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/Problem15_label21_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:15:50,929 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:15:50,932 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:15:50,951 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:15:50,951 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:15:50,953 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:15:50,955 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:15:50,957 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:15:50,959 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:15:50,960 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:15:50,961 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:15:50,962 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:15:50,963 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:15:50,966 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:15:50,973 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:15:50,974 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:15:50,977 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:15:50,979 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:15:50,983 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:15:50,988 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:15:50,990 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:15:50,992 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:15:50,996 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:15:50,997 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:15:50,997 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:15:50,999 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:15:50,999 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:15:51,000 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:15:51,001 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:15:51,002 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:15:51,004 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:15:51,004 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:15:51,004 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:15:51,005 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:15:51,007 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:15:51,008 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:15:51,008 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 [2018-09-15 12:15:51,037 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:15:51,037 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:15:51,038 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:15:51,039 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:15:51,039 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:15:51,039 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:15:51,039 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:15:51,042 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:15:51,042 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:15:51,043 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:15:51,043 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:15:51,044 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:15:51,044 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:15:51,044 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:15:51,044 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:15:51,044 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:15:51,044 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:15:51,045 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:15:51,045 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:15:51,045 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:15:51,045 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:15:51,047 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:15:51,048 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:15:51,048 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:15:51,048 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:15:51,048 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:15:51,048 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:15:51,049 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:15:51,049 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:15:51,049 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:15:51,049 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:15:51,049 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:15:51,049 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:15:51,123 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:15:51,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:15:51,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:15:51,151 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:15:51,151 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:15:51,152 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label21_true-unreach-call.c [2018-09-15 12:15:51,526 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c013a24a/ba3984d75ec740fc8c4a48a79f11aa77/FLAGee85b13d0 [2018-09-15 12:15:51,918 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:15:51,919 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label21_true-unreach-call.c [2018-09-15 12:15:51,943 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c013a24a/ba3984d75ec740fc8c4a48a79f11aa77/FLAGee85b13d0 [2018-09-15 12:15:51,964 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c013a24a/ba3984d75ec740fc8c4a48a79f11aa77 [2018-09-15 12:15:51,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:15:51,979 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:15:51,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:15:51,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:15:51,987 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:15:51,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:15:51" (1/1) ... [2018-09-15 12:15:51,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@529761f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:51, skipping insertion in model container [2018-09-15 12:15:51,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:15:51" (1/1) ... [2018-09-15 12:15:52,003 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:15:52,841 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:15:52,862 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:15:53,261 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:15:53,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53 WrapperNode [2018-09-15 12:15:53,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:15:53,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:15:53,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:15:53,433 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:15:53,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53" (1/1) ... [2018-09-15 12:15:53,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53" (1/1) ... [2018-09-15 12:15:53,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:15:53,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:15:53,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:15:53,680 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:15:54,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53" (1/1) ... [2018-09-15 12:15:54,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53" (1/1) ... [2018-09-15 12:15:54,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53" (1/1) ... [2018-09-15 12:15:54,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53" (1/1) ... [2018-09-15 12:15:54,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53" (1/1) ... [2018-09-15 12:15:54,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53" (1/1) ... [2018-09-15 12:15:54,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53" (1/1) ... [2018-09-15 12:15:54,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:15:54,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:15:54,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:15:54,361 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:15:54,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:15:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:15:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:15:54,433 