java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:22:20,293 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:22:20,296 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:22:20,313 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:22:20,314 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:22:20,315 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:22:20,317 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:22:20,319 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:22:20,322 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:22:20,330 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:22:20,331 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:22:20,331 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:22:20,332 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:22:20,333 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:22:20,336 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:22:20,337 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:22:20,338 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:22:20,340 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:22:20,344 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:22:20,347 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:22:20,349 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:22:20,350 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:22:20,354 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:22:20,355 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:22:20,355 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:22:20,356 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:22:20,357 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:22:20,358 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:22:20,359 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:22:20,359 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:22:20,360 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:22:20,360 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 04:22:20,361 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 04:22:20,361 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 04:22:20,362 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 04:22:20,362 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 04:22:20,363 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 04:22:20,384 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:22:20,384 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:22:20,385 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:22:20,385 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:22:20,385 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:22:20,386 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:22:20,386 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:22:20,386 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:22:20,386 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:22:20,386 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:22:20,387 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:22:20,387 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:22:20,387 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:22:20,388 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:22:20,388 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:22:20,388 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:22:20,388 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:22:20,389 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:22:20,390 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:22:20,390 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:22:20,390 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:22:20,390 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:22:20,391 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:22:20,391 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:22:20,391 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:22:20,391 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:22:20,392 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:22:20,392 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:22:20,392 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:22:20,392 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:22:20,393 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:22:20,393 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:22:20,393 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:22:20,393 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:22:20,449 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:22:20,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:22:20,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:22:20,472 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:22:20,472 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:22:20,473 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c [2018-09-19 04:22:20,830 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38a790192/73914d0403914997b451792e2c3fed4c/FLAG62a23c572 [2018-09-19 04:22:21,210 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:22:21,211 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c [2018-09-19 04:22:21,236 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38a790192/73914d0403914997b451792e2c3fed4c/FLAG62a23c572 [2018-09-19 04:22:21,260 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38a790192/73914d0403914997b451792e2c3fed4c [2018-09-19 04:22:21,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:22:21,278 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:22:21,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:22:21,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:22:21,291 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:22:21,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:22:21" (1/1) ... [2018-09-19 04:22:21,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1119bd7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:21, skipping insertion in model container [2018-09-19 04:22:21,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:22:21" (1/1) ... [2018-09-19 04:22:21,312 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:22:22,154 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:22:22,173 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:22:22,443 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:22:22,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22 WrapperNode [2018-09-19 04:22:22,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:22:22,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:22:22,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:22:22,569 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:22:22,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22" (1/1) ... [2018-09-19 04:22:22,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22" (1/1) ... [2018-09-19 04:22:22,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:22:22,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:22:22,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:22:22,774 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:22:23,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22" (1/1) ... [2018-09-19 04:22:23,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22" (1/1) ... [2018-09-19 04:22:23,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22" (1/1) ... [2018-09-19 04:22:23,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22" (1/1) ... [2018-09-19 04:22:23,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22" (1/1) ... [2018-09-19 04:22:23,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22" (1/1) ... [2018-09-19 04:22:23,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22" (1/1) ... [2018-09-19 04:22:23,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:22:23,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:22:23,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:22:23,341 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:22:23,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22" (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 04:22:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:22:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:22:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:22:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:22:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:22:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:22:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:22:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:22:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:22:23,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:22:30,427 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:22:30,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:22:30 BoogieIcfgContainer [2018-09-19 04:22:30,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:22:30,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:22:30,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:22:30,433 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:22:30,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:22:21" (1/3) ... [2018-09-19 04:22:30,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac3fc18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:22:30, skipping insertion in model container [2018-09-19 04:22:30,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:22:22" (2/3) ... [2018-09-19 04:22:30,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac3fc18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:22:30, skipping