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/Problem17_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:31:48,205 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:31:48,207 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:31:48,219 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:31:48,219 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:31:48,220 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:31:48,221 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:31:48,223 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:31:48,225 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:31:48,225 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:31:48,226 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:31:48,227 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:31:48,228 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:31:48,228 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:31:48,230 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:31:48,230 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:31:48,231 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:31:48,233 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:31:48,235 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:31:48,237 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:31:48,238 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:31:48,239 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:31:48,245 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:31:48,245 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:31:48,245 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:31:48,246 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:31:48,250 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:31:48,253 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:31:48,254 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:31:48,256 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:31:48,256 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:31:48,256 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 04:31:48,263 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 04:31:48,295 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:31:48,295 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:31:48,296 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:31:48,299 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:31:48,299 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:31:48,300 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:31:48,300 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:31:48,300 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:31:48,300 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:31:48,300 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:31:48,301 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:31:48,301 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:31:48,302 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:31:48,302 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:31:48,302 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:31:48,302 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:31:48,303 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:31:48,303 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:31:48,303 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:31:48,303 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:31:48,303 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:31:48,304 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:31:48,304 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:31:48,304 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:31:48,304 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:31:48,304 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:31:48,304 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:31:48,305 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:31:48,305 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:31:48,305 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:31:48,305 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:31:48,305 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:31:48,306 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:31:48,306 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:31:48,375 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:31:48,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:31:48,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:31:48,403 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:31:48,404 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:31:48,405 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-09-19 04:31:48,757 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62274d027/896aba2c9ef746f7b2436184957409a7/FLAGcdf858c85 [2018-09-19 04:31:49,182 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:31:49,183 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label01_true-unreach-call.c [2018-09-19 04:31:49,210 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62274d027/896aba2c9ef746f7b2436184957409a7/FLAGcdf858c85 [2018-09-19 04:31:49,227 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62274d027/896aba2c9ef746f7b2436184957409a7 [2018-09-19 04:31:49,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:31:49,243 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:31:49,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:31:49,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:31:49,251 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:31:49,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:31:49" (1/1) ... [2018-09-19 04:31:49,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359f2bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:49, skipping insertion in model container [2018-09-19 04:31:49,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:31:49" (1/1) ... [2018-09-19 04:31:49,268 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:31:50,274 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:31:50,295 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:31:50,708 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:31:50,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50 WrapperNode [2018-09-19 04:31:50,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:31:50,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:31:50,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:31:50,972 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:31:50,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50" (1/1) ... [2018-09-19 04:31:51,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50" (1/1) ... [2018-09-19 04:31:51,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:31:51,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:31:51,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:31:51,309 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:31:51,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50" (1/1) ... [2018-09-19 04:31:51,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50" (1/1) ... [2018-09-19 04:31:52,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50" (1/1) ... [2018-09-19 04:31:52,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50" (1/1) ... [2018-09-19 04:31:52,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50" (1/1) ... [2018-09-19 04:31:52,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50" (1/1) ... [2018-09-19 04:31:52,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50" (1/1) ... [2018-09-19 04:31:52,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:31:52,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:31:52,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:31:52,292 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:31:52,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50" (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 