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_label00_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 09:53:31,538 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 09:53:31,540 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 09:53:31,556 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 09:53:31,556 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 09:53:31,557 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 09:53:31,559 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 09:53:31,560 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 09:53:31,563 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 09:53:31,566 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 09:53:31,567 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 09:53:31,567 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 09:53:31,568 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 09:53:31,569 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 09:53:31,570 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 09:53:31,571 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 09:53:31,572 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 09:53:31,574 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 09:53:31,576 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 09:53:31,577 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 09:53:31,578 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 09:53:31,579 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 09:53:31,582 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 09:53:31,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 09:53:31,582 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 09:53:31,583 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 09:53:31,584 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 09:53:31,585 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 09:53:31,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 09:53:31,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 09:53:31,587 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 09:53:31,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 09:53:31,588 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 09:53:31,588 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 09:53:31,589 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 09:53:31,589 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 09:53:31,590 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 [2018-09-19 09:53:31,616 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 09:53:31,617 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 09:53:31,618 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 09:53:31,618 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 09:53:31,618 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 09:53:31,618 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 09:53:31,619 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 09:53:31,619 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 09:53:31,619 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 09:53:31,619 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 09:53:31,619 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 09:53:31,620 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 09:53:31,620 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 09:53:31,621 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 09:53:31,621 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 09:53:31,622 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 09:53:31,623 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 09:53:31,623 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 09:53:31,623 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 09:53:31,623 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 09:53:31,623 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 09:53:31,624 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 09:53:31,624 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 09:53:31,624 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 09:53:31,624 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 09:53:31,625 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 09:53:31,625 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 09:53:31,625 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 09:53:31,625 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 09:53:31,625 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 09:53:31,626 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 09:53:31,626 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 09:53:31,626 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 09:53:31,626 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 09:53:31,626 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 09:53:31,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 09:53:31,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 09:53:31,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 09:53:31,713 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 09:53:31,714 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 09:53:31,714 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label00_true-unreach-call.c [2018-09-19 09:53:32,119 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d0ccddfa/93a09120a739416592a30c09c80e918b/FLAG1183fcc76 [2018-09-19 09:53:32,378 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 09:53:32,381 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label00_true-unreach-call.c [2018-09-19 09:53:32,400 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d0ccddfa/93a09120a739416592a30c09c80e918b/FLAG1183fcc76 [2018-09-19 09:53:32,424 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d0ccddfa/93a09120a739416592a30c09c80e918b [2018-09-19 09:53:32,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 09:53:32,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 09:53:32,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 09:53:32,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 09:53:32,448 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 09:53:32,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:53:32" (1/1) ... [2018-09-19 09:53:32,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746fe49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:32, skipping insertion in model container [2018-09-19 09:53:32,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 09:53:32" (1/1) ... [2018-09-19 09:53:32,463 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 09:53:32,999 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 09:53:33,021 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 09:53:33,105 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 09:53:33,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33 WrapperNode [2018-09-19 09:53:33,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 09:53:33,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 09:53:33,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 09:53:33,157 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 09:53:33,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33" (1/1) ... [2018-09-19 09:53:33,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33" (1/1) ... [2018-09-19 09:53:33,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 09:53:33,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 09:53:33,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 09:53:33,282 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 09:53:33,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33" (1/1) ... [2018-09-19 09:53:33,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33" (1/1) ... [2018-09-19 