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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 19:27:38,564 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 19:27:38,567 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 19:27:38,585 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 19:27:38,585 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 19:27:38,586 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 19:27:38,587 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 19:27:38,590 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 19:27:38,592 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 19:27:38,593 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 19:27:38,594 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 19:27:38,594 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 19:27:38,595 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 19:27:38,596 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 19:27:38,597 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 19:27:38,598 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 19:27:38,598 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 19:27:38,600 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 19:27:38,603 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 19:27:38,604 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 19:27:38,605 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 19:27:38,607 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 19:27:38,609 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 19:27:38,621 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 19:27:38,621 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 19:27:38,622 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 19:27:38,625 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 19:27:38,625 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-15 19:27:38,661 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 19:27:38,661 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 19:27:38,662 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 19:27:38,662 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 19:27:38,663 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 19:27:38,663 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 19:27:38,663 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 19:27:38,663 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 19:27:38,663 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 19:27:38,664 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 19:27:38,664 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 19:27:38,664 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 19:27:38,665 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 19:27:38,665 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 19:27:38,665 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 19:27:38,665 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 19:27:38,669 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 19:27:38,669 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 19:27:38,669 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 19:27:38,670 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 19:27:38,670 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 19:27:38,670 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 19:27:38,670 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 19:27:38,671 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 19:27:38,671 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 19:27:38,671 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 19:27:38,671 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 19:27:38,672 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 19:27:38,672 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 19:27:38,672 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 19:27:38,672 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 19:27:38,672 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 19:27:38,672 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 19:27:38,673 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 19:27:38,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 19:27:38,741 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 19:27:38,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 19:27:38,748 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 19:27:38,748 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 19:27:38,749 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c [2018-09-15 19:27:39,105 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50f4135bb/0a6591f76c4b4442b4c2eb8808f77142/FLAGb276197d2 [2018-09-15 19:27:39,396 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 19:27:39,397 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c [2018-09-15 19:27:39,417 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50f4135bb/0a6591f76c4b4442b4c2eb8808f77142/FLAGb276197d2 [2018-09-15 19:27:39,437 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50f4135bb/0a6591f76c4b4442b4c2eb8808f77142 [2018-09-15 19:27:39,447 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 19:27:39,450 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 19:27:39,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 19:27:39,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 19:27:39,459 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 19:27:39,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 07:27:39" (1/1) ... [2018-09-15 19:27:39,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a46a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:39, skipping insertion in model container [2018-09-15 19:27:39,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 07:27:39" (1/1) ... [2018-09-15 19:27:39,476 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 19:27:40,010 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 19:27:40,031 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 19:27:40,174 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 19:27:40,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40 WrapperNode [2018-09-15 19:27:40,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 19:27:40,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 19:27:40,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 19:27:40,228 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 19:27:40,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40" (1/1) ... [2018-09-15 19:27:40,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40" (1/1) ... [2018-09-15 19:27:40,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 19:27:40,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 19:27:40,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 19:27:40,353 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 19:27:40,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40" (1/1) ... [2018-09-15 19:27:40,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40" (1/1) ... [2018-09-15 19:27:40,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40" (1/1) ... [2018-09-15 19:27:40,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40" (1/1) ... [2018-09-15 19:27:40,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40" (1/1) ... [2018-09-15 19:27:40,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40" (1/1) ... [2018-09-15 