04:31:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:31:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:31:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:31:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:31:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:31:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:31:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:31:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:31:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:31:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:32:05,268 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:32:05,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:32:05 BoogieIcfgContainer [2018-09-19 04:32:05,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:32:05,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:32:05,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:32:05,275 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:32:05,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:31:49" (1/3) ... [2018-09-19 04:32:05,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105d4fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:32:05, skipping insertion in model container [2018-09-19 04:32:05,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:50" (2/3) ... [2018-09-19 04:32:05,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@105d4fc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:32:05, skipping insertion in model container [2018-09-19 04:32:05,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:32:05" (3/3) ... [2018-09-19 04:32:05,279 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label01_true-unreach-call.c [2018-09-19 04:32:05,289 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:32:05,299 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:32:05,359 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:32:05,359 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:32:05,360 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:32:05,360 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:32:05,360 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:32:05,360 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:32:05,360 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:32:05,361 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:32:05,361 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:32:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-19 04:32:05,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-19 04:32:05,411 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:32:05,412 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] [2018-09-19 04:32:05,413 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:32:05,418 INFO L82 PathProgramCache]: Analyzing trace with hash -412274706, now seen corresponding path program 1 times [2018-09-19 04:32:05,420 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:32:05,421 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 54 with the following transitions: [2018-09-19 04:32:05,425 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-19 04:32:05,504 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:32:05,504 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:32:07,437 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:32:07,439 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 04:32:07,465 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:32:08,501 INFO L232 lantSequenceWeakener]: Weakened 51 states. On average, predicates are now at 77.79% of their original sizes. [2018-09-19 04:32:08,502 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:32:08,795 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:32:08,797 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:32:08,797 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:32:08,797 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:32:08,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:32:08,811 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:32:08,812 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:32:08,815 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-19 04:32:28,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:32:28,762 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-19 04:32:28,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:32:28,766 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2018-09-19 04:32:28,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:32:28,794 INFO L225 Difference]: With dead ends: 1642 [2018-09-19 04:32:28,795 INFO L226 Difference]: Without dead ends: 1036 [2018-09-19 04:32:28,806 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 52 GetRequests, 48 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 04:32:28,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-19 04:32:28,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-19 04:32:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-19 04:32:28,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-19 04:32:28,956 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 53 [2018-09-19 04:32:28,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:32:28,957 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-19 04:32:28,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:32:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-19 04:32:28,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-09-19 04:32:28,969 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:32:28,969 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:28,970 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:32:28,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1326175065, now seen corresponding path program 1 times [2018-09-19 04:32:28,971 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:32:28,971 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 129 with the following transitions: [2018-09-19 04:32:28,972 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:32:28,985 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:32:28,986 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:32:31,371 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:32:38,368 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:32:38,369 INFO L272 AbstractInterpreter]: Visited 82 different actions 233 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 04:32:38,411 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:32:40,310 INFO L232 lantSequenceWeakener]: Weakened 126 states. On average, predicates are now at 76.2% of their original sizes. [2018-09-19 04:32:40,311 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:32:41,333 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:32:41,334 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:32:41,334 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:32:41,334 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:32:41,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:32:41,336 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:32:41,336 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:32:41,337 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 13 states. [2018-09-19 04:33:19,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:33:19,677 INFO L93 Difference]: Finished difference Result 2814 states and 4895 transitions. [2018-09-19 04:33:19,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 04:33:19,679 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 128 [2018-09-19 04:33:19,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:33:19,696 INFO L225 Difference]: With dead ends: 2814 [2018-09-19 04:33:19,696 INFO L226 Difference]: Without dead ends: 2220 [2018-09-19 04:33:19,702 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 141 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:33:19,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2018-09-19 04:33:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1497. [2018-09-19 