java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 09:23:07,695 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 09:23:07,698 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 09:23:07,710 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 09:23:07,711 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 09:23:07,712 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 09:23:07,714 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 09:23:07,716 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 09:23:07,718 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 09:23:07,719 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 09:23:07,720 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 09:23:07,720 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 09:23:07,721 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 09:23:07,722 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 09:23:07,723 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 09:23:07,724 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 09:23:07,725 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 09:23:07,727 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 09:23:07,729 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 09:23:07,731 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 09:23:07,732 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 09:23:07,736 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 09:23:07,739 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 09:23:07,739 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 09:23:07,740 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 09:23:07,744 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 09:23:07,745 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 09:23:07,748 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 09:23:07,751 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 09:23:07,752 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 09:23:07,753 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 09:23:07,753 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-15 09:23:07,758 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-15 09:23:07,792 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 09:23:07,792 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 09:23:07,793 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 09:23:07,793 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 09:23:07,794 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 09:23:07,794 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 09:23:07,794 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 09:23:07,794 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 09:23:07,794 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 09:23:07,795 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 09:23:07,795 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 09:23:07,796 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 09:23:07,796 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 09:23:07,796 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 09:23:07,796 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 09:23:07,797 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 09:23:07,797 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 09:23:07,797 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 09:23:07,798 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 09:23:07,798 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 09:23:07,798 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 09:23:07,798 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 09:23:07,799 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 09:23:07,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 09:23:07,799 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 09:23:07,799 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 09:23:07,799 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 09:23:07,800 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 09:23:07,800 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 09:23:07,800 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 09:23:07,800 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 09:23:07,800 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 09:23:07,800 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 09:23:07,857 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 09:23:07,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 09:23:07,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 09:23:07,876 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 09:23:07,876 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 09:23:07,877 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-09-15 09:23:08,256 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b9180a0/4d3d047ea7f5404ab83c7ed626cb394b/FLAG81b208451 [2018-09-15 09:23:08,444 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 09:23:08,445 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute_true-unreach-call_true-termination.i [2018-09-15 09:23:08,458 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b9180a0/4d3d047ea7f5404ab83c7ed626cb394b/FLAG81b208451 [2018-09-15 09:23:08,473 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61b9180a0/4d3d047ea7f5404ab83c7ed626cb394b [2018-09-15 09:23:08,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 09:23:08,486 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 09:23:08,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 09:23:08,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 09:23:08,494 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 09:23:08,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:23:08" (1/1) ... [2018-09-15 09:23:08,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572233bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08, skipping