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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call3_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:23,213 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:23,216 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:23,228 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:23,228 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:23,229 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:23,230 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:23,232 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:23,234 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:23,235 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:23,236 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:23,236 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:23,237 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:23,238 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:23,239 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:23,240 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:23,241 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:23,243 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:23,245 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:23,247 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:23,248 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:23,250 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:23,252 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:01:23,252 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:01:23,252 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:01:23,254 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:01:23,254 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:01:23,255 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:01:23,256 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:01:23,257 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:01:23,258 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:01:23,258 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 08:01:23,261 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 08:01:23,285 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:23,285 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:23,287 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:23,287 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:23,287 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:23,287 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:23,288 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:23,288 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:23,288 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:23,288 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:23,288 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:23,292 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:23,292 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:23,293 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:23,293 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:23,294 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:23,295 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:23,295 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:23,295 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:23,295 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:23,295 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:23,296 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:23,296 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:23,296 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:23,296 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:23,297 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:23,297 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:23,297 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:23,297 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:23,298 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:23,298 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:23,298 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:23,298 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:23,298 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:23,299 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:23,357 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:23,376 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:23,383 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:23,385 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:23,385 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:23,387 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call3_true-termination.i [2018-09-19 08:01:23,754 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f17c4dacf/55a4c14709414d96ba9eb76137ab80e2/FLAGff42724f0 [2018-09-19 08:01:23,922 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:23,928 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call3_true-termination.i [2018-09-19 08:01:23,936 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f17c4dacf/55a4c14709414d96ba9eb76137ab80e2/FLAGff42724f0 [2018-09-19 08:01:23,963 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f17c4dacf/55a4c14709414d96ba9eb76137ab80e2 [2018-09-19 08:01:23,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:23,981 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:23,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:23,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:23,992 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:23,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:23" (1/1) ... [2018-09-19 08:01:23,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aabe07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:23, skipping insertion in model container [2018-09-19 08:01:23,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:23" (1/1) ... [2018-09-19 08:01:24,010 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:24,203 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:24,226 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:24,235 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:24,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24 WrapperNode [2018-09-19 08:01:24,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:24,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:24,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:24,254 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:24,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24" (1/1) ... [2018-09-19 08:01:24,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24" (1/1) ... [2018-09-19 08:01:24,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:24,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:24,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:24,280 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:24,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24" (1/1) ... [2018-09-19 08:01:24,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24" (1/1) ... [2018-09-19 08:01:24,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24" (1/1) ... [2018-09-19 08:01:24,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24" (1/1) ... [2018-09-19 08:01:24,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24" (1/1) ... [2018-09-19 08:01:24,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24" (1/1) ... [2018-09-19 08:01:24,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24" (1/1) ... [2018-09-19 08:01:24,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:24,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:24,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:24,308 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:24,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24" (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 08:01:24,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:24,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:24,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:24,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:24,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:24,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:24,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:24,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:24,709 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:24,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:24 BoogieIcfgContainer [2018-09-19 08:01:24,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:24,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:24,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:24,731 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:24,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:23" (1/3) ... [2018-09-19 08:01:24,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747e02d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:24, skipping insertion in model container [2018-09-19 08:01:24,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:24" (2/3) ... [2018-09-19 08:01:24,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747e02d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:24, skipping insertion in model container [2018-09-19 08:01:24,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:24" (3/3) ... [2018-09-19 08:01:24,738 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call3_true-termination.i [2018-09-19 08:01:24,759 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:24,768 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:24,820 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:24,820 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:24,821 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:24,821 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:24,821 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:24,821 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:24,821 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:24,821 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:24,821 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:24,840 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-09-19 08:01:24,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 08:01:24,847 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:24,848 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:24,849 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:24,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1885467766, now seen corresponding path program 1 times [2018-09-19 08:01:24,858 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:24,859 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 08:01:24,861 INFO L202 CegarAbsIntRunner]: [0], [4], [16], [18], [22], [27], [35], [38], [40], [46], [47], [48], [50] [2018-09-19 08:01:24,916 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:24,916 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:24,963 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:24,965 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-19 08:01:24,978 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:25,017 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-19 08:01:25,017 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:25,021 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:25,022 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:25,022 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 08:01:25,023 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:25,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 08:01:25,033 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 08:01:25,034 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 08:01:25,036 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-09-19 08:01:25,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:25,057 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2018-09-19 08:01:25,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 08:01:25,059 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-09-19 08:01:25,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:25,068 INFO L225 Difference]: With dead ends: 37 [2018-09-19 08:01:25,068 INFO L226 Difference]: Without dead ends: 18 [2018-09-19 08:01:25,072 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 12 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 08:01:25,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-19 08:01:25,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-09-19 08:01:25,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-09-19 08:01:25,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-09-19 08:01:25,115 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-09-19 08:01:25,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:25,116 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-09-19 08:01:25,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 08:01:25,116 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-09-19 08:01:25,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-19 08:01:25,117 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:25,117 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:25,118 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:25,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1968857590, now seen corresponding path program 1 times [2018-09-19 08:01:25,118 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:25,118 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-19 08:01:25,119 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [18], [22], [27], [35], [38], [40], [46], [47], [48], [50] [2018-09-19 08:01:25,121 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:25,121 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:25,148 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 08:01:25,175 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 08:01:25,176 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Never found a fixpoint. Largest state had 3 variables. [2018-09-19 08:01:25,213 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 08:01:25,228 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 08:01:25,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:25 BoogieIcfgContainer [2018-09-19 08:01:25,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:25,230 INFO L168 Benchmark]: Toolchain (without parser) took 1252.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -743.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:01:25,232 INFO L168 Benchmark]: CDTParser took 0.36 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. [2018-09-19 08:01:25,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.43 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 08:01:25,233 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.47 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 08:01:25,234 INFO L168 Benchmark]: Boogie Preprocessor took 27.95 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 08:01:25,235 INFO L168 Benchmark]: RCFGBuilder took 402.57 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -787.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:25,236 INFO L168 Benchmark]: TraceAbstraction took 517.27 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: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:25,241 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 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 271.43 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 25.47 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 27.95 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 402.57 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -787.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 517.27 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: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: 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: [L20] unsigned int array[10000]; [L21] unsigned int index = 0; [L22] unsigned int tmp = 0; [L24] COND FALSE !(index < 10000) [L30] index = 0 [L30] COND TRUE index < 10000 [L31] CALL __VERIFIER_assert((array[index] == 2*index) || (array[index] == 0)) [L12] COND TRUE !(cond) [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. UNKNOWN Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 2 AbstIntIterations, 1 AbstIntStrong, 0.75 AbsIntWeakeningRatio, 0.5 AbsIntAvgWeakeningVarsNumRemoved, 0.5833333333333334 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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/simple_array_index_value_true-unreach-call3_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-01-25-260.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/simple_array_index_value_true-unreach-call3_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-01-25-260.csv Received shutdown request...