09:53:33,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33" (1/1) ... [2018-09-19 09:53:33,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33" (1/1) ... [2018-09-19 09:53:33,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33" (1/1) ... [2018-09-19 09:53:33,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33" (1/1) ... [2018-09-19 09:53:33,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33" (1/1) ... [2018-09-19 09:53:33,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 09:53:33,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 09:53:33,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 09:53:33,508 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 09:53:33,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 09:53:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 09:53:33,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 09:53:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 09:53:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 09:53:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 09:53:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 09:53:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 09:53:33,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 09:53:36,935 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 09:53:36,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:53:36 BoogieIcfgContainer [2018-09-19 09:53:36,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 09:53:36,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 09:53:36,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 09:53:36,941 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 09:53:36,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 09:53:32" (1/3) ... [2018-09-19 09:53:36,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6bc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 09:53:36, skipping insertion in model container [2018-09-19 09:53:36,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 09:53:33" (2/3) ... [2018-09-19 09:53:36,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6bc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 09:53:36, skipping insertion in model container [2018-09-19 09:53:36,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 09:53:36" (3/3) ... [2018-09-19 09:53:36,946 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label00_true-unreach-call.c [2018-09-19 09:53:36,957 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 09:53:36,966 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 09:53:37,025 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 09:53:37,026 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 09:53:37,026 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 09:53:37,026 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 09:53:37,026 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 09:53:37,027 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 09:53:37,027 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 09:53:37,027 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 09:53:37,027 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 09:53:37,055 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 09:53:37,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-19 09:53:37,065 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:53:37,066 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:53:37,067 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:53:37,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1416877404, now seen corresponding path program 1 times [2018-09-19 09:53:37,075 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:53:37,076 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 55 with the following transitions: [2018-09-19 09:53:37,079 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 09:53:37,140 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:53:37,140 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:53:38,515 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:53:38,517 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 09:53:38,529 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:53:39,094 INFO L232 lantSequenceWeakener]: Weakened 52 states. On average, predicates are now at 75.76% of their original sizes. [2018-09-19 09:53:39,094 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:53:39,417 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:53:39,419 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:53:39,420 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 09:53:39,420 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:53:39,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 09:53:39,437 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 09:53:39,438 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 09:53:39,441 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 09:53:44,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:53:44,363 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 09:53:44,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 09:53:44,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2018-09-19 09:53:44,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:53:44,386 INFO L225 Difference]: With dead ends: 576 [2018-09-19 09:53:44,386 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 09:53:44,394 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 09:53:44,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 09:53:44,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 09:53:44,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 09:53:44,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 09:53:44,481 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 54 [2018-09-19 09:53:44,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:53:44,482 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 09:53:44,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 09:53:44,482 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 09:53:44,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-09-19 09:53:44,495 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:53:44,496 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:53:44,496 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:53:44,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1322178669, now seen corresponding path program 1 times [2018-09-19 09:53:44,497 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:53:44,497 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 126 with the following transitions: [2018-09-19 09:53:44,499 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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] [2018-09-19 09:53:44,511 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:53:44,511 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:53:45,872 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:53:48,607 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:53:48,608 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:53:48,616 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:53:49,604 INFO L232 lantSequenceWeakener]: Weakened 123 states. On average, predicates are now at 74.09% of their original sizes. [2018-09-19 09:53:49,605 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:53:50,034 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:53:50,034 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:53:50,034 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:53:50,034 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:53:50,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:53:50,036 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:53:50,037 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:53:50,037 