java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-get-tag_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 16:06:16,489 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 16:06:16,491 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 16:06:16,507 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 16:06:16,507 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 16:06:16,508 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 16:06:16,509 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 16:06:16,511 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 16:06:16,513 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 16:06:16,514 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 16:06:16,515 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 16:06:16,515 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 16:06:16,516 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 16:06:16,517 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 16:06:16,518 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 16:06:16,519 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 16:06:16,520 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 16:06:16,522 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 16:06:16,527 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 16:06:16,532 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 16:06:16,533 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 16:06:16,536 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 16:06:16,539 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 16:06:16,540 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 16:06:16,540 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 16:06:16,541 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 16:06:16,542 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 16:06:16,543 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 16:06:16,544 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 16:06:16,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 16:06:16,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 16:06:16,545 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-22 16:06:16,548 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-22 16:06:16,563 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 16:06:16,563 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 16:06:16,564 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 16:06:16,564 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 16:06:16,565 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 16:06:16,565 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 16:06:16,565 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 16:06:16,565 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 16:06:16,565 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-22 16:06:16,566 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 16:06:16,566 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 16:06:16,566 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 16:06:16,567 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 16:06:16,567 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 16:06:16,567 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 16:06:16,567 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 16:06:16,567 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 16:06:16,568 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 16:06:16,568 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 16:06:16,568 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 16:06:16,568 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 16:06:16,568 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 16:06:16,569 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 16:06:16,569 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 16:06:16,569 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 16:06:16,569 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 16:06:16,569 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 16:06:16,570 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 16:06:16,570 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 16:06:16,570 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 16:06:16,570 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 16:06:16,570 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 16:06:16,571 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 16:06:16,571 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-22 16:06:16,620 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 16:06:16,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 16:06:16,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 16:06:16,639 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 16:06:16,639 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 16:06:16,640 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag_true-unreach-call_true-termination.i [2018-10-22 16:06:16,700 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2dab5c335/372509c2fa7541799363466f1e0a69a5/FLAG940ed75b0 [2018-10-22 16:06:17,183 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 16:06:17,184 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag_true-unreach-call_true-termination.i [2018-10-22 16:06:17,191 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2dab5c335/372509c2fa7541799363466f1e0a69a5/FLAG940ed75b0 [2018-10-22 16:06:17,207 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2dab5c335/372509c2fa7541799363466f1e0a69a5 [2018-10-22 16:06:17,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 16:06:17,221 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 16:06:17,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 16:06:17,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 16:06:17,225 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 16:06:17,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 04:06:17" (1/1) ... [2018-10-22 16:06:17,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180ddc52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17, skipping insertion in model container [2018-10-22 16:06:17,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 04:06:17" (1/1) ... [2018-10-22 16:06:17,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 16:06:17,261 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 16:06:17,449 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 16:06:17,456 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 16:06:17,491 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 