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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:22:14,427 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:22:14,430 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:22:14,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:22:14,444 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:22:14,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:22:14,447 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:22:14,448 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:22:14,450 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:22:14,452 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:22:14,453 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:22:14,457 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:22:14,458 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:22:14,458 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:22:14,462 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:22:14,463 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:22:14,463 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:22:14,467 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:22:14,473 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:22:14,475 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:22:14,476 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:22:14,477 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:22:14,481 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-15 15:22:14,498 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 15:22:14,525 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:22:14,525 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:22:14,526 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:22:14,526 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:22:14,527 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:22:14,528 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:22:14,528 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 15:22:14,528 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:22:14,528 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:22:14,529 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 15:22:14,529 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:22:14,529 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:22:14,530 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:22:14,530 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:22:14,530 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:22:14,531 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:22:14,531 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:22:14,531 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:22:14,531 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:22:14,533 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:22:14,533 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:22:14,533 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:22:14,533 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:22:14,534 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:22:14,534 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:22:14,534 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:22:14,534 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:22:14,534 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:22:14,535 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:22:14,535 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:22:14,535 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:22:14,535 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:22:14,535 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:22:14,536 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:22:14,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:22:14,616 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:22:14,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:22:14,625 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:22:14,626 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:22:14,627 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label02_true-unreach-call.c [2018-09-15 15:22:15,078 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e77bfd293/9a751b7043b24ed695f20285ac2d1ffe/FLAGe06ac454d [2018-09-15 15:22:15,633 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:22:15,637 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label02_true-unreach-call.c [2018-09-15 15:22:15,688 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e77bfd293/9a751b7043b24ed695f20285ac2d1ffe/FLAGe06ac454d [2018-09-15 15:22:15,712 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e77bfd293/9a751b7043b24ed695f20285ac2d1ffe [2018-09-15 15:22:15,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:22:15,732 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:22:15,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:22:15,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:22:15,746 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:22:15,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:22:15" (1/1) ... [2018-09-15 15:22:15,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560f8b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:15, skipping insertion in model container [2018-09-15 15:22:15,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:22:15" (1/1) ... [2018-09-15 15:22:15,768 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:22:17,330 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:22:17,369 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:22:17,863 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:22:18,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18 WrapperNode [2018-09-15 15:22:18,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:22:18,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:22:18,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:22:18,190 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:22:18,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18" (1/1) ... [2018-09-15 15:22:18,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18" (1/1) ... [2018-09-15 15:22:19,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:22:19,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:22:19,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:22:19,132 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:22:19,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18" (1/1) ... [2018-09-15 15:22:19,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18" (1/1) ... [2018-09-15 15:22:19,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18" (1/1) ... [2018-09-15 15:22:19,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18" (1/1) ... [2018-09-15 15:22:19,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18" (1/1) ... [2018-09-15 15:22:19,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18" (1/1) ... [2018-09-15 15:22:19,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18" (1/1) ... [2018-09-15 15:22:19,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:22:19,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:22:19,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:22:19,602 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:22:19,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:22:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:22:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:22:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 15:22:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 15:22:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 15:22:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 15:22:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:22:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:22:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:22:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:22:33,419 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:22:33,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:22:33 BoogieIcfgContainer [2018-09-15 15:22:33,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:22:33,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:22:33,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:22:33,426 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:22:33,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:22:15" (1/3) ... [2018-09-15 15:22:33,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7ef7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:22:33, skipping insertion in model container [2018-09-15 15:22:33,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:22:18" (2/3) ... [2018-09-15 15:22:33,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7ef7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:22:33, skipping insertion in model container [2018-09-15 15:22:33,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:22:33" (3/3) ... [2018-09-15 15:22:33,432 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label02_true-unreach-call.c [2018-09-15 15:22:33,446 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:22:33,458 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:22:33,524 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:22:33,525 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:22:33,526 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:22:33,526 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:22:33,526 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:22:33,526 