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_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 06:50:59,544 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 06:50:59,547 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 06:50:59,559 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 06:50:59,559 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 06:50:59,560 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 06:50:59,562 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 06:50:59,564 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 06:50:59,565 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 06:50:59,566 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 06:50:59,567 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 06:50:59,568 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 06:50:59,569 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 06:50:59,570 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 06:50:59,571 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 06:50:59,572 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 06:50:59,573 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 06:50:59,575 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 06:50:59,577 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 06:50:59,579 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 06:50:59,580 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 06:50:59,581 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 06:50:59,584 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 06:50:59,584 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 06:50:59,585 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 06:50:59,586 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 06:50:59,587 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 06:50:59,588 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 06:50:59,589 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 06:50:59,590 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 06:50:59,590 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 06:50:59,591 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 06:50:59,594 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-09-19 06:50:59,624 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 06:50:59,624 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 06:50:59,625 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 06:50:59,626 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 06:50:59,626 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 06:50:59,626 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 06:50:59,626 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 06:50:59,627 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 06:50:59,627 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-09-19 06:50:59,627 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 06:50:59,627 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 06:50:59,628 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 06:50:59,628 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 06:50:59,629 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 06:50:59,629 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 06:50:59,629 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 06:50:59,629 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 06:50:59,630 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 06:50:59,630 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 06:50:59,630 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 06:50:59,630 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 06:50:59,631 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 06:50:59,631 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 06:50:59,631 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 06:50:59,631 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 06:50:59,632 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 06:50:59,632 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 06:50:59,632 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 06:50:59,632 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 06:50:59,632 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 06:50:59,633 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 06:50:59,633 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 06:50:59,634 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 06:50:59,634 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 06:50:59,634 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 06:50:59,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 06:50:59,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 06:50:59,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 06:50:59,720 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 06:50:59,721 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 06:50:59,722 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-09-19 06:51:00,122 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d72548e0/b13a13370ffa4941ae490f061656acb3/FLAGd0aa26518 [2018-09-19 06:51:00,254 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 06:51:00,255 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-09-19 06:51:00,261 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d72548e0/b13a13370ffa4941ae490f061656acb3/FLAGd0aa26518 [2018-09-19 06:51:00,278 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d72548e0/b13a13370ffa4941ae490f061656acb3 [2018-09-19 06:51:00,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 06:51:00,292 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 06:51:00,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 06:51:00,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 06:51:00,301 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 06:51:00,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:51:00" (1/1) ... [2018-09-19 06:51:00,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf4fa99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00, skipping insertion in model container [2018-09-19 06:51:00,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:51:00" (1/1) ... [2018-09-19 06:51:00,318 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 06:51:00,513 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:51:00,530 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 06:51:00,539 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:51:00,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00 WrapperNode [2018-09-19 06:51:00,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 06:51:00,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 06:51:00,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 06:51:00,560 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 06:51:00,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00" (1/1) ... [2018-09-19 06:51:00,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00" (1/1) ... [2018-09-19 06:51:00,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 06:51:00,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 06:51:00,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 06:51:00,586 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 06:51:00,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00" (1/1) ... [2018-09-19 06:51:00,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00" (1/1) ... [2018-09-19 06:51:00,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00" (1/1) ... [2018-09-19 06:51:00,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00" (1/1) ... [2018-09-19 06:51:00,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00" (1/1) ... [2018-09-19 06:51:00,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00" (1/1) ... [2018-09-19 06:51:00,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00" (1/1) ... [2018-09-19 06:51:00,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 06:51:00,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 06:51:00,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 06:51:00,618 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 06:51:00,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 06:51:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 06:51:00,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 06:51:00,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 06:51:00,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 06:51:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 06:51:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 06:51:00,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 06:51:00,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 06:51:01,032 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 06:51:01,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:51:01 BoogieIcfgContainer [2018-09-19 06:51:01,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 06:51:01,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 06:51:01,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 06:51:01,038 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 06:51:01,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 06:51:00" (1/3) ... [2018-09-19 06:51:01,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b7e5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:51:01, skipping insertion in model container [2018-09-19 06:51:01,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:51:00" (2/3) ... [2018-09-19 06:51:01,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b7e5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:51:01, skipping insertion in model container [2018-09-19 06:51:01,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:51:01" (3/3) ... [2018-09-19 06:51:01,042 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call3_true-termination.i [2018-09-19 06:51:01,054 