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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/eureka_01_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:03:29,499 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:03:29,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:03:29,519 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:03:29,519 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:03:29,520 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:03:29,522 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:03:29,523 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:03:29,525 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:03:29,526 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:03:29,527 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:03:29,528 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:03:29,529 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:03:29,530 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:03:29,531 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:03:29,532 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:03:29,533 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:03:29,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:03:29,537 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:03:29,539 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:03:29,543 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:03:29,545 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:03:29,550 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 21:03:29,551 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 21:03:29,551 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 21:03:29,555 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 21:03:29,558 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 21:03:29,559 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 21:03:29,561 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 21:03:29,562 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 21:03:29,564 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 21:03:29,565 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 21:03:29,565 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 21:03:29,565 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 21:03:29,567 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 21:03:29,569 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 21:03:29,570 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 21:03:29,601 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:03:29,602 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:03:29,603 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:03:29,603 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:03:29,604 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:03:29,604 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:03:29,604 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:03:29,605 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:03:29,605 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:03:29,605 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:03:29,605 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:03:29,606 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:03:29,607 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:03:29,607 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:03:29,607 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:03:29,607 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:03:29,609 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:03:29,609 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:03:29,610 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:03:29,610 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:03:29,610 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:03:29,610 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:03:29,611 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:03:29,611 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:29,611 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:03:29,611 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:03:29,612 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:03:29,612 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:03:29,612 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:03:29,613 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:03:29,613 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:03:29,613 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:03:29,613 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:03:29,686 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:03:29,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:03:29,710 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:03:29,712 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:03:29,712 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:03:29,713 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/eureka_01_true-unreach-call.i [2018-09-15 21:03:30,091 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d5be375/22db8a2f65d049de935569f5dac86a72/FLAG0af55d179 [2018-09-15 21:03:30,257 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:03:30,258 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/eureka_01_true-unreach-call.i [2018-09-15 21:03:30,266 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d5be375/22db8a2f65d049de935569f5dac86a72/FLAG0af55d179 [2018-09-15 21:03:30,282 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d5be375/22db8a2f65d049de935569f5dac86a72 [2018-09-15 21:03:30,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:03:30,298 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:03:30,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:30,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:03:30,306 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:03:30,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc87f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30, skipping insertion in model container [2018-09-15 21:03:30,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,322 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:03:30,531 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:30,551 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:03:30,573 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:30,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30 WrapperNode [2018-09-15 21:03:30,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:30,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:30,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:03:30,602 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:03:30,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:30,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:03:30,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:03:30,631 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:03:30,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... [2018-09-15 21:03:30,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:03:30,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:03:30,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:03:30,677 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:03:30,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:03:30,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:03:30,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:03:30,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:03:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:03:30,821 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:03:30,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 