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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 15:15:26,387 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 15:15:26,390 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 15:15:26,409 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 15:15:26,411 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 15:15:26,412 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 15:15:26,413 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 15:15:26,416 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 15:15:26,419 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 15:15:26,420 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 15:15:26,421 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 15:15:26,422 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 15:15:26,422 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 15:15:26,425 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 15:15:26,426 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 15:15:26,427 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 15:15:26,428 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 15:15:26,437 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 15:15:26,438 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 15:15:26,440 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 15:15:26,441 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 15:15:26,442 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 15:15:26,444 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 15:15:26,445 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 15:15:26,445 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 15:15:26,446 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 15:15:26,447 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 15:15:26,448 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 15:15:26,449 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 15:15:26,451 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 15:15:26,451 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 15:15:26,452 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 15:15:26,452 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 15:15:26,452 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 15:15:26,453 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 15:15:26,456 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 15:15:26,456 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-11-07 15:15:26,482 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 15:15:26,483 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 15:15:26,484 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 15:15:26,484 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 15:15:26,484 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 15:15:26,485 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 15:15:26,485 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 15:15:26,485 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 15:15:26,486 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 15:15:26,486 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 15:15:26,486 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 15:15:26,486 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 15:15:26,487 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 15:15:26,488 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 15:15:26,488 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 15:15:26,488 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 15:15:26,488 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 15:15:26,489 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 15:15:26,489 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 15:15:26,489 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 15:15:26,489 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 15:15:26,489 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 15:15:26,490 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 15:15:26,491 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 15:15:26,491 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 15:15:26,492 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 15:15:26,492 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 15:15:26,492 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 15:15:26,492 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 15:15:26,492 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 15:15:26,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 15:15:26,493 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 15:15:26,493 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 15:15:26,493 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 15:15:26,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 15:15:26,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 15:15:26,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 15:15:26,570 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 15:15:26,571 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 15:15:26,572 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c [2018-11-07 15:15:26,641 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed682aca/59ae8b485a814a8397e57cfffb95356f/FLAG0bd432146 [2018-11-07 15:15:27,327 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 15:15:27,328 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c [2018-11-07 15:15:27,352 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed682aca/59ae8b485a814a8397e57cfffb95356f/FLAG0bd432146 [2018-11-07 15:15:27,368 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed682aca/59ae8b485a814a8397e57cfffb95356f [2018-11-07 15:15:27,379 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 15:15:27,381 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 15:15:27,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 15:15:27,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 15:15:27,386 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 15:15:27,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:15:27" (1/1) ... [2018-11-07 15:15:27,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d100604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:27, skipping insertion in model container [2018-11-07 15:15:27,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:15:27" (1/1) ... [2018-11-07 15:15:27,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 15:15:27,513 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 15:15:28,505 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 15:15:28,510 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 15:15:28,818 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 15:15:28,840 INFO L193 MainTranslator]: Completed translation [2018-11-07 15:15:28,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28 WrapperNode [2018-11-07 15:15:28,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 15:15:28,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 15:15:28,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 15:15:28,842 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 15:15:28,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28" (1/1) ... [2018-11-07 15:15:29,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28" (1/1) ... [2018-11-07 15:15:29,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 15:15:29,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 15:15:29,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 15:15:29,135 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 15:15:29,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28" (1/1) ... [2018-11-07 15:15:29,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28" (1/1) ... [2018-11-07 15:15:29,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28" (1/1) ... [2018-11-07 15:15:29,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28" (1/1) ... [2018-11-07 15:15:29,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28" (1/1) ... [2018-11-07 15:15:29,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28" (1/1) ... [2018-11-07 15:15:29,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28" (1/1) ... [2018-11-07 15:15:29,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 15:15:29,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 15:15:29,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 15:15:29,285 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 15:15:29,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28" (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 [2018-11-07 15:15:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 15:15:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 15:15:29,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 15:15:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 15:15:29,354 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 15:15:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 15:15:29,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 15:15:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 15:15:29,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 15:15:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 15:15:29,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 15:15:34,987 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 15:15:34,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:15:34 BoogieIcfgContainer [2018-11-07 15:15:34,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 15:15:34,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 15:15:34,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 15:15:34,994 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 15:15:34,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:15:27" (1/3) ... [2018-11-07 15:15:34,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4ad88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:15:34, skipping insertion in model container [2018-11-07 15:15:34,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:15:28" (2/3) ... [2018-11-07 15:15:34,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4ad88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:15:34, skipping insertion in model container [2018-11-07 15:15:34,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:15:34" (3/3) ... [2018-11-07 15:15:34,997 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label56_true-unreach-call.c [2018-11-07 15:15:35,008 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 15:15:35,019 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 15:15:35,037 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 15:15:35,078 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 15:15:35,079 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 15:15:35,079 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 15:15:35,079 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 15:15:35,079 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 15:15:35,079 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 15:15:35,080 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 15:15:35,080 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 15:15:35,114 