16:06:17,515 INFO L193 MainTranslator]: Completed translation [2018-10-22 16:06:17,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17 WrapperNode [2018-10-22 16:06:17,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 16:06:17,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 16:06:17,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 16:06:17,517 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 16:06:17,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17" (1/1) ... [2018-10-22 16:06:17,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17" (1/1) ... [2018-10-22 16:06:17,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 16:06:17,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 16:06:17,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 16:06:17,545 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 16:06:17,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17" (1/1) ... [2018-10-22 16:06:17,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17" (1/1) ... [2018-10-22 16:06:17,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17" (1/1) ... [2018-10-22 16:06:17,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17" (1/1) ... [2018-10-22 16:06:17,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17" (1/1) ... [2018-10-22 16:06:17,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17" (1/1) ... [2018-10-22 16:06:17,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17" (1/1) ... [2018-10-22 16:06:17,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 16:06:17,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 16:06:17,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 16:06:17,596 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 16:06:17,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 16:06:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 16:06:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 16:06:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 16:06:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 16:06:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 16:06:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 16:06:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 16:06:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 16:06:18,262 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 16:06:18,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:06:18 BoogieIcfgContainer [2018-10-22 16:06:18,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 16:06:18,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 16:06:18,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 16:06:18,267 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 16:06:18,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 04:06:17" (1/3) ... [2018-10-22 16:06:18,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588e3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 04:06:18, skipping insertion in model container [2018-10-22 16:06:18,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:06:17" (2/3) ... [2018-10-22 16:06:18,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588e3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 04:06:18, skipping insertion in model container [2018-10-22 16:06:18,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:06:18" (3/3) ... [2018-10-22 16:06:18,271 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-get-tag_true-unreach-call_true-termination.i [2018-10-22 16:06:18,283 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 16:06:18,295 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 16:06:18,316 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 16:06:18,357 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 16:06:18,358 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 16:06:18,358 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 16:06:18,359 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 16:06:18,359 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 16:06:18,359 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 16:06:18,359 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 16:06:18,359 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 16:06:18,360 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 16:06:18,383 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-10-22 16:06:18,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-22 16:06:18,389 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:06:18,391 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:06:18,393 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:06:18,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:06:18,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1656305570, now seen corresponding path program 1 times [2018-10-22 16:06:18,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:06:18,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:06:18,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:06:18,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:06:18,453 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:06:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:06:18,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 16:06:18,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 16:06:18,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 16:06:18,524 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:06:18,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 16:06:18,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 16:06:18,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 16:06:18,549 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-10-22 16:06:18,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:06:18,585 INFO L93 Difference]: Finished difference Result 91 states and 160 transitions. [2018-10-22 16:06:18,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 16:06:18,586 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-10-22 16:06:18,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:06:18,599 INFO L225 Difference]: With dead ends: 91 [2018-10-22 16:06:18,599 INFO L226 Difference]: Without dead ends: 44 [2018-10-22 16:06:18,604 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 16:06:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-22 16:06:18,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-10-22 16:06:18,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-22 16:06:18,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2018-10-22 16:06:18,655 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 12 [2018-10-22 