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:15:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:15:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:15:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:15:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:15:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:15:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:15:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:16:02,421 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:16:02,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:16:02 BoogieIcfgContainer [2018-09-15 12:16:02,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:16:02,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:16:02,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:16:02,426 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:16:02,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:15:51" (1/3) ... [2018-09-15 12:16:02,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1e19aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:16:02, skipping insertion in model container [2018-09-15 12:16:02,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:15:53" (2/3) ... [2018-09-15 12:16:02,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1e19aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:16:02, skipping insertion in model container [2018-09-15 12:16:02,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:16:02" (3/3) ... [2018-09-15 12:16:02,429 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label21_true-unreach-call.c [2018-09-15 12:16:02,437 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:16:02,444 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:16:02,496 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:16:02,497 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:16:02,498 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:16:02,498 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:16:02,498 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:16:02,498 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:16:02,498 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:16:02,498 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:16:02,499 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:16:02,534 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-15 12:16:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-15 12:16:02,546 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:16:02,548 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] [2018-09-15 12:16:02,549 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:16:02,554 INFO L82 PathProgramCache]: Analyzing trace with hash -191617687, now seen corresponding path program 1 times [2018-09-15 12:16:02,557 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:16:02,558 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2018-09-15 12:16:02,561 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [509], [511], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-15 12:16:02,634 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:16:02,634 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:16:04,568 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:16:04,571 INFO L272 AbstractInterpreter]: Visited 66 different actions 66 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:16:04,623 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:16:05,519 INFO L232 lantSequenceWeakener]: Weakened 65 states. On average, predicates are now at 80.81% of their original sizes. [2018-09-15 12:16:05,519 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:16:05,849 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:16:05,851 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:16:05,851 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:16:05,851 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:16:05,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:16:05,866 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:16:05,868 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:16:05,871 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-15 12:16:14,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:16:14,902 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-15 12:16:14,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:16:14,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2018-09-15 12:16:14,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:16:14,929 INFO L225 Difference]: With dead ends: 1184 [2018-09-15 12:16:14,930 INFO L226 Difference]: Without dead ends: 744 [2018-09-15 12:16:14,941 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:16:14,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-15 12:16:15,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-15 12:16:15,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-15 12:16:15,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-15 12:16:15,079 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 67 [2018-09-15 12:16:15,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:16:15,080 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-15 12:16:15,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:16:15,083 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-15 12:16:15,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-09-15 12:16:15,097 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:16:15,097 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:16:15,098 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:16:15,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1433935553, now seen corresponding path program 1 times [2018-09-15 12:16:15,098 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:16:15,099 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 164 with the following transitions: [2018-09-15 12:16:15,100 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [509], [511], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:16:15,113 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:16:15,113 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:16:17,943 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:16:30,411 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:16:30,411 INFO L272 AbstractInterpreter]: Visited 103 different actions 393 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:16:30,427 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:16:32,329 INFO L232 lantSequenceWeakener]: Weakened 161 states. On average, predicates are now at 78.78% of their original sizes. [2018-09-15 12:16:32,329 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:16:34,023 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:16:34,024 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:16:34,024 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:16:34,024 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:16:34,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:16:34,026 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:16:34,026 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:16:34,026 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 12 states. [2018-09-15 12:16:58,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:16:58,732 INFO L93 Difference]: Finished difference Result 1798 states and 3052 transitions. [2018-09-15 12:16:58,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-15 12:16:58,733 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 163 [2018-09-15 12:16:58,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:16:58,743 INFO L225 Difference]: With dead ends: 1798 [2018-09-15 12:16:58,743 INFO L226 Difference]: Without dead ends: 1370 [2018-09-15 12:16:58,747 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 173 GetRequests, 122 SyntacticMatches, 30 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2018-09-15 12:16:58,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2018-09-15 12:16:58,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1365. [2018-09-15 12:16:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1365 states. [2018-09-15 12:16:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1724 transitions. [2018-09-15 12:16:58,826 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1724 transitions. Word has length 163 [2018-09-15 12:16:58,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:16:58,828 