insertion in model container [2018-09-15 09:23:08,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:23:08" (1/1) ... [2018-09-15 09:23:08,510 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 09:23:08,726 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:23:08,743 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 09:23:08,764 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 09:23:08,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08 WrapperNode [2018-09-15 09:23:08,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 09:23:08,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 09:23:08,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 09:23:08,792 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 09:23:08,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08" (1/1) ... [2018-09-15 09:23:08,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08" (1/1) ... [2018-09-15 09:23:08,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 09:23:08,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 09:23:08,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 09:23:08,818 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 09:23:08,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08" (1/1) ... [2018-09-15 09:23:08,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08" (1/1) ... [2018-09-15 09:23:08,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08" (1/1) ... [2018-09-15 09:23:08,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08" (1/1) ... [2018-09-15 09:23:08,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08" (1/1) ... [2018-09-15 09:23:08,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08" (1/1) ... [2018-09-15 09:23:08,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08" (1/1) ... [2018-09-15 09:23:08,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 09:23:08,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 09:23:08,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 09:23:08,845 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 09:23:08,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08" (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 09:23:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 09:23:08,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 09:23:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 09:23:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 09:23:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 09:23:08,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 09:23:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 09:23:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 09:23:09,519 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 09:23:09,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:23:09 BoogieIcfgContainer [2018-09-15 09:23:09,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 09:23:09,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 09:23:09,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 09:23:09,524 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 09:23:09,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:23:08" (1/3) ... [2018-09-15 09:23:09,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5822c3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:23:09, skipping insertion in model container [2018-09-15 09:23:09,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:23:08" (2/3) ... [2018-09-15 09:23:09,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5822c3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:23:09, skipping insertion in model container [2018-09-15 09:23:09,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:23:09" (3/3) ... [2018-09-15 09:23:09,528 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute_true-unreach-call_true-termination.i [2018-09-15 09:23:09,538 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 09:23:09,548 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 09:23:09,601 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 09:23:09,601 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 09:23:09,602 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 09:23:09,602 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 09:23:09,602 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 09:23:09,602 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 09:23:09,602 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 09:23:09,602 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 09:23:09,602 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 09:23:09,625 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2018-09-15 09:23:09,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-15 09:23:09,632 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:09,633 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 09:23:09,634 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:09,640 INFO L82 PathProgramCache]: Analyzing trace with hash 398758246, now seen corresponding path program 1 times [2018-09-15 09:23:09,643 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:09,644 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-15 09:23:09,646 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [19], [25], [31], [39], [122], [125], [127], [133], [134], [135], [137] [2018-09-15 09:23:09,706 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:09,706 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:09,821 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:09,822 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-09-15 09:23:09,843 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:09,940 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-15 09:23:09,941 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:10,571 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:10,572 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:10,573 