,796 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:25:34,379 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:25:34,379 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:25:34,380 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:25:34,380 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:25:34,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:25:34,381 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:25:34,382 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:25:34,382 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-19 04:25:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:25:51,594 INFO L93 Difference]: Finished difference Result 1772 states and 3024 transitions. [2018-09-19 04:25:51,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:25:51,594 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 149 [2018-09-19 04:25:51,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:25:51,603 INFO L225 Difference]: With dead ends: 1772 [2018-09-19 04:25:51,603 INFO L226 Difference]: Without dead ends: 1372 [2018-09-19 04:25:51,607 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 157 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:25:51,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2018-09-19 04:25:51,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1094. [2018-09-19 04:25:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-09-19 04:25:51,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1441 transitions. [2018-09-19 04:25:51,666 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1441 transitions. Word has length 149 [2018-09-19 04:25:51,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:25:51,667 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1441 transitions. [2018-09-19 04:25:51,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:25:51,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1441 transitions. [2018-09-19 04:25:51,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-09-19 04:25:51,673 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:25:51,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:25:51,674 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:25:51,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1000825680, now seen corresponding path program 1 times [2018-09-19 04:25:51,674 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:25:51,675 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-09-19 04:25:51,675 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], [535], [537], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:25:51,683 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:25:51,683 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:25:55,223 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:26:02,470 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:26:02,470 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 04:26:02,485 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:26:03,928 INFO L232 lantSequenceWeakener]: Weakened 183 states. On average, predicates are now at 78.33% of their original sizes. [2018-09-19 04:26:03,929 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:26:04,659 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:26:04,660 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:26:04,660 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:26:04,660 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:26:04,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:26:04,661 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:26:04,662 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:26:04,662 INFO L87 Difference]: Start difference. First operand 1094 states and 1441 transitions. Second operand 11 states. [2018-09-19 04:26:21,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:26:21,228 INFO L93 Difference]: Finished difference Result 2749 states and 4050 transitions. [2018-09-19 04:26:21,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:26:21,243 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 185 [2018-09-19 04:26:21,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:26:21,253 INFO L225 Difference]: With dead ends: 2749 [2018-09-19 04:26:21,253 INFO L226 Difference]: Without dead ends: 1999 [2018-09-19 04:26:21,257 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 193 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:26:21,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2018-09-19 04:26:21,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1450. [2018-09-19 04:26:21,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-09-19 04:26:21,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1815 transitions. [2018-09-19 04:26:21,330 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1815 transitions. Word has length 185 [2018-09-19 04:26:21,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:26:21,331 INFO L480 AbstractCegarLoop]: Abstraction has 1450 states and 1815 transitions. [2018-09-19 04:26:21,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:26:21,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1815 transitions. [2018-09-19 04:26:21,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2018-09-19 04:26:21,338 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:26:21,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:21,339 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:26:21,339 INFO L82 PathProgramCache]: Analyzing trace with hash -337978576, now seen corresponding path program 1 times [2018-09-19 04:26:21,339 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:26:21,339 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 298 with the following transitions: [2018-09-19 04:26:21,340 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], [535], [537], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:26:21,350 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:26:21,350 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:26:34,132 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:26:34,133 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 04:26:34,140 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:26:35,996 INFO L232 lantSequenceWeakener]: Weakened 295 states. On average, predicates are now at 77.93% of their original sizes. [2018-09-19 04:26:35,996 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:26:36,435 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:26:36,436 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:26:36,436 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:26:36,436 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:26:36,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:26:36,437 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:26:36,437 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:26:36,438 INFO L87 Difference]: Start difference. First operand 1450 states and 1815 transitions. Second operand 13 states. [2018-09-19 04:26:45,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:26:45,414 INFO L93 Difference]: Finished difference Result 2897 states and 3954 transitions. [2018-09-19 04:26:45,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:26:45,415 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 297 [2018-09-19 04:26:45,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:26:45,425 INFO L225 Difference]: With dead ends: 2897 [2018-09-19 04:26:45,425 INFO L226 Difference]: Without dead ends: 1793 [2018-09-19 04:26:45,429 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 307 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:26:45,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2018-09-19 04:26:45,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1790. [2018-09-19 04:26:45,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2018-09-19 04:26:45,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2172 