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_Default-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 04:57:35,162 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:57:35,164 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:57:35,177 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:57:35,177 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:57:35,178 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:57:35,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:57:35,181 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:57:35,183 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:57:35,184 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:57:35,185 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:57:35,185 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:57:35,186 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:57:35,187 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:57:35,188 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:57:35,189 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:57:35,190 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:57:35,192 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:57:35,194 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:57:35,195 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:57:35,196 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:57:35,198 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:57:35,201 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:57:35,201 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:57:35,201 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:57:35,202 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:57:35,203 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:57:35,204 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:57:35,205 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:57:35,206 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:57:35,207 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:57:35,208 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 04:57:35,210 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 04:57:35,229 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:57:35,230 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:57:35,231 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:57:35,231 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:57:35,231 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:57:35,232 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:57:35,232 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:57:35,232 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:57:35,232 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:57:35,232 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:57:35,233 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:57:35,233 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:57:35,235 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:57:35,235 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:57:35,235 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:57:35,235 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:57:35,236 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:57:35,236 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:57:35,236 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:57:35,236 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:57:35,238 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:57:35,239 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:57:35,239 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:57:35,239 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:57:35,239 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:57:35,239 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:57:35,240 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:57:35,240 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:57:35,240 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:57:35,240 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:57:35,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:57:35,240 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:57:35,241 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:57:35,241 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:57:35,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:57:35,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:57:35,343 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:57:35,345 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:57:35,345 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:57:35,346 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_io_1_true-unreach-call_false-termination.c [2018-09-19 04:57:35,714 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb54b5bb4/a0ed4986f20f4843a96ddd324f36d9b2/FLAGfc8158ba7 [2018-09-19 04:57:35,912 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:57:35,915 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/psyco/psyco_io_1_true-unreach-call_false-termination.c [2018-09-19 04:57:35,936 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb54b5bb4/a0ed4986f20f4843a96ddd324f36d9b2/FLAGfc8158ba7 [2018-09-19 04:57:35,960 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb54b5bb4/a0ed4986f20f4843a96ddd324f36d9b2 [2018-09-19 04:57:35,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:57:35,979 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:57:35,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:57:35,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:57:35,991 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:57:35,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:57:35" (1/1) ... [2018-09-19 04:57:35,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb9db92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:35, skipping insertion in model container [2018-09-19 04:57:35,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:57:35" (1/1) ... [2018-09-19 04:57:36,008 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:57:36,336 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:57:36,367 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:57:36,403 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:57:36,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36 WrapperNode [2018-09-19 04:57:36,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:57:36,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:57:36,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:57:36,427 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:57:36,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36" (1/1) ... [2018-09-19 04:57:36,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36" (1/1) ... [2018-09-19 04:57:36,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:57:36,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:57:36,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:57:36,467 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:57:36,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36" (1/1) ... [2018-09-19 04:57:36,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36" (1/1) ... [2018-09-19 04:57:36,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36" (1/1) ... [2018-09-19 04:57:36,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36" (1/1) ... [2018-09-19 04:57:36,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36" (1/1) ... [2018-09-19 04:57:36,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36" (1/1) ... [2018-09-19 04:57:36,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36" (1/1) ... [2018-09-19 04:57:36,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:57:36,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:57:36,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:57:36,523 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:57:36,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36" (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 04:57:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:57:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:57:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:57:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:57:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:57:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:57:37,564 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:57:37,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:57:37 BoogieIcfgContainer [2018-09-19 04:57:37,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:57:37,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:57:37,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:57:37,572 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:57:37,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:57:35" (1/3) ... [2018-09-19 04:57:37,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf6ecfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:57:37, skipping insertion in model container [2018-09-19 04:57:37,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:57:36" (2/3) ... [2018-09-19 04:57:37,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf6ecfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:57:37, skipping insertion in model container [2018-09-19 04:57:37,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:57:37" (3/3) ... [2018-09-19 04:57:37,576 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_io_1_true-unreach-call_false-termination.c [2018-09-19 04:57:37,588 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:57:37,598 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:57:37,657 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:57:37,658 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:57:37,659 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:57:37,659 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:57:37,659 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:57:37,659 