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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call2_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 05:01:18,700 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 05:01:18,703 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 05:01:18,721 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 05:01:18,722 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 05:01:18,724 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 05:01:18,725 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 05:01:18,728 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 05:01:18,730 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 05:01:18,731 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 05:01:18,732 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 05:01:18,732 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 05:01:18,733 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 05:01:18,734 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 05:01:18,736 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 05:01:18,737 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 05:01:18,739 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 05:01:18,741 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 05:01:18,743 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 05:01:18,747 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 05:01:18,748 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 05:01:18,752 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 05:01:18,756 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 05:01:18,757 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 05:01:18,757 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 05:01:18,758 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 05:01:18,760 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 05:01:18,761 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 05:01:18,763 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 05:01:18,766 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 05:01:18,766 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 05:01:18,767 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 05:01:18,768 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 05:01:18,768 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 05:01:18,769 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 05:01:18,773 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 05:01:18,773 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-19 05:01:18,803 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 05:01:18,804 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 05:01:18,805 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 05:01:18,805 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 05:01:18,805 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 05:01:18,806 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 05:01:18,806 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 05:01:18,806 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 05:01:18,806 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 05:01:18,807 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-19 05:01:18,807 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 05:01:18,807 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 05:01:18,807 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 05:01:18,808 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 05:01:18,808 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 05:01:18,809 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 05:01:18,810 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 05:01:18,810 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 05:01:18,810 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 05:01:18,810 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 05:01:18,810 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 05:01:18,811 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 05:01:18,811 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 05:01:18,811 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 05:01:18,811 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 05:01:18,813 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 05:01:18,813 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 05:01:18,813 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 05:01:18,814 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 05:01:18,814 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 05:01:18,814 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 05:01:18,814 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 05:01:18,815 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 05:01:18,815 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 05:01:18,815 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 05:01:18,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 05:01:18,890 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 05:01:18,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 05:01:18,896 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 05:01:18,896 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 05:01:18,897 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call2_true-termination.i [2018-09-19 05:01:19,276 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a412830fa/c78a6a0ad7ce4b4c8576301a4b9523f0/FLAG0353cd7d3 [2018-09-19 05:01:19,447 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 05:01:19,448 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call2_true-termination.i [2018-09-19 05:01:19,456 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a412830fa/c78a6a0ad7ce4b4c8576301a4b9523f0/FLAG0353cd7d3 [2018-09-19 05:01:19,474 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a412830fa/c78a6a0ad7ce4b4c8576301a4b9523f0 [2018-09-19 05:01:19,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 05:01:19,490 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 05:01:19,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:19,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 05:01:19,500 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 05:01:19,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:19" (1/1) ... [2018-09-19 05:01:19,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19536b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19, skipping insertion in model container [2018-09-19 05:01:19,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:19" (1/1) ... [2018-09-19 05:01:19,515 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 05:01:19,701 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:19,719 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 05:01:19,728 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:19,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19 WrapperNode [2018-09-19 05:01:19,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:19,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:19,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 05:01:19,742 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 05:01:19,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19" (1/1) ... [2018-09-19 05:01:19,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19" (1/1) ... [2018-09-19 05:01:19,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:19,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 05:01:19,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 05:01:19,769 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 05:01:19,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19" (1/1) ... [2018-09-19 05:01:19,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19" (1/1) ... [2018-09-19 05:01:19,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19" (1/1) ... [2018-09-19 05:01:19,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19" (1/1) ... [2018-09-19 05:01:19,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19" (1/1) ... [2018-09-19 05:01:19,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19" (1/1) ... [2018-09-19 05:01:19,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19" (1/1) ... [2018-09-19 05:01:19,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 05:01:19,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 05:01:19,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 05:01:19,799 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 05:01:19,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19" (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 05:01:19,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 05:01:19,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 05:01:19,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 05:01:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 05:01:19,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 05:01:19,874 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 05:01:19,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 05:01:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 05:01:20,262 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 05:01:20,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:20 BoogieIcfgContainer [2018-09-19 05:01:20,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 05:01:20,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 05:01:20,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 05:01:20,278 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 05:01:20,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 05:01:19" (1/3) ... [2018-09-19 05:01:20,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318ce467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:20, skipping insertion in model container [2018-09-19 05:01:20,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:19" (2/3) ... [2018-09-19 05:01:20,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318ce467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:20, skipping insertion in model container [2018-09-19 05:01:20,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:20" (3/3) ... [2018-09-19 05:01:20,289 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call2_true-termination.i [2018-09-19 05:01:20,303 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 05:01:20,312 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 05:01:20,365 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 05:01:20,365 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 05:01:20,365 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 05:01:20,365 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 05:01:20,366 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 05:01:20,366 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 05:01:20,366 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 05:01:20,366 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 05:01:20,366 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 05:01:20,384 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-09-19 05:01:20,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 05:01:20,392 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:20,393 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:20,394 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:20,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1512438165, now seen corresponding path program 1 times [2018-09-19 05:01:20,403 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:20,405 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 05:01:20,407 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [19], [23], [28], [36], [39], [41], [47], [48], [49], [51] [2018-09-19 05:01:20,446 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:20,446 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:20,501 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:20,503 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 05:01:20,519 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:20,570 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-19 05:01:20,571 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:20,575 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:20,578 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:20,578 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 05:01:20,578 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:20,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 05:01:20,588 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 05:01:20,589 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 05:01:20,591 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-09-19 05:01:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:20,612 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2018-09-19 05:01:20,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 05:01:20,614 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-09-19 05:01:20,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:20,626 INFO L225 Difference]: With dead ends: 38 [2018-09-19 05:01:20,626 INFO L226 Difference]: Without dead ends: 19 [2018-09-19 05:01:20,630 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 05:01:20,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-19 05:01:20,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-09-19 05:01:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-19 05:01:20,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-09-19 05:01:20,671 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 13 [2018-09-19 05:01:20,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:20,672 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-09-19 05:01:20,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 05:01:20,672 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-09-19 05:01:20,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-19 05:01:20,673 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:20,673 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:20,674 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:20,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1030292873, now seen corresponding path program 1 times [2018-09-19 05:01:20,675 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:20,675 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-19 05:01:20,675 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [19], [23], [28], [36], [39], [41], [47], [48], [49], [51] [2018-09-19 05:01:20,677 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:20,677 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:20,692 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 05:01:20,704 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 05:01:20,706 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Never found a fixpoint. Largest state had 2 variables. [2018-09-19 05:01:20,741 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 05:01:20,756 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 05:01:20,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 05:01:20 BoogieIcfgContainer [2018-09-19 05:01:20,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 05:01:20,758 INFO L168 Benchmark]: Toolchain (without parser) took 1270.82 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -741.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:20,760 INFO L168 Benchmark]: CDTParser took 0.23 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 05:01:20,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.79 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 05:01:20,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.32 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 05:01:20,763 INFO L168 Benchmark]: Boogie Preprocessor took 29.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:20,764 INFO L168 Benchmark]: RCFGBuilder took 465.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -781.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:20,765 INFO L168 Benchmark]: TraceAbstraction took 486.08 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: 30.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:20,770 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 250.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 26.32 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 29.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 465.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -781.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 486.08 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: 30.2 MB). Peak memory consumption was 30.2 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 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, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 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=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.4166666666666667 AbsIntAvgWeakeningVarsNumRemoved, 0.0 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-call2_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_05-01-20-791.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_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_05-01-20-791.csv Received shutdown request...