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/loop-crafted/simple_array_index_value_true-unreach-call2_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:03:49,079 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:03:49,081 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:03:49,100 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:03:49,100 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:03:49,101 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:03:49,103 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:03:49,106 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:03:49,108 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:03:49,110 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:03:49,111 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:03:49,111 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:03:49,112 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:03:49,113 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:03:49,114 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:03:49,115 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:03:49,116 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:03:49,119 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:03:49,127 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:03:49,130 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:03:49,132 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:03:49,136 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:03:49,143 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 21:03:49,143 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 21:03:49,144 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 21:03:49,145 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 21:03:49,146 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 21:03:49,146 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 21:03:49,147 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 21:03:49,151 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 21:03:49,152 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 21:03:49,155 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-15 21:03:49,159 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 21:03:49,187 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:03:49,188 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:03:49,190 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:03:49,190 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:03:49,190 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:03:49,190 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:03:49,190 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:03:49,191 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:03:49,191 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:03:49,191 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:03:49,191 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:03:49,192 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:03:49,192 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:03:49,193 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:03:49,193 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:03:49,193 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:03:49,193 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:03:49,195 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:03:49,195 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:03:49,195 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:03:49,195 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:03:49,196 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:03:49,196 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:03:49,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:49,196 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:03:49,197 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:03:49,197 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:03:49,197 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:03:49,197 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:03:49,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:03:49,198 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:03:49,198 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:03:49,198 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:03:49,256 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:03:49,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:03:49,273 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:03:49,275 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:03:49,275 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:03:49,276 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call2_true-termination.i [2018-09-15 21:03:49,621 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0e045b53/dab7f1c8a244470bb18a196b3d109bf3/FLAG31ab8bedb [2018-09-15 21:03:49,799 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:03:49,799 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call2_true-termination.i [2018-09-15 21:03:49,806 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0e045b53/dab7f1c8a244470bb18a196b3d109bf3/FLAG31ab8bedb [2018-09-15 21:03:49,826 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0e045b53/dab7f1c8a244470bb18a196b3d109bf3 [2018-09-15 21:03:49,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:03:49,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:03:49,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:49,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:03:49,850 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:03:49,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:49" (1/1) ... [2018-09-15 21:03:49,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@594aa5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:49, skipping insertion in model container [2018-09-15 21:03:49,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:49" (1/1) ... [2018-09-15 21:03:49,867 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:03:50,114 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:50,135 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:03:50,144 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:50,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50 WrapperNode [2018-09-15 21:03:50,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:50,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:50,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:03:50,163 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:03:50,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50" (1/1) ... [2018-09-15 21:03:50,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50" (1/1) ... [2018-09-15 21:03:50,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:50,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:03:50,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:03:50,187 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:03:50,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50" (1/1) ... [2018-09-15 21:03:50,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50" (1/1) ... [2018-09-15 21:03:50,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50" (1/1) ... [2018-09-15 21:03:50,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50" (1/1) ... [2018-09-15 21:03:50,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50" (1/1) ... [2018-09-15 21:03:50,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50" (1/1) ... [2018-09-15 21:03:50,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50" (1/1) ... [2018-09-15 21:03:50,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:03:50,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:03:50,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:03:50,206 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:03:50,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50" (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 21:03:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:03:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:03:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:03:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:03:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:03:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:03:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 21:03:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 21:03:50,669 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:03:50,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:50 BoogieIcfgContainer [2018-09-15 21:03:50,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:03:50,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:03:50,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:03:50,687 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:03:50,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:03:49" (1/3) ... [2018-09-15 21:03:50,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcea1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:50, skipping insertion in model container [2018-09-15 21:03:50,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:50" (2/3) ... [2018-09-15 21:03:50,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcea1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:50, skipping insertion in model container [2018-09-15 21:03:50,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:50" (3/3) ... [2018-09-15 21:03:50,695 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call2_true-termination.i [2018-09-15 21:03:50,711 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:03:50,720 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:03:50,777 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:03:50,777 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:03:50,778 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:03:50,778 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:03:50,778 