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_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:47:36,308 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:47:36,311 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:47:36,323 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:47:36,323 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:47:36,324 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:47:36,325 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:47:36,327 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:47:36,329 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:47:36,330 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:47:36,331 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:47:36,331 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:47:36,332 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:47:36,333 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:47:36,334 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:47:36,335 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:47:36,336 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:47:36,338 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:47:36,340 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:47:36,342 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:47:36,343 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:47:36,344 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:47:36,347 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 15:47:36,347 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 15:47:36,347 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 15:47:36,348 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 15:47:36,349 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 15:47:36,350 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 15:47:36,351 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 15:47:36,352 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 15:47:36,352 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 15:47:36,353 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 15:47:36,353 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:47:36,353 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:47:36,355 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:47:36,355 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:47:36,356 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-09-15 15:47:36,383 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:47:36,383 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:47:36,384 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:47:36,384 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:47:36,385 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:47:36,385 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:47:36,385 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:47:36,385 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:47:36,385 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-09-15 15:47:36,386 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:47:36,386 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:47:36,386 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 15:47:36,387 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:47:36,387 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:47:36,387 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:47:36,387 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:47:36,388 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:47:36,388 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:47:36,388 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:47:36,388 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:47:36,388 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:47:36,389 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:47:36,389 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:47:36,389 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:47:36,389 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:47:36,390 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:47:36,390 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:47:36,391 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:47:36,391 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:47:36,391 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:47:36,391 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:47:36,392 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:47:36,392 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:47:36,392 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:47:36,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:47:36,483 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:47:36,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:47:36,491 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:47:36,492 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:47:36,493 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i [2018-09-15 15:47:36,864 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc2eb1246/62049f8cc7814f26bd5f6aa5f4830aea/FLAGa2acb5b00 [2018-09-15 15:47:37,047 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:47:37,048 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i [2018-09-15 15:47:37,057 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc2eb1246/62049f8cc7814f26bd5f6aa5f4830aea/FLAGa2acb5b00 [2018-09-15 15:47:37,087 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc2eb1246/62049f8cc7814f26bd5f6aa5f4830aea [2018-09-15 15:47:37,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:47:37,107 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:47:37,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:47:37,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:47:37,117 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:47:37,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:47:37" (1/1) ... [2018-09-15 15:47:37,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5786f47e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37, skipping insertion in model container [2018-09-15 15:47:37,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:47:37" (1/1) ... [2018-09-15 15:47:37,138 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:47:37,347 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:47:37,366 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:47:37,374 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:47:37,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37 WrapperNode [2018-09-15 15:47:37,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:47:37,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:47:37,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:47:37,390 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:47:37,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37" (1/1) ... [2018-09-15 15:47:37,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37" (1/1) ... [2018-09-15 15:47:37,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:47:37,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:47:37,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:47:37,416 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:47:37,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37" (1/1) ... [2018-09-15 15:47:37,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37" (1/1) ... [2018-09-15 15:47:37,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37" (1/1) ... [2018-09-15 15:47:37,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37" (1/1) ... [2018-09-15 15:47:37,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37" (1/1) ... [2018-09-15 15:47:37,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37" (1/1) ... [2018-09-15 15:47:37,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37" (1/1) ... [2018-09-15 15:47:37,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:47:37,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:47:37,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:47:37,442 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:47:37,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37" (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 15:47:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:47:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:47:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-09-15 15:47:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-09-15 15:47:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:47:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:47:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:47:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:47:37,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 15:47:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 