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-new/count_by_1_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 17:20:30,370 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 17:20:30,372 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 17:20:30,388 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 17:20:30,389 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 17:20:30,390 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 17:20:30,391 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 17:20:30,393 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 17:20:30,395 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 17:20:30,396 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 17:20:30,397 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 17:20:30,397 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 17:20:30,398 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 17:20:30,399 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 17:20:30,401 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 17:20:30,401 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 17:20:30,403 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 17:20:30,405 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 17:20:30,407 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 17:20:30,409 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 17:20:30,410 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 17:20:30,411 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 17:20:30,413 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 17:20:30,414 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 17:20:30,414 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 17:20:30,415 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 17:20:30,416 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 17:20:30,417 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 17:20:30,418 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 17:20:30,419 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 17:20:30,420 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 17:20:30,420 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 17:20:30,421 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 17:20:30,421 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 17:20:30,422 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 17:20:30,423 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 17:20:30,423 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 [2018-09-15 17:20:30,439 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 17:20:30,440 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 17:20:30,442 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 17:20:30,444 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 17:20:30,444 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 17:20:30,445 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 17:20:30,445 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 17:20:30,445 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 17:20:30,445 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-15 17:20:30,446 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 17:20:30,446 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 17:20:30,446 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 17:20:30,447 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 17:20:30,447 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 17:20:30,447 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 17:20:30,448 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 17:20:30,448 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 17:20:30,448 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 17:20:30,448 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 17:20:30,448 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 17:20:30,450 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 17:20:30,450 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 17:20:30,450 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 17:20:30,450 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 17:20:30,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 17:20:30,451 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 17:20:30,451 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 17:20:30,451 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 17:20:30,451 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 17:20:30,451 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 17:20:30,452 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 17:20:30,452 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 17:20:30,452 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 17:20:30,452 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 17:20:30,514 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 17:20:30,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 17:20:30,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 17:20:30,533 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 17:20:30,534 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 17:20:30,535 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i [2018-09-15 17:20:30,879 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8081b5b/8d0137c2915847caa7f07ad0ac880ecf/FLAG44bbb27e4 [2018-09-15 17:20:31,047 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 17:20:31,048 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i [2018-09-15 17:20:31,054 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8081b5b/8d0137c2915847caa7f07ad0ac880ecf/FLAG44bbb27e4 [2018-09-15 17:20:31,077 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8081b5b/8d0137c2915847caa7f07ad0ac880ecf [2018-09-15 17:20:31,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 17:20:31,095 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 17:20:31,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 17:20:31,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 17:20:31,108 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 17:20:31,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:20:31" (1/1) ... [2018-09-15 17:20:31,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@339a05e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31, skipping insertion in model container [2018-09-15 17:20:31,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 05:20:31" (1/1) ... [2018-09-15 17:20:31,125 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 17:20:31,315 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:20:31,333 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 17:20:31,337 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 17:20:31,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31 WrapperNode [2018-09-15 17:20:31,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 17:20:31,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 17:20:31,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 17:20:31,351 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 17:20:31,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31" (1/1) ... [2018-09-15 17:20:31,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31" (1/1) ... [2018-09-15 17:20:31,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 17:20:31,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 17:20:31,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 17:20:31,374 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 17:20:31,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31" (1/1) ... [2018-09-15 17:20:31,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31" (1/1) ... [2018-09-15 17:20:31,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31" (1/1) ... [2018-09-15 17:20:31,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31" (1/1) ... [2018-09-15 17:20:31,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31" (1/1) ... [2018-09-15 17:20:31,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31" (1/1) ... [2018-09-15 17:20:31,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31" (1/1) ... [2018-09-15 17:20:31,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 17:20:31,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 17:20:31,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 17:20:31,396 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 17:20:31,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31" (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 17:20:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 17:20:31,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 17:20:31,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 17:20:31,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 17:20:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 17:20:31,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 17:20:31,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 17:20:31,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 17:20:31,723 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 17:20:31,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:20:31 BoogieIcfgContainer [2018-09-15 17:20:31,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 17:20:31,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 17:20:31,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 17:20:31,729 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 17:20:31,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 05:20:31" (1/3) ... [2018-09-15 17:20:31,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752c3f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:20:31, skipping insertion in model container [2018-09-15 17:20:31,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 05:20:31" (2/3) ... [2018-09-15 17:20:31,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752c3f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 05:20:31, skipping insertion in model container [2018-09-15 17:20:31,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 05:20:31" (3/3) ... [2018-09-15 17:20:31,733 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_true-unreach-call_true-termination.i [2018-09-15 17:20:31,743 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 17:20:31,751 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 17:20:31,803 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 17:20:31,804 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 17:20:31,804 