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/loops/trex04_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 05:01:06,439 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 05:01:06,441 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 05:01:06,460 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 05:01:06,460 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 05:01:06,461 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 05:01:06,463 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 05:01:06,465 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 05:01:06,466 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 05:01:06,467 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 05:01:06,468 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 05:01:06,469 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 05:01:06,470 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 05:01:06,471 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 05:01:06,472 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 05:01:06,473 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 05:01:06,474 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 05:01:06,476 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 05:01:06,478 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 05:01:06,479 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 05:01:06,480 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 05:01:06,482 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 05:01:06,485 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 05:01:06,485 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 05:01:06,485 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 05:01:06,486 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 05:01:06,487 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 05:01:06,489 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 05:01:06,490 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 05:01:06,492 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 05:01:06,492 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 05:01:06,493 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 05:01:06,501 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-19 05:01:06,523 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 05:01:06,523 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 05:01:06,524 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 05:01:06,525 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 05:01:06,525 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 05:01:06,525 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 05:01:06,525 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 05:01:06,525 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 05:01:06,526 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 05:01:06,526 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-19 05:01:06,526 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 05:01:06,526 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 05:01:06,526 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 05:01:06,527 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 05:01:06,527 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 05:01:06,528 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 05:01:06,528 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 05:01:06,528 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 05:01:06,528 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 05:01:06,528 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 05:01:06,529 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 05:01:06,529 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 05:01:06,529 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 05:01:06,529 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 05:01:06,529 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 05:01:06,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 05:01:06,530 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 05:01:06,530 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 05:01:06,530 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 05:01:06,530 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 05:01:06,531 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 05:01:06,531 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 05:01:06,531 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 05:01:06,531 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 05:01:06,531 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 05:01:06,585 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 05:01:06,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 05:01:06,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 05:01:06,612 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 05:01:06,613 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 05:01:06,614 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i [2018-09-19 05:01:06,989 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f094a8ee/4505bb32cd8d46b2983f73ce13dec3ba/FLAG52a15d241 [2018-09-19 05:01:07,180 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 05:01:07,181 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex04_true-unreach-call_false-termination.i [2018-09-19 05:01:07,189 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f094a8ee/4505bb32cd8d46b2983f73ce13dec3ba/FLAG52a15d241 [2018-09-19 05:01:07,207 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f094a8ee/4505bb32cd8d46b2983f73ce13dec3ba [2018-09-19 05:01:07,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 05:01:07,222 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 05:01:07,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:07,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 05:01:07,230 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 05:01:07,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:07" (1/1) ... [2018-09-19 05:01:07,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56aae051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07, skipping insertion in model container [2018-09-19 05:01:07,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 05:01:07" (1/1) ... [2018-09-19 05:01:07,247 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 05:01:07,478 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:07,500 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 05:01:07,513 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 05:01:07,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07 WrapperNode [2018-09-19 05:01:07,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 05:01:07,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:07,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 05:01:07,528 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 05:01:07,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07" (1/1) ... [2018-09-19 05:01:07,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07" (1/1) ... [2018-09-19 05:01:07,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 05:01:07,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 05:01:07,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 05:01:07,551 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 05:01:07,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07" (1/1) ... [2018-09-19 05:01:07,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07" (1/1) ... [2018-09-19 05:01:07,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07" (1/1) ... [2018-09-19 05:01:07,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07" (1/1) ... [2018-09-19 05:01:07,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07" (1/1) ... [2018-09-19 05:01:07,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07" (1/1) ... [2018-09-19 05:01:07,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07" (1/1) ... [2018-09-19 05:01:07,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 05:01:07,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 05:01:07,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 05:01:07,585 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 05:01:07,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 05:01:07,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 05:01:07,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 05:01:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-09-19 05:01:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-09-19 05:01:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 05:01:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 