19:27:40,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40" (1/1) ... [2018-09-15 19:27:40,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 19:27:40,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 19:27:40,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 19:27:40,649 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 19:27:40,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40" (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 19:27:40,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 19:27:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 19:27:40,728 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 19:27:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 19:27:40,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 19:27:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 19:27:40,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 19:27:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 19:27:44,431 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 19:27:44,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 07:27:44 BoogieIcfgContainer [2018-09-15 19:27:44,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 19:27:44,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 19:27:44,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 19:27:44,437 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 19:27:44,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 07:27:39" (1/3) ... [2018-09-15 19:27:44,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73aa817c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 07:27:44, skipping insertion in model container [2018-09-15 19:27:44,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:27:40" (2/3) ... [2018-09-15 19:27:44,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73aa817c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 07:27:44, skipping insertion in model container [2018-09-15 19:27:44,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 07:27:44" (3/3) ... [2018-09-15 19:27:44,441 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label56_true-unreach-call.c [2018-09-15 19:27:44,450 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 19:27:44,459 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 19:27:44,516 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 19:27:44,517 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 19:27:44,517 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 19:27:44,517 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 19:27:44,517 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 19:27:44,517 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 19:27:44,517 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 19:27:44,518 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 19:27:44,520 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 19:27:44,547 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-15 19:27:44,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-15 19:27:44,557 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:27:44,558 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] [2018-09-15 19:27:44,559 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:27:44,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1189398212, now seen corresponding path program 1 times [2018-09-15 19:27:44,567 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:27:44,568 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 31 with the following transitions: [2018-09-15 19:27:44,571 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-15 19:27:44,634 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:27:44,635 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:27:45,495 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:27:45,497 INFO L272 AbstractInterpreter]: Visited 29 different actions 29 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 19:27:45,509 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:27:45,904 INFO L232 lantSequenceWeakener]: Weakened 28 states. On average, predicates are now at 74.47% of their original sizes. [2018-09-15 19:27:45,904 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:27:46,217 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:27:46,219 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:27:46,219 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 19:27:46,219 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:27:46,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 19:27:46,232 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 19:27:46,233 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 19:27:46,236 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-15 19:27:51,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:27:51,880 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-15 19:27:51,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 19:27:51,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-09-15 19:27:51,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:27:51,899 INFO L225 Difference]: With dead ends: 576 [2018-09-15 19:27:51,900 INFO L226 Difference]: Without dead ends: 358 [2018-09-15 19:27:51,907 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 19:27:51,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-15 19:27:51,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-15 19:27:51,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-15 19:27:51,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-15 19:27:51,995 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 30 [2018-09-15 19:27:51,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:27:51,995 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-15 19:27:51,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 19:27:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-15 19:27:52,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-09-15 19:27:52,001 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:27:52,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 19:27:52,002 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:27:52,002 INFO L82 PathProgramCache]: Analyzing trace with hash 160243507, now seen corresponding path program 1 times [2018-09-15 19:27:52,002 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:27:52,003 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2018-09-15 19:27:52,003 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 19:27:52,011 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:27:52,011 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:27:53,388 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 19:27:56,213 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:27:56,213 INFO L272 AbstractInterpreter]: Visited 78 different actions 150 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 19:27:56,220 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:27:57,714 INFO L232 lantSequenceWeakener]: Weakened 99 states. On average, predicates are now at 73.36% of their original sizes. [2018-09-15 19:27:57,715 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:27:58,679 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:27:58,679 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:27:58,680 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 19:27:58,680 