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 09:23:10,573 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:10,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 09:23:10,583 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 09:23:10,584 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-09-15 09:23:10,586 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 12 states. [2018-09-15 09:23:12,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:12,383 INFO L93 Difference]: Finished difference Result 145 states and 260 transitions. [2018-09-15 09:23:12,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-15 09:23:12,385 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 16 [2018-09-15 09:23:12,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:12,396 INFO L225 Difference]: With dead ends: 145 [2018-09-15 09:23:12,396 INFO L226 Difference]: Without dead ends: 80 [2018-09-15 09:23:12,401 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2018-09-15 09:23:12,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-15 09:23:12,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2018-09-15 09:23:12,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-15 09:23:12,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 91 transitions. [2018-09-15 09:23:12,470 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 91 transitions. Word has length 16 [2018-09-15 09:23:12,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:12,471 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 91 transitions. [2018-09-15 09:23:12,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 09:23:12,471 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2018-09-15 09:23:12,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-15 09:23:12,475 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:12,475 INFO L376 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:23:12,476 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:12,476 INFO L82 PathProgramCache]: Analyzing trace with hash 693279400, now seen corresponding path program 1 times [2018-09-15 09:23:12,476 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:12,477 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 52 with the following transitions: [2018-09-15 09:23:12,477 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [19], [25], [31], [39], [42], [45], [51], [55], [75], [122], [125], [127], [130], [132], [133], [134], [135], [137], [138], [139], [140], [141], [142], [143], [144], [149], [150], [151], [152], [153] [2018-09-15 09:23:12,481 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:12,481 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:12,534 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:12,535 INFO L272 AbstractInterpreter]: Visited 33 different actions 53 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-15 09:23:12,576 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:12,730 INFO L232 lantSequenceWeakener]: Weakened 31 states. On average, predicates are now at 67.96% of their original sizes. [2018-09-15 09:23:12,730 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:13,373 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:13,374 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:13,375 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 09:23:13,375 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:13,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 09:23:13,376 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 09:23:13,376 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-09-15 09:23:13,377 INFO L87 Difference]: Start difference. First operand 64 states and 91 transitions. Second operand 14 states. [2018-09-15 09:23:14,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:14,703 INFO L93 Difference]: Finished difference Result 110 states and 157 transitions. [2018-09-15 09:23:14,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 09:23:14,704 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2018-09-15 09:23:14,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:14,706 INFO L225 Difference]: With dead ends: 110 [2018-09-15 09:23:14,706 INFO L226 Difference]: Without dead ends: 80 [2018-09-15 09:23:14,708 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2018-09-15 09:23:14,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-15 09:23:14,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2018-09-15 09:23:14,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-15 09:23:14,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2018-09-15 09:23:14,730 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 51 [2018-09-15 09:23:14,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:14,731 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2018-09-15 09:23:14,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-15 09:23:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2018-09-15 09:23:14,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-15 09:23:14,733 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:14,734 INFO L376 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:23:14,734 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:14,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1023624178, now seen corresponding path program 1 times [2018-09-15 09:23:14,735 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:14,735 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-09-15 09:23:14,735 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [19], [25], [31], [39], [42], [45], [51], [57], [60], [75], [122], [125], [127], [130], [132], [133], [134], [135], [137], [138], [139], [140], [141], [142], [143], [144], [149], [150], [151], [152], [153] [2018-09-15 09:23:14,739 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:14,739 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:14,778 