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 09:53:58,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:53:58,694 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 09:53:58,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 09:53:58,697 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 125 [2018-09-19 09:53:58,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:53:58,705 INFO L225 Difference]: With dead ends: 717 [2018-09-19 09:53:58,705 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 09:53:58,709 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 131 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 09:53:58,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 09:53:58,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 09:53:58,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 09:53:58,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 669 transitions. [2018-09-19 09:53:58,745 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 669 transitions. Word has length 125 [2018-09-19 09:53:58,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:53:58,747 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 669 transitions. [2018-09-19 09:53:58,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:53:58,747 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 669 transitions. [2018-09-19 09:53:58,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-19 09:53:58,751 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:53:58,752 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:53:58,752 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:53:58,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1136942040, now seen corresponding path program 1 times [2018-09-19 09:53:58,752 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:53:58,753 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-09-19 09:53:58,753 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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] [2018-09-19 09:53:58,758 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:53:58,758 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:54:02,724 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:54:04,715 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:54:04,715 INFO L272 AbstractInterpreter]: Visited 87 different actions 248 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:54:04,720 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:54:05,380 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 73.99% of their original sizes. [2018-09-19 09:54:05,380 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:54:05,850 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:54:05,850 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:54:05,850 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 09:54:05,851 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:54:05,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 09:54:05,851 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 09:54:05,852 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 09:54:05,852 INFO L87 Difference]: Start difference. First operand 505 states and 669 transitions. Second operand 13 states. [2018-09-19 09:54:17,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:54:17,833 INFO L93 Difference]: Finished difference Result 1333 states and 2096 transitions. [2018-09-19 09:54:17,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 09:54:17,837 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 134 [2018-09-19 09:54:17,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:54:17,845 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 09:54:17,846 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 09:54:17,848 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 09:54:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 09:54:17,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 09:54:17,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 09:54:17,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 953 transitions. [2018-09-19 09:54:17,892 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 953 transitions. Word has length 134 [2018-09-19 09:54:17,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:54:17,893 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 953 transitions. [2018-09-19 09:54:17,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 09:54:17,893 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 953 transitions. [2018-09-19 09:54:17,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-09-19 09:54:17,898 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:54:17,899 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:54:17,899 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:54:17,899 INFO L82 PathProgramCache]: Analyzing trace with hash 291298896, now seen corresponding path program 1 times [2018-09-19 09:54:17,900 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:54:17,900 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 171 with the following transitions: [2018-09-19 09:54:17,900 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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] [2018-09-19 09:54:17,907 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:54:17,907 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:54:20,684 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:54:26,525 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:54:26,526 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. [2018-09-19 09:54:26,535 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:54:27,298 INFO L232 lantSequenceWeakener]: Weakened 168 states. On average, predicates are now at 73.72% of their original sizes. [2018-09-19 09:54:27,298 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:54:27,759 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:54:27,759 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:54:27,759 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 09:54:27,759 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:54:27,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 09:54:27,760 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 09:54:27,760 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 09:54:27,761 INFO L87 Difference]: Start difference. First operand 762 states and 953 transitions. Second operand 12 states. [2018-09-19 09:54:40,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:54:40,002 INFO L93 Difference]: Finished difference Result 1677 states and 2220 transitions. [2018-09-19 09:54:40,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:54:40,003 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 170 [2018-09-19 09:54:40,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:54:40,010 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 09:54:40,010 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 09:54:40,012 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 178 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 09:54:40,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 09:54:40,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 09:54:40,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 09:54:40,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1287 transitions. [2018-09-19 09:54:40,053 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1287 transitions. Word has length 170 [2018-09-19 09:54:40,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:54:40,054 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1287 transitions. [2018-09-19 09:54:40,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 09:54:40,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1287 