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:27:58,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 19:27:58,683 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 19:27:58,683 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 19:27:58,684 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-15 19:28:06,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:28:06,201 INFO L93 Difference]: Finished difference Result 711 states and 1126 transitions. [2018-09-15 19:28:06,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 19:28:06,201 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2018-09-15 19:28:06,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:28:06,208 INFO L225 Difference]: With dead ends: 711 [2018-09-15 19:28:06,208 INFO L226 Difference]: Without dead ends: 505 [2018-09-15 19:28:06,212 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-15 19:28:06,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-09-15 19:28:06,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 502. [2018-09-15 19:28:06,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2018-09-15 19:28:06,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 655 transitions. [2018-09-15 19:28:06,250 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 655 transitions. Word has length 101 [2018-09-15 19:28:06,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:28:06,251 INFO L480 AbstractCegarLoop]: Abstraction has 502 states and 655 transitions. [2018-09-15 19:28:06,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 19:28:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 655 transitions. [2018-09-15 19:28:06,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-09-15 19:28:06,257 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:28:06,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 19:28:06,258 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:28:06,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1268619912, now seen corresponding path program 1 times [2018-09-15 19:28:06,259 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:28:06,259 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 111 with the following transitions: [2018-09-15 19:28:06,259 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 19:28:06,267 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:28:06,267 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:28:10,525 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:28:10,525 INFO L272 AbstractInterpreter]: Visited 87 different actions 167 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 19:28:10,533 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:28:11,382 INFO L232 lantSequenceWeakener]: Weakened 108 states. On average, predicates are now at 73.3% of their original sizes. [2018-09-15 19:28:11,382 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:28:12,025 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:28:12,025 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:28:12,025 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 19:28:12,026 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:28:12,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 19:28:12,026 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 19:28:12,027 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 19:28:12,027 INFO L87 Difference]: Start difference. First operand 502 states and 655 transitions. Second operand 12 states. [2018-09-15 19:28:19,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:28:19,376 INFO L93 Difference]: Finished difference Result 1002 states and 1569 transitions. [2018-09-15 19:28:19,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 19:28:19,387 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 110 [2018-09-15 19:28:19,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:28:19,393 INFO L225 Difference]: With dead ends: 1002 [2018-09-15 19:28:19,393 INFO L226 Difference]: Without dead ends: 796 [2018-09-15 19:28:19,395 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 117 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 19:28:19,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-09-15 19:28:19,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 793. [2018-09-15 19:28:19,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2018-09-15 19:28:19,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 962 transitions. [2018-09-15 19:28:19,442 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 962 transitions. Word has length 110 [2018-09-15 19:28:19,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:28:19,442 INFO L480 AbstractCegarLoop]: Abstraction has 793 states and 962 transitions. [2018-09-15 19:28:19,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 19:28:19,443 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 962 transitions. [2018-09-15 19:28:19,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-15 19:28:19,449 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:28:19,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 19:28:19,450 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:28:19,450 INFO L82 PathProgramCache]: Analyzing trace with hash 862588912, now seen corresponding path program 1 times [2018-09-15 19:28:19,450 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:28:19,451 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-09-15 19:28:19,451 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 19:28:19,457 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:28:19,457 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:28:23,674 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 19:28:33,844 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:28:33,845 INFO L272 AbstractInterpreter]: Visited 123 different actions 356 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 19:28:33,851 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:28:35,354 INFO L232 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 73.16% of their original sizes. [2018-09-15 19:28:35,354 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:28:36,255 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:28:36,256 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:28:36,256 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 19:28:36,256 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:28:36,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 19:28:36,257 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 19:28:36,257 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-15 19:28:36,258 INFO L87 Difference]: Start difference. First operand 793 states and 962 transitions. Second operand 14 states. [2018-09-15 19:28:48,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:28:48,690 INFO L93 Difference]: Finished difference Result 1161 states and 1610 transitions. [2018-09-15 19:28:48,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-15 19:28:48,691 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 146 [2018-09-15 19:28:48,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:28:48,698 INFO L225 Difference]: With dead ends: 1161 [2018-09-15 19:28:48,698 INFO L226 Difference]: Without dead ends: 955 [2018-09-15 19:28:48,700 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 157 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2018-09-15 19:28:48,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2018-09-15 19:28:48,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 943. [2018-09-15 19:28:48,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 943 states. [2018-09-15 19:28:48,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1137 transitions. [2018-09-15 19:28:48,748 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1137 transitions. Word has length 146 [2018-09-15 19:28:48,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:28:48,748 INFO L480 AbstractCegarLoop]: Abstraction has 943 states and 1137 transitions. [2018-09-15 19:28:48,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-15 19:28:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1137 transitions. [2018-09-15 19:28:48,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-09-15 19:28:48,753 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:28:48,753 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 19:28:48,753 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:28:48,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1128815949, now seen corresponding path program 1 times [2018-09-15 19:28:48,754 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:28:48,754 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 166 with the following transitions: [2018-09-15 19:28:48,755 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 19:28:48,761 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:28:48,761 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:29:01,250 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:29:01,250 INFO L272 AbstractInterpreter]: Visited 142 different actions 278 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 19:29:01,256 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:29:02,826 INFO L232 lantSequenceWeakener]: Weakened 163 states. On average, predicates are now at 73.11% of their original sizes. [2018-09-15 19:29:02,827 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:29:04,188 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:29:04,188 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:29:04,189 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-15 19:29:04,189 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:29:04,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-15 19:29:04,189 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-15 19:29:04,190 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-09-15 19:29:04,190 INFO L87 Difference]: Start difference. First operand 943 states and 1137 transitions. Second operand 18 states. [2018-09-15 19:29:13,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:29:13,957 INFO L93 Difference]: Finished difference Result 1561 states and 2167 transitions. [2018-09-15 19:29:13,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-15 19:29:13,960 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 165 [2018-09-15 19:29:13,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:29:13,967 INFO L225 Difference]: With dead ends: 1561 [2018-09-15 19:29:13,967 INFO L226 Difference]: Without dead ends: 1207 [2018-09-15 19:29:13,970 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 181 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2018-09-15 19:29:13,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2018-09-15 19:29:14,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1205. [2018-09-15 19:29:14,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1205 states. [2018-09-15 19:29:14,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1418 transitions. [2018-09-15 19:29:14,022 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1418 transitions. Word has length 165 [2018-09-15 19:29:14,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:29:14,022 INFO L480 AbstractCegarLoop]: Abstraction has 1205 states and 1418 transitions. [2018-09-15 19:29:14,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-15 19:29:14,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1418 transitions. [2018-09-15 19:29:14,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-09-15 19:29:14,026 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:29:14,026 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 19:29:14,027 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:29:14,027 INFO L82 PathProgramCache]: Analyzing trace with hash 713847471, now seen corresponding path program 1 times [2018-09-15 19:29:14,027 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:29:14,027 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2018-09-15 19:29:14,028 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 19:29:14,031 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:29:14,031 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:29:15,431 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 19:29:21,753 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:29:21,753 INFO L272 AbstractInterpreter]: Visited 84 different actions 244 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 19:29:21,760 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:29:23,182 INFO L232 lantSequenceWeakener]: Weakened 175 states. On average, predicates are now at 73.15% of their original sizes. [2018-09-15 19:29:23,182 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:29:23,692 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:29:23,693 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:29:23,693 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 19:29:23,693 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:29:23,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 19:29:23,694 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 19:29:23,694 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 19:29:23,694 INFO L87 Difference]: Start difference. First operand 1205 states and 1418 transitions. Second operand 11 states. [2018-09-15 19:29:30,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:29:30,578 INFO L93 Difference]: Finished difference Result 1717 states and 2233 transitions. [2018-09-15 19:29:30,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-15 19:29:30,580 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 177 [2018-09-15 19:29:30,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:29:30,586 INFO L225 Difference]: With dead ends: 1717 [2018-09-15 19:29:30,586 INFO L226 Difference]: Without dead ends: 1363 [2018-09-15 19:29:30,588 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 186 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2018-09-15 19:29:30,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2018-09-15 19:29:30,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1353. [2018-09-15 19:29:30,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1353 states. [2018-09-15 19:29:30,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1584 transitions. [2018-09-15 19:29:30,648 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1584 transitions. Word has length 177 [2018-09-15 19:29:30,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:29:30,648 INFO L480 AbstractCegarLoop]: Abstraction has 1353 states and 1584 transitions. [2018-09-15 19:29:30,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 19:29:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1584 transitions. [2018-09-15 19:29:30,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-09-15 19:29:30,651 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:29:30,652 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 19:29:30,652 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:29:30,652 INFO L82 PathProgramCache]: Analyzing trace with hash -248051737, now seen corresponding path program 1 times [2018-09-15 19:29:30,652 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:29:30,653 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 182 with the following transitions: [2018-09-15 19:29:30,653 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 19:29:30,655 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:29:30,656 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:29:31,985 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 19:29:48,844 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:29:48,844 INFO L272 AbstractInterpreter]: Visited 88 different actions 511 times. Merged at 7 different actions 38 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 19:29:48,854 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:29:50,895 INFO L232 lantSequenceWeakener]: Weakened 179 states. On average, predicates are now at 73.14% of their original sizes. [2018-09-15 19:29:50,895 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:29:51,697 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:29:51,698 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:29:51,698 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 19:29:51,698 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:29:51,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 19:29:51,700 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 19:29:51,700 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-15 19:29:51,700 INFO L87 Difference]: Start difference. First operand 1353 states and 1584 transitions. Second operand 14 states. [2018-09-15 19:30:07,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:30:07,614 INFO L93 Difference]: Finished difference Result 2668 states and 3597 transitions. [2018-09-15 19:30:07,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-15 19:30:07,617 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 181 [2018-09-15 19:30:07,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:30:07,632 INFO L225 Difference]: With dead ends: 2668 [2018-09-15 19:30:07,632 INFO L226 Difference]: Without dead ends: 2166 [2018-09-15 19:30:07,635 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 193 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2018-09-15 19:30:07,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2018-09-15 19:30:07,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 2068. [2018-09-15 19:30:07,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2068 states. [2018-09-15 19:30:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2458 transitions. [2018-09-15 19:30:07,733 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2458 transitions. Word has length 181 [2018-09-15 19:30:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:30:07,734 INFO L480 AbstractCegarLoop]: Abstraction has 2068 states and 2458 transitions. [2018-09-15 19:30:07,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-15 19:30:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2458 transitions. [2018-09-15 19:30:07,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-09-15 19:30:07,741 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:30:07,742 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 19:30:07,742 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:30:07,742 INFO L82 PathProgramCache]: Analyzing trace with hash 171372784, now seen corresponding path program 1 times [2018-09-15 19:30:07,742 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:30:07,743 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 215 with the following transitions: [2018-09-15 19:30:07,743 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 19:30:07,747 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:30:07,747 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:30:08,987 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 19:30:27,394 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:30:27,394 INFO L272 AbstractInterpreter]: Visited 121 different actions 356 times. Merged at 7 different actions 15 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 19:30:27,404 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:30:29,980 INFO L232 lantSequenceWeakener]: Weakened 212 states. On average, predicates are now at 73.07% of their original sizes. [2018-09-15 19:30:29,981 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:30:31,612 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:30:31,613 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:30:31,613 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-15 19:30:31,613 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:30:31,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-15 19:30:31,614 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-15 19:30:31,614 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2018-09-15 19:30:31,614 INFO L87 Difference]: Start difference. First operand 2068 states and 2458 transitions. Second operand 19 states. [2018-09-15 19:30:47,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:30:47,919 INFO L93 Difference]: Finished difference Result 4578 states and 5789 transitions. [2018-09-15 19:30:47,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-15 19:30:47,920 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 214 [2018-09-15 19:30:47,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:30:47,935 INFO L225 Difference]: With dead ends: 4578 [2018-09-15 19:30:47,936 INFO L226 Difference]: Without dead ends: 3070 [2018-09-15 19:30:47,943 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 232 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2018-09-15 19:30:47,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3070 states. [2018-09-15 19:30:48,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3070 to 3004. [2018-09-15 19:30:48,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3004 states. [2018-09-15 19:30:48,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 3582 transitions. [2018-09-15 19:30:48,126 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 3582 transitions. Word has length 214 [2018-09-15 19:30:48,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:30:48,127 INFO L480 AbstractCegarLoop]: Abstraction has 3004 states and 3582 transitions. [2018-09-15 19:30:48,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-15 19:30:48,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 3582 transitions. [2018-09-15 19:30:48,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-09-15 19:30:48,132 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:30:48,133 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 19:30:48,133 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:30:48,134 INFO L82 PathProgramCache]: Analyzing trace with hash 584875939, now seen corresponding path program 1 times [2018-09-15 19:30:48,134 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:30:48,134 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 220 with the following transitions: [2018-09-15 19:30:48,134 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 19:30:48,137 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:30:48,138 