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 17:20:31,805 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 17:20:31,805 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 17:20:31,805 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 17:20:31,805 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 17:20:31,805 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 17:20:31,805 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 17:20:31,825 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-15 17:20:31,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-15 17:20:31,832 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:31,833 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:31,834 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:31,840 INFO L82 PathProgramCache]: Analyzing trace with hash 563245249, now seen corresponding path program 1 times [2018-09-15 17:20:31,842 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:31,844 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-15 17:20:31,846 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [22], [25], [27], [33], [34], [35], [37] [2018-09-15 17:20:31,897 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:31,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:31,939 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:31,940 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 1 variables. [2018-09-15 17:20:31,969 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:32,022 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 17:20:32,022 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:32,061 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:32,063 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:32,064 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 17:20:32,064 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:32,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 17:20:32,082 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 17:20:32,083 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:20:32,095 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-09-15 17:20:32,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:32,181 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2018-09-15 17:20:32,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 17:20:32,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-15 17:20:32,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:32,192 INFO L225 Difference]: With dead ends: 35 [2018-09-15 17:20:32,192 INFO L226 Difference]: Without dead ends: 16 [2018-09-15 17:20:32,196 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 17:20:32,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-15 17:20:32,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-09-15 17:20:32,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-15 17:20:32,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-15 17:20:32,235 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2018-09-15 17:20:32,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:32,236 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-15 17:20:32,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 17:20:32,236 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-15 17:20:32,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 17:20:32,237 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 17:20:32,237 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 17:20:32,238 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 17:20:32,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1177044387, now seen corresponding path program 1 times [2018-09-15 17:20:32,238 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 17:20:32,238 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 17:20:32,239 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [13], [15], [22], [25], [27], [33], [34], [35], [37] [2018-09-15 17:20:32,241 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-15 17:20:32,241 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 17:20:32,272 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 17:20:32,272 INFO L272 AbstractInterpreter]: Visited 12 different actions 36 times. Merged at 3 different actions 18 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-09-15 17:20:32,295 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 17:20:32,322 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 17:20:32,322 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 17:20:32,454 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 17:20:32,455 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 17:20:32,455 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-15 17:20:32,455 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 17:20:32,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-15 17:20:32,456 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-15 17:20:32,456 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-15 17:20:32,457 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 7 states. [2018-09-15 17:20:32,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 17:20:32,528 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-09-15 17:20:32,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-15 17:20:32,528 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-09-15 17:20:32,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 17:20:32,529 INFO L225 Difference]: With dead ends: 15 [2018-09-15 17:20:32,529 INFO L226 Difference]: Without dead ends: 0 [2018-09-15 17:20:32,530 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-15 17:20:32,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-15 17:20:32,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-15 17:20:32,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-15 17:20:32,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-15 17:20:32,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-09-15 17:20:32,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 17:20:32,532 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-15 17:20:32,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-15 17:20:32,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-15 17:20:32,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-15 17:20:32,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-15 17:20:32,680 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-15 17:20:32,680 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-15 17:20:32,681 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-15 17:20:32,681 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-15 17:20:32,681 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-15 17:20:32,681 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-15 17:20:32,681 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 15) the Hoare annotation is: true [2018-09-15 17:20:32,682 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 15) no Hoare annotation was computed. [2018-09-15 17:20:32,682 INFO L426 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-09-15 17:20:32,682 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 15) no Hoare annotation was computed. [2018-09-15 17:20:32,682 INFO L426 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-09-15 17:20:32,682 INFO L426 ceAbstractionStarter]: For program point L12-3(line 12) no Hoare annotation was computed. [2018-09-15 17:20:32,683 INFO L422 ceAbstractionStarter]: At program point L12-4(line 12) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= 0 .cse0) (<= .cse0 2000000))) [2018-09-15 17:20:32,683 INFO L422 ceAbstractionStarter]: At program point L12-5(line 12) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= .cse0 2000000) (<= 2000000 .cse0))) [2018-09-15 17:20:32,683 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-15 17:20:32,684 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-15 17:20:32,684 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-15 17:20:32,684 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-15 17:20:32,684 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-15 17:20:32,684 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-15 17:20:32,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 05:20:32 BoogieIcfgContainer [2018-09-15 17:20:32,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 17:20:32,694 INFO L168 Benchmark]: Toolchain (without parser) took 1604.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -756.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 17:20:32,696 INFO L168 Benchmark]: CDTParser took 0.21 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 17:20:32,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.13 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:32,698 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.02 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 17:20:32,699 INFO L168 Benchmark]: Boogie Preprocessor took 21.18 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 17:20:32,699 INFO L168 Benchmark]: RCFGBuilder took 328.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -813.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:32,701 INFO L168 Benchmark]: TraceAbstraction took 968.08 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: 43.6 MB). Peak memory consumption was 43.6 MB. Max. memory is 7.1 GB. [2018-09-15 17:20:32,707 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 254.13 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 23.02 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 21.18 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 328.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -813.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 968.08 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: 43.6 MB). Peak memory consumption was 43.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 <= 2 * i && 2 * i <= 2000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 7 SDslu, 36 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9318181818181818 AbsIntWeakeningRatio, 0.3181818181818182 AbsIntAvgWeakeningVarsNumRemoved, 0.2727272727272727 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 27 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_by_1_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_17-20-32-721.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_by_1_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_17-20-32-721.csv Received shutdown request...