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 06:51:01,062 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 06:51:01,125 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 06:51:01,126 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 06:51:01,126 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 06:51:01,126 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 06:51:01,126 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 06:51:01,127 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 06:51:01,127 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 06:51:01,127 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 06:51:01,127 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 06:51:01,160 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-09-19 06:51:01,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-19 06:51:01,168 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:51:01,169 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:51:01,171 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:51:01,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1650809888, now seen corresponding path program 1 times [2018-09-19 06:51:01,180 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:51:01,181 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-19 06:51:01,185 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [19], [37], [41], [44], [46], [52], [53], [54], [56] [2018-09-19 06:51:01,219 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-19 06:51:01,219 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:51:01,284 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:51:01,286 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-19 06:51:01,302 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:51:01,341 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-19 06:51:01,341 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:51:01,343 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:51:01,344 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:51:01,345 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 06:51:01,345 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:51:01,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 06:51:01,355 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 06:51:01,356 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 06:51:01,358 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-09-19 06:51:01,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:51:01,380 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2018-09-19 06:51:01,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 06:51:01,382 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-09-19 06:51:01,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:51:01,390 INFO L225 Difference]: With dead ends: 40 [2018-09-19 06:51:01,391 INFO L226 Difference]: Without dead ends: 18 [2018-09-19 06:51:01,394 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 06:51:01,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-19 06:51:01,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-09-19 06:51:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-19 06:51:01,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-09-19 06:51:01,432 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2018-09-19 06:51:01,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:51:01,433 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-09-19 06:51:01,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 06:51:01,433 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-09-19 06:51:01,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-19 06:51:01,434 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:51:01,434 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:51:01,435 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:51:01,435 INFO L82 PathProgramCache]: Analyzing trace with hash 985779568, now seen corresponding path program 1 times [2018-09-19 06:51:01,435 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:51:01,436 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-19 06:51:01,436 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [19], [23], [26], [41], [44], [46], [52], [53], [54], [56] [2018-09-19 06:51:01,437 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-19 06:51:01,437 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:51:01,448 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:51:01,449 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-19 06:51:01,479 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:51:01,487 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-19 06:51:01,488 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:51:01,493 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:51:01,494 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:51:01,494 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 06:51:01,494 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:51:01,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 06:51:01,495 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 06:51:01,495 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 06:51:01,496 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-09-19 06:51:01,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:51:01,613 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2018-09-19 06:51:01,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 06:51:01,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-19 06:51:01,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:51:01,616 INFO L225 Difference]: With dead ends: 36 [2018-09-19 06:51:01,617 INFO L226 Difference]: Without dead ends: 26 [2018-09-19 06:51:01,619 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 06:51:01,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-09-19 06:51:01,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2018-09-19 06:51:01,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-09-19 06:51:01,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2018-09-19 06:51:01,626 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2018-09-19 06:51:01,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:51:01,627 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2018-09-19 06:51:01,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 06:51:01,627 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-09-19 06:51:01,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-19 06:51:01,628 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:51:01,628 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:51:01,630 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:51:01,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1820013554, now seen corresponding path program 1 times [2018-09-19 06:51:01,631 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:51:01,631 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-19 06:51:01,631 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [13], [15], [19], [23], [26], [41], [44], [46], [52], [53], [54], [56] [2018-09-19 06:51:01,633 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-19 06:51:01,633 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:51:01,652 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 06:51:01,652 INFO L272 AbstractInterpreter]: Visited 16 different actions 20 times. Merged at 3 different actions 3 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2018-09-19 06:51:01,688 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 06:51:01,707 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 06:51:01,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 06:51:01 BoogieIcfgContainer [2018-09-19 06:51:01,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 06:51:01,709 INFO L168 Benchmark]: Toolchain (without parser) took 1418.57 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -734.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 06:51:01,711 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 06:51:01,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.12 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. [2018-09-19 06:51:01,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.43 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 06:51:01,713 INFO L168 Benchmark]: Boogie Preprocessor took 28.61 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 06:51:01,713 INFO L168 Benchmark]: RCFGBuilder took 415.86 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -779.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-19 06:51:01,715 INFO L168 Benchmark]: TraceAbstraction took 673.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2018-09-19 06:51:01,720 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 265.12 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 25.43 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 28.61 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 415.86 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -779.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 673.34 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L10] int A[1024]; [L11] int i; [L13] i = 0 [L13] COND TRUE i < 1024 [L14] A[i] = __VERIFIER_nondet_int() [L13] i++ [L13] i++ [L13] COND FALSE !(i < 1024) [L17] i = 0 [L17] COND FALSE !(A[i] != 0) [L22] CALL __VERIFIER_assert(i <= 1024) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. UNKNOWN Result, 0.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 SDtfs, 5 SDslu, 10 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.4166666666666667 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array_true-unreach-call3_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_06-51-01-737.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/array_true-unreach-call3_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_06-51-01-737.csv Received shutdown request...