16:06:18,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:06:18,655 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2018-10-22 16:06:18,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 16:06:18,656 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2018-10-22 16:06:18,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-22 16:06:18,657 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:06:18,657 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:06:18,658 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:06:18,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:06:18,658 INFO L82 PathProgramCache]: Analyzing trace with hash -145433870, now seen corresponding path program 1 times [2018-10-22 16:06:18,658 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:06:18,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:06:18,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:06:18,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:06:18,662 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:06:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:06:18,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 16:06:18,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 16:06:18,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-22 16:06:18,787 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:06:18,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 16:06:18,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 16:06:18,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 16:06:18,790 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. Second operand 5 states. [2018-10-22 16:06:19,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:06:19,291 INFO L93 Difference]: Finished difference Result 50 states and 67 transitions. [2018-10-22 16:06:19,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 16:06:19,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-10-22 16:06:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:06:19,294 INFO L225 Difference]: With dead ends: 50 [2018-10-22 16:06:19,295 INFO L226 Difference]: Without dead ends: 48 [2018-10-22 16:06:19,296 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-22 16:06:19,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-10-22 16:06:19,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-10-22 16:06:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-22 16:06:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2018-10-22 16:06:19,312 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 14 [2018-10-22 16:06:19,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:06:19,312 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2018-10-22 16:06:19,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 16:06:19,313 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2018-10-22 16:06:19,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-22 16:06:19,314 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:06:19,314 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:06:19,314 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:06:19,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:06:19,315 INFO L82 PathProgramCache]: Analyzing trace with hash 840682065, now seen corresponding path program 1 times [2018-10-22 16:06:19,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:06:19,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:06:19,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:06:19,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:06:19,316 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:06:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:06:19,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 16:06:19,503 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 16:06:19,503 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 16:06:19,504 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-10-22 16:06:19,506 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [15], [21], [24], [98], [101], [103], [106], [108], [109], [110], [111], [113], [114], [115] [2018-10-22 16:06:19,552 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 16:06:19,553 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 16:06:19,695 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-22 16:06:19,697 INFO L272 AbstractInterpreter]: Visited 17 different actions 21 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-10-22 16:06:19,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:06:19,707 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-22 16:06:19,816 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 75% of their original sizes. [2018-10-22 16:06:19,817 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-22 16:06:19,977 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-22 16:06:19,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 16:06:19,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2018-10-22 16:06:19,979 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:06:19,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-22 16:06:19,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-22 16:06:19,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-22 16:06:19,980 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 8 states. [2018-10-22 16:06:21,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:06:21,601 INFO L93 Difference]: Finished difference Result 70 states and 92 transitions. [2018-10-22 16:06:21,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-22 16:06:21,602 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-10-22 16:06:21,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:06:21,604 INFO L225 Difference]: With dead ends: 70 [2018-10-22 16:06:21,604 INFO L226 Difference]: Without dead ends: 66 [2018-10-22 16:06:21,605 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-22 16:06:21,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-10-22 16:06:21,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-10-22 16:06:21,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-10-22 16:06:21,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 84 transitions. [2018-10-22 16:06:21,626 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 84 transitions. Word has length 19 [2018-10-22 16:06:21,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:06:21,627 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 84 transitions. [2018-10-22 16:06:21,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-22 16:06:21,627 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 84 transitions. [2018-10-22 