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:22:33,526 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:22:33,526 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:22:33,527 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:22:33,583 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-15 15:22:33,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-15 15:22:33,594 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:22:33,596 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, 1, 1, 1, 1, 1, 1] [2018-09-15 15:22:33,598 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:22:33,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1150781316, now seen corresponding path program 1 times [2018-09-15 15:22:33,606 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:22:33,608 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 61 with the following transitions: [2018-09-15 15:22:33,612 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1090], [1092], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-15 15:22:33,677 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:22:33,678 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:22:35,116 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:22:35,118 INFO L272 AbstractInterpreter]: Visited 59 different actions 59 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 15:22:35,169 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:22:35,836 INFO L232 lantSequenceWeakener]: Weakened 57 states. On average, predicates are now at 77.57% of their original sizes. [2018-09-15 15:22:35,836 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:22:36,014 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:22:36,016 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:22:36,016 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 15:22:36,016 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:22:36,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 15:22:36,030 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 15:22:36,030 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:22:36,033 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-15 15:22:47,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:22:47,930 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-15 15:22:47,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 15:22:47,935 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2018-09-15 15:22:47,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:22:47,958 INFO L225 Difference]: With dead ends: 1642 [2018-09-15 15:22:47,958 INFO L226 Difference]: Without dead ends: 1036 [2018-09-15 15:22:47,969 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:22:47,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-15 15:22:48,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-15 15:22:48,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-15 15:22:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-15 15:22:48,088 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 60 [2018-09-15 15:22:48,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:22:48,089 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-15 15:22:48,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 15:22:48,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-15 15:22:48,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-09-15 15:22:48,096 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:22:48,097 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, 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] [2018-09-15 15:22:48,097 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:22:48,097 INFO L82 PathProgramCache]: Analyzing trace with hash -201939790, now seen corresponding path program 1 times [2018-09-15 15:22:48,098 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:22:48,098 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 136 with the following transitions: [2018-09-15 15:22:48,100 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1090], [1092], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:22:48,112 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:22:48,113 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:22:49,902 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:22:52,579 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:22:52,579 INFO L272 AbstractInterpreter]: Visited 82 different actions 157 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 15:22:52,588 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:22:55,361 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 76.2% of their original sizes. [2018-09-15 15:22:55,361 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:22:56,159 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:22:56,159 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:22:56,159 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 15:22:56,160 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:22:56,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 15:22:56,161 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 15:22:56,161 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 15:22:56,162 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 11 states. [2018-09-15 15:23:17,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:23:17,744 INFO L93 Difference]: Finished difference Result 2502 states and 4301 transitions. [2018-09-15 15:23:17,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 15:23:17,751 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 135 [2018-09-15 15:23:17,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:23:17,764 INFO L225 Difference]: With dead ends: 2502 [2018-09-15 15:23:17,764 INFO L226 Difference]: Without dead ends: 1908 [2018-09-15 15:23:17,769 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 141 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 15:23:17,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2018-09-15 15:23:17,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1905. [2018-09-15 15:23:17,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1905 states. [2018-09-15 15:23:17,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2402 transitions. [2018-09-15 15:23:17,837 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2402 transitions. Word has length 135 [2018-09-15 15:23:17,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:23:17,838 INFO L480 AbstractCegarLoop]: Abstraction has 1905 states and 2402 transitions. [2018-09-15 15:23:17,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 15:23:17,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2402 transitions. [2018-09-15 15:23:17,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-09-15 15:23:17,849 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:23:17,850 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, 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] [2018-09-15 15:23:17,850 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:23:17,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1698206154, now seen corresponding path program 1 times [2018-09-15 15:23:17,851 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:23:17,851 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-09-15 15:23:17,851 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1090], [1092], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:23:17,856 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:23:17,856 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:23:21,111 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:23:29,888 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:23:29,888 INFO L272 AbstractInterpreter]: Visited 95 different actions 184 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 15:23:29,893 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:23:39,612 INFO L232 lantSequenceWeakener]: Weakened 145 states. On average, predicates are now at 76.09% of their original sizes. [2018-09-15 15:23:39,612 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:23:39,751 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:23:39,751 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:23:39,752 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 15:23:39,752 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:23:39,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 15:23:39,753 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 15:23:39,753 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 15:23:39,753 INFO L87 Difference]: Start difference. First operand 1905 states and 2402 transitions. Second operand 11 states. [2018-09-15 15:23:48,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:23:48,162 INFO L93 Difference]: Finished difference Result 2938 states and 4330 transitions. [2018-09-15 15:23:48,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 15:23:48,170 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 148 [2018-09-15 15:23:48,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:23:48,184 INFO L225 Difference]: With dead ends: 2938 [2018-09-15 15:23:48,184 INFO L226 Difference]: Without dead ends: 2344 [2018-09-15 15:23:48,189 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-15 15:23:48,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2018-09-15 15:23:48,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 2341. [2018-09-15 15:23:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2341 states. [2018-09-15 