java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/terminator_02_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 10:44:04,369 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 10:44:04,371 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 10:44:04,383 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 10:44:04,384 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 10:44:04,385 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 10:44:04,386 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 10:44:04,388 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 10:44:04,390 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 10:44:04,391 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 10:44:04,392 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 10:44:04,392 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 10:44:04,393 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 10:44:04,394 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 10:44:04,396 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 10:44:04,397 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 10:44:04,397 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 10:44:04,399 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 10:44:04,402 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 10:44:04,403 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 10:44:04,404 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 10:44:04,406 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 10:44:04,408 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 10:44:04,409 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 10:44:04,409 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 10:44:04,410 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 10:44:04,411 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 10:44:04,412 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 10:44:04,413 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 10:44:04,414 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 10:44:04,415 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 10:44:04,416 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 10:44:04,416 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 10:44:04,416 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 10:44:04,417 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 10:44:04,418 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 10:44:04,419 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 10:44:04,443 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 10:44:04,445 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 10:44:04,445 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 10:44:04,446 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 10:44:04,446 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 10:44:04,446 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 10:44:04,447 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 10:44:04,447 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 10:44:04,447 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 10:44:04,447 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 10:44:04,447 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 10:44:04,448 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 10:44:04,448 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 10:44:04,449 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 10:44:04,449 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 10:44:04,449 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 10:44:04,449 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 10:44:04,450 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 10:44:04,450 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 10:44:04,450 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 10:44:04,450 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 10:44:04,451 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 10:44:04,451 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 10:44:04,451 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 10:44:04,451 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 10:44:04,452 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 10:44:04,452 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 10:44:04,452 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 10:44:04,452 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 10:44:04,452 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 10:44:04,453 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 10:44:04,453 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 10:44:04,453 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 10:44:04,518 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 10:44:04,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 10:44:04,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 10:44:04,544 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 10:44:04,545 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 10:44:04,546 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02_false-unreach-call_true-termination.i [2018-07-24 10:44:04,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e7621c28/4c5f5951488345c2b3806a903167aa00/FLAG47050c2a5 [2018-07-24 10:44:05,080 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 10:44:05,081 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02_false-unreach-call_true-termination.i [2018-07-24 10:44:05,088 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e7621c28/4c5f5951488345c2b3806a903167aa00/FLAG47050c2a5 [2018-07-24 10:44:05,106 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e7621c28/4c5f5951488345c2b3806a903167aa00 [2018-07-24 10:44:05,119 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 10:44:05,121 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 10:44:05,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 10:44:05,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 10:44:05,129 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 10:44:05,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:44:05" (1/1) ... [2018-07-24 10:44:05,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536648b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05, skipping insertion in model container [2018-07-24 10:44:05,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:44:05" (1/1) ... [2018-07-24 10:44:05,297 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 10:44:05,334 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:44:05,350 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 10:44:05,355 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:44:05,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05 WrapperNode [2018-07-24 10:44:05,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 10:44:05,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 10:44:05,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 10:44:05,370 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 10:44:05,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05" (1/1) ... [2018-07-24 10:44:05,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05" (1/1) ... [2018-07-24 10:44:05,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 10:44:05,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 10:44:05,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 10:44:05,393 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 10:44:05,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05" (1/1) ... [2018-07-24 10:44:05,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05" (1/1) ... [2018-07-24 10:44:05,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05" (1/1) ... [2018-07-24 10:44:05,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05" (1/1) ... [2018-07-24 10:44:05,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05" (1/1) ... [2018-07-24 10:44:05,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05" (1/1) ... [2018-07-24 10:44:05,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05" (1/1) ... [2018-07-24 10:44:05,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 10:44:05,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 10:44:05,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 10:44:05,416 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 10:44:05,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05" (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 [2018-07-24 10:44:05,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 10:44:05,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 10:44:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 10:44:05,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 10:44:05,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 10:44:05,495 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 10:44:05,495 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_terminator____false_unreach_call_true_termination_i____VERIFIER_assert [2018-07-24 10:44:05,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_terminator____false_unreach_call_true_termination_i____VERIFIER_assert [2018-07-24 10:44:05,815 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 10:44:05,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:44:05 BoogieIcfgContainer [2018-07-24 10:44:05,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 10:44:05,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 10:44:05,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 10:44:05,832 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 10:44:05,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 10:44:05" (1/3) ... [2018-07-24 10:44:05,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a25815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:44:05, skipping insertion in model container [2018-07-24 10:44:05,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:44:05" (2/3) ... [2018-07-24 10:44:05,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a25815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:44:05, skipping insertion in model container [2018-07-24 10:44:05,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:44:05" (3/3) ... [2018-07-24 10:44:05,841 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02_false-unreach-call_true-termination.i [2018-07-24 10:44:05,864 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 10:44:05,882 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 10:44:05,950 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 10:44:05,951 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 10:44:05,951 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 10:44:05,951 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 10:44:05,951 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 10:44:05,951 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 10:44:05,951 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 10:44:05,952 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 10:44:05,952 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 10:44:05,968 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-07-24 10:44:05,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-24 10:44:05,974 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:05,975 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:05,975 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_terminator____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:05,980 INFO L82 PathProgramCache]: Analyzing trace with hash -147882559, now seen corresponding path program 1 times [2018-07-24 10:44:05,983 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:06,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:06,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:06,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:06,035 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:06,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:06,101 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:44:06,101 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 10:44:06,101 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:44:06,105 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-24 10:44:06,117 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-24 10:44:06,118 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-24 10:44:06,121 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-07-24 10:44:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:06,142 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-07-24 10:44:06,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 10:44:06,143 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-07-24 10:44:06,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:06,154 INFO L225 Difference]: With dead ends: 32 [2018-07-24 10:44:06,154 INFO L226 Difference]: Without dead ends: 13 [2018-07-24 10:44:06,158 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-24 10:44:06,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-07-24 10:44:06,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-07-24 10:44:06,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-24 10:44:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-07-24 10:44:06,201 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2018-07-24 10:44:06,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:06,201 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-07-24 10:44:06,201 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-24 10:44:06,202 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-07-24 10:44:06,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-24 10:44:06,202 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:06,203 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:06,203 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_terminator____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:06,203 INFO L82 PathProgramCache]: Analyzing trace with hash -717461825, now seen corresponding path program 1 times [2018-07-24 10:44:06,204 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:06,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:06,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:06,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:06,205 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-24 10:44:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-24 10:44:06,249 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-07-24 10:44:06,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 10:44:06 BoogieIcfgContainer [2018-07-24 10:44:06,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 10:44:06,278 INFO L168 Benchmark]: Toolchain (without parser) took 1157.93 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -741.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 10:44:06,280 INFO L168 Benchmark]: CDTParser took 0.34 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. [2018-07-24 10:44:06,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.14 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. [2018-07-24 10:44:06,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.60 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. [2018-07-24 10:44:06,282 INFO L168 Benchmark]: Boogie Preprocessor took 22.70 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. [2018-07-24 10:44:06,283 INFO L168 Benchmark]: RCFGBuilder took 400.34 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -772.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2018-07-24 10:44:06,284 INFO L168 Benchmark]: TraceAbstraction took 459.69 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2018-07-24 10:44:06,289 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 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 247.14 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 22.60 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 22.70 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 400.34 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 718.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -772.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 459.69 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int x=__VERIFIER_nondet_int(); [L15] int y=__VERIFIER_nondet_int(); [L16] int z=__VERIFIER_nondet_int(); [L18] COND FALSE !(x<100 && 100