transitions. [2018-09-19 09:54:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-09-19 09:54:40,057 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:54:40,058 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:54:40,058 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:54:40,058 INFO L82 PathProgramCache]: Analyzing trace with hash 991767315, now seen corresponding path program 1 times [2018-09-19 09:54:40,058 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:54:40,059 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-09-19 09:54:40,059 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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] [2018-09-19 09:54:40,064 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:54:40,064 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:54:49,952 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:54:49,953 INFO L272 AbstractInterpreter]: Visited 142 different actions 413 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:54:49,957 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:54:50,719 INFO L232 lantSequenceWeakener]: Weakened 187 states. On average, predicates are now at 73.62% of their original sizes. [2018-09-19 09:54:50,719 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:54:51,081 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:54:51,082 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:54:51,082 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 09:54:51,082 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:54:51,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 09:54:51,083 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 09:54:51,083 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 09:54:51,083 INFO L87 Difference]: Start difference. First operand 1056 states and 1287 transitions. Second operand 12 states. [2018-09-19 09:54:58,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:54:58,681 INFO L93 Difference]: Finished difference Result 2268 states and 2899 transitions. [2018-09-19 09:54:58,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 09:54:58,686 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 189 [2018-09-19 09:54:58,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:54:58,692 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 09:54:58,693 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 09:54:58,696 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 198 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 09:54:58,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 09:54:58,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 09:54:58,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 09:54:58,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1615 transitions. [2018-09-19 09:54:58,743 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1615 transitions. Word has length 189 [2018-09-19 09:54:58,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:54:58,744 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1615 transitions. [2018-09-19 09:54:58,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 09:54:58,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1615 transitions. [2018-09-19 09:54:58,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-09-19 09:54:58,747 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:54:58,748 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:54:58,748 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:54:58,748 INFO L82 PathProgramCache]: Analyzing trace with hash -400280177, now seen corresponding path program 1 times [2018-09-19 09:54:58,748 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:54:58,749 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-09-19 09:54:58,749 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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] [2018-09-19 09:54:58,757 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:54:58,757 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:55:00,126 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:55:05,013 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:55:05,014 INFO L272 AbstractInterpreter]: Visited 84 different actions 323 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:55:05,020 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:55:05,980 INFO L232 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 73.61% of their original sizes. [2018-09-19 09:55:05,980 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:55:06,354 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:55:06,355 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:55:06,355 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:55:06,355 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:55:06,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:55:06,355 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:55:06,355 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:55:06,356 INFO L87 Difference]: Start difference. First operand 1352 states and 1615 transitions. Second operand 10 states. [2018-09-19 09:55:11,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:55:11,189 INFO L93 Difference]: Finished difference Result 2719 states and 3388 transitions. [2018-09-19 09:55:11,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:55:11,193 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 201 [2018-09-19 09:55:11,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:55:11,201 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 09:55:11,201 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 09:55:11,204 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 208 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 09:55:11,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 09:55:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 09:55:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 09:55:11,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1792 transitions. [2018-09-19 09:55:11,261 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1792 transitions. Word has length 201 [2018-09-19 09:55:11,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:55:11,262 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1792 transitions. [2018-09-19 09:55:11,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:55:11,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1792 transitions. [2018-09-19 09:55:11,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-09-19 09:55:11,265 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:55:11,265 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:55:11,266 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:55:11,266 INFO L82 PathProgramCache]: Analyzing trace with hash -223324117, now seen corresponding path program 1 times [2018-09-19 09:55:11,266 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:55:11,266 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 204 with the following transitions: [2018-09-19 09:55:11,267 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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], [526], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:55:11,269 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:55:11,269 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:55:12,658 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:55:18,282 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:55:18,283 INFO L272 AbstractInterpreter]: Visited 86 different actions 333 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 09:55:18,320 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:55:19,283 INFO L232 lantSequenceWeakener]: Weakened 201 states. On average, predicates are now at 73.6% of their original