16:06:21,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-22 16:06:21,633 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:06:21,633 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:06:21,637 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:06:21,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:06:21,637 INFO L82 PathProgramCache]: Analyzing trace with hash 2142997440, now seen corresponding path program 1 times [2018-10-22 16:06:21,638 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:06:21,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:06:21,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:06:21,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:06:21,640 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:06:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:06:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-22 16:06:21,749 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 16:06:21,749 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 16:06:21,749 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-10-22 16:06:21,750 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [15], [21], [24], [28], [33], [36], [98], [101], [103], [106], [108], [109], [110], [111], [113], [114], [115], [117], [118], [119], [120] [2018-10-22 16:06:21,752 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 16:06:21,753 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 16:06:21,994 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-22 16:06:21,994 INFO L272 AbstractInterpreter]: Visited 24 different actions 239 times. Merged at 9 different actions 63 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 6 variables. [2018-10-22 16:06:22,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:06:22,038 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-22 16:06:22,090 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 80% of their original sizes. [2018-10-22 16:06:22,090 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-22 16:06:22,224 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-22 16:06:22,225 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 16:06:22,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2018-10-22 16:06:22,226 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:06:22,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-22 16:06:22,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-22 16:06:22,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-10-22 16:06:22,228 INFO L87 Difference]: Start difference. First operand 64 states and 84 transitions. Second operand 10 states. [2018-10-22 16:06:23,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:06:23,701 INFO L93 Difference]: Finished difference Result 64 states and 84 transitions. [2018-10-22 16:06:23,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-22 16:06:23,701 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-10-22 16:06:23,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:06:23,702 INFO L225 Difference]: With dead ends: 64 [2018-10-22 16:06:23,702 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 16:06:23,703 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-10-22 16:06:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 16:06:23,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 16:06:23,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 16:06:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 16:06:23,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-10-22 16:06:23,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:06:23,705 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 16:06:23,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-22 16:06:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 16:06:23,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 16:06:23,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 16:06:24,727 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 11 [2018-10-22 16:06:24,795 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-22 16:06:24,795 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 16:06:24,795 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 16:06:24,795 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 16:06:24,795 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 16:06:24,795 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 16:06:24,796 INFO L421 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= (* 2 main_~tagbuf_len~0) 4294967292) (<= 0 main_~t~0)) [2018-10-22 16:06:24,796 INFO L428 ceAbstractionStarter]: At program point L60(lines 11 63) the Hoare annotation is: true [2018-10-22 16:06:24,796 INFO L421 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= (* 2 main_~tagbuf_len~0) 4294967292) (<= 0 main_~t~0)) [2018-10-22 16:06:24,796 INFO L421 ceAbstractionStarter]: At program point L27-1(line 27) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= (* 2 main_~tagbuf_len~0) 4294967292) (<= 0 main_~t~0)) [2018-10-22 16:06:24,796 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 63) no Hoare annotation was computed. [2018-10-22 16:06:24,796 INFO L425 ceAbstractionStarter]: For program point L56(line 56) no Hoare annotation was computed. [2018-10-22 16:06:24,797 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 54) no Hoare annotation was computed. [2018-10-22 16:06:24,797 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-10-22 16:06:24,797 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-22 16:06:24,797 INFO L425 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-10-22 16:06:24,797 INFO L425 ceAbstractionStarter]: For program point L40(lines 40 54) no Hoare annotation was computed. [2018-10-22 16:06:24,797 INFO L421 ceAbstractionStarter]: At program point L40-1(lines 40 54) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= (* 2 main_~tagbuf_len~0) 4294967292) (<= 0 main_~t~0)) [2018-10-22 16:06:24,798 INFO L421 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (let ((.cse0 (* 2 main_~tagbuf_len~0))) (and (<= .cse0 4294967292) (<= main_~t~0 main_~tagbuf_len~0) (<= main_~tagbuf_len~0 main_~t~0) (<= 2 .cse0))) [2018-10-22 16:06:24,798 INFO L421 ceAbstractionStarter]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse0 (* 2 main_~tagbuf_len~0))) (and (<= .cse0 4294967292) (<= main_~t~0 main_~tagbuf_len~0) (<= main_~tagbuf_len~0 main_~t~0) (<= 2 .cse0))) [2018-10-22 16:06:24,798 INFO L425 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-10-22 16:06:24,798 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-10-22 16:06:24,798 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2018-10-22 16:06:24,798 INFO L421 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (* 2 main_~tagbuf_len~0))) (and (<= .cse0 4294967292) (<= main_~t~0 main_~tagbuf_len~0) (<= main_~tagbuf_len~0 main_~t~0) (<= 0 .cse0))) [2018-10-22 16:06:24,798 INFO L421 ceAbstractionStarter]: At program point L20-1(line 20) the Hoare annotation is: (let ((.cse0 (* 2 main_~tagbuf_len~0))) (and (<= .cse0 4294967292) (<= main_~t~0 main_~tagbuf_len~0) (<= main_~tagbuf_len~0 main_~t~0) (<= 0 .cse0))) [2018-10-22 16:06:24,799 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 49) no Hoare annotation was computed. [2018-10-22 16:06:24,799 INFO L425 ceAbstractionStarter]: For program point L41(lines 41 50) no Hoare annotation was computed. [2018-10-22 16:06:24,799 INFO L421 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: (let ((.cse0 (* 2 main_~tagbuf_len~0))) (and (<= .cse0 4294967292) (<= main_~t~0 main_~tagbuf_len~0) (<= main_~tagbuf_len~0 main_~t~0) (<= 2 .cse0))) [2018-10-22 16:06:24,799 INFO L421 ceAbstractionStarter]: At program point L46-1(line 46) the Hoare annotation is: (let ((.cse0 (* 2 main_~tagbuf_len~0))) (and (<= .cse0 4294967292) (<= main_~t~0 main_~tagbuf_len~0) (<= main_~tagbuf_len~0 main_~t~0) (<= 2 .cse0))) [2018-10-22 16:06:24,799 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 63) no Hoare annotation was computed. [2018-10-22 16:06:24,799 INFO L421 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= (* 2 main_~tagbuf_len~0) 4294967292) (<= 0 main_~t~0)) [2018-10-22 16:06:24,799 INFO L421 ceAbstractionStarter]: At program point L42-1(line 42) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= (* 2 main_~tagbuf_len~0) 4294967292) (<= 0 main_~t~0)) [2018-10-22 16:06:24,800 INFO L425 ceAbstractionStarter]: For program point L34-1(lines 34 58) no Hoare annotation was computed. [2018-10-22 16:06:24,800 INFO L421 ceAbstractionStarter]: At program point L34-3(lines 34 58) the Hoare annotation is: (let ((.cse0 (* 2 main_~tagbuf_len~0))) (and (<= .cse0 4294967292) (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0) (<= 2 .cse0))) [2018-10-22 16:06:24,800 INFO L421 ceAbstractionStarter]: At program point L34-4(lines 34 58) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= (* 2 main_~tagbuf_len~0) 4294967292) (<= 0 main_~t~0)) [2018-10-22 16:06:24,800 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 63) the Hoare annotation is: true [2018-10-22 16:06:24,800 INFO L421 ceAbstractionStarter]: At program point L59(line 59) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= (* 2 main_~tagbuf_len~0) 4294967292) (<= 0 main_~t~0)) [2018-10-22 16:06:24,800 INFO L421 ceAbstractionStarter]: At program point L55(line 55) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= (* 2 main_~tagbuf_len~0) 4294967292) (<= 0 main_~t~0)) [2018-10-22 16:06:24,801 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 30) no Hoare annotation was computed. [2018-10-22 16:06:24,801 INFO L421 ceAbstractionStarter]: At program point L18-3(lines 18 30) the Hoare annotation is: (and (<= (* 2 main_~tagbuf_len~0) 4294967292) (<= main_~t~0 main_~tagbuf_len~0) (<= 0 main_~t~0)) [2018-10-22 16:06:24,801 INFO L421 ceAbstractionStarter]: At program point L18-4(lines 18 30) the Hoare annotation is: (and (<= (+ main_~t~0 1) main_~tagbuf_len~0) (<= (* 2 main_~tagbuf_len~0) 4294967292) (<= 0 main_~t~0)) [2018-10-22 16:06:24,801 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-10-22 16:06:24,801 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-10-22 16:06:24,801 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-22 16:06:24,802 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 16:06:24,802 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-22 16:06:24,802 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 16:06:24,802 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 16:06:24,802 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-22 16:06:24,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 04:06:24 BoogieIcfgContainer [2018-10-22 16:06:24,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 16:06:24,814 INFO L168 Benchmark]: Toolchain (without parser) took 7594.54 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -427.3 MB). Peak memory consumption was 296.7 MB. Max. memory is 7.1 GB. [2018-10-22 16:06:24,816 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-22 16:06:24,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.12 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. [2018-10-22 16:06:24,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.97 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. [2018-10-22 16:06:24,818 INFO L168 Benchmark]: Boogie Preprocessor took 50.99 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. [2018-10-22 16:06:24,818 INFO L168 Benchmark]: RCFGBuilder took 667.13 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-10-22 16:06:24,820 INFO L168 Benchmark]: TraceAbstraction took 6549.93 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 337.9 MB). Peak memory consumption was 337.9 MB. Max. memory is 7.1 GB. [2018-10-22 16:06:24,825 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 295.12 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 26.97 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 50.99 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 667.13 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6549.93 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 337.9 MB). Peak memory consumption was 337.9 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: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (2 * tagbuf_len <= 4294967292 && t <= tagbuf_len) && 0 <= t - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((2 * tagbuf_len <= 4294967292 && t <= tagbuf_len) && 0 <= t) && 2 <= 2 * tagbuf_len - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 49 locations, 1 error locations. SAFE Result, 6.4s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 201 SDtfs, 139 SDslu, 359 SDs, 0 SdLazy, 169 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.8986928104575163 AbsIntWeakeningRatio, 0.4117647058823529 AbsIntAvgWeakeningVarsNumRemoved, 1.9607843137254901 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 61 PreInvPairs, 87 NumberOfFragments, 277 HoareAnnotationTreeSize, 61 FomulaSimplifications, 304 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 24 FomulaSimplificationsInter, 773 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 3287 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 12/23 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...