transitions. [2018-09-19 04:26:45,490 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2172 transitions. Word has length 297 [2018-09-19 04:26:45,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:26:45,490 INFO L480 AbstractCegarLoop]: Abstraction has 1790 states and 2172 transitions. [2018-09-19 04:26:45,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:26:45,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2172 transitions. [2018-09-19 04:26:45,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-09-19 04:26:45,496 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:26:45,496 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:26:45,497 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:26:45,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1740168256, now seen corresponding path program 1 times [2018-09-19 04:26:45,497 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:26:45,498 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 306 with the following transitions: [2018-09-19 04:26:45,498 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], [535], [537], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:26:45,514 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:26:45,515 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:27:04,267 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:27:04,268 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 04:27:04,272 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:27:05,915 INFO L232 lantSequenceWeakener]: Weakened 303 states. On average, predicates are now at 77.91% of their original sizes. [2018-09-19 04:27:05,915 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:27:06,470 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:27:06,471 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:27:06,471 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:27:06,471 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:27:06,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:27:06,472 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:27:06,472 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:27:06,473 INFO L87 Difference]: Start difference. First operand 1790 states and 2172 transitions. Second operand 14 states. [2018-09-19 04:27:18,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:27:18,047 INFO L93 Difference]: Finished difference Result 3242 states and 4318 transitions. [2018-09-19 04:27:18,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 04:27:18,048 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 305 [2018-09-19 04:27:18,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:27:18,059 INFO L225 Difference]: With dead ends: 3242 [2018-09-19 04:27:18,059 INFO L226 Difference]: Without dead ends: 2138 [2018-09-19 04:27:18,062 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 317 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:27:18,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2018-09-19 04:27:18,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2132. [2018-09-19 04:27:18,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2018-09-19 04:27:18,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2533 transitions. [2018-09-19 04:27:18,128 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2533 transitions. Word has length 305 [2018-09-19 04:27:18,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:27:18,129 INFO L480 AbstractCegarLoop]: Abstraction has 2132 states and 2533 transitions. [2018-09-19 04:27:18,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:27:18,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2533 transitions. [2018-09-19 04:27:18,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-09-19 04:27:18,138 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:27:18,139 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:27:18,139 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:27:18,139 INFO L82 PathProgramCache]: Analyzing trace with hash 643143341, now seen corresponding path program 1 times [2018-09-19 04:27:18,139 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:27:18,140 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 390 with the following transitions: [2018-09-19 04:27:18,140 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], [535], [537], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [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 04:27:18,147 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:27:18,148 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:27:20,244 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:27:45,051 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:27:45,051 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 04:27:45,053 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:27:47,659 INFO L232 lantSequenceWeakener]: Weakened 387 states. On average, predicates are now at 77.8% of their original sizes. [2018-09-19 04:27:47,659 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:27:47,995 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:27:47,996 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:27:47,996 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:27:47,996 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:27:47,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:27:47,997 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:27:47,997 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:27:47,997 INFO L87 Difference]: Start difference. First operand 2132 states and 2533 transitions. Second operand 11 states. [2018-09-19 04:28:03,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:28:03,592 INFO L93 Difference]: Finished difference Result 4495 states and 5901 transitions. [2018-09-19 04:28:03,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 04:28:03,592 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 389 [2018-09-19 04:28:03,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:28:03,608 INFO L225 Difference]: With dead ends: 4495 [2018-09-19 04:28:03,609 INFO L226 Difference]: Without dead ends: 3049 [2018-09-19 04:28:03,615 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 399 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-09-19 04:28:03,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2018-09-19 04:28:03,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 2489. [2018-09-19 04:28:03,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2018-09-19 04:28:03,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2917 transitions. [2018-09-19 04:28:03,690 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2917 transitions. Word has length 389 [2018-09-19 04:28:03,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:28:03,691 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 2917 transitions. [2018-09-19 04:28:03,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:28:03,691 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2917 transitions. [2018-09-19 04:28:03,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2018-09-19 04:28:03,701 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:28:03,702 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:28:03,702 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:28:03,702 INFO L82 PathProgramCache]: Analyzing trace with hash 838203148, now seen corresponding path program 1 times [2018-09-19 04:28:03,703 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:28:03,703 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 407 with the following transitions: [2018-09-19 04:28:03,703 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], [535], [537], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [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 04:28:03,709 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:28:03,710 