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:14,778 INFO L272 AbstractInterpreter]: Visited 35 different actions 59 times. Never merged. Never widened. Never found a fixpoint. Largest state had 10 variables. [2018-09-15 09:23:14,803 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:14,915 INFO L232 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 66.08% of their original sizes. [2018-09-15 09:23:14,915 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:15,387 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:15,387 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:15,388 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-15 09:23:15,388 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:15,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-15 09:23:15,389 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-15 09:23:15,389 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2018-09-15 09:23:15,390 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 15 states. [2018-09-15 09:23:16,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:16,427 INFO L93 Difference]: Finished difference Result 75 states and 102 transitions. [2018-09-15 09:23:16,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 09:23:16,430 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 52 [2018-09-15 09:23:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:16,434 INFO L225 Difference]: With dead ends: 75 [2018-09-15 09:23:16,435 INFO L226 Difference]: Without dead ends: 73 [2018-09-15 09:23:16,436 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-09-15 09:23:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-15 09:23:16,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68. [2018-09-15 09:23:16,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-09-15 09:23:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 93 transitions. [2018-09-15 09:23:16,460 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 93 transitions. Word has length 52 [2018-09-15 09:23:16,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:16,460 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 93 transitions. [2018-09-15 09:23:16,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-15 09:23:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 93 transitions. [2018-09-15 09:23:16,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-09-15 09:23:16,464 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:16,465 INFO L376 BasicCegarLoop]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:23:16,465 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:16,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1445669058, now seen corresponding path program 1 times [2018-09-15 09:23:16,466 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:16,466 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-09-15 09:23:16,466 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [19], [25], [31], [39], [42], [45], [51], [57], [60], [75], [82], [85], [91], [97], [100], [103], [122], [125], [127], [130], [132], [133], [134], [135], [137], [138], [139], [140], [141], [142], [143], [144], [149], [150], [151], [152], [153], [154], [155], [156], [157], [158], [159], [160], [161], [162], [163], [164], [165] [2018-09-15 09:23:16,470 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:16,470 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:16,526 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:16,526 INFO L272 AbstractInterpreter]: Visited 53 different actions 101 times. Never merged. Never widened. Never found a fixpoint. Largest state had 14 variables. [2018-09-15 09:23:16,556 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:16,776 INFO L232 lantSequenceWeakener]: Weakened 62 states. On average, predicates are now at 60.4% of their original sizes. [2018-09-15 09:23:16,781 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:17,803 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:17,804 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:17,804 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-09-15 09:23:17,804 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:17,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-15 09:23:17,805 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-15 09:23:17,805 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2018-09-15 09:23:17,805 INFO L87 Difference]: Start difference. First operand 68 states and 93 transitions. Second operand 22 states. [2018-09-15 09:23:20,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:20,331 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2018-09-15 09:23:20,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-15 09:23:20,331 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 88 [2018-09-15 09:23:20,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:20,334 INFO L225 Difference]: With dead ends: 102 [2018-09-15 09:23:20,334 INFO L226 Difference]: Without dead ends: 100 [2018-09-15 09:23:20,335 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=271, Invalid=989, Unknown=0, NotChecked=0, Total=1260 [2018-09-15 09:23:20,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-09-15 09:23:20,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 81. [2018-09-15 09:23:20,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-15 09:23:20,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 110 transitions. [2018-09-15 09:23:20,361 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 110 transitions. Word has length 88 [2018-09-15 09:23:20,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:20,362 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 110 transitions. [2018-09-15 09:23:20,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-09-15 09:23:20,362 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 110 transitions. [2018-09-15 09:23:20,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-15 09:23:20,365 