21:03:30,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 21:03:31,393 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:03:31,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:31 BoogieIcfgContainer [2018-09-15 21:03:31,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:03:31,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:03:31,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:03:31,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:03:31,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:03:30" (1/3) ... [2018-09-15 21:03:31,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc595e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:31, skipping insertion in model container [2018-09-15 21:03:31,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:30" (2/3) ... [2018-09-15 21:03:31,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc595e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:31, skipping insertion in model container [2018-09-15 21:03:31,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:31" (3/3) ... [2018-09-15 21:03:31,411 INFO L112 eAbstractionObserver]: Analyzing ICFG eureka_01_true-unreach-call.i [2018-09-15 21:03:31,421 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:03:31,429 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:03:31,471 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:03:31,471 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:03:31,472 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:03:31,472 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:03:31,472 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:03:31,472 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:03:31,472 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:03:31,473 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:03:31,473 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:03:31,492 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-09-15 21:03:31,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-15 21:03:31,500 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:31,502 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:31,503 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:31,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1095333928, now seen corresponding path program 1 times [2018-09-15 21:03:31,511 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:31,512 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-09-15 21:03:31,515 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [23], [25], [56], [58], [75], [77], [81], [86], [95], [98], [100], [106], [107], [108], [110] [2018-09-15 21:03:31,555 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:31,556 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:31,636 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:31,638 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-15 21:03:31,662 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:31,710 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96.67% of their original sizes. [2018-09-15 21:03:31,710 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:31,734 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:31,738 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:31,738 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:03:31,738 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:31,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:03:31,748 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:03:31,748 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:31,750 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 3 states. [2018-09-15 21:03:31,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:31,829 INFO L93 Difference]: Finished difference Result 68 states and 92 transitions. [2018-09-15 21:03:31,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:03:31,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-09-15 21:03:31,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:31,837 INFO L225 Difference]: With dead ends: 68 [2018-09-15 21:03:31,838 INFO L226 Difference]: Without dead ends: 34 [2018-09-15 21:03:31,840 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:31,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-09-15 21:03:31,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-09-15 21:03:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-09-15 21:03:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2018-09-15 21:03:31,879 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 18 [2018-09-15 21:03:31,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:31,879 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2018-09-15 21:03:31,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:03:31,879 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2018-09-15 21:03:31,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-15 21:03:31,880 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:31,881 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] [2018-09-15 21:03:31,881 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:31,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1016412537, now seen corresponding path program 1 times [2018-09-15 21:03:31,882 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:31,883 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2018-09-15 21:03:31,883 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [25], [29], [32], [58], [62], [65], [77], [81], [86], [95], [98], [100], [106], [107], [108], [110] [2018-09-15 21:03:31,890 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:31,890 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:31,907 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:31,908 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 13 variables. [2018-09-15 21:03:31,923 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:31,942 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 83.33% of their original sizes. [2018-09-15 21:03:31,943 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:31,971 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:31,972 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:31,972 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:03:31,972 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:31,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:03:31,973 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:03:31,973 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:31,974 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 3 states. [2018-09-15 21:03:32,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:32,063 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2018-09-15 21:03:32,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:03:32,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-09-15 21:03:32,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:32,065 INFO L225 Difference]: With dead ends: 62 [2018-09-15 21:03:32,065 INFO L226 Difference]: Without dead ends: 38 [2018-09-15 21:03:32,066 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:32,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-09-15 21:03:32,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-09-15 21:03:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-09-15 21:03:32,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-09-15 21:03:32,074 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 21 [2018-09-15 21:03:32,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:32,075 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-09-15 21:03:32,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:03:32,075 