sizes. [2018-09-19 09:55:19,284 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:55:19,559 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:55:19,559 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:55:19,559 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:55:19,559 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:55:19,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:55:19,560 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:55:19,560 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:55:19,560 INFO L87 Difference]: Start difference. First operand 1503 states and 1792 transitions. Second operand 10 states. [2018-09-19 09:55:26,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:55:26,446 INFO L93 Difference]: Finished difference Result 3020 states and 3751 transitions. [2018-09-19 09:55:26,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:55:26,446 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 203 [2018-09-19 09:55:26,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:55:26,454 INFO L225 Difference]: With dead ends: 3020 [2018-09-19 09:55:26,455 INFO L226 Difference]: Without dead ends: 1671 [2018-09-19 09:55:26,458 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 210 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 09:55:26,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2018-09-19 09:55:26,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1654. [2018-09-19 09:55:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2018-09-19 09:55:26,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 1988 transitions. [2018-09-19 09:55:26,531 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 1988 transitions. Word has length 203 [2018-09-19 09:55:26,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:55:26,532 INFO L480 AbstractCegarLoop]: Abstraction has 1654 states and 1988 transitions. [2018-09-19 09:55:26,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:55:26,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 1988 transitions. [2018-09-19 09:55:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-09-19 09:55:26,538 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:55:26,538 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:55:26,539 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:55:26,539 INFO L82 PathProgramCache]: Analyzing trace with hash 598938979, now seen corresponding path program 1 times [2018-09-19 09:55:26,539 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:55:26,539 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-09-19 09:55:26,540 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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], [542], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:55:26,542 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:55:26,542 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:55:28,054 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:55:33,578 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:55:33,578 INFO L272 AbstractInterpreter]: Visited 90 different actions 349 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 09:55:33,587 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:55:34,364 INFO L232 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 73.59% of their original sizes. [2018-09-19 09:55:34,364 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:55:34,651 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:55:34,651 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:55:34,651 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:55:34,651 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:55:34,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:55:34,652 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:55:34,652 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:55:34,652 INFO L87 Difference]: Start difference. First operand 1654 states and 1988 transitions. Second operand 10 states. [2018-09-19 09:55:41,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:55:41,681 INFO L93 Difference]: Finished difference Result 3477 states and 4328 transitions. [2018-09-19 09:55:41,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:55:41,682 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2018-09-19 09:55:41,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:55:41,690 INFO L225 Difference]: With dead ends: 3477 [2018-09-19 09:55:41,690 INFO L226 Difference]: Without dead ends: 1977 [2018-09-19 09:55:41,694 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 214 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 09:55:41,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2018-09-19 09:55:41,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1954. [2018-09-19 09:55:41,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-09-19 09:55:41,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2362 transitions. [2018-09-19 09:55:41,762 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2362 transitions. Word has length 207 [2018-09-19 09:55:41,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:55:41,762 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 2362 transitions. [2018-09-19 09:55:41,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:55:41,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2362 transitions. [2018-09-19 09:55:41,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-09-19 09:55:41,767 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:55:41,767 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:55:41,767 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:55:41,767 INFO L82 PathProgramCache]: Analyzing trace with hash -666149577, now seen corresponding path program 1 times [2018-09-19 09:55:41,768 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:55:41,768 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 214 with the following transitions: [2018-09-19 09:55:41,768 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:55:41,770 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:55:41,771 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:55:43,012 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:55:52,476 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:55:52,476 INFO L272 AbstractInterpreter]: Visited 96 different actions 373 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 09:55:52,482 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:55:53,410 INFO L232 lantSequenceWeakener]: Weakened 211 states. On average, predicates are now at 73.56% of their original sizes. [2018-09-19 09:55:53,411 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:55:53,666 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:55:53,667 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:55:53,667 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:55:53,667 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:55:53,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:55:53,667 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:55:53,668 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:55:53,668 INFO L87 Difference]: Start difference. First operand 1954 states and 2362 transitions. Second operand 10 states. [2018-09-19 09:55:58,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:55:58,335 INFO L93 Difference]: Finished difference Result 3932 states and 4909 transitions. [2018-09-19 09:55:58,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:55:58,340 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2018-09-19 09:55:58,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:55:58,350 INFO L225 Difference]: With dead ends: 3932 [2018-09-19 09:55:58,350 INFO L226 Difference]: Without dead ends: 2132 [2018-09-19 09:55:58,354 