05:01:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 05:01:07,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 05:01:07,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 05:01:07,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 05:01:08,202 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 05:01:08,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:08 BoogieIcfgContainer [2018-09-19 05:01:08,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 05:01:08,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 05:01:08,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 05:01:08,208 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 05:01:08,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 05:01:07" (1/3) ... [2018-09-19 05:01:08,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741e883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:08, skipping insertion in model container [2018-09-19 05:01:08,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 05:01:07" (2/3) ... [2018-09-19 05:01:08,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741e883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 05:01:08, skipping insertion in model container [2018-09-19 05:01:08,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 05:01:08" (3/3) ... [2018-09-19 05:01:08,212 INFO L112 eAbstractionObserver]: Analyzing ICFG trex04_true-unreach-call_false-termination.i [2018-09-19 05:01:08,222 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 05:01:08,233 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 05:01:08,283 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 05:01:08,284 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 05:01:08,285 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 05:01:08,285 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 05:01:08,285 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 05:01:08,285 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 05:01:08,285 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 05:01:08,286 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 05:01:08,286 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 05:01:08,306 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-09-19 05:01:08,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-19 05:01:08,314 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:08,315 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:08,316 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:08,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1294249659, now seen corresponding path program 1 times [2018-09-19 05:01:08,325 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:08,326 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-19 05:01:08,328 INFO L202 CegarAbsIntRunner]: [0], [18], [22], [25], [34], [36], [42], [48], [60], [64], [67], [69], [75], [76], [77], [83] [2018-09-19 05:01:08,362 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:08,363 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:08,437 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 05:01:08,446 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 05:01:08,448 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-19 05:01:08,478 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 05:01:08,532 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 50% of their original sizes. [2018-09-19 05:01:08,532 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 05:01:08,643 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 05:01:08,645 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 05:01:08,645 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-19 05:01:08,645 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 05:01:08,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-19 05:01:08,656 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-19 05:01:08,656 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-19 05:01:08,659 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2018-09-19 05:01:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 05:01:08,842 INFO L93 Difference]: Finished difference Result 60 states and 84 transitions. [2018-09-19 05:01:08,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 05:01:08,844 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-09-19 05:01:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 05:01:08,855 INFO L225 Difference]: With dead ends: 60 [2018-09-19 05:01:08,856 INFO L226 Difference]: Without dead ends: 37 [2018-09-19 05:01:08,860 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-19 05:01:08,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-09-19 05:01:08,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2018-09-19 05:01:08,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-09-19 05:01:08,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2018-09-19 05:01:08,905 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 16 [2018-09-19 05:01:08,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 05:01:08,905 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2018-09-19 05:01:08,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-19 05:01:08,906 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2018-09-19 05:01:08,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-19 05:01:08,908 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 05:01:08,909 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 05:01:08,909 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 05:01:08,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1720438887, now seen corresponding path program 1 times [2018-09-19 05:01:08,910 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 05:01:08,910 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-09-19 05:01:08,910 INFO L202 CegarAbsIntRunner]: [0], [18], [22], [25], [34], [36], [42], [48], [52], [56], [64], [67], [69], [75], [76], [77], [83] [2018-09-19 05:01:08,912 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 05:01:08,913 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 05:01:08,917 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 05:01:08,934 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 05:01:08,934 INFO L272 AbstractInterpreter]: Visited 17 different actions 17 times. Never merged. Never widened. Never found a fixpoint. Largest state had 9 variables. [2018-09-19 05:01:08,964 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 05:01:08,988 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 05:01:08,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 05:01:08 BoogieIcfgContainer [2018-09-19 05:01:08,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 05:01:08,989 INFO L168 Benchmark]: Toolchain (without parser) took 1769.99 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -745.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:08,991 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:08,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:08,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.56 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:08,993 INFO L168 Benchmark]: Boogie Preprocessor took 32.91 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 05:01:08,994 INFO L168 Benchmark]: RCFGBuilder took 619.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -786.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:08,995 INFO L168 Benchmark]: TraceAbstraction took 784.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2018-09-19 05:01:08,999 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 304.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 22.56 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 32.91 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 619.09 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -786.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 784.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 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, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50 SDtfs, 28 SDslu, 61 SDs, 0 SdLazy, 22 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s 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, 0.8666666666666667 AbsIntWeakeningRatio, 0.5333333333333333 AbsIntAvgWeakeningVarsNumRemoved, 0.3333333333333333 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 12 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_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_05-01-09-012.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/trex04_true-unreach-call_false-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_05-01-09-012.csv Received shutdown request...