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-09-15 21:03:32,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-15 21:03:32,076 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:32,077 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:32,077 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:32,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1891642786, now seen corresponding path program 1 times [2018-09-15 21:03:32,077 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:32,078 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 26 with the following transitions: [2018-09-15 21:03:32,078 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [17], [21], [25], [29], [32], [58], [62], [65], [77], [81], [86], [95], [98], [100], [106], [107], [108], [110] [2018-09-15 21:03:32,081 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:32,081 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:32,099 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:32,100 INFO L272 AbstractInterpreter]: Visited 11 different actions 15 times. Merged at 3 different actions 3 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 14 variables. [2018-09-15 21:03:32,115 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:32,147 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 65% of their original sizes. [2018-09-15 21:03:32,148 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:32,204 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:32,205 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:32,205 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-15 21:03:32,205 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:32,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-15 21:03:32,206 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-15 21:03:32,206 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-15 21:03:32,206 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 5 states. [2018-09-15 21:03:32,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:32,600 INFO L93 Difference]: Finished difference Result 70 states and 85 transitions. [2018-09-15 21:03:32,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-15 21:03:32,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-09-15 21:03:32,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:32,602 INFO L225 Difference]: With dead ends: 70 [2018-09-15 21:03:32,602 INFO L226 Difference]: Without dead ends: 42 [2018-09-15 21:03:32,603 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-09-15 21:03:32,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-09-15 21:03:32,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2018-09-15 21:03:32,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-09-15 21:03:32,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2018-09-15 21:03:32,616 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 25 [2018-09-15 21:03:32,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:32,616 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2018-09-15 21:03:32,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-15 21:03:32,616 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2018-09-15 21:03:32,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-15 21:03:32,617 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:32,617 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:32,618 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:32,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1329539401, now seen corresponding path program 1 times [2018-09-15 21:03:32,619 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:32,619 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-09-15 21:03:32,619 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [17], [19], [21], [25], [29], [32], [58], [62], [65], [77], [81], [86], [95], [98], [100], [106], [107], [108], [110] [2018-09-15 21:03:32,623 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:32,623 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:32,683 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:32,683 INFO L272 AbstractInterpreter]: Visited 15 different actions 45 times. Merged at 4 different actions 20 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 2 different actions. Largest state had 14 variables. [2018-09-15 21:03:32,722 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:32,772 INFO L232 lantSequenceWeakener]: Weakened 14 states. On average, predicates are now at 34.52% of their original sizes. [2018-09-15 21:03:32,773 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:32,979 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:32,979 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:32,979 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-15 21:03:32,979 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:32,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-15 21:03:32,980 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-15 21:03:32,981 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-09-15 21:03:32,981 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 9 states. [2018-09-15 21:03:33,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:33,443 INFO L93 Difference]: Finished difference Result 95 states and 115 transitions. [2018-09-15 21:03:33,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-15 21:03:33,443 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-09-15 21:03:33,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:33,446 INFO L225 Difference]: With dead ends: 95 [2018-09-15 21:03:33,447 INFO L226 Difference]: Without dead ends: 71 [2018-09-15 21:03:33,448 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=107, Unknown=0, NotChecked=0, Total=182 [2018-09-15 21:03:33,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-09-15 21:03:33,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 59. [2018-09-15 21:03:33,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-15 21:03:33,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2018-09-15 21:03:33,463 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 29 [2018-09-15 21:03:33,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:33,463 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2018-09-15 21:03:33,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-15 21:03:33,464 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2018-09-15 21:03:33,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-15 21:03:33,465 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:33,466 INFO L376 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2018-09-15 21:03:33,466 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:33,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1509436642, now seen corresponding path program 1 times [2018-09-15 21:03:33,466 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:33,467 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 52 with the following transitions: [2018-09-15 21:03:33,467 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [17], [19], [21], [25], [29], [32], [34], [38], [41], [54], [58], [62], [65], [67], [71], [73], [77], [81], [86], [95], [98], [100], [106], [107], [108], [110] [2018-09-15 21:03:33,469 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:33,469 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:33,497 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:33,497 INFO L272 AbstractInterpreter]: Visited 18 different actions 48 times. Merged at 4 different actions 20 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 2 different actions. Largest state had 16 variables. [2018-09-15 21:03:33,507 