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 220 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 09:55:58,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2018-09-19 09:55:58,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2109. [2018-09-19 09:55:58,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2018-09-19 09:55:58,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2577 transitions. [2018-09-19 09:55:58,434 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2577 transitions. Word has length 213 [2018-09-19 09:55:58,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:55:58,437 INFO L480 AbstractCegarLoop]: Abstraction has 2109 states and 2577 transitions. [2018-09-19 09:55:58,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:55:58,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2577 transitions. [2018-09-19 09:55:58,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-09-19 09:55:58,443 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:55:58,443 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:55:58,444 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:55:58,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1908563472, now seen corresponding path program 1 times [2018-09-19 09:55:58,444 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:55:58,444 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 223 with the following transitions: [2018-09-19 09:55:58,444 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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], [602], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:55:58,447 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:55:58,447 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:55:59,801 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:56:09,867 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:56:09,867 INFO L272 AbstractInterpreter]: Visited 105 different actions 407 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:56:09,877 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:56:10,859 INFO L232 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 73.53% of their original sizes. [2018-09-19 09:56:10,859 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:56:11,187 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:56:11,188 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:56:11,188 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 09:56:11,188 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:56:11,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 09:56:11,188 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 09:56:11,189 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 09:56:11,189 INFO L87 Difference]: Start difference. First operand 2109 states and 2577 transitions. Second operand 11 states. [2018-09-19 09:56:16,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:56:16,028 INFO L93 Difference]: Finished difference Result 4320 states and 5463 transitions. [2018-09-19 09:56:16,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 09:56:16,029 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2018-09-19 09:56:16,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:56:16,039 INFO L225 Difference]: With dead ends: 4320 [2018-09-19 09:56:16,040 INFO L226 Difference]: Without dead ends: 2365 [2018-09-19 09:56:16,045 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 09:56:16,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2018-09-19 09:56:16,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2262. [2018-09-19 09:56:16,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2018-09-19 09:56:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 2792 transitions. [2018-09-19 09:56:16,127 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 2792 transitions. Word has length 222 [2018-09-19 09:56:16,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:56:16,128 INFO L480 AbstractCegarLoop]: Abstraction has 2262 states and 2792 transitions. [2018-09-19 09:56:16,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 09:56:16,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 2792 transitions. [2018-09-19 09:56:16,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-09-19 09:56:16,133 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:56:16,133 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:56:16,133 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:56:16,134 INFO L82 PathProgramCache]: Analyzing trace with hash 2092205444, now seen corresponding path program 1 times [2018-09-19 09:56:16,134 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:56:16,134 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 229 with the following transitions: [2018-09-19 09:56:16,134 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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], [626], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:56:16,137 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:56:16,137 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:56:17,452 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:56:25,562 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:56:25,562 INFO L272 AbstractInterpreter]: Visited 111 different actions 433 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 09:56:25,571 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:56:26,487 INFO L232 lantSequenceWeakener]: Weakened 226 states. On average, predicates are now at 73.51% of their original sizes. [2018-09-19 09:56:26,488 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:56:26,829 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:56:26,829 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:56:26,829 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 09:56:26,829 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:56:26,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 09:56:26,830 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 09:56:26,830 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 09:56:26,831 INFO L87 Difference]: Start difference. First operand 2262 states and 2792 transitions. Second operand 11 states. [2018-09-19 09:56:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:56:34,505 INFO L93 Difference]: Finished difference Result 4808 states and 6139 transitions. [2018-09-19 09:56:34,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 09:56:34,513 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 228 [2018-09-19 09:56:34,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:56:34,523 INFO L225 Difference]: With dead ends: 4808 [2018-09-19 09:56:34,524 INFO L226 Difference]: Without dead ends: 2700 [2018-09-19 09:56:34,529 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 236 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 09:56:34,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2018-09-19 09:56:34,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2670. [2018-09-19 09:56:34,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2670 states. [2018-09-19 09:56:34,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3328 transitions. [2018-09-19 09:56:34,613 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3328 transitions. Word has length 228 [2018-09-19 09:56:34,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:56:34,614 INFO L480 AbstractCegarLoop]: Abstraction has 2670 states and 3328 transitions. [2018-09-19 09:56:34,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 09:56:34,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3328 transitions. [2018-09-19 09:56:34,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-09-19 09:56:34,620 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:56:34,620 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:56:34,620 