java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/psyco/psyco_io_1_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:00:16,515 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:00:16,518 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:00:16,530 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:00:16,531 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:00:16,532 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:00:16,533 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:00:16,535 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:00:16,537 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:00:16,538 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:00:16,539 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:00:16,539 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:00:16,540 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:00:16,541 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:00:16,542 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:00:16,545 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:00:16,546 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:00:16,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:00:16,552 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:00:16,554 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:00:16,559 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:00:16,560 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:00:16,562 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:00:16,563 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:00:16,563 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:00:16,564 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:00:16,565 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:00:16,566 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:00:16,566 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:00:16,568 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:00:16,568 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:00:16,569 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 08:00:16,571 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-09-19 08:00:16,586 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:00:16,587 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:00:16,587 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:00:16,588 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:00:16,588 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:00:16,588 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:00:16,588 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:00:16,588 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-19 08:00:16,589 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-09-19 08:00:16,589 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:00:16,589 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:00:16,589 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:00:16,589 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:00:16,590 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:00:16,591 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:00:16,591 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:00:16,591 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:00:16,591 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:00:16,592 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:00:16,592 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:00:16,592 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:00:16,592 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:00:16,592 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:00:16,593 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:00:16,593 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:00:16,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:00:16,593 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:00:16,595 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:00:16,595 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:00:16,595 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:00:16,596 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:00:16,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:00:16,596 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:00:16,596 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:00:16,596 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:00:16,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:00:16,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:00:16,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:00:16,686 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:00:16,686 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:00:16,687 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_io_1_true-unreach-call_false-termination.c [2018-09-19 08:00:17,025 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8480e110e/7300545a9ffb4b38b891d08e77387fa2/FLAGaa18b3c78 [2018-09-19 08:00:17,193 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:00:17,194 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_io_1_true-unreach-call_false-termination.c [2018-09-19 08:00:17,204 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8480e110e/7300545a9ffb4b38b891d08e77387fa2/FLAGaa18b3c78 [2018-09-19 08:00:17,219 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8480e110e/7300545a9ffb4b38b891d08e77387fa2 [2018-09-19 08:00:17,230 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:00:17,232 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:00:17,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:00:17,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:00:17,240 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:00:17,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:00:17" (1/1) ... [2018-09-19 08:00:17,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6177aa10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17, skipping insertion in model container [2018-09-19 08:00:17,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:00:17" (1/1) ... [2018-09-19 08:00:17,257 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:00:17,536 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:00:17,554 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:00:17,578 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:00:17,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17 WrapperNode [2018-09-19 08:00:17,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:00:17,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:00:17,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:00:17,599 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:00:17,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17" (1/1) ... [2018-09-19 08:00:17,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17" (1/1) ... [2018-09-19 08:00:17,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:00:17,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:00:17,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:00:17,630 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:00:17,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17" (1/1) ... [2018-09-19 08:00:17,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17" (1/1) ... [2018-09-19 08:00:17,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17" (1/1) ... [2018-09-19 08:00:17,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17" (1/1) ... [2018-09-19 08:00:17,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17" (1/1) ... [2018-09-19 08:00:17,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17" (1/1) ... [2018-09-19 08:00:17,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17" (1/1) ... [2018-09-19 08:00:17,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:00:17,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:00:17,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:00:17,663 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:00:17,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17" (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 08:00:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:00:17,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:00:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:00:17,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:00:17,807 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:00:17,807 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:00:18,582 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:00:18,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:00:18 BoogieIcfgContainer [2018-09-19 08:00:18,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:00:18,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:00:18,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:00:18,587 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:00:18,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:00:17" (1/3) ... [2018-09-19 08:00:18,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3cc769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:00:18, skipping insertion in model container [2018-09-19 08:00:18,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:00:17" (2/3) ... [2018-09-19 08:00:18,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3cc769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:00:18, skipping insertion in model container [2018-09-19 08:00:18,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:00:18" (3/3) ... [2018-09-19 08:00:18,591 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_io_1_true-unreach-call_false-termination.c [2018-09-19 08:00:18,602 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:00:18,612 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:00:18,667 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:00:18,668 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:00:18,668 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:00:18,668 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:00:18,668 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:00:18,668 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:00:18,669 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:00:18,669 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:00:18,669 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:00:18,688 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-09-19 