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:28:12,294 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:28:30,969 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:28:30,969 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 04:28:30,976 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:28:33,464 INFO L232 lantSequenceWeakener]: Weakened 404 states. On average, predicates are now at 77.78% of their original sizes. [2018-09-19 04:28:33,464 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:28:33,862 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:28:33,863 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:28:33,863 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:28:33,863 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:28:33,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:28:33,864 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:28:33,864 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:28:33,865 INFO L87 Difference]: Start difference. First operand 2489 states and 2917 transitions. Second operand 13 states. [2018-09-19 04:28:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:28:44,964 INFO L93 Difference]: Finished difference Result 4647 states and 5816 transitions. [2018-09-19 04:28:44,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:28:44,967 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 406 [2018-09-19 04:28:44,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:28:44,980 INFO L225 Difference]: With dead ends: 4647 [2018-09-19 04:28:44,980 INFO L226 Difference]: Without dead ends: 2844 [2018-09-19 04:28:44,987 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 416 GetRequests, 394 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 04:28:44,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2018-09-19 04:28:45,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2833. [2018-09-19 04:28:45,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2018-09-19 04:28:45,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3297 transitions. [2018-09-19 04:28:45,072 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3297 transitions. Word has length 406 [2018-09-19 04:28:45,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:28:45,073 INFO L480 AbstractCegarLoop]: Abstraction has 2833 states and 3297 transitions. [2018-09-19 04:28:45,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:28:45,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3297 transitions. [2018-09-19 04:28:45,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2018-09-19 04:28:45,080 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:28:45,080 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:28:45,081 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:28:45,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1692056885, now seen corresponding path program 1 times [2018-09-19 04:28:45,081 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:28:45,082 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 426 with the following transitions: [2018-09-19 04:28:45,082 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], [535], [537], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [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 04:28:45,088 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:28:45,088 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:28:47,988 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:29:11,150 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:29:11,151 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 04:29:11,163 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:29:13,283 INFO L232 lantSequenceWeakener]: Weakened 423 states. On average, predicates are now at 77.75% of their original sizes. [2018-09-19 04:29:13,283 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:29:13,587 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:29:13,587 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:29:13,587 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:29:13,587 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:29:13,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:29:13,588 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:29:13,588 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:29:13,589 INFO L87 Difference]: Start difference. First operand 2833 states and 3297 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 04:29:18,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 04:29:18,278 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:29:18,282 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:29:18,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:29:18 BoogieIcfgContainer [2018-09-19 04:29:18,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:29:18,284 INFO L168 Benchmark]: Toolchain (without parser) took 251202.74 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-19 04:29:18,286 INFO L168 Benchmark]: CDTParser took 0.22 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 04:29:18,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1185.58 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-09-19 04:29:18,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 233.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 04:29:18,288 INFO L168 Benchmark]: Boogie Preprocessor took 616.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 806.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -953.6 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-19 04:29:18,288 INFO L168 Benchmark]: RCFGBuilder took 6703.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 263.1 MB). Peak memory consumption was 263.1 MB. Max. memory is 7.1 GB. [2018-09-19 04:29:18,289 INFO L168 Benchmark]: TraceAbstraction took 242456.74 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -598.6 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-19 04:29:18,294 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1185.58 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 233.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 616.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 806.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -953.6 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6703.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 263.1 MB). Peak memory consumption was 263.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 242456.74 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.6 GB in the end (delta: -598.6 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: 157]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 157). Cancelled while BasicCegarLoop was constructing difference of abstraction (2833states) and FLOYD_HOARE automaton (currently 15 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (881 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 242.3s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 92.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2813 SDtfs, 14663 SDslu, 2299 SDs, 0 SdLazy, 28190 SolverSat, 3350 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.7s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2278 GetRequests, 2131 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 5.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2833occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 131.1s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9964128866302782 AbsIntWeakeningRatio, 0.07800453514739229 AbsIntAvgWeakeningVarsNumRemoved, 921.4421768707483 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 1409 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_label25_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-29-18-308.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label25_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-29-18-308.csv Completed graceful shutdown