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/psyco/psyco_io_1_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 06:47:11,613 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 06:47:11,615 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 06:47:11,627 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 06:47:11,628 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 06:47:11,629 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 06:47:11,632 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 06:47:11,635 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 06:47:11,637 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 06:47:11,638 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 06:47:11,639 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 06:47:11,639 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 06:47:11,640 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 06:47:11,641 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 06:47:11,642 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 06:47:11,643 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 06:47:11,644 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 06:47:11,646 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 06:47:11,651 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 06:47:11,652 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 06:47:11,654 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 06:47:11,658 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 06:47:11,661 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 06:47:11,662 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 06:47:11,662 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 06:47:11,664 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 06:47:11,665 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 06:47:11,666 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 06:47:11,667 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 06:47:11,672 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 06:47:11,673 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 06:47:11,675 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 06:47:11,675 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 06:47:11,675 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 06:47:11,676 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 06:47:11,677 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 06:47:11,677 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 06:47:11,712 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 06:47:11,712 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 06:47:11,713 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 06:47:11,714 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 06:47:11,714 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 06:47:11,714 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 06:47:11,714 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 06:47:11,714 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 06:47:11,714 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 06:47:11,715 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-19 06:47:11,715 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 06:47:11,715 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 06:47:11,715 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 06:47:11,717 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 06:47:11,717 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 06:47:11,717 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 06:47:11,717 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 06:47:11,719 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 06:47:11,719 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 06:47:11,719 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 06:47:11,720 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 06:47:11,720 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 06:47:11,720 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 06:47:11,720 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 06:47:11,720 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 06:47:11,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 06:47:11,721 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 06:47:11,721 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 06:47:11,721 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 06:47:11,721 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 06:47:11,722 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 06:47:11,722 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 06:47:11,722 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 06:47:11,722 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 06:47:11,722 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 06:47:11,785 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 06:47:11,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 06:47:11,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 06:47:11,810 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 06:47:11,811 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 06:47:11,812 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_io_1_true-unreach-call_false-termination.c [2018-09-19 06:47:12,162 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a727f5f7/793512e25bed471da344fc1b857a6a8f/FLAG36270ff09 [2018-09-19 06:47:12,305 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 06:47:12,306 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_io_1_true-unreach-call_false-termination.c [2018-09-19 06:47:12,321 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a727f5f7/793512e25bed471da344fc1b857a6a8f/FLAG36270ff09 [2018-09-19 06:47:12,336 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a727f5f7/793512e25bed471da344fc1b857a6a8f [2018-09-19 06:47:12,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 06:47:12,350 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 06:47:12,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 06:47:12,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 06:47:12,359 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 06:47:12,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:47:12" (1/1) ... [2018-09-19 06:47:12,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af51a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12, skipping insertion in model container [2018-09-19 06:47:12,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 06:47:12" (1/1) ... [2018-09-19 06:47:12,376 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 06:47:12,652 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:47:12,672 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 06:47:12,697 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 06:47:12,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12 WrapperNode [2018-09-19 06:47:12,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 06:47:12,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 06:47:12,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 06:47:12,719 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 06:47:12,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12" (1/1) ... [2018-09-19 