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:30:52,321 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 19:31:19,061 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:31:19,061 INFO L272 AbstractInterpreter]: Visited 124 different actions 604 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 19:31:19,074 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 19:31:21,488 INFO L232 lantSequenceWeakener]: Weakened 217 states. On average, predicates are now at 73.07% of their original sizes. [2018-09-15 19:31:21,488 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:31:25,121 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 19:31:25,121 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 19:31:25,122 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-09-15 19:31:25,122 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 19:31:25,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-15 19:31:25,122 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-15 19:31:25,123 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2018-09-15 19:31:25,123 INFO L87 Difference]: Start difference. First operand 3004 states and 3582 transitions. Second operand 17 states. [2018-09-15 19:31:35,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 19:31:35,700 INFO L93 Difference]: Finished difference Result 5350 states and 6601 transitions. [2018-09-15 19:31:35,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-15 19:31:35,701 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 219 [2018-09-15 19:31:35,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 19:31:35,716 INFO L225 Difference]: With dead ends: 5350 [2018-09-15 19:31:35,717 INFO L226 Difference]: Without dead ends: 3197 [2018-09-15 19:31:35,725 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 232 GetRequests, 192 SyntacticMatches, 11 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=236, Invalid=694, Unknown=0, NotChecked=0, Total=930 [2018-09-15 19:31:35,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2018-09-15 19:31:35,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3156. [2018-09-15 19:31:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3156 states. [2018-09-15 19:31:35,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 3781 transitions. [2018-09-15 19:31:35,879 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 3781 transitions. Word has length 219 [2018-09-15 19:31:35,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 19:31:35,879 INFO L480 AbstractCegarLoop]: Abstraction has 3156 states and 3781 transitions. [2018-09-15 19:31:35,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-15 19:31:35,880 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 3781 transitions. [2018-09-15 19:31:35,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-09-15 19:31:35,885 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 19:31:35,885 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 19:31:35,886 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 19:31:35,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1098931384, now seen corresponding path program 1 times [2018-09-15 19:31:35,886 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 19:31:35,886 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-09-15 19:31:35,887 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-15 19:31:35,890 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 19:31:35,890 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 19:31:40,366 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 19:32:02,495 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 19:32:02,495 INFO L272 AbstractInterpreter]: Visited 124 different actions 605 times. Merged at 7 different actions 29 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 19:32:02,504 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-15 19:32:04,369 INFO L232 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 73.06% of their original sizes. [2018-09-15 19:32:04,369 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 19:32:04,385 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 19:32:04,389 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 19:32:04,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 07:32:04 BoogieIcfgContainer [2018-09-15 19:32:04,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 19:32:04,391 INFO L168 Benchmark]: Toolchain (without parser) took 264942.70 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-09-15 19:32:04,392 INFO L168 Benchmark]: CDTParser took 0.19 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 19:32:04,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.78 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-15 19:32:04,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.00 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 19:32:04,395 INFO L168 Benchmark]: Boogie Preprocessor took 295.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 774.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -876.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2018-09-15 19:32:04,396 INFO L168 Benchmark]: RCFGBuilder took 3783.70 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: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 7.1 GB. [2018-09-15 19:32:04,396 INFO L168 Benchmark]: TraceAbstraction took 259956.20 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -420.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-15 19:32:04,401 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 775.78 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 125.00 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 Preprocessor took 295.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 774.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -876.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3783.70 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: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 259956.20 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.6 GB in the end (delta: -420.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 73). Cancelled while BasicCegarLoop was analyzing trace of length 225 with TraceHistMax 3, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 259.8s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 92.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1801 SDtfs, 8956 SDslu, 2757 SDs, 0 SdLazy, 16845 SolverSat, 1935 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.9s Time, PredicateUnifierStatistics: 18 DeclaredPredicates, 1434 GetRequests, 1220 SyntacticMatches, 11 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1134 ImplicationChecksByTransitivity, 17.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3156occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 139.4s AbstIntTime, 10 AbstIntIterations, 10 AbstIntStrong, 0.9934050862990289 AbsIntWeakeningRatio, 0.1438664097623635 AbsIntAvgWeakeningVarsNumRemoved, 56.82466281310212 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 237 StatesRemovedByMinimization, 9 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/Problem10_label56_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_19-32-04-416.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label56_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_19-32-04-416.csv Completed graceful shutdown