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:20,365 INFO L376 BasicCegarLoop]: trace histogram [19, 18, 18, 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] [2018-09-15 09:23:20,366 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:20,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1187961660, now seen corresponding path program 1 times [2018-09-15 09:23:20,366 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:20,366 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2018-09-15 09:23:20,367 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [19], [25], [31], [39], [42], [45], [51], [57], [60], [75], [82], [85], [91], [97], [100], [103], [111], [122], [125], [127], [130], [132], [133], [134], [135], [137], [138], [139], [140], [141], [142], [143], [144], [149], [150], [151], [152], [153], [154], [155], [156], [157], [158], [159], [160], [161], [162], [163], [164], [165], [166], [167], [168], [169], [170], [171], [172] [2018-09-15 09:23:20,370 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:20,370 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:20,522 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:20,522 INFO L272 AbstractInterpreter]: Visited 61 different actions 367 times. Merged at 11 different actions 66 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 15 variables. [2018-09-15 09:23:20,539 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:20,681 INFO L232 lantSequenceWeakener]: Weakened 91 states. On average, predicates are now at 60.02% of their original sizes. [2018-09-15 09:23:20,682 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:21,672 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:21,672 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:21,673 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2018-09-15 09:23:21,673 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:21,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-09-15 09:23:21,674 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-09-15 09:23:21,675 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=505, Unknown=0, NotChecked=0, Total=600 [2018-09-15 09:23:21,675 INFO L87 Difference]: Start difference. First operand 81 states and 110 transitions. Second operand 25 states. [2018-09-15 09:23:24,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:24,708 INFO L93 Difference]: Finished difference Result 122 states and 169 transitions. [2018-09-15 09:23:24,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-15 09:23:24,714 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 123 [2018-09-15 09:23:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:24,716 INFO L225 Difference]: With dead ends: 122 [2018-09-15 09:23:24,716 INFO L226 Difference]: Without dead ends: 100 [2018-09-15 09:23:24,718 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=397, Invalid=1495, Unknown=0, NotChecked=0, Total=1892 [2018-09-15 09:23:24,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-09-15 09:23:24,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 87. [2018-09-15 09:23:24,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-15 09:23:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2018-09-15 09:23:24,745 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 123 [2018-09-15 09:23:24,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:24,749 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2018-09-15 09:23:24,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-09-15 09:23:24,749 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2018-09-15 09:23:24,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-09-15 09:23:24,755 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 09:23:24,756 INFO L376 BasicCegarLoop]: trace histogram [21, 20, 20, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-15 09:23:24,756 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 09:23:24,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1694343236, now seen corresponding path program 1 times [2018-09-15 09:23:24,757 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 09:23:24,757 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-09-15 09:23:24,757 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [19], [25], [31], [39], [42], [45], [51], [57], [60], [75], [82], [85], [91], [97], [100], [103], [109], [111], [122], [125], [127], [130], [132], [133], [134], [135], [137], [138], [139], [140], [141], [142], [143], [144], [149], [150], [151], [152], [153], [154], [155], [156], [157], [158], [159], [160], [161], [162], [163], [164], [165], [166], [167], [168], [169], [170], [171], [172] [2018-09-15 09:23:24,763 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 09:23:24,763 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 09:23:24,970 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 09:23:24,971 INFO L272 AbstractInterpreter]: Visited 62 different actions 508 times. Merged at 12 different actions 107 times. Widened at 1 different actions 5 times. Found 11 fixpoints after 2 different actions. Largest state had 15 variables. [2018-09-15 09:23:25,011 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 09:23:25,171 INFO L232 lantSequenceWeakener]: Weakened 104 states. On average, predicates are now at 58.64% of their original sizes. [2018-09-15 09:23:25,175 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 09:23:26,841 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 09:23:26,841 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 09:23:26,842 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2018-09-15 09:23:26,842 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 09:23:26,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-09-15 09:23:26,843 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-09-15 09:23:26,843 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2018-09-15 09:23:26,844 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand 26 states. [2018-09-15 09:23:29,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 09:23:29,396 INFO L93 Difference]: Finished difference Result 94 states and 127 transitions. [2018-09-15 09:23:29,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-15 09:23:29,397 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 138 [2018-09-15 09:23:29,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 09:23:29,398 INFO L225 Difference]: With dead ends: 94 [2018-09-15 09:23:29,399 INFO L226 Difference]: Without dead ends: 0 [2018-09-15 09:23:29,401 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=384, Invalid=1422, Unknown=0, NotChecked=0, Total=1806 [2018-09-15 09:23:29,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-15 09:23:29,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-15 09:23:29,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-15 09:23:29,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-15 09:23:29,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2018-09-15 09:23:29,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 09:23:29,402 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-15 09:23:29,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-09-15 09:23:29,403 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-15 09:23:29,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-15 09:23:29,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-15 09:23:29,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-15 09:23:29,657 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 132 [2018-09-15 09:23:29,909 WARN L178 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 175 [2018-09-15 09:23:30,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-15 09:23:30,111 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 165 [2018-09-15 09:23:30,217 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-15 09:23:30,245 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 165 [2018-09-15 09:23:30,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-15 09:23:30,861 WARN L178 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 24 [2018-09-15 09:23:31,065 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 24 [2018-09-15 09:23:31,230 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 24 [2018-09-15 09:23:34,363 WARN L178 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 175 DAG size of output: 43 [2018-09-15 09:23:34,481 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 21 [2018-09-15 09:23:35,969 WARN L178 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 113 DAG size of output: 32 [2018-09-15 09:23:36,888 WARN L178 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 20 [2018-09-15 09:23:38,498 WARN L178 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 164 DAG size of output: 35 [2018-09-15 09:23:38,716 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 21 [2018-09-15 09:23:38,825 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 20 [2018-09-15 09:23:39,564 WARN L178 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 35 [2018-09-15 09:23:39,666 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 20 [2018-09-15 09:23:39,858 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 24 [2018-09-15 09:23:39,981 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 20 [2018-09-15 09:23:40,221 WARN L178 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 24 [2018-09-15 09:23:40,430 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 24 [2018-09-15 09:23:40,970 WARN L178 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 32 [2018-09-15 09:23:40,977 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-15 09:23:40,977 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-15 09:23:40,977 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-15 09:23:40,977 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-15 09:23:40,977 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-15 09:23:40,979 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-15 09:23:40,979 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 69) no Hoare annotation was computed. [2018-09-15 09:23:40,979 INFO L426 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-09-15 09:23:40,979 INFO L426 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2018-09-15 09:23:40,979 INFO L422 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 .cse1) (<= .cse1 2000000))) [2018-09-15 09:23:40,980 INFO L422 ceAbstractionStarter]: At program point L28-1(line 28) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 .cse1) (<= .cse1 2000000))) [2018-09-15 09:23:40,980 INFO L422 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (let ((.cse5 (* 2 main_~scheme~0))) (let ((.cse0 (<= (* 2 main_~urilen~0) 2000000)) (.cse1 (<= (+ main_~cp~0 2) main_~urilen~0)) (.cse2 (<= .cse5 2000000)) (.cse3 (<= 0 .cse5))) (or (and (and .cse0 .cse1 (= main_~c~0 0) .cse2 .cse3 (<= main_~tokenlen~0 (+ main_~c~0 1000000))) (<= 4 (* 2 main_~cp~0)) (<= 2 (+ main_~tokenlen~0 main_~c~0))) (let ((.cse4 (+ main_~c~0 2))) (and .cse0 .cse1 .cse2 (<= .cse4 main_~cp~0) (<= .cse4 main_~tokenlen~0) (<= (* 2 main_~tokenlen~0) 2000000) .cse3 (<= 2 (* 2 main_~c~0))))))) [2018-09-15 09:23:40,980 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-15 09:23:40,981 INFO L422 ceAbstractionStarter]: At program point L53-1(line 53) the Hoare annotation is: (let ((.cse5 (* 2 main_~scheme~0))) (let ((.cse0 (<= (* 2 main_~urilen~0) 2000000)) (.cse1 (<= (+ main_~cp~0 2) main_~urilen~0)) (.cse2 (<= .cse5 2000000)) (.cse3 (<= 0 .cse5))) (or (and (and .cse0 .cse1 (= main_~c~0 0) .cse2 .cse3 (<= main_~tokenlen~0 (+ main_~c~0 1000000))) (<= 4 (* 2 main_~cp~0)) (<= 2 (+ main_~tokenlen~0 main_~c~0))) (let ((.cse4 (+ main_~c~0 2))) (and .cse0 .cse1 .cse2 (<= .cse4 main_~cp~0) (<= .cse4 main_~tokenlen~0) (<= (* 2 main_~tokenlen~0) 2000000) .cse3 (<= 2 (* 2 main_~c~0))))))) [2018-09-15 09:23:40,981 INFO L426 