04:33:19,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2018-09-19 04:33:19,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2009 transitions. [2018-09-19 04:33:19,771 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2009 transitions. Word has length 128 [2018-09-19 04:33:19,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:33:19,772 INFO L480 AbstractCegarLoop]: Abstraction has 1497 states and 2009 transitions. [2018-09-19 04:33:19,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:33:19,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2009 transitions. [2018-09-19 04:33:19,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-09-19 04:33:19,780 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:33:19,780 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:33:19,783 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:33:19,784 INFO L82 PathProgramCache]: Analyzing trace with hash 89172255, now seen corresponding path program 1 times [2018-09-19 04:33:19,784 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:33:19,784 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 142 with the following transitions: [2018-09-19 04:33:19,785 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:33:19,797 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:33:19,798 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:33:22,612 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:33:28,847 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:33:28,847 INFO L272 AbstractInterpreter]: Visited 95 different actions 272 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 04:33:28,863 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:33:30,051 INFO L232 lantSequenceWeakener]: Weakened 139 states. On average, predicates are now at 76.08% of their original sizes. [2018-09-19 04:33:30,051 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:33:30,715 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:33:30,715 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:33:30,715 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:33:30,716 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:33:30,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:33:30,716 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:33:30,717 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:33:30,717 INFO L87 Difference]: Start difference. First operand 1497 states and 2009 transitions. Second operand 11 states. [2018-09-19 04:33:54,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:33:54,968 INFO L93 Difference]: Finished difference Result 2646 states and 4140 transitions. [2018-09-19 04:33:54,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 04:33:54,974 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 141 [2018-09-19 04:33:54,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:33:54,988 INFO L225 Difference]: With dead ends: 2646 [2018-09-19 04:33:54,988 INFO L226 Difference]: Without dead ends: 2052 [2018-09-19 04:33:54,992 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 149 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:33:54,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2018-09-19 04:33:55,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 1962. [2018-09-19 04:33:55,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2018-09-19 04:33:55,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2620 transitions. [2018-09-19 04:33:55,060 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2620 transitions. Word has length 141 [2018-09-19 04:33:55,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:33:55,061 INFO L480 AbstractCegarLoop]: Abstraction has 1962 states and 2620 transitions. [2018-09-19 04:33:55,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:33:55,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2620 transitions. [2018-09-19 04:33:55,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-19 04:33:55,069 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:33:55,070 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, 2, 2, 2, 2, 2, 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] [2018-09-19 04:33:55,070 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:33:55,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1537057674, now seen corresponding path program 1 times [2018-09-19 04:33:55,070 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:33:55,071 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-09-19 04:33:55,071 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:33:55,076 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:33:55,076 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:33:56,692 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:34:12,416 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:34:12,417 INFO L272 AbstractInterpreter]: Visited 96 different actions 558 times. Merged at 7 different actions 37 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 04:34:12,422 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:34:14,066 INFO L232 lantSequenceWeakener]: Weakened 214 states. On average, predicates are now at 75.74% of their original sizes. [2018-09-19 04:34:14,067 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:34:14,570 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:34:14,571 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:34:14,571 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 04:34:14,571 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:34:14,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 04:34:14,572 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 04:34:14,572 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 04:34:14,573 INFO L87 Difference]: Start difference. First operand 1962 states and 2620 transitions. Second operand 12 states. [2018-09-19 04:34:42,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:34:42,153 INFO L93 Difference]: Finished difference Result 3982 states and 6007 transitions. [2018-09-19 04:34:42,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 04:34:42,159 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 216 [2018-09-19 04:34:42,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:34:42,181 INFO L225 Difference]: With dead ends: 3982 [2018-09-19 04:34:42,181 INFO L226 Difference]: Without dead ends: 3388 [2018-09-19 04:34:42,186 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 04:34:42,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2018-09-19 04:34:42,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 2433. [2018-09-19 04:34:42,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2433 states. [2018-09-19 04:34:42,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3279 transitions. [2018-09-19 04:34:42,284 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3279 transitions. Word has length 216 [2018-09-19 04:34:42,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:34:42,285 INFO L480 AbstractCegarLoop]: Abstraction has 2433 states and 3279 transitions. [2018-09-19 04:34:42,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 04:34:42,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3279 transitions. [2018-09-19 04:34:42,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-09-19 04:34:42,289 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:34:42,290 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, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 04:34:42,290 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:34:42,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1529951560, now seen corresponding path program 1 times [2018-09-19 04:34:42,291 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:34:42,291 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-09-19 04:34:42,291 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:34:42,301 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:34:42,302 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:34:44,423 