06:47:12,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12" (1/1) ... [2018-09-19 06:47:12,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 06:47:12,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 06:47:12,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 06:47:12,746 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 06:47:12,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12" (1/1) ... [2018-09-19 06:47:12,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12" (1/1) ... [2018-09-19 06:47:12,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12" (1/1) ... [2018-09-19 06:47:12,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12" (1/1) ... [2018-09-19 06:47:12,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12" (1/1) ... [2018-09-19 06:47:12,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12" (1/1) ... [2018-09-19 06:47:12,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12" (1/1) ... [2018-09-19 06:47:12,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 06:47:12,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 06:47:12,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 06:47:12,778 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 06:47:12,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12" (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 06:47:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 06:47:12,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 06:47:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 06:47:12,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 06:47:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 06:47:12,930 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 06:47:13,763 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 06:47:13,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:47:13 BoogieIcfgContainer [2018-09-19 06:47:13,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 06:47:13,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 06:47:13,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 06:47:13,769 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 06:47:13,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 06:47:12" (1/3) ... [2018-09-19 06:47:13,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c7d883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:47:13, skipping insertion in model container [2018-09-19 06:47:13,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 06:47:12" (2/3) ... [2018-09-19 06:47:13,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c7d883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 06:47:13, skipping insertion in model container [2018-09-19 06:47:13,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 06:47:13" (3/3) ... [2018-09-19 06:47:13,773 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_io_1_true-unreach-call_false-termination.c [2018-09-19 06:47:13,784 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 06:47:13,793 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 06:47:13,847 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 06:47:13,848 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 06:47:13,849 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 06:47:13,849 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 06:47:13,849 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 06:47:13,849 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 06:47:13,851 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 06:47:13,851 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 06:47:13,851 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 06:47:13,873 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-09-19 06:47:13,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 06:47:13,880 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:47:13,881 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:47:13,882 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:47:13,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1125574581, now seen corresponding path program 1 times [2018-09-19 06:47:13,890 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:47:13,891 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 06:47:13,894 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [27], [321], [324], [325], [326] [2018-09-19 06:47:13,930 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:47:13,931 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:47:14,011 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:47:14,013 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 06:47:14,025 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:47:14,095 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 97.64% of their original sizes. [2018-09-19 06:47:14,096 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:47:14,122 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:47:14,124 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:47:14,124 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 06:47:14,124 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:47:14,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 06:47:14,134 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 06:47:14,134 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-19 06:47:14,136 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2018-09-19 06:47:14,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:47:14,295 INFO L93 Difference]: Finished difference Result 139 states and 256 transitions. [2018-09-19 06:47:14,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-19 06:47:14,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-09-19 06:47:14,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:47:14,308 INFO L225 Difference]: With dead ends: 139 [2018-09-19 06:47:14,308 INFO L226 Difference]: Without dead ends: 64 [2018-09-19 06:47:14,312 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-19 06:47:14,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-09-19 06:47:14,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-09-19 06:47:14,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-19 06:47:14,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 94 transitions. [2018-09-19 06:47:14,353 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 94 transitions. Word has length 13 [2018-09-19 06:47:14,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:47:14,356 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 94 transitions. [2018-09-19 06:47:14,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 06:47:14,356 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 94 transitions. [2018-09-19 06:47:14,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-19 06:47:14,358 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:47:14,358 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:47:14,359 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:47:14,359 INFO L82 PathProgramCache]: Analyzing trace with hash 353166488, now seen corresponding path program 1 times [2018-09-19 06:47:14,360 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:47:14,360 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-19 06:47:14,360 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [39], [42], [45], [48], [321], [324], [325], [326] [2018-09-19 