INFO L480 AbstractCegarLoop]: Abstraction has 1365 states and 1724 transitions. [2018-09-15 12:16:58,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:16:58,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1724 transitions. [2018-09-15 12:16:58,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-09-15 12:16:58,837 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:16:58,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:16:58,837 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:16:58,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1876038988, now seen corresponding path program 1 times [2018-09-15 12:16:58,838 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:16:58,838 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 306 with the following transitions: [2018-09-15 12:16:58,839 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [509], [511], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:16:58,852 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:16:58,852 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:17:05,663 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:17:19,377 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:17:19,378 INFO L272 AbstractInterpreter]: Visited 245 different actions 722 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:17:19,417 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:17:22,012 INFO L232 lantSequenceWeakener]: Weakened 303 states. On average, predicates are now at 78.07% of their original sizes. [2018-09-15 12:17:22,012 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:17:23,183 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:17:23,184 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:17:23,185 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:17:23,185 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:17:23,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:17:23,186 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:17:23,187 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:17:23,187 INFO L87 Difference]: Start difference. First operand 1365 states and 1724 transitions. Second operand 12 states. [2018-09-15 12:17:49,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:17:49,360 INFO L93 Difference]: Finished difference Result 2415 states and 3696 transitions. [2018-09-15 12:17:49,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:17:49,361 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 305 [2018-09-15 12:17:49,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:17:49,377 INFO L225 Difference]: With dead ends: 2415 [2018-09-15 12:17:49,377 INFO L226 Difference]: Without dead ends: 1987 [2018-09-15 12:17:49,381 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 312 GetRequests, 239 SyntacticMatches, 55 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:17:49,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2018-09-15 12:17:49,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1984. [2018-09-15 12:17:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1984 states. [2018-09-15 12:17:49,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 2361 transitions. [2018-09-15 12:17:49,467 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 2361 transitions. Word has length 305 [2018-09-15 12:17:49,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:17:49,468 INFO L480 AbstractCegarLoop]: Abstraction has 1984 states and 2361 transitions. [2018-09-15 12:17:49,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:17:49,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 2361 transitions. [2018-09-15 12:17:49,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2018-09-15 12:17:49,478 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:17:49,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:17:49,479 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:17:49,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1827872557, now seen corresponding path program 1 times [2018-09-15 12:17:49,480 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:17:49,480 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 307 with the following transitions: [2018-09-15 12:17:49,481 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [509], [511], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1382], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:17:49,492 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:17:49,492 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:17:56,618 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:18:24,177 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:18:24,177 INFO L272 AbstractInterpreter]: Visited 246 different actions 965 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:18:24,184 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:18:26,346 INFO L232 lantSequenceWeakener]: Weakened 304 states. On average, predicates are now at 78.07% of their original sizes. [2018-09-15 12:18:26,346 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:18:30,999 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:18:31,000 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:18:31,000 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-15 12:18:31,000 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:18:31,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-15 12:18:31,001 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-15 12:18:31,001 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-09-15 12:18:31,002 INFO L87 Difference]: Start difference. First operand 1984 states and 2361 transitions. Second operand 16 states. [2018-09-15 12:19:09,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:19:09,585 INFO L93 Difference]: Finished difference Result 3569 states and 5393 transitions. [2018-09-15 12:19:09,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-09-15 12:19:09,586 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 306 [2018-09-15 12:19:09,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:19:09,603 INFO L225 Difference]: With dead ends: 3569 [2018-09-15 12:19:09,603 INFO L226 Difference]: Without dead ends: 3141 [2018-09-15 12:19:09,609 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 324 GetRequests, 261 SyntacticMatches, 30 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=264, Invalid=926, Unknown=0, NotChecked=0, Total=1190 [2018-09-15 12:19:09,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2018-09-15 12:19:09,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2914. [2018-09-15 12:19:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2914 states. [2018-09-15 12:19:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3327 transitions. [2018-09-15 12:19:09,713 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3327 transitions. Word has length 306 [2018-09-15 12:19:09,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:19:09,714 INFO L480 AbstractCegarLoop]: Abstraction has 2914 states and 3327 transitions. [2018-09-15 12:19:09,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-15 12:19:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3327 transitions. [2018-09-15 12:19:09,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-09-15 12:19:09,722 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:19:09,723 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:19:09,723 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:19:09,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1666923556, now seen corresponding path program 1 times [2018-09-15 12:19:09,724 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:19:09,724 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 343 with the following transitions: [2018-09-15 12:19:09,725 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [509], [511], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-15 12:19:09,733 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:19:09,733 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:19:17,241 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:19:46,728 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:19:46,728 INFO L272 AbstractInterpreter]: Visited 282 different actions 558 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:19:46,736 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown