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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_3_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:03:39,546 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:03:39,548 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:03:39,561 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:03:39,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:03:39,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:03:39,564 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:03:39,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:03:39,568 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:03:39,569 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:03:39,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:03:39,570 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:03:39,571 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:03:39,572 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:03:39,573 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:03:39,574 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:03:39,575 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:03:39,577 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:03:39,579 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:03:39,580 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:03:39,582 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:03:39,583 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:03:39,585 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 21:03:39,586 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 21:03:39,586 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 21:03:39,587 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 21:03:39,588 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 21:03:39,588 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 21:03:39,589 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 21:03:39,590 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 21:03:39,591 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 21:03:39,591 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 21:03:39,591 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 21:03:39,592 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 21:03:39,593 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 21:03:39,593 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 21:03:39,594 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 21:03:39,610 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:03:39,610 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:03:39,611 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:03:39,611 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:03:39,612 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:03:39,612 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:03:39,612 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:03:39,612 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:03:39,612 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:03:39,613 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:03:39,613 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:03:39,614 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:03:39,614 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:03:39,614 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:03:39,614 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:03:39,614 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:03:39,615 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:03:39,615 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:03:39,615 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:03:39,615 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:03:39,615 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:03:39,616 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:03:39,616 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:03:39,616 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:39,616 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:03:39,616 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:03:39,617 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:03:39,617 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:03:39,617 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:03:39,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:03:39,618 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:03:39,618 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:03:39,618 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:03:39,668 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:03:39,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:03:39,697 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:03:39,699 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:03:39,699 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:03:39,700 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_3_true-unreach-call_false-termination.i [2018-09-15 21:03:40,061 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ae6908e/e69937dbc85343e6948d7be1e7e1e033/FLAGfe5f704e6 [2018-09-15 21:03:40,213 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:03:40,214 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3_true-unreach-call_false-termination.i [2018-09-15 21:03:40,220 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ae6908e/e69937dbc85343e6948d7be1e7e1e033/FLAGfe5f704e6 [2018-09-15 21:03:40,239 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ae6908e/e69937dbc85343e6948d7be1e7e1e033 [2018-09-15 21:03:40,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:03:40,253 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:03:40,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:40,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:03:40,263 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:03:40,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627e0d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40, skipping insertion in model container [2018-09-15 21:03:40,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,280 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:03:40,516 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:40,537 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:03:40,541 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:40,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40 WrapperNode [2018-09-15 21:03:40,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:40,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:40,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:03:40,555 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:03:40,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:40,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:03:40,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:03:40,579 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:03:40,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:03:40,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:03:40,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:03:40,601 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:03:40,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:03:40,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:03:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2018-09-15 21:03:40,672 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2018-09-15 21:03:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:03:40,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:03:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:03:40,673 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:03:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 21:03:40,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 21:03:40,931 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:03:40,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:40 BoogieIcfgContainer [2018-09-15 21:03:40,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:03:40,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:03:40,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:03:40,941 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:03:40,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:03:40" (1/3) ... [2018-09-15 21:03:40,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98bf19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:40, skipping insertion in model container [2018-09-15 21:03:40,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (2/3) ... [2018-09-15 21:03:40,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98bf19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:40, skipping insertion in model container [2018-09-15 21:03:40,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:40" (3/3) ... [2018-09-15 21:03:40,945 INFO L112 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_3_true-unreach-call_false-termination.i [2018-09-15 21:03:40,969 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:03:40,980 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:03:41,073 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:03:41,074 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:03:41,075 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:03:41,075 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:03:41,075 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:03:41,075 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:03:41,076 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:03:41,076 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:03:41,076 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:03:41,097 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-09-15 21:03:41,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-15 21:03:41,105 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:41,106 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:41,107 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:41,119 