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:56:34,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1322762731, now seen corresponding path program 1 times [2018-09-19 09:56:34,621 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:56:34,621 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 236 with the following transitions: [2018-09-19 09:56:34,621 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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], [654], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:56:34,624 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:56:34,624 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:56:36,127 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:56:45,068 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:56:45,069 INFO L272 AbstractInterpreter]: Visited 118 different actions 459 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:56:45,078 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:56:45,942 INFO L232 lantSequenceWeakener]: Weakened 233 states. On average, predicates are now at 73.48% of their original sizes. [2018-09-19 09:56:45,942 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:56:46,303 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:56:46,304 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:56:46,304 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 09:56:46,304 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:56:46,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 09:56:46,305 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 09:56:46,305 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 09:56:46,305 INFO L87 Difference]: Start difference. First operand 2670 states and 3328 transitions. Second operand 11 states. [2018-09-19 09:56:52,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:56:52,068 INFO L93 Difference]: Finished difference Result 5752 states and 7377 transitions. [2018-09-19 09:56:52,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 09:56:52,070 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 235 [2018-09-19 09:56:52,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:56:52,082 INFO L225 Difference]: With dead ends: 5752 [2018-09-19 09:56:52,082 INFO L226 Difference]: Without dead ends: 3236 [2018-09-19 09:56:52,089 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 243 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 09:56:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2018-09-19 09:56:52,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 3129. [2018-09-19 09:56:52,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3129 states. [2018-09-19 09:56:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 3930 transitions. [2018-09-19 09:56:52,195 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 3930 transitions. Word has length 235 [2018-09-19 09:56:52,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:56:52,195 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 3930 transitions. [2018-09-19 09:56:52,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 09:56:52,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 3930 transitions. [2018-09-19 09:56:52,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-09-19 09:56:52,201 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:56:52,201 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:56:52,201 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:56:52,202 INFO L82 PathProgramCache]: Analyzing trace with hash -107945776, now seen corresponding path program 1 times [2018-09-19 09:56:52,202 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:56:52,202 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 239 with the following transitions: [2018-09-19 09:56:52,202 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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] [2018-09-19 09:56:52,205 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:56:52,205 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:56:53,716 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:57:03,549 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:57:03,550 INFO L272 AbstractInterpreter]: Visited 121 different actions 471 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:57:03,554 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:57:04,621 INFO L232 lantSequenceWeakener]: Weakened 236 states. On average, predicates are now at 73.47% of their original sizes. [2018-09-19 09:57:04,621 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:57:05,083 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:57:05,084 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:57:05,084 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 09:57:05,084 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:57:05,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 09:57:05,085 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 09:57:05,085 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 09:57:05,085 INFO L87 Difference]: Start difference. First operand 3129 states and 3930 transitions. Second operand 13 states. [2018-09-19 09:57:13,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:57:13,171 INFO L93 Difference]: Finished difference Result 6701 states and 8709 transitions. [2018-09-19 09:57:13,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 09:57:13,172 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 238 [2018-09-19 09:57:13,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:57:13,185 INFO L225 Difference]: With dead ends: 6701 [2018-09-19 09:57:13,185 INFO L226 Difference]: Without dead ends: 3726 [2018-09-19 09:57:13,191 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 250 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 09:57:13,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2018-09-19 09:57:13,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3529. [2018-09-19 09:57:13,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3529 states. [2018-09-19 09:57:13,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 4443 transitions. [2018-09-19 09:57:13,304 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 4443 transitions. Word has length 238 [2018-09-19 09:57:13,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:57:13,304 INFO L480 AbstractCegarLoop]: Abstraction has 3529 states and 4443 transitions. [2018-09-19 09:57:13,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 09:57:13,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 4443 transitions. [2018-09-19 09:57:13,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-09-19 09:57:13,310 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:57:13,310 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:57:13,310 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:57:13,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1963915651, now seen corresponding path program 1 times [2018-09-19 09:57:13,311 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:57:13,311 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 244 with the following transitions: [2018-09-19 09:57:13,311 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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] [2018-09-19 09:57:13,314 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:57:13,314 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:57:15,804 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:57:27,353 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:57:27,353 INFO L272 AbstractInterpreter]: Visited 124 different actions 603 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 09:57:27,360 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:57:28,358 