insertion in model container [2018-09-19 04:22:30,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:22:30" (3/3) ... [2018-09-19 04:22:30,438 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label09_true-unreach-call.c [2018-09-19 04:22:30,449 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:22:30,459 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:22:30,517 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:22:30,518 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:22:30,518 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:22:30,518 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:22:30,519 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:22:30,519 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:22:30,519 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:22:30,519 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:22:30,519 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:22:30,553 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-19 04:22:30,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-19 04:22:30,564 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:22:30,567 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] [2018-09-19 04:22:30,568 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:22:30,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1905211356, now seen corresponding path program 1 times [2018-09-19 04:22:30,576 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:22:30,577 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 55 with the following transitions: [2018-09-19 04:22:30,580 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [511], [513], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-19 04:22:30,646 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:22:30,646 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:22:32,433 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:22:32,435 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:22:32,455 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:22:33,230 INFO L232 lantSequenceWeakener]: Weakened 52 states. On average, predicates are now at 80.56% of their original sizes. [2018-09-19 04:22:33,230 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:22:33,587 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:22:33,589 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:22:33,590 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:22:33,590 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:22:33,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:22:33,605 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:22:33,605 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:22:33,608 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-19 04:22:44,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:22:44,369 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-19 04:22:44,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:22:44,372 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2018-09-19 04:22:44,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:22:44,397 INFO L225 Difference]: With dead ends: 1158 [2018-09-19 04:22:44,398 INFO L226 Difference]: Without dead ends: 746 [2018-09-19 04:22:44,407 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:22:44,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-19 04:22:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-19 04:22:44,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-19 04:22:44,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-19 04:22:44,511 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 54 [2018-09-19 04:22:44,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:22:44,512 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-19 04:22:44,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:22:44,512 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-19 04:22:44,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-19 04:22:44,519 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:22:44,520 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:44,520 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:22:44,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1863704390, now seen corresponding path program 1 times [2018-09-19 04:22:44,520 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:22:44,521 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-09-19 04:22:44,521 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [511], [513], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:22:44,529 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:22:44,529 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:22:46,590 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:22:50,515 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:22:50,516 INFO L272 AbstractInterpreter]: Visited 99 different actions 284 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:22:50,523 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:22:51,599 INFO L232 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 78.52% of their original sizes. [2018-09-19 04:22:51,599 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:22:52,663 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:22:52,663 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:22:52,663 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:22:52,663 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:22:52,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:22:52,666 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:22:52,667 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:22:52,667 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-19 04:23:11,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:23:11,626 INFO L93 Difference]: Finished difference Result 1772 states and 3024 transitions. [2018-09-19 04:23:11,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:23:11,627 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2018-09-19 04:23:11,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:23:11,643 INFO L225 Difference]: With dead ends: 1772 [2018-09-19 04:23:11,644 INFO L226 Difference]: Without dead ends: 1372 [2018-09-19 04:23:11,649 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:23:11,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2018-09-19 04:23:11,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1094. [2018-09-19 04:23:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1094 states. [2018-09-19 04:23:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1441 transitions. [2018-09-19 04:23:11,724 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1441 transitions. Word has length 146 [2018-09-19 04:23:11,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:23:11,725 INFO L480 AbstractCegarLoop]: Abstraction has 1094 states and 1441 transitions. [2018-09-19 04:23:11,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:23:11,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1441 transitions. [2018-09-19 04:23:11,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-09-19 04:23:11,738 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:23:11,739 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:11,739 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:23:11,739 INFO L82 PathProgramCache]: Analyzing trace with hash 336527934, now seen corresponding path program 1 times [2018-09-19 04:23:11,739 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:23:11,740 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 183 with the following transitions: [2018-09-19 04:23:11,740 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [511], [513], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:23:11,753 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:23:11,753 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:23:15,052 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:23:21,366 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:23:21,367 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:23:21,401 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:23:22,902 INFO L232 lantSequenceWeakener]: Weakened 180 states. On average, predicates are now at 78.27% of their original sizes. [2018-09-19 04:23:22,902 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:23:23,345 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:23:23,346 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:23:23,346 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:23:23,346 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:23:23,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:23:23,347 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:23:23,347 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:23:23,348 INFO L87 Difference]: Start difference. First operand 1094 states and 1441 transitions. Second operand 11 states. [2018-09-19 04:23:39,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:23:39,202 INFO L93 Difference]: Finished difference Result 2749 states and 4050 transitions. [2018-09-19 04:23:39,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:23:39,205 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 182 [2018-09-19 04:23:39,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:23:39,215 INFO L225 Difference]: With dead ends: 2749 [2018-09-19 04:23:39,215 INFO L226 Difference]: Without dead ends: 1999 [2018-09-19 04:23:39,218 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 172 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 