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-09-15 09:23:40,981 INFO L426 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-09-15 09:23:40,981 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-15 09:23:40,981 INFO L426 ceAbstractionStarter]: For program point L21-1(lines 11 69) no Hoare annotation was computed. [2018-09-15 09:23:40,981 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 69) no Hoare annotation was computed. [2018-09-15 09:23:40,981 INFO L426 ceAbstractionStarter]: For program point L30(lines 30 66) no Hoare annotation was computed. [2018-09-15 09:23:40,982 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 69) the Hoare annotation is: true [2018-09-15 09:23:40,982 INFO L426 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2018-09-15 09:23:40,982 INFO L426 ceAbstractionStarter]: For program point L22(lines 11 69) no Hoare annotation was computed. [2018-09-15 09:23:40,982 INFO L426 ceAbstractionStarter]: For program point L55-1(lines 55 61) no Hoare annotation was computed. [2018-09-15 09:23:40,982 INFO L426 ceAbstractionStarter]: For program point L47(lines 47 65) no Hoare annotation was computed. [2018-09-15 09:23:40,983 INFO L422 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (let ((.cse7 (* 2 main_~scheme~0)) (.cse5 (* 2 main_~tokenlen~0)) (.cse0 (+ main_~cp~0 1))) (let ((.cse2 (* 2 main_~cp~0)) (.cse1 (<= .cse0 main_~urilen~0)) (.cse3 (<= .cse5 2000000)) (.cse4 (<= 0 .cse7)) (.cse6 (<= .cse7 2000000))) (or (and (<= main_~urilen~0 .cse0) .cse1 (<= .cse2 1999998) .cse3 .cse4 (<= 0 (+ .cse5 2000000)) (<= 3 (+ main_~urilen~0 main_~cp~0)) .cse6) (and (and (<= (* 2 main_~urilen~0) 2000000) (<= 2 .cse2) .cse1 .cse3 .cse4) (<= 2 .cse5) .cse6)))) [2018-09-15 09:23:40,983 INFO L422 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 .cse1) (<= .cse1 2000000))) [2018-09-15 09:23:40,984 INFO L422 ceAbstractionStarter]: At program point L31-1(line 31) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 .cse1) (<= .cse1 2000000))) [2018-09-15 09:23:40,984 INFO L426 ceAbstractionStarter]: For program point L23(lines 11 69) no Hoare annotation was computed. [2018-09-15 09:23:40,984 INFO L426 ceAbstractionStarter]: For program point L40(lines 30 66) no Hoare annotation was computed. [2018-09-15 09:23:40,985 INFO L422 ceAbstractionStarter]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (+ main_~c~0 1)) (.cse1 (* 2 main_~scheme~0))) (and (<= .cse0 main_~tokenlen~0) (<= .cse0 main_~cp~0) (<= (* 2 main_~urilen~0) 2000000) (<= (* 2 main_~tokenlen~0) 2000000) (<= .cse1 2000000) (<= 0 .cse1) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (* 2 main_~c~0)))) [2018-09-15 09:23:40,985 INFO L422 ceAbstractionStarter]: At program point L57-1(line 57) the Hoare annotation is: (let ((.cse0 (+ main_~c~0 1)) (.cse1 (* 2 main_~scheme~0))) (and (<= .cse0 main_~tokenlen~0) (<= .cse0 main_~cp~0) (<= (* 2 main_~urilen~0) 2000000) (<= (* 2 main_~tokenlen~0) 2000000) (<= .cse1 2000000) (<= 0 .cse1) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (* 2 main_~c~0)))) [2018-09-15 09:23:40,986 INFO L422 ceAbstractionStarter]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (* 2 main_~scheme~0))) (and (<= main_~tokenlen~0 (+ main_~c~0 1000000)) (= main_~c~0 0) (<= 2 (* 2 main_~tokenlen~0)) (<= .cse0 2000000) (<= 0 .cse0) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (+ main_~c~0 main_~cp~0)) (<= (+ main_~c~0 main_~urilen~0) 1000000))) [2018-09-15 09:23:40,986 INFO L422 ceAbstractionStarter]: At program point L49-1(line 49) the Hoare annotation is: (let ((.cse0 (* 2 main_~scheme~0))) (and (<= main_~tokenlen~0 (+ main_~c~0 1000000)) (= main_~c~0 0) (<= 2 (* 2 main_~tokenlen~0)) (<= .cse0 2000000) (<= 0 .cse0) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (+ main_~c~0 main_~cp~0)) (<= (+ main_~c~0 main_~urilen~0) 1000000))) [2018-09-15 09:23:40,986 INFO L426 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2018-09-15 09:23:40,986 INFO L422 ceAbstractionStarter]: At program point L33-2(lines 32 38) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= (+ main_~cp~0 1) main_~urilen~0) (<= 0 .cse1) (<= .cse1 2000000))) [2018-09-15 09:23:40,987 INFO L422 ceAbstractionStarter]: At program point L33-3(lines 33 38) the Hoare annotation is: (let ((.cse7 (* 2 main_~scheme~0)) (.cse5 (* 2 main_~tokenlen~0)) (.cse0 (+ main_~cp~0 1))) (let ((.cse2 (* 2 main_~cp~0)) (.cse1 (<= .cse0 main_~urilen~0)) (.cse3 (<= .cse5 2000000)) (.cse4 (<= 0 .cse7)) (.cse6 (<= .cse7 2000000))) (or (and (<= main_~urilen~0 .cse0) .cse1 (<= .cse2 1999998) .cse3 .cse4 (<= 0 (+ .cse5 2000000)) (<= 3 (+ main_~urilen~0 main_~cp~0)) .cse6) (and (and (<= (* 2 main_~urilen~0) 2000000) (<= 2 .cse2) .cse1 .cse3 .cse4) (<= 2 .cse5) .cse6)))) [2018-09-15 09:23:40,987 INFO L422 ceAbstractionStarter]: At program point L58(line 58) the Hoare annotation is: (let ((.cse0 (+ main_~c~0 1)) (.cse1 (* 2 main_~scheme~0))) (and (<= .cse0 main_~tokenlen~0) (<= .cse0 main_~cp~0) (<= (* 2 main_~urilen~0) 2000000) (<= (* 2 main_~tokenlen~0) 2000000) (<= .cse1 2000000) (<= 0 .cse1) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (* 2 main_~c~0)))) [2018-09-15 09:23:40,987 INFO L422 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= 0 .cse1) (<= .cse1 2000000) (<= (+ main_~cp~0 2) main_~urilen~0))) [2018-09-15 09:23:40,987 INFO L422 ceAbstractionStarter]: At program point L42-1(line 42) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= 0 .cse1) (<= .cse1 2000000) (<= (+ main_~cp~0 2) main_~urilen~0))) [2018-09-15 09:23:40,988 INFO L429 ceAbstractionStarter]: At program point L67(lines 11 69) the Hoare annotation is: true [2018-09-15 09:23:40,988 INFO L426 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-09-15 09:23:40,988 INFO L422 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: (let ((.cse0 (+ main_~c~0 1)) (.cse1 (* 2 main_~scheme~0))) (and (<= .cse0 main_~tokenlen~0) (<= .cse0 main_~cp~0) (<= (* 2 