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:57:37,660 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:57:37,660 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:57:37,660 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:57:37,683 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-09-19 04:57:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-19 04:57:37,691 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:57:37,692 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:57:37,693 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:57:37,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1125574581, now seen corresponding path program 1 times [2018-09-19 04:57:37,702 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:57:37,703 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-09-19 04:57:37,707 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [27], [321], [324], [325], [326] [2018-09-19 04:57:37,766 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:57:37,766 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:57:37,991 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:57:37,993 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 04:57:38,035 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:57:38,257 INFO L232 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 97.85% of their original sizes. [2018-09-19 04:57:38,258 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:57:38,352 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:57:38,354 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:57:38,354 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 04:57:38,354 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:57:38,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 04:57:38,365 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 04:57:38,365 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-19 04:57:38,368 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2018-09-19 04:57:38,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:57:38,583 INFO L93 Difference]: Finished difference Result 139 states and 256 transitions. [2018-09-19 04:57:38,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-19 04:57:38,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-09-19 04:57:38,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:57:38,596 INFO L225 Difference]: With dead ends: 139 [2018-09-19 04:57:38,596 INFO L226 Difference]: Without dead ends: 64 [2018-09-19 04:57:38,600 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-19 04:57:38,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-09-19 04:57:38,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-09-19 04:57:38,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-09-19 04:57:38,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 94 transitions. [2018-09-19 04:57:38,646 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 94 transitions. Word has length 13 [2018-09-19 04:57:38,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:57:38,647 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 94 transitions. [2018-09-19 04:57:38,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 04:57:38,647 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 94 transitions. [2018-09-19 04:57:38,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-19 04:57:38,649 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:57:38,649 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 04:57:38,649 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:57:38,650 INFO L82 PathProgramCache]: Analyzing trace with hash 353166488, now seen corresponding path program 1 times [2018-09-19 04:57:38,650 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:57:38,650 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-19 04:57:38,650 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [18], [21], [24], [29], [36], [39], [42], [45], [48], [321], [324], [325], [326] [2018-09-19 04:57:38,653 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:57:38,653 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:57:38,765 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:57:38,766 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 04:57:38,794 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:57:38,967 INFO L232 lantSequenceWeakener]: Weakened 14 states. On average, predicates are now at 95.86% of their original sizes. [2018-09-19 04:57:38,967 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:57:39,305 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:57:39,306 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:57:39,306 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-19 04:57:39,306 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:57:39,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-19 04:57:39,308 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-19 04:57:39,308 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-09-19 04:57:39,308 INFO L87 Difference]: Start difference. First operand 64 states and 94 transitions. Second operand 7 states. [2018-09-19 04:57:39,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:57:39,948 INFO L93 Difference]: Finished difference Result 158 states and 238 transitions. [2018-09-19 04:57:39,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-19 04:57:39,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-09-19 04:57:39,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:57:39,951 INFO L225 Difference]: With dead ends: 158 [2018-09-19 04:57:39,951 INFO L226 Difference]: Without dead ends: 99 [2018-09-19 04:57:39,954 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-09-19 04:57:39,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-09-19 04:57:39,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 89. [2018-09-19 04:57:39,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-09-19 04:57:39,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 129 transitions. [2018-09-19 04:57:39,968 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 129 transitions. Word has length 19 [2018-09-19 04:57:39,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:57:39,969 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 129 transitions. [2018-09-19 04:57:39,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-19 04:57:39,969 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 129 transitions. [2018-09-19 04:57:39,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-19 04:57:39,971 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:57:39,971 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 04:57:39,971 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:57:39,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1283208776, now seen corresponding path program 1 times [2018-09-19 04:57:39,972 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:57:39,972 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-09-19 04:57:39,972 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 04:57:39,975 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:57:39,975 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:57:40,395 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 04:57:40,395 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 04:57:40,405 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 04:57:40,425 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 04:57:40,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:57:40 BoogieIcfgContainer [2018-09-19 04:57:40,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:57:40,427 INFO L168 Benchmark]: Toolchain (without parser) took 4453.60 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.9 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -206.4 MB). Peak memory consumption was 503.4 MB. Max. memory is 7.1 GB. [2018-09-19 04:57:40,429 INFO L168 Benchmark]: CDTParser took 0.19 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 04:57:40,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.25 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 04:57:40,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.44 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 04:57:40,431 INFO L168 Benchmark]: Boogie Preprocessor took 56.01 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 04:57:40,431 INFO L168 Benchmark]: RCFGBuilder took 1043.26 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -741.3 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. [2018-09-19 04:57:40,432 INFO L168 Benchmark]: TraceAbstraction took 2858.48 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 524.3 MB). Peak memory consumption was 524.3 MB. Max. memory is 7.1 GB. [2018-09-19 04:57:40,437 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 445.25 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 39.44 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 56.01 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 1043.26 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 709.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -741.3 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2858.48 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 524.3 MB). Peak memory consumption was 524.3 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, 2.7s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 186 SDtfs, 92 SDslu, 447 SDs, 0 SdLazy, 113 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.9s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9341538461538461 AbsIntWeakeningRatio, 1.2666666666666666 AbsIntAvgWeakeningVarsNumRemoved, 367.8333333333333 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 10 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_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-57-40-451.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_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-57-40-451.csv Received shutdown request...