04:23:39,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2018-09-19 04:23:39,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1450. [2018-09-19 04:23:39,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-09-19 04:23:39,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 1815 transitions. [2018-09-19 04:23:39,271 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 1815 transitions. Word has length 182 [2018-09-19 04:23:39,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:23:39,271 INFO L480 AbstractCegarLoop]: Abstraction has 1450 states and 1815 transitions. [2018-09-19 04:23:39,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:23:39,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 1815 transitions. [2018-09-19 04:23:39,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-09-19 04:23:39,278 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:23:39,278 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:39,278 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:23:39,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1716552798, now seen corresponding path program 1 times [2018-09-19 04:23:39,279 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:23:39,279 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 295 with the following transitions: [2018-09-19 04:23:39,280 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [511], [513], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:23:39,288 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:23:39,289 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:23:49,886 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:23:49,886 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:23:49,893 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:23:51,573 INFO L232 lantSequenceWeakener]: Weakened 292 states. On average, predicates are now at 77.89% of their original sizes. [2018-09-19 04:23:51,574 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:23:52,033 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:23:52,034 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:23:52,034 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:23:52,034 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:23:52,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:23:52,035 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:23:52,035 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:23:52,036 INFO L87 Difference]: Start difference. First operand 1450 states and 1815 transitions. Second operand 13 states. [2018-09-19 04:24:00,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:24:00,667 INFO L93 Difference]: Finished difference Result 2897 states and 3954 transitions. [2018-09-19 04:24:00,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 04:24:00,668 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 294 [2018-09-19 04:24:00,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:24:00,678 INFO L225 Difference]: With dead ends: 2897 [2018-09-19 04:24:00,679 INFO L226 Difference]: Without dead ends: 1793 [2018-09-19 04:24:00,683 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 304 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:24:00,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2018-09-19 04:24:00,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1790. [2018-09-19 04:24:00,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2018-09-19 04:24:00,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2172 transitions. [2018-09-19 04:24:00,740 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2172 transitions. Word has length 294 [2018-09-19 04:24:00,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:24:00,741 INFO L480 AbstractCegarLoop]: Abstraction has 1790 states and 2172 transitions. [2018-09-19 04:24:00,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:24:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2172 transitions. [2018-09-19 04:24:00,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-09-19 04:24:00,747 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:24:00,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:00,747 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:24:00,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1572006194, now seen corresponding path program 1 times [2018-09-19 04:24:00,748 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:24:00,748 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 303 with the following transitions: [2018-09-19 04:24:00,749 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [511], [513], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:24:00,756 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:24:00,756 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:24:18,725 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:24:18,725 INFO L272 AbstractInterpreter]: Visited 255 different actions 752 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 04:24:18,734 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:24:20,500 INFO L232 lantSequenceWeakener]: Weakened 300 states. On average, predicates are now at 77.87% of their original sizes. [2018-09-19 04:24:20,500 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:24:21,001 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:24:21,001 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:24:21,002 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:24:21,002 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:24:21,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:24:21,003 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:24:21,003 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:24:21,003 INFO L87 Difference]: Start difference. First operand 1790 states and 2172 transitions. Second operand 14 states. [2018-09-19 04:24:38,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:24:38,137 INFO L93 Difference]: Finished difference Result 3242 states and 4318 transitions. [2018-09-19 04:24:38,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 04:24:38,149 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 302 [2018-09-19 04:24:38,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:24:38,159 INFO L225 Difference]: With dead ends: 3242 [2018-09-19 04:24:38,159 INFO L226 Difference]: Without dead ends: 2138 [2018-09-19 04:24:38,163 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 314 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:24:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2018-09-19 04:24:38,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2132. [2018-09-19 04:24:38,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2132 states. [2018-09-19 04:24:38,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2533 transitions. [2018-09-19 04:24:38,242 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2533 transitions. Word has length 302 [2018-09-19 04:24:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:24:38,243 INFO L480 AbstractCegarLoop]: Abstraction has 2132 states and 2533 transitions. [2018-09-19 04:24:38,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:24:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2533 transitions. [2018-09-19 04:24:38,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2018-09-19 04:24:38,253 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:24:38,253 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:24:38,254 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:24:38,254 INFO L82 PathProgramCache]: Analyzing trace with hash 609476480, now seen corresponding path program 1 times [2018-09-19 04:24:38,254 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:24:38,255 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 387 with the following transitions: [2018-09-19 04:24:38,255 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [511], [513], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:24:38,263 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:24:38,263 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:24:39,829 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:25:00,401 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:25:00,402 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:25:00,408 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:25:02,923 INFO L232 lantSequenceWeakener]: Weakened 384 states. On average, predicates are now at 77.77% of their original sizes. [2018-09-19 04:25:02,923 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:25:03,246 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:25:03,247 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:25:03,247 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:25:03,247 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:25:03,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:25:03,248 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:25:03,248 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:25:03,249 INFO L87 Difference]: Start difference. First operand 2132 states and 2533 transitions. Second operand 11 states. [2018-09-19 04:25:16,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:25:16,221 INFO L93 Difference]: Finished difference Result 4495 states and 5901 transitions. [2018-09-19 04:25:16,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 04:25:16,222 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 386 [2018-09-19 04:25:16,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:25:16,235 INFO L225 Difference]: With dead ends: 4495 [2018-09-19 04:25:16,236 INFO L226 Difference]: Without dead ends: 