main_~urilen~0) 2000000) (<= (* 2 main_~tokenlen~0) 2000000) (<= .cse1 2000000) (<= 0 .cse1) (<= (+ main_~cp~0 2) main_~urilen~0) (<= 2 (* 2 main_~c~0)))) [2018-09-15 09:23:40,988 INFO L426 ceAbstractionStarter]: For program point L51(lines 51 63) no Hoare annotation was computed. [2018-09-15 09:23:40,988 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-15 09:23:40,989 INFO L422 ceAbstractionStarter]: At program point L51-2(lines 50 63) the Hoare annotation is: (let ((.cse4 (* 2 main_~cp~0)) (.cse5 (* 2 main_~tokenlen~0)) (.cse6 (* 2 main_~scheme~0))) (let ((.cse3 (+ main_~c~0 2)) (.cse0 (and (<= (* 2 main_~urilen~0) 2000000) (<= 2 .cse4) (<= (+ main_~cp~0 1) main_~urilen~0) (<= .cse5 2000000) (<= 0 .cse6))) (.cse2 (<= .cse6 2000000))) (or (and (let ((.cse1 (= main_~c~0 0))) (or (and .cse0 .cse1 .cse2 (<= .cse3 main_~tokenlen~0)) (and .cse0 (<= (+ main_~cp~0 2) main_~urilen~0) .cse1 .cse2))) (<= 4 .cse4) (<= 2 .cse5) (<= (+ main_~c~0 4) main_~urilen~0)) (and (<= .cse3 main_~cp~0) (<= (+ main_~c~0 1) main_~tokenlen~0) (and .cse0 .cse2) (<= 2 (* 2 main_~c~0)))))) [2018-09-15 09:23:40,989 INFO L426 ceAbstractionStarter]: For program point L43(lines 30 66) no Hoare annotation was computed. [2018-09-15 09:23:40,989 INFO L422 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= 0 .cse1) (<= .cse1 2000000) (<= (+ main_~cp~0 2) main_~urilen~0))) [2018-09-15 09:23:40,990 INFO L422 ceAbstractionStarter]: At program point L35-1(line 35) the Hoare annotation is: (let ((.cse0 (* 2 main_~tokenlen~0)) (.cse1 (* 2 main_~scheme~0))) (and (<= (* 2 main_~urilen~0) 2000000) (<= .cse0 2000000) (<= 2 (* 2 main_~cp~0)) (<= 2 .cse0) (<= 0 .cse1) (<= .cse1 2000000) (<= (+ main_~cp~0 2) main_~urilen~0))) [2018-09-15 09:23:40,990 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-15 09:23:40,990 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-15 09:23:40,990 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-15 09:23:40,990 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-15 09:23:40,990 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-15 09:23:40,991 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-15 09:23:41,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:23:41 BoogieIcfgContainer [2018-09-15 09:23:41,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 09:23:41,005 INFO L168 Benchmark]: Toolchain (without parser) took 32521.37 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -323.6 MB). Peak memory consumption was 870.3 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:41,006 INFO L168 Benchmark]: CDTParser took 0.17 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 09:23:41,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:41,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 09:23:41,008 INFO L168 Benchmark]: Boogie Preprocessor took 26.00 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 09:23:41,009 INFO L168 Benchmark]: RCFGBuilder took 675.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:41,010 INFO L168 Benchmark]: TraceAbstraction took 31483.34 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 354.9 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 445.9 MB). Peak memory consumption was 908.7 MB. Max. memory is 7.1 GB. [2018-09-15 09:23:41,015 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 304.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 25.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.00 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 675.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31483.34 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 354.9 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 445.9 MB). Peak memory consumption was 908.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((((((((((2 * urilen <= 2000000 && 2 <= 2 * cp) && cp + 1 <= urilen) && 2 * tokenlen <= 2000000) && 0 <= 2 * scheme) && c == 0) && 2 * scheme <= 2000000) && c + 2 <= tokenlen) || (((((((2 * urilen <= 2000000 && 2 <= 2 * cp) && cp + 1 <= urilen) && 2 * tokenlen <= 2000000) && 0 <= 2 * scheme) && cp + 2 <= urilen) && c == 0) && 2 * scheme <= 2000000)) && 4 <= 2 * cp) && 2 <= 2 * tokenlen) && c + 4 <= urilen) || (((c + 2 <= cp && c + 1 <= tokenlen) && ((((2 * urilen <= 2000000 && 2 <= 2 * cp) && cp + 1 <= urilen) && 2 * tokenlen <= 2000000) && 0 <= 2 * scheme) && 2 * scheme <= 2000000) && 2 <= 2 * c) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((2 * urilen <= 2000000 && 2 * tokenlen <= 2000000) && 2 <= 2 * cp) && 2 <= 2 * tokenlen) && cp + 1 <= urilen) && 0 <= 2 * scheme) && 2 * scheme <= 2000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. SAFE Result, 31.4s OverallTime, 6 OverallIterations, 21 TraceHistogramMax, 12.3s AutomataDifference, 0.0s DeadEndRemovalTime, 11.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 285 SDtfs, 1050 SDslu, 2112 SDs, 0 SdLazy, 2628 SolverSat, 1660 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 531 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1080 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.8s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9128135092420809 AbsIntWeakeningRatio, 0.4090909090909091 AbsIntAvgWeakeningVarsNumRemoved, 9.041125541125542 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 69 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 26 LocationsWithAnnotation, 94 PreInvPairs, 143 NumberOfFragments, 1044 HoareAnnotationTreeSize, 94 FomulaSimplifications, 17358 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 26 FomulaSimplificationsInter, 20596 FormulaSimplificationTreeSizeReductionInter, 10.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/apache-escape-absolute_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_09-23-41-033.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/apache-escape-absolute_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_09-23-41-033.csv Received shutdown request...