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 15:15:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-07 15:15:35,123 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:15:35,124 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:15:35,127 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:15:35,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:15:35,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1936473164, now seen corresponding path program 1 times [2018-11-07 15:15:35,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:15:35,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:15:35,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:15:35,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:15:35,192 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:15:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:15:35,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 15:15:35,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 15:15:35,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 15:15:35,664 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:15:35,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 15:15:35,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 15:15:35,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 15:15:35,694 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 15:15:41,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:15:41,382 INFO L93 Difference]: Finished difference Result 1501 states and 2761 transitions. [2018-11-07 15:15:41,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 15:15:41,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2018-11-07 15:15:41,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:15:41,408 INFO L225 Difference]: With dead ends: 1501 [2018-11-07 15:15:41,408 INFO L226 Difference]: Without dead ends: 1057 [2018-11-07 15:15:41,417 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 15:15:41,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2018-11-07 15:15:41,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 744. [2018-11-07 15:15:41,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 15:15:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1125 transitions. [2018-11-07 15:15:41,532 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1125 transitions. Word has length 40 [2018-11-07 15:15:41,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:15:41,532 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1125 transitions. [2018-11-07 15:15:41,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 15:15:41,533 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1125 transitions. [2018-11-07 15:15:41,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-11-07 15:15:41,539 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:15:41,539 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:15:41,539 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:15:41,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:15:41,540 INFO L82 PathProgramCache]: Analyzing trace with hash -2019574921, now seen corresponding path program 1 times [2018-11-07 15:15:41,540 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:15:41,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:15:41,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:15:41,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:15:41,542 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:15:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:15:41,791 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 15:15:41,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 15:15:41,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 15:15:41,792 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:15:41,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 15:15:41,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 15:15:41,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 15:15:41,795 INFO L87 Difference]: Start difference. First operand 744 states and 1125 transitions. Second operand 4 states. [2018-11-07 15:15:47,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:15:47,175 INFO L93 Difference]: Finished difference Result 2730 states and 4237 transitions. [2018-11-07 15:15:47,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 15:15:47,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2018-11-07 15:15:47,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:15:47,192 INFO L225 Difference]: With dead ends: 2730 [2018-11-07 15:15:47,193 INFO L226 Difference]: Without dead ends: 1992 [2018-11-07 15:15:47,199 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 15:15:47,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2018-11-07 15:15:47,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1990. [2018-11-07 15:15:47,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1990 states. [2018-11-07 15:15:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2757 transitions. [2018-11-07 15:15:47,287 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2757 transitions. Word has length 110 [2018-11-07 15:15:47,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:15:47,288 INFO L480 AbstractCegarLoop]: Abstraction has 1990 states and 2757 transitions. [2018-11-07 15:15:47,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 15:15:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2757 transitions. [2018-11-07 15:15:47,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-11-07 15:15:47,298 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:15:47,299 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 15:15:47,299 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:15:47,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:15:47,300 INFO L82 PathProgramCache]: Analyzing trace with hash 2084991877, now seen corresponding path program 1 times [2018-11-07 15:15:47,300 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:15:47,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:15:47,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:15:47,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:15:47,302 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:15:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:15:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 69 proven. 71 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 15:15:47,792 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 15:15:47,792 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 15:15:47,793 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-11-07 15:15:47,796 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 15:15:47,854 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 15:15:47,854 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 15:15:48,350 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 15:15:50,083 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 15:15:50,086 INFO L272 AbstractInterpreter]: Visited 104 different actions 691 times. Merged at 5 different actions 29 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 15:15:50,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:15:50,136 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 15:15:51,324 INFO L227 lantSequenceWeakener]: Weakened 40 states. On average, predicates are now at 78.18% of their original sizes. [2018-11-07 15:15:51,325 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 15:15:55,382 INFO L415 sIntCurrentIteration]: We unified 215 AI predicates to 215 [2018-11-07 15:15:55,383 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 15:15:55,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 15:15:55,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 25 [2018-11-07 15:15:55,385 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:15:55,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-07 15:15:55,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-07 15:15:55,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2018-11-07 15:15:55,387 INFO L87 Difference]: Start difference. First operand 1990 states and 2757 transitions. Second operand 21 states. Received shutdown request... [2018-11-07 15:19:40,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-07 15:19:40,774 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 15:19:40,780 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 15:19:40,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:19:40 BoogieIcfgContainer [2018-11-07 15:19:40,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 15:19:40,781 INFO L168 Benchmark]: Toolchain (without parser) took 253401.34 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.0 GB). Peak memory consumption was 601.2 MB. Max. memory is 7.1 GB. [2018-11-07 15:19:40,784 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-11-07 15:19:40,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1458.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-11-07 15:19:40,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 292.55 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -915.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2018-11-07 15:19:40,786 INFO L168 Benchmark]: Boogie Preprocessor took 150.09 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-11-07 15:19:40,787 INFO L168 Benchmark]: RCFGBuilder took 5703.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 301.3 MB). Peak memory consumption was 301.3 MB. Max. memory is 7.1 GB. [2018-11-07 15:19:40,788 INFO L168 Benchmark]: TraceAbstraction took 245790.98 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 325.7 MB. Max. memory is 7.1 GB. [2018-11-07 15:19:40,796 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1458.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 292.55 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 770.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -915.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.09 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5703.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 301.3 MB). Peak memory consumption was 301.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245790.98 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 325.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 106). Cancelled while BasicCegarLoop was constructing difference of abstraction (1990states) and FLOYD_HOARE automaton (currently 26 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (2082 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 245.7s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 236.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 841 SDtfs, 4527 SDslu, 436 SDs, 0 SdLazy, 7059 SolverSat, 1282 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 210.6s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 241 GetRequests, 150 SyntacticMatches, 54 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1990occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9965725578769058 AbsIntWeakeningRatio, 0.12093023255813953 AbsIntAvgWeakeningVarsNumRemoved, 4.246511627906977 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 315 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 366 NumberOfCodeBlocks, 366 