06:47:14,363 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:47:14,363 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:47:14,394 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 06:47:14,395 INFO L272 AbstractInterpreter]: Visited 17 different actions 20 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 06:47:14,403 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 06:47:14,434 INFO L232 lantSequenceWeakener]: Weakened 16 states. On average, predicates are now at 95.11% of their original sizes. [2018-09-19 06:47:14,434 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 06:47:14,573 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 06:47:14,574 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 06:47:14,574 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 06:47:14,574 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 06:47:14,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 06:47:14,575 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 06:47:14,575 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-09-19 06:47:14,575 INFO L87 Difference]: Start difference. First operand 64 states and 94 transitions. Second operand 9 states. [2018-09-19 06:47:15,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 06:47:15,354 INFO L93 Difference]: Finished difference Result 192 states and 289 transitions. [2018-09-19 06:47:15,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 06:47:15,355 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-09-19 06:47:15,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 06:47:15,357 INFO L225 Difference]: With dead ends: 192 [2018-09-19 06:47:15,357 INFO L226 Difference]: Without dead ends: 131 [2018-09-19 06:47:15,359 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-19 06:47:15,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-09-19 06:47:15,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 118. [2018-09-19 06:47:15,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-09-19 06:47:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 176 transitions. [2018-09-19 06:47:15,376 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 176 transitions. Word has length 19 [2018-09-19 06:47:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 06:47:15,377 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 176 transitions. [2018-09-19 06:47:15,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 06:47:15,377 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 176 transitions. [2018-09-19 06:47:15,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-19 06:47:15,378 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 06:47:15,378 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 06:47:15,379 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 06:47:15,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1925297161, now seen corresponding path program 1 times [2018-09-19 06:47:15,379 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 06:47:15,379 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-19 06:47:15,380 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [39], [54], [57], [60], [63], [321], [324], [325], [326] [2018-09-19 06:47:15,381 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-19 06:47:15,381 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 06:47:15,398 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 06:47:15,398 INFO L272 AbstractInterpreter]: Visited 19 different actions 22 times. Merged at 2 different actions 2 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 27 variables. [2018-09-19 06:47:15,417 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 06:47:15,435 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 06:47:15,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 06:47:15 BoogieIcfgContainer [2018-09-19 06:47:15,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 06:47:15,437 INFO L168 Benchmark]: Toolchain (without parser) took 3089.88 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -723.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2018-09-19 06:47:15,439 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 06:47:15,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.90 ms. Allocated memory is still 1.6 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 06:47:15,440 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.79 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 06:47:15,441 INFO L168 Benchmark]: Boogie Preprocessor took 31.39 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 06:47:15,441 INFO L168 Benchmark]: RCFGBuilder took 986.84 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -799.9 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. [2018-09-19 06:47:15,442 INFO L168 Benchmark]: TraceAbstraction took 1670.92 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: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-09-19 06:47:15,447 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 366.90 ms. Allocated memory is still 1.6 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 26.79 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.39 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 986.84 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -799.9 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1670.92 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: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 343]: 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: [L5] int m_flush = 1; [L6] int m_PipedOutputStream = 2; [L7] int m_close = 3; [L8] int m_write = 4; [L9] int m_connect_1 = 5; [L10] int m_connect_2 = 6; [L15] int q = 0; [L16] int method_id; [L19] int this_sink = 0; [L20] int this_sinkConnected = 0; [L23] COND TRUE 1 [L26] int P1=__VERIFIER_nondet_int(); [L27] int P2=__VERIFIER_nondet_int(); [L28] int P3=__VERIFIER_nondet_int(); [L29] int P4=__VERIFIER_nondet_int(); [L33] COND TRUE q == 0 [L34] COND TRUE __VERIFIER_nondet_int() [L36] COND TRUE 1 [L38] method_id = 2 [L40] COND FALSE !(0) [L44] q = 2 [L46] this_sink=0 [L46] this_sinkConnected=0 [L23] COND TRUE 1 [L26] int P1=__VERIFIER_nondet_int(); [L27] int P2=__VERIFIER_nondet_int(); [L28] int P3=__VERIFIER_nondet_int(); [L29] int P4=__VERIFIER_nondet_int(); [L33] COND FALSE !(q == 0) [L53] COND TRUE q == 1 [L54] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND TRUE __VERIFIER_nondet_int() [L72] COND TRUE ((P2 != 1) && (P1 != 0)) [L74] method_id = 5 [L76] COND TRUE ((P2 != 1) && ((this_sink == 0) && (P1 != 0))) [L343] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 73 locations, 1 error locations. UNKNOWN Result, 1.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 201 SDtfs, 254 SDslu, 551 SDs, 0 SdLazy, 157 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9408479532163745 AbsIntWeakeningRatio, 1.2666666666666666 AbsIntAvgWeakeningVarsNumRemoved, 13.666666666666666 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 13 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/psyco_io_1_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_06-47-15-461.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/psyco_io_1_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_06-47-15-461.csv Received shutdown request...