08:00:18,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 08:00:18,695 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:00:18,696 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:00:18,697 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:00:18,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1125574581, now seen corresponding path program 1 times [2018-09-19 08:00:18,705 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:00:18,706 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 08:00:18,708 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [27], [321], [324], [325], [326] [2018-09-19 08:00:18,736 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-19 08:00:18,737 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:00:18,806 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:00:18,807 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 08:00:18,819 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:00:18,862 INFO L232 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 98% of their original sizes. [2018-09-19 08:00:18,862 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:00:18,882 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:00:18,884 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:00:18,884 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 08:00:18,884 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:00:18,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 08:00:18,898 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 08:00:18,898 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 08:00:18,901 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 3 states. [2018-09-19 08:00:19,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:00:19,149 INFO L93 Difference]: Finished difference Result 139 states and 256 transitions. [2018-09-19 08:00:19,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 08:00:19,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-09-19 08:00:19,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:00:19,162 INFO L225 Difference]: With dead ends: 139 [2018-09-19 08:00:19,163 INFO L226 Difference]: Without dead ends: 64 [2018-09-19 08:00:19,166 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 08:00:19,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-09-19 08:00:19,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-09-19 08:00:19,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-19 08:00:19,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 94 transitions. [2018-09-19 08:00:19,210 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 94 transitions. Word has length 13 [2018-09-19 08:00:19,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:00:19,210 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 94 transitions. [2018-09-19 08:00:19,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 08:00:19,211 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 94 transitions. [2018-09-19 08:00:19,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-19 08:00:19,212 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:00:19,212 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 08:00:19,212 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:00:19,213 INFO L82 PathProgramCache]: Analyzing trace with hash 353166488, now seen corresponding path program 1 times [2018-09-19 08:00:19,213 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:00:19,213 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-19 08:00:19,213 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [39], [42], [45], [48], [321], [324], [325], [326] [2018-09-19 08:00:19,214 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-19 08:00:19,215 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:00:19,225 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:00:19,226 INFO L272 AbstractInterpreter]: Visited 14 different actions 17 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 08:00:19,234 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:00:19,256 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 95.38% of their original sizes. [2018-09-19 08:00:19,256 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:00:19,349 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:00:19,349 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:00:19,349 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 08:00:19,350 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:00:19,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 08:00:19,351 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 08:00:19,351 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 08:00:19,352 INFO L87 Difference]: Start difference. First operand 64 states and 94 transitions. Second operand 6 states. [2018-09-19 08:00:19,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:00:19,652 INFO L93 Difference]: Finished difference Result 158 states and 238 transitions. [2018-09-19 08:00:19,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 08:00:19,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-09-19 08:00:19,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:00:19,656 INFO L225 Difference]: With dead ends: 158 [2018-09-19 08:00:19,657 INFO L226 Difference]: Without dead ends: 99 [2018-09-19 08:00:19,658 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-09-19 08:00:19,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-09-19 08:00:19,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 92. [2018-09-19 08:00:19,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-09-19 08:00:19,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 133 transitions. [2018-09-19 08:00:19,676 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 133 transitions. Word has length 19 [2018-09-19 08:00:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:00:19,678 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 133 transitions. [2018-09-19 08:00:19,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 08:00:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 133 transitions. [2018-09-19 08:00:19,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-19 08:00:19,680 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:00:19,680 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:00:19,680 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:00:19,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1283208776, now seen corresponding path program 1 times [2018-09-19 08:00:19,681 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:00:19,681 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-09-19 08:00:19,682 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [39], [42], [45], [48], [86], [89], [105], [121], [137], [153], [168], [171], [174], [179], [321], [324], [325], [326] [2018-09-19 08:00:19,684 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-09-19 08:00:19,684 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:00:19,716 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 08:00:19,717 INFO L272 AbstractInterpreter]: Visited 28 different actions 48 times. Merged at 16 different actions 17 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 32 variables. [2018-09-19 08:00:19,726 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 08:00:19,743 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 08:00:19,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:00:19 BoogieIcfgContainer [2018-09-19 08:00:19,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:00:19,745 INFO L168 Benchmark]: Toolchain (without parser) took 2514.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -711.5 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:00:19,747 INFO L168 Benchmark]: CDTParser took 0.21 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 08:00:19,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.24 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 08:00:19,748 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.88 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 08:00:19,749 INFO L168 Benchmark]: Boogie Preprocessor took 32.98 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 08:00:19,749 INFO L168 Benchmark]: RCFGBuilder took 919.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.4 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. [2018-09-19 08:00:19,750 INFO L168 Benchmark]: TraceAbstraction took 1160.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 53.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 7.1 GB. [2018-09-19 08:00:19,754 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 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 364.24 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 30.88 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 32.98 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 919.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.4 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1160.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 53.3 MB). Peak memory consumption was 53.3 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 FALSE !(q == 1) [L105] COND TRUE q == 2 [L106] COND FALSE !(__VERIFIER_nondet_int()) [L122] COND FALSE !(__VERIFIER_nondet_int()) [L138] COND FALSE !(__VERIFIER_nondet_int()) [L154] COND FALSE !(__VERIFIER_nondet_int()) [L170] COND FALSE !(__VERIFIER_nondet_int()) [L186] COND TRUE __VERIFIER_nondet_int() [L188] COND TRUE ((P2 != 1) && (P1 != 0)) [L190] method_id = 5 [L192] COND FALSE !((((this_sink != 0) && (P1 != 0)) && ((P2 != 1) && (P1 != 0)))) [L196] q = 3 [L198] this_sink=P1 [L198] this_sinkConnected=1 [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 TRUE __VERIFIER_nondet_int() [L56] COND TRUE 1 [L58] method_id = 4 [L60] COND TRUE (this_sink != 0) [L343] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 73 locations, 1 error locations. UNKNOWN Result, 1.0s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 189 SDtfs, 107 SDslu, 265 SDs, 0 SdLazy, 93 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9404166666666669 AbsIntWeakeningRatio, 1.2666666666666666 AbsIntAvgWeakeningVarsNumRemoved, 8.7 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 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_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_08-00-19-767.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_CON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_08-00-19-767.csv Received shutdown request...