15:23:48,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2341 states to 2341 states and 2853 transitions. [2018-09-15 15:23:48,255 INFO L78 Accepts]: Start accepts. Automaton has 2341 states and 2853 transitions. Word has length 148 [2018-09-15 15:23:48,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:23:48,256 INFO L480 AbstractCegarLoop]: Abstraction has 2341 states and 2853 transitions. [2018-09-15 15:23:48,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 15:23:48,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2341 states and 2853 transitions. [2018-09-15 15:23:48,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-09-15 15:23:48,262 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:23:48,262 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:23:48,263 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:23:48,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1631996928, now seen corresponding path program 1 times [2018-09-15 15:23:48,263 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:23:48,264 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 224 with the following transitions: [2018-09-15 15:23:48,264 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1090], [1092], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:23:48,268 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:23:48,268 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:23:49,802 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:24:19,685 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:24:19,685 INFO L272 AbstractInterpreter]: Visited 96 different actions 465 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 15:24:19,708 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:24:30,776 INFO L232 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 75.77% of their original sizes. [2018-09-15 15:24:30,776 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:24:30,962 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:24:30,962 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:24:30,963 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 15:24:30,963 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:24:30,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 15:24:30,965 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 15:24:30,965 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-15 15:24:30,965 INFO L87 Difference]: Start difference. First operand 2341 states and 2853 transitions. Second operand 13 states. [2018-09-15 15:24:48,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:24:48,658 INFO L93 Difference]: Finished difference Result 3487 states and 4982 transitions. [2018-09-15 15:24:48,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 15:24:48,659 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 223 [2018-09-15 15:24:48,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:24:48,675 INFO L225 Difference]: With dead ends: 3487 [2018-09-15 15:24:48,675 INFO L226 Difference]: Without dead ends: 2893 [2018-09-15 15:24:48,680 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 234 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2018-09-15 15:24:48,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2018-09-15 15:24:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2888. [2018-09-15 15:24:48,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2888 states. [2018-09-15 15:24:48,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3487 transitions. [2018-09-15 15:24:48,762 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3487 transitions. Word has length 223 [2018-09-15 15:24:48,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:24:48,763 INFO L480 AbstractCegarLoop]: Abstraction has 2888 states and 3487 transitions. [2018-09-15 15:24:48,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-15 15:24:48,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3487 transitions. [2018-09-15 15:24:48,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-09-15 15:24:48,769 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:24:48,770 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:24:48,770 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:24:48,771 INFO L82 PathProgramCache]: Analyzing trace with hash -2094229755, now seen corresponding path program 1 times [2018-09-15 15:24:48,771 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:24:48,771 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 236 with the following transitions: [2018-09-15 15:24:48,772 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1090], [1092], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 15:24:48,781 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:24:48,781 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:24:51,769 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 15:25:54,938 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:25:54,939 INFO L272 AbstractInterpreter]: Visited 96 different actions 280 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-15 15:25:54,946 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:26:18,040 INFO L232 lantSequenceWeakener]: Weakened 232 states. On average, predicates are now at 75.73% of their original sizes. [2018-09-15 15:26:18,040 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:26:18,130 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:26:18,131 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:26:18,131 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 15:26:18,131 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:26:18,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 15:26:18,132 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 15:26:18,132 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 15:26:18,132 INFO L87 Difference]: Start difference. First operand 2888 states and 3487 transitions. Second operand 10 states. Received shutdown request... [2018-09-15 15:26:22,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 15:26:22,542 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 15:26:22,548 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 15:26:22,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 03:26:22 BoogieIcfgContainer [2018-09-15 15:26:22,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 15:26:22,549 INFO L168 Benchmark]: Toolchain (without parser) took 246820.54 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 838.5 MB in the end (delta: 587.0 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-09-15 15:26:22,551 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 15:26:22,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2456.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 182.3 MB). Peak memory consumption was 182.3 MB. Max. memory is 7.1 GB. [2018-09-15 15:26:22,553 INFO L168 Benchmark]: Boogie Procedure Inliner took 941.12 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 890.2 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 120.3 MB. Max. memory is 7.1 GB. [2018-09-15 15:26:22,554 INFO L168 Benchmark]: Boogie Preprocessor took 470.43 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2018-09-15 15:26:22,554 INFO L168 Benchmark]: RCFGBuilder took 13818.27 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 467.6 MB). Peak memory consumption was 467.6 MB. Max. memory is 7.1 GB. [2018-09-15 15:26:22,555 INFO L168 Benchmark]: TraceAbstraction took 229127.14 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 1.8 GB in the beginning and 838.5 MB in the end (delta: 986.6 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-15 15:26:22,560 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2456.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 182.3 MB). Peak memory consumption was 182.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 941.12 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 890.2 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 120.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 470.43 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13818.27 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 467.6 MB). Peak memory consumption was 467.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229127.14 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 1.8 GB in the beginning and 838.5 MB in the end (delta: 986.6 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 167]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 167). Cancelled while BasicCegarLoop was constructing difference of abstraction (2888states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (1834 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 229.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 64.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2703 SDtfs, 9367 SDslu, 2626 SDs, 0 SdLazy, 24108 SolverSat, 2311 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 56.1s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 830 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2888occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 115.7s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.997042698671222 AbsIntWeakeningRatio, 0.13944723618090452 AbsIntAvgWeakeningVarsNumRemoved, 3.478643216080402 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label02_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_15-26-22-575.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label02_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_15-26-22-575.csv Completed graceful shutdown