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-new/count_by_nondet_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 13:07:05,075 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 13:07:05,077 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 13:07:05,090 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 13:07:05,090 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 13:07:05,091 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 13:07:05,092 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 13:07:05,094 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 13:07:05,096 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 13:07:05,097 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 13:07:05,098 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 13:07:05,098 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 13:07:05,099 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 13:07:05,100 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 13:07:05,101 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 13:07:05,102 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 13:07:05,103 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 13:07:05,105 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 13:07:05,107 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 13:07:05,109 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 13:07:05,110 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 13:07:05,111 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 13:07:05,114 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 13:07:05,114 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 13:07:05,115 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 13:07:05,116 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 13:07:05,117 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 13:07:05,118 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 13:07:05,119 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 13:07:05,120 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 13:07:05,120 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 13:07:05,121 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-15 13:07:05,124 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 [2018-09-15 13:07:05,142 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 13:07:05,143 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 13:07:05,144 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 13:07:05,144 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 13:07:05,144 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 13:07:05,144 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 13:07:05,144 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 13:07:05,145 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 13:07:05,145 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 13:07:05,145 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 13:07:05,145 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 13:07:05,145 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 13:07:05,146 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 13:07:05,146 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 13:07:05,147 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 13:07:05,147 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 13:07:05,147 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 13:07:05,147 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 13:07:05,147 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 13:07:05,148 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 13:07:05,148 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 13:07:05,148 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 13:07:05,148 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 13:07:05,148 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 13:07:05,149 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 13:07:05,149 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 13:07:05,149 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 13:07:05,149 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 13:07:05,150 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 13:07:05,150 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 13:07:05,150 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 13:07:05,150 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 13:07:05,150 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 13:07:05,151 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 13:07:05,196 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 13:07:05,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 13:07:05,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 13:07:05,219 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 13:07:05,220 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 13:07:05,221 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_nondet_true-unreach-call_true-termination.i [2018-09-15 13:07:05,567 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f316023d1/007b774391f846c99cc1e7bcbe239810/FLAG8b80db04e [2018-09-15 13:07:05,733 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 13:07:05,734 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_nondet_true-unreach-call_true-termination.i [2018-09-15 13:07:05,741 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f316023d1/007b774391f846c99cc1e7bcbe239810/FLAG8b80db04e [2018-09-15 13:07:05,756 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f316023d1/007b774391f846c99cc1e7bcbe239810 [2018-09-15 13:07:05,766 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 13:07:05,768 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 13:07:05,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 13:07:05,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 13:07:05,780 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 13:07:05,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:07:05" (1/1) ... [2018-09-15 13:07:05,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b1759e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:05, skipping insertion in model container [2018-09-15 13:07:05,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 01:07:05" (1/1) ... [2018-09-15 13:07:05,797 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 13:07:06,011 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:07:06,028 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 13:07:06,032 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 13:07:06,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06 WrapperNode [2018-09-15 13:07:06,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 13:07:06,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 13:07:06,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 13:07:06,045 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 13:07:06,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06" (1/1) ... [2018-09-15 13:07:06,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06" (1/1) ... [2018-09-15 13:07:06,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 13:07:06,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 13:07:06,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 13:07:06,067 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 13:07:06,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06" (1/1) ... [2018-09-15 13:07:06,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06" (1/1) ... [2018-09-15 13:07:06,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06" (1/1) ... [2018-09-15 13:07:06,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06" (1/1) ... [2018-09-15 13:07:06,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06" (1/1) ... [2018-09-15 13:07:06,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06" (1/1) ... [2018-09-15 13:07:06,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06" (1/1) ... [2018-09-15 13:07:06,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 13:07:06,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 13:07:06,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 13:07:06,089 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 13:07:06,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06" (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 13:07:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 13:07:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 13:07:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 13:07:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 13:07:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 13:07:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 13:07:06,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 13:07:06,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 13:07:06,403 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 13:07:06,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:07:06 BoogieIcfgContainer [2018-09-15 13:07:06,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 13:07:06,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 13:07:06,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 13:07:06,408 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 13:07:06,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 01:07:05" (1/3) ... [2018-09-15 13:07:06,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1b8af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:07:06, skipping insertion in model container [2018-09-15 13:07:06,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 01:07:06" (2/3) ... [2018-09-15 13:07:06,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1b8af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 01:07:06, skipping insertion in model container [2018-09-15 13:07:06,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 01:07:06" (3/3) ... [2018-09-15 13:07:06,412 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_nondet_true-unreach-call_true-termination.i [2018-09-15 13:07:06,422 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 