INFO L82 PathProgramCache]: Analyzing trace with hash -337279170, now seen corresponding path program 1 times [2018-09-15 21:03:41,122 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:41,123 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-15 21:03:41,126 INFO L202 CegarAbsIntRunner]: [0], [1], [30], [35], [38], [40], [46], [47], [48], [54] [2018-09-15 21:03:41,167 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:41,167 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:41,243 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:41,245 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-15 21:03:41,263 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:41,313 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 21:03:41,314 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:41,353 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:41,354 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:41,355 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:03:41,355 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:41,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:03:41,365 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:03:41,366 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:41,369 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2018-09-15 21:03:41,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:41,400 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2018-09-15 21:03:41,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:03:41,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-15 21:03:41,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:41,411 INFO L225 Difference]: With dead ends: 39 [2018-09-15 21:03:41,411 INFO L226 Difference]: Without dead ends: 19 [2018-09-15 21:03:41,415 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:41,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-15 21:03:41,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-09-15 21:03:41,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-15 21:03:41,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-09-15 21:03:41,453 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2018-09-15 21:03:41,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:41,454 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-09-15 21:03:41,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:03:41,454 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-09-15 21:03:41,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-15 21:03:41,455 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:41,455 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:41,456 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:41,456 INFO L82 PathProgramCache]: Analyzing trace with hash 672764537, now seen corresponding path program 1 times [2018-09-15 21:03:41,457 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:41,457 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-15 21:03:41,457 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [10], [14], [20], [26], [35], [38], [40], [46], [47], [48], [50], [51], [52] [2018-09-15 21:03:41,459 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:41,459 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:41,495 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:41,496 INFO L272 AbstractInterpreter]: Visited 15 different actions 15 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-15 21:03:41,503 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:41,537 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 83.97% of their original sizes. [2018-09-15 21:03:41,537 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:41,585 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:41,587 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:41,587 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-15 21:03:41,587 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:41,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-15 21:03:41,588 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-15 21:03:41,588 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-15 21:03:41,589 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 5 states. [2018-09-15 21:03:41,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:41,660 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-09-15 21:03:41,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-15 21:03:41,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-09-15 21:03:41,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:41,661 INFO L225 Difference]: With dead ends: 19 [2018-09-15 21:03:41,661 INFO L226 Difference]: Without dead ends: 0 [2018-09-15 21:03:41,664 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-15 21:03:41,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-15 21:03:41,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-15 21:03:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-15 21:03:41,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-15 21:03:41,671 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-09-15 21:03:41,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:41,671 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-15 21:03:41,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-15 21:03:41,671 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-15 21:03:41,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-15 21:03:41,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-15 21:03:41,858 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-15 21:03:41,859 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-15 21:03:41,859 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-15 21:03:41,859 INFO L422 ceAbstractionStarter]: At program point evalENTRY(lines 12 19) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= ~x~0 0)) [2018-09-15 21:03:41,859 INFO L426 ceAbstractionStarter]: For program point L14(lines 14 17) no Hoare annotation was computed. [2018-09-15 21:03:41,859 INFO L426 ceAbstractionStarter]: For program point evalEXIT(lines 12 19) no Hoare annotation was computed. [2018-09-15 21:03:41,860 INFO L426 ceAbstractionStarter]: For program point L14-2(lines 12 19) no Hoare annotation was computed. [2018-09-15 21:03:41,860 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-15 21:03:41,860 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~x~0 0) [2018-09-15 21:03:41,860 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-15 21:03:41,860 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-15 21:03:41,860 INFO L426 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-09-15 21:03:41,861 INFO L422 ceAbstractionStarter]: At program point L27(lines 22 33) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= ~x~0 0)) [2018-09-15 21:03:41,863 INFO L422 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= ~x~0 0)) [2018-09-15 21:03:41,863 INFO L422 ceAbstractionStarter]: At program point L26-1(line 26) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= ~x~0 0)) [2018-09-15 21:03:41,863 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 22 33) no Hoare annotation was computed. [2018-09-15 21:03:41,863 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-09-15 21:03:41,863 INFO L422 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (not (= 0 |old(~x~0)|)) [2018-09-15 21:03:41,864 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 22 33) no Hoare annotation was computed. [2018-09-15 21:03:41,864 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-15 21:03:41,864 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-15 21:03:41,864 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-15 21:03:41,866 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-15 21:03:41,866 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-15 21:03:41,866 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-15 21:03:41,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:03:41 BoogieIcfgContainer [2018-09-15 21:03:41,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 21:03:41,871 INFO L168 Benchmark]: Toolchain (without parser) took 1620.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -730.7 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:41,873 INFO L168 Benchmark]: CDTParser took 0.24 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 21:03:41,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.30 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 21:03:41,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.15 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 21:03:41,876 INFO L168 Benchmark]: Boogie Preprocessor took 22.13 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 21:03:41,877 INFO L168 Benchmark]: RCFGBuilder took 334.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:41,879 INFO L168 Benchmark]: TraceAbstraction took 933.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:41,887 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 299.30 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 23.15 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 22.13 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 334.60 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 933.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 58.8 MB). Peak memory consumption was 58.8 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 29 SDslu, 27 SDs, 0 SdLazy, 5 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9444444444444443 AbsIntWeakeningRatio, 0.2916666666666667 AbsIntAvgWeakeningVarsNumRemoved, 0.6666666666666666 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 42 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.1s 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/while_infinite_loop_3_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_21-03-41-910.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/while_infinite_loop_3_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_21-03-41-910.csv Received shutdown request...