INFO L232 lantSequenceWeakener]: Weakened 241 states. On average, predicates are now at 73.46% of their original sizes. [2018-09-19 09:57:28,359 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:57:28,629 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:57:28,630 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:57:28,630 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 09:57:28,630 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:57:28,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 09:57:28,630 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 09:57:28,631 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 09:57:28,631 INFO L87 Difference]: Start difference. First operand 3529 states and 4443 transitions. Second operand 10 states. [2018-09-19 09:57:33,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 09:57:33,360 INFO L93 Difference]: Finished difference Result 7079 states and 9092 transitions. [2018-09-19 09:57:33,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 09:57:33,362 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 243 [2018-09-19 09:57:33,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 09:57:33,375 INFO L225 Difference]: With dead ends: 7079 [2018-09-19 09:57:33,375 INFO L226 Difference]: Without dead ends: 3704 [2018-09-19 09:57:33,382 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 250 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 09:57:33,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2018-09-19 09:57:33,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3677. [2018-09-19 09:57:33,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3677 states. [2018-09-19 09:57:33,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3677 states to 3677 states and 4642 transitions. [2018-09-19 09:57:33,500 INFO L78 Accepts]: Start accepts. Automaton has 3677 states and 4642 transitions. Word has length 243 [2018-09-19 09:57:33,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 09:57:33,501 INFO L480 AbstractCegarLoop]: Abstraction has 3677 states and 4642 transitions. [2018-09-19 09:57:33,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 09:57:33,501 INFO L276 IsEmpty]: Start isEmpty. Operand 3677 states and 4642 transitions. [2018-09-19 09:57:33,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-09-19 09:57:33,506 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 09:57:33,506 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 09:57:33,507 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 09:57:33,507 INFO L82 PathProgramCache]: Analyzing trace with hash 515955091, now seen corresponding path program 1 times [2018-09-19 09:57:33,507 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 09:57:33,507 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-09-19 09:57:33,508 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [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], [667], [671], [675], [679], [683], [687], [691], [695], [699], [702], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 09:57:33,511 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 09:57:33,511 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 09:57:35,237 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 09:57:49,461 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 09:57:49,461 INFO L272 AbstractInterpreter]: Visited 130 different actions 634 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 09:57:49,471 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 09:57:50,451 INFO L232 lantSequenceWeakener]: Weakened 245 states. On average, predicates are now at 73.45% of their original sizes. [2018-09-19 09:57:50,451 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 09:57:50,929 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 09:57:50,929 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 09:57:50,929 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 09:57:50,929 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 09:57:50,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 09:57:50,930 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 09:57:50,930 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 09:57:50,930 INFO L87 Difference]: Start difference. First operand 3677 states and 4642 transitions. Second operand 13 states. Received shutdown request... [2018-09-19 09:57:55,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 09:57:55,964 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 09:57:55,970 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 09:57:55,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 09:57:55 BoogieIcfgContainer [2018-09-19 09:57:55,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 09:57:55,971 INFO L168 Benchmark]: Toolchain (without parser) took 263534.38 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 4.0 GB in the end (delta: -2.6 GB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. [2018-09-19 09:57:55,973 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 09:57:55,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.60 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 09:57:55,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.64 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. [2018-09-19 09:57:55,975 INFO L168 Benchmark]: Boogie Preprocessor took 225.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -838.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. [2018-09-19 09:57:55,976 INFO L168 Benchmark]: RCFGBuilder took 3429.63 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: 123.4 MB). Peak memory consumption was 123.4 MB. Max. memory is 7.1 GB. [2018-09-19 09:57:55,976 INFO L168 Benchmark]: TraceAbstraction took 259032.11 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 4.0 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 09:57:55,981 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.60 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 124.64 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 225.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -838.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3429.63 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: 123.4 MB). Peak memory consumption was 123.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 259032.11 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 4.0 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 145). Cancelled while BasicCegarLoop was constructing difference of abstraction (3677states) and FLOYD_HOARE automaton (currently 20 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (674 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 258.9s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 105.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2737 SDtfs, 11571 SDslu, 5316 SDs, 0 SdLazy, 28858 SolverSat, 2611 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 91.2s Time, PredicateUnifierStatistics: 30 DeclaredPredicates, 3026 GetRequests, 2762 SyntacticMatches, 0 SemanticMatches, 264 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 900 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3677occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 133.8s AbstIntTime, 15 AbstIntIterations, 15 AbstIntStrong, 0.99441429863067 AbsIntWeakeningRatio, 0.12232204561161023 AbsIntAvgWeakeningVarsNumRemoved, 878.5981340704907 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 792 StatesRemovedByMinimization, 14 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_label00_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_09-57-55-997.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label00_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_09-57-55-997.csv Completed graceful shutdown