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:03:50,778 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:03:50,778 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:03:50,778 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:03:50,778 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:03:50,796 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-09-15 21:03:50,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-15 21:03:50,802 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:50,803 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:50,804 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:50,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1512438165, now seen corresponding path program 1 times [2018-09-15 21:03:50,812 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:50,813 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-15 21:03:50,816 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [19], [23], [28], [36], [39], [41], [47], [48], [49], [51] [2018-09-15 21:03:50,852 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:50,852 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:50,926 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:50,928 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 21:03:50,974 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:51,026 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-15 21:03:51,027 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:51,029 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:51,031 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:51,031 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-15 21:03:51,031 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:51,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-15 21:03:51,042 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-15 21:03:51,042 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-15 21:03:51,045 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-09-15 21:03:51,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:51,070 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2018-09-15 21:03:51,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-15 21:03:51,072 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-09-15 21:03:51,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:51,083 INFO L225 Difference]: With dead ends: 38 [2018-09-15 21:03:51,083 INFO L226 Difference]: Without dead ends: 19 [2018-09-15 21:03:51,087 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 [2018-09-15 21:03:51,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-15 21:03:51,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-09-15 21:03:51,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-15 21:03:51,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-09-15 21:03:51,123 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 13 [2018-09-15 21:03:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:51,124 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-09-15 21:03:51,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-15 21:03:51,125 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-09-15 21:03:51,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 21:03:51,125 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:51,126 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:51,126 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:51,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1030292873, now seen corresponding path program 1 times [2018-09-15 21:03:51,127 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:51,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 21:03:51,128 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [19], [23], [28], [36], [39], [41], [47], [48], [49], [51] [2018-09-15 21:03:51,129 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:51,129 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:51,141 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:51,141 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-15 21:03:51,169 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:51,182 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 21:03:51,183 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:51,195 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:51,195 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:51,196 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:03:51,196 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:51,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:03:51,198 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:03:51,198 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:51,198 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 3 states. [2018-09-15 21:03:51,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:51,272 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-09-15 21:03:51,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:03:51,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-15 21:03:51,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:51,275 INFO L225 Difference]: With dead ends: 37 [2018-09-15 21:03:51,275 INFO L226 Difference]: Without dead ends: 26 [2018-09-15 21:03:51,277 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 [2018-09-15 21:03:51,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-09-15 21:03:51,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2018-09-15 21:03:51,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-09-15 21:03:51,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-09-15 21:03:51,287 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2018-09-15 21:03:51,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:51,287 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-09-15 21:03:51,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:03:51,287 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-09-15 21:03:51,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-15 21:03:51,288 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:51,288 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:51,289 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:51,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1364873137, now seen corresponding path program 1 times [2018-09-15 21:03:51,289 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:51,289 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-15 21:03:51,290 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [13], [15], [19], [23], [28], [36], [39], [41], [47], [48], [49], [51] [2018-09-15 21:03:51,291 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:51,292 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:51,303 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 21:03:51,385 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 21:03:51,385 INFO L272 AbstractInterpreter]: Visited 16 different actions 49 times. Merged at 4 different actions 26 times. Widened at 1 different actions 3 times. Found 6 fixpoints after 2 different actions. Largest state had 5 variables. [2018-09-15 21:03:51,400 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 21:03:51,416 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 21:03:51,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:03:51 BoogieIcfgContainer [2018-09-15 21:03:51,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 21:03:51,417 INFO L168 Benchmark]: Toolchain (without parser) took 1578.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -733.9 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:51,419 INFO L168 Benchmark]: CDTParser took 0.22 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 21:03:51,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.29 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 21:03:51,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.95 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. [2018-09-15 21:03:51,422 INFO L168 Benchmark]: Boogie Preprocessor took 18.69 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 21:03:51,422 INFO L168 Benchmark]: RCFGBuilder took 465.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -776.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:51,423 INFO L168 Benchmark]: TraceAbstraction took 744.63 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: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:51,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 320.29 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 22.95 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. * Boogie Preprocessor took 18.69 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 465.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -776.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 744.63 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: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: 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: [L21] unsigned int array[10000]; [L22] unsigned int index; [L24] index = 0 [L24] COND TRUE index < 10000 [L25] unsigned int tmp = __VERIFIER_nondet_uint(); [L27] array[index] = tmp [L24] index++ [L24] index++ [L24] COND FALSE !(index < 10000) [L30] index = 0 [L30] COND TRUE index < 10000 [L31] CALL __VERIFIER_assert(array[index] > index) [L11] COND TRUE !(cond) [L12] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. UNKNOWN Result, 0.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 3 SDslu, 13 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.4 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 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/simple_array_index_value_true-unreach-call2_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_21-03-51-442.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/simple_array_index_value_true-unreach-call2_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_21-03-51-442.csv Received shutdown request...