3049 [2018-09-19 04:25:16,241 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 396 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-09-19 04:25:16,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2018-09-19 04:25:16,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 2489. [2018-09-19 04:25:16,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2018-09-19 04:25:16,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2917 transitions. [2018-09-19 04:25:16,318 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2917 transitions. Word has length 386 [2018-09-19 04:25:16,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:25:16,319 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 2917 transitions. [2018-09-19 04:25:16,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:25:16,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2917 transitions. [2018-09-19 04:25:16,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-09-19 04:25:16,328 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:25:16,329 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:25:16,329 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:25:16,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1095134149, now seen corresponding path program 1 times [2018-09-19 04:25:16,329 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:25:16,330 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 404 with the following transitions: [2018-09-19 04:25:16,330 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [511], [513], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:25:16,335 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:25:16,336 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:25:23,119 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:25:38,736 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:25:38,737 INFO L272 AbstractInterpreter]: Visited 256 different actions 1013 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:25:38,743 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:25:41,210 INFO L232 lantSequenceWeakener]: Weakened 401 states. On average, predicates are now at 77.74% of their original sizes. [2018-09-19 04:25:41,210 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:25:41,659 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:25:41,659 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:25:41,660 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:25:41,660 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:25:41,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:25:41,661 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:25:41,661 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:25:41,661 INFO L87 Difference]: Start difference. First operand 2489 states and 2917 transitions. Second operand 13 states. [2018-09-19 04:25:57,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:25:57,288 INFO L93 Difference]: Finished difference Result 4647 states and 5816 transitions. [2018-09-19 04:25:57,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:25:57,290 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 403 [2018-09-19 04:25:57,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:25:57,300 INFO L225 Difference]: With dead ends: 4647 [2018-09-19 04:25:57,301 INFO L226 Difference]: Without dead ends: 2844 [2018-09-19 04:25:57,306 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 413 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2018-09-19 04:25:57,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2018-09-19 04:25:57,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2833. [2018-09-19 04:25:57,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2833 states. [2018-09-19 04:25:57,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 3297 transitions. [2018-09-19 04:25:57,381 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 3297 transitions. Word has length 403 [2018-09-19 04:25:57,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:25:57,382 INFO L480 AbstractCegarLoop]: Abstraction has 2833 states and 3297 transitions. [2018-09-19 04:25:57,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:25:57,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 3297 transitions. [2018-09-19 04:25:57,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2018-09-19 04:25:57,389 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:25:57,389 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:25:57,390 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:25:57,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1657991800, now seen corresponding path program 1 times [2018-09-19 04:25:57,390 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:25:57,391 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 423 with the following transitions: [2018-09-19 04:25:57,391 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [511], [513], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-19 04:25:57,397 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:25:57,397 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:26:00,011 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:26:19,701 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:26:19,702 INFO L272 AbstractInterpreter]: Visited 248 different actions 983 times. Merged at 7 different actions 24 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 04:26:19,711 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:26:21,753 INFO L232 lantSequenceWeakener]: Weakened 420 states. On average, predicates are now at 77.72% of their original sizes. [2018-09-19 04:26:21,754 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:26:22,063 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:26:22,064 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:26:22,064 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:26:22,064 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:26:22,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:26:22,065 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:26:22,065 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:26:22,065 INFO L87 Difference]: Start difference. First operand 2833 states and 3297 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 04:26:31,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 04:26:31,396 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:26:31,403 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:26:31,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:26:31 BoogieIcfgContainer [2018-09-19 04:26:31,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:26:31,405 INFO L168 Benchmark]: Toolchain (without parser) took 250129.91 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -216.9 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-19 04:26:31,408 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 04:26:31,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1288.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-09-19 04:26:31,409 INFO L168 Benchmark]: Boogie Procedure Inliner took 204.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-19 04:26:31,410 INFO L168 Benchmark]: Boogie Preprocessor took 565.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 815.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -962.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2018-09-19 04:26:31,411 INFO L168 Benchmark]: RCFGBuilder took 7087.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 277.0 MB). Peak memory consumption was 277.0 MB. Max. memory is 7.1 GB. [2018-09-19 04:26:31,412 INFO L168 Benchmark]: TraceAbstraction took 240974.65 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 341.5 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-19 04:26:31,418 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1288.67 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 204.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 565.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 815.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -962.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7087.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 277.0 MB). Peak memory consumption was 277.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 240974.65 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.6 GB in the end (delta: 341.5 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 148). Cancelled while BasicCegarLoop was constructing difference of abstraction (2833states) and FLOYD_HOARE automaton (currently 20 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (3574 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 240.8s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 109.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2966 SDtfs, 16229 SDslu, 2758 SDs, 0 SdLazy, 32125 SolverSat, 3634 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 97.0s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2256 GetRequests, 2107 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2833occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 113.0s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9963734135808175 AbsIntWeakeningRatio, 0.07886290692342962 AbsIntAvgWeakeningVarsNumRemoved, 921.0894085281981 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 1409 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label09_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-26-31-436.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label09_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-26-31-436.csv Completed graceful shutdown