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:33,565 INFO L232 lantSequenceWeakener]: Weakened 22 states. On average, predicates are now at 38.85% of their original sizes. [2018-09-15 21:03:33,569 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:34,115 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:34,116 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:34,116 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 21:03:34,116 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:34,117 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 21:03:34,117 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 21:03:34,117 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-09-15 21:03:34,118 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand 10 states. [2018-09-15 21:03:34,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:34,682 INFO L93 Difference]: Finished difference Result 107 states and 122 transitions. [2018-09-15 21:03:34,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-15 21:03:34,683 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2018-09-15 21:03:34,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:34,684 INFO L225 Difference]: With dead ends: 107 [2018-09-15 21:03:34,684 INFO L226 Difference]: Without dead ends: 71 [2018-09-15 21:03:34,685 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2018-09-15 21:03:34,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-09-15 21:03:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 61. [2018-09-15 21:03:34,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-15 21:03:34,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2018-09-15 21:03:34,695 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 51 [2018-09-15 21:03:34,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:34,696 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2018-09-15 21:03:34,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 21:03:34,696 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2018-09-15 21:03:34,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-15 21:03:34,698 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:34,698 INFO L376 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 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] [2018-09-15 21:03:34,698 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:34,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1273888233, now seen corresponding path program 1 times [2018-09-15 21:03:34,699 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:34,699 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 56 with the following transitions: [2018-09-15 21:03:34,699 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [17], [19], [21], [25], [29], [32], [34], [38], [41], [43], [48], [50], [54], [58], [62], [65], [67], [71], [73], [77], [81], [86], [95], [98], [100], [106], [107], [108], [110] [2018-09-15 21:03:34,702 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:34,702 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:34,780 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 21:03:34,780 INFO L272 AbstractInterpreter]: Visited 35 different actions 206 times. Merged at 16 different actions 132 times. Widened at 4 different actions 19 times. Found 11 fixpoints after 5 different actions. Largest state had 17 variables. [2018-09-15 21:03:34,786 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 21:03:34,810 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 21:03:34,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:03:34 BoogieIcfgContainer [2018-09-15 21:03:34,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 21:03:34,811 INFO L168 Benchmark]: Toolchain (without parser) took 4516.06 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -633.3 MB). Peak memory consumption was 114.9 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:34,814 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-09-15 21:03:34,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:34,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.91 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. [2018-09-15 21:03:34,816 INFO L168 Benchmark]: Boogie Preprocessor took 45.80 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. [2018-09-15 21:03:34,816 INFO L168 Benchmark]: RCFGBuilder took 717.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -781.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:34,817 INFO L168 Benchmark]: TraceAbstraction took 3411.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 123.7 MB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:34,822 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 302.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 27.91 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. * Boogie Preprocessor took 45.80 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. * RCFGBuilder took 717.91 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -781.0 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3411.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 123.7 MB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L9] int INFINITY = 899; [L12] int nodecount = 5; [L13] int edgecount = 20; [L14] int source = 0; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L15] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L16] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L17] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L18] int distance[5]; [L19] int x,y; [L20] int i,j; [L22] i = 0 [L22] COND TRUE i < nodecount [L23] COND TRUE i == source [L24] distance[i] = 0 [L22] i++ [L22] i++ [L22] COND TRUE i < nodecount [L23] COND FALSE !(i == source) [L27] distance[i] = INFINITY [L22] i++ [L22] i++ [L22] COND FALSE !(i < nodecount) [L31] i = 0 [L31] COND TRUE i < nodecount [L33] j = 0 [L33] COND TRUE j < edgecount [L35] x = Dest[j] [L36] y = Source[j] [L37] COND FALSE !(distance[x] > distance[y] + Weight[j]) [L33] j++ [L33] j++ [L33] COND FALSE !(j < edgecount) [L31] i++ [L31] i++ [L31] COND TRUE i < nodecount [L33] j = 0 [L33] COND FALSE !(j < edgecount) [L31] i++ [L31] i++ [L31] COND FALSE !(i < nodecount) [L43] i = 0 [L43] COND TRUE i < edgecount [L45] x = Dest[i] [L46] y = Source[i] [L47] COND FALSE !(distance[x] > distance[y] + Weight[i]) [L43] i++ [L43] i++ [L43] COND TRUE i < edgecount [L45] x = Dest[i] [L46] y = Source[i] [L47] COND FALSE !(distance[x] > distance[y] + Weight[i]) [L43] i++ [L43] i++ [L43] COND TRUE i < edgecount [L45] x = Dest[i] [L46] y = Source[i] [L47] COND FALSE !(distance[x] > distance[y] + Weight[i]) [L43] i++ [L43] i++ [L43] COND FALSE !(i < edgecount) [L53] i = 0 [L53] COND TRUE i < nodecount [L55] CALL __VERIFIER_assert(distance[i]>=0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 1 error locations. UNKNOWN Result, 3.3s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 155 SDtfs, 394 SDslu, 176 SDs, 0 SdLazy, 220 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 151 GetRequests, 117 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 6 AbstIntIterations, 5 AbstIntStrong, 0.845323741007194 AbsIntWeakeningRatio, 0.6330935251798561 AbsIntAvgWeakeningVarsNumRemoved, 0.6402877697841727 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 25 StatesRemovedByMinimization, 4 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: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/eureka_01_true-unreach-call.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_21-03-34-836.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/eureka_01_true-unreach-call.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_21-03-34-836.csv Received shutdown request...