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:35:00,569 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:35:00,569 INFO L272 AbstractInterpreter]: Visited 96 different actions 461 times. Merged at 7 different actions 25 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 04:35:00,577 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:35:02,483 INFO L232 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 75.74% of their original sizes. [2018-09-19 04:35:02,483 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:35:02,858 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:35:02,859 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:35:02,859 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:35:02,859 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:35:02,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:35:02,860 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:35:02,860 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:35:02,860 INFO L87 Difference]: Start difference. First operand 2433 states and 3279 transitions. Second operand 11 states. [2018-09-19 04:35:37,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:35:37,349 INFO L93 Difference]: Finished difference Result 4146 states and 6156 transitions. [2018-09-19 04:35:37,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 04:35:37,350 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2018-09-19 04:35:37,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:35:37,369 INFO L225 Difference]: With dead ends: 4146 [2018-09-19 04:35:37,369 INFO L226 Difference]: Without dead ends: 3552 [2018-09-19 04:35:37,373 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:35:37,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2018-09-19 04:35:37,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3371. [2018-09-19 04:35:37,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3371 states. [2018-09-19 04:35:37,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4576 transitions. [2018-09-19 04:35:37,488 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4576 transitions. Word has length 217 [2018-09-19 04:35:37,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:35:37,489 INFO L480 AbstractCegarLoop]: Abstraction has 3371 states and 4576 transitions. [2018-09-19 04:35:37,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:35:37,489 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4576 transitions. [2018-09-19 04:35:37,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-09-19 04:35:37,494 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:35:37,495 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:35:37,495 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:35:37,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1964833140, now seen corresponding path program 1 times [2018-09-19 04:35:37,495 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:35:37,496 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-09-19 04:35:37,496 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1034], [1036], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1231], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:35:37,500 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:35:37,500 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:35:39,902 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:35:47,936 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:35:47,937 INFO L272 AbstractInterpreter]: Visited 96 different actions 371 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 04:35:47,941 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:35:49,325 INFO L232 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 75.74% of their original sizes. [2018-09-19 04:35:49,325 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:35:49,720 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:35:49,720 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:35:49,720 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:35:49,720 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:35:49,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:35:49,721 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:35:49,721 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:35:49,721 INFO L87 Difference]: Start difference. First operand 3371 states and 4576 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 04:35:58,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 04:35:58,876 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:35:58,883 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:35:58,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:35:58 BoogieIcfgContainer [2018-09-19 04:35:58,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:35:58,885 INFO L168 Benchmark]: Toolchain (without parser) took 249644.77 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-19 04:35:58,887 INFO L168 Benchmark]: CDTParser took 0.29 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 04:35:58,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1726.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 169.1 MB). Peak memory consumption was 169.1 MB. Max. memory is 7.1 GB. [2018-09-19 04:35:58,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 336.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-19 04:35:58,889 INFO L168 Benchmark]: Boogie Preprocessor took 982.69 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 921.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. [2018-09-19 04:35:58,890 INFO L168 Benchmark]: RCFGBuilder took 12978.36 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 451.7 MB). Peak memory consumption was 451.7 MB. Max. memory is 7.1 GB. [2018-09-19 04:35:58,891 INFO L168 Benchmark]: TraceAbstraction took 233613.11 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 3.0 GB in the end (delta: -1.2 GB). Peak memory consumption was 640.1 MB. Max. memory is 7.1 GB. [2018-09-19 04:35:58,897 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1726.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 169.1 MB). Peak memory consumption was 169.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 336.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 982.69 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 921.7 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12978.36 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 451.7 MB). Peak memory consumption was 451.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 233613.11 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 3.0 GB in the end (delta: -1.2 GB). Peak memory consumption was 640.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 146]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 146). Cancelled while BasicCegarLoop was constructing difference of abstraction (3371states) and FLOYD_HOARE automaton (currently 15 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (1015 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 233.5s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 153.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2902 SDtfs, 14556 SDslu, 3191 SDs, 0 SdLazy, 30194 SolverSat, 2818 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 141.2s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 1018 GetRequests, 915 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3371occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 66.6s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9939796621854533 AbsIntWeakeningRatio, 0.14270941054808686 AbsIntAvgWeakeningVarsNumRemoved, 1069.0330920372285 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 1951 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label01_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-35-58-910.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label01_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-35-58-910.csv Completed graceful shutdown