13:07:06,430 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 13:07:06,482 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 13:07:06,483 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 13:07:06,483 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 13:07:06,483 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 13:07:06,484 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 13:07:06,484 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 13:07:06,484 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 13:07:06,484 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 13:07:06,484 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 13:07:06,501 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-15 13:07:06,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-15 13:07:06,507 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:07:06,508 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:07:06,509 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:07:06,513 INFO L82 PathProgramCache]: Analyzing trace with hash -722424895, now seen corresponding path program 1 times [2018-09-15 13:07:06,516 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:07:06,516 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-09-15 13:07:06,518 INFO L202 CegarAbsIntRunner]: [0], [4], [20], [25], [28], [30], [36], [37], [38], [40] [2018-09-15 13:07:06,551 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:07:06,551 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:07:06,602 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:07:06,604 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 13:07:06,621 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:07:06,660 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-09-15 13:07:06,661 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:07:06,694 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:07:06,696 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:07:06,696 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 13:07:06,697 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:07:06,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 13:07:06,710 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 13:07:06,710 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 13:07:06,713 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-09-15 13:07:06,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 13:07:06,753 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2018-09-15 13:07:06,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 13:07:06,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-09-15 13:07:06,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 13:07:06,764 INFO L225 Difference]: With dead ends: 39 [2018-09-15 13:07:06,764 INFO L226 Difference]: Without dead ends: 17 [2018-09-15 13:07:06,768 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 13:07:06,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-15 13:07:06,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2018-09-15 13:07:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-15 13:07:06,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-09-15 13:07:06,809 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-09-15 13:07:06,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 13:07:06,809 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-09-15 13:07:06,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 13:07:06,810 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-09-15 13:07:06,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-15 13:07:06,811 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:07:06,811 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:07:06,811 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:07:06,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1289299715, now seen corresponding path program 1 times [2018-09-15 13:07:06,812 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:07:06,812 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-15 13:07:06,813 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [25], [28], [30], [36], [37], [38], [40] [2018-09-15 13:07:06,814 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:07:06,814 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:07:06,832 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 13:07:06,833 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 13:07:06,853 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 13:07:06,861 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 13:07:06,861 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 13:07:06,890 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 13:07:06,890 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 13:07:06,890 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 13:07:06,891 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 13:07:06,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 13:07:06,892 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 13:07:06,892 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 13:07:06,892 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2018-09-15 13:07:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 13:07:06,984 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-09-15 13:07:06,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 13:07:06,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-15 13:07:06,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 13:07:06,985 INFO L225 Difference]: With dead ends: 21 [2018-09-15 13:07:06,986 INFO L226 Difference]: Without dead ends: 16 [2018-09-15 13:07:06,987 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 9 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 13:07:06,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-15 13:07:06,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-09-15 13:07:06,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-15 13:07:06,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-15 13:07:06,992 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2018-09-15 13:07:06,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 13:07:06,993 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-15 13:07:06,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 13:07:06,993 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-15 13:07:06,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-15 13:07:06,994 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 13:07:06,994 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 13:07:06,995 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 13:07:06,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1003978365, now seen corresponding path program 1 times [2018-09-15 13:07:06,995 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 13:07:06,999 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-15 13:07:06,999 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [18], [25], [28], [30], [36], [37], [38], [40] [2018-09-15 13:07:07,002 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 13:07:07,003 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 13:07:07,081 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 13:07:07,081 INFO L272 AbstractInterpreter]: Visited 13 different actions 61 times. Merged at 4 different actions 26 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-09-15 13:07:07,095 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 13:07:07,112 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 13:07:07,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 01:07:07 BoogieIcfgContainer [2018-09-15 13:07:07,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 13:07:07,114 INFO L168 Benchmark]: Toolchain (without parser) took 1347.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 13:07:07,116 INFO L168 Benchmark]: CDTParser took 0.24 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 13:07:07,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.91 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 13:07:07,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.97 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 13:07:07,118 INFO L168 Benchmark]: Boogie Preprocessor took 21.82 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 13:07:07,119 INFO L168 Benchmark]: RCFGBuilder took 315.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -808.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-15 13:07:07,120 INFO L168 Benchmark]: TraceAbstraction took 708.72 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: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2018-09-15 13:07:07,125 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 274.91 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 20.97 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 21.82 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 315.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -808.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 708.72 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: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L11] int i = 0; [L12] int k = 0; [L13] COND TRUE i < 1000000 [L14] int j = __VERIFIER_nondet_int(); [L15] COND FALSE !(!(1 <= j && j < 1000000)) [L16] i = i + j [L17] k ++ [L17] k ++ [L13] COND FALSE !(i < 1000000) [L19] CALL __VERIFIER_assert(k <= 1000000) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. UNKNOWN Result, 0.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 7 SDslu, 28 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 0.2s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.42105263157894735 AbsIntAvgWeakeningVarsNumRemoved, 0.05263157894736842 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 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/count_by_nondet_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_13-07-07-139.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_by_nondet_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_13-07-07-139.csv Received shutdown request...