15:47:38,050 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:47:38,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:47:38 BoogieIcfgContainer [2018-09-15 15:47:38,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:47:38,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:47:38,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:47:38,056 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:47:38,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:47:37" (1/3) ... [2018-09-15 15:47:38,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400f3c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:47:38, skipping insertion in model container [2018-09-15 15:47:38,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:47:37" (2/3) ... [2018-09-15 15:47:38,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400f3c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:47:38, skipping insertion in model container [2018-09-15 15:47:38,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:47:38" (3/3) ... [2018-09-15 15:47:38,060 INFO L112 eAbstractionObserver]: Analyzing ICFG trex04_true-unreach-call_false-termination.i [2018-09-15 15:47:38,070 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:47:38,079 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:47:38,136 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:47:38,137 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:47:38,137 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:47:38,138 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:47:38,138 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:47:38,138 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:47:38,138 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:47:38,138 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:47:38,139 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:47:38,163 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-09-15 15:47:38,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-15 15:47:38,170 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:47:38,171 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:47:38,172 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:47:38,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1294249659, now seen corresponding path program 1 times [2018-09-15 15:47:38,181 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:47:38,182 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-15 15:47:38,184 INFO L202 CegarAbsIntRunner]: [0], [18], [22], [25], [34], [36], [42], [48], [60], [64], [67], [69], [75], [76], [77], [83] [2018-09-15 15:47:38,216 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-15 15:47:38,216 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:47:38,289 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:47:38,292 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-15 15:47:38,338 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:47:38,391 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 100% of their original sizes. [2018-09-15 15:47:38,392 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:47:38,422 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:47:38,424 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:47:38,424 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 15:47:38,425 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:47:38,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 15:47:38,436 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 15:47:38,436 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 15:47:38,438 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2018-09-15 15:47:38,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:47:38,503 INFO L93 Difference]: Finished difference Result 53 states and 73 transitions. [2018-09-15 15:47:38,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 15:47:38,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-09-15 15:47:38,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:47:38,515 INFO L225 Difference]: With dead ends: 53 [2018-09-15 15:47:38,515 INFO L226 Difference]: Without dead ends: 34 [2018-09-15 15:47:38,519 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 14 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 15:47:38,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-09-15 15:47:38,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 25. [2018-09-15 15:47:38,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-09-15 15:47:38,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2018-09-15 15:47:38,564 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2018-09-15 15:47:38,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:47:38,564 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2018-09-15 15:47:38,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 15:47:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2018-09-15 15:47:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-15 15:47:38,567 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:47:38,567 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:47:38,567 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:47:38,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1720438887, now seen corresponding path program 1 times [2018-09-15 15:47:38,568 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:47:38,568 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-15 15:47:38,569 INFO L202 CegarAbsIntRunner]: [0], [18], [22], [25], [34], [36], [42], [48], [52], [56], [64], [67], [69], [75], [76], [77], [83] [2018-09-15 15:47:38,571 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-15 15:47:38,571 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:47:38,585 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 15:47:38,585 INFO L272 AbstractInterpreter]: Visited 17 different actions 17 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-15 15:47:38,628 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 15:47:38,656 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 15:47:38,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 03:47:38 BoogieIcfgContainer [2018-09-15 15:47:38,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 15:47:38,658 INFO L168 Benchmark]: Toolchain (without parser) took 1554.32 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 710.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -718.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 15:47:38,660 INFO L168 Benchmark]: CDTParser took 0.22 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 15:47:38,662 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.63 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 15:47:38,662 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.24 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 15:47:38,663 INFO L168 Benchmark]: Boogie Preprocessor took 25.83 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 15:47:38,664 INFO L168 Benchmark]: RCFGBuilder took 609.64 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 710.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -760.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-09-15 15:47:38,667 INFO L168 Benchmark]: TraceAbstraction took 604.60 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2018-09-15 15:47:38,675 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 25.24 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 25.83 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 609.64 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 710.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -760.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 604.60 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 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: [L21] int d = 1; [L22] int x = __VERIFIER_nondet_int(); [L23] COND FALSE !(!(x <= 1000000 && x >= -1000000)) [L24] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L24] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L25] COND TRUE \read(c1) [L25] d = d - 1 [L26] COND FALSE !(\read(c2)) [L27] c1=__VERIFIER_nondet_bool() [L27] c2=__VERIFIER_nondet_bool() [L28] COND FALSE !(\read(c1)) [L29] COND FALSE !(\read(c2)) [L30] COND FALSE !(x>0) [L34] CALL __VERIFIER_assert(x<=0) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. UNKNOWN Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 12 SDslu, 35 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.8222222222222222 AbsIntWeakeningRatio, 0.5333333333333333 AbsIntAvgWeakeningVarsNumRemoved, 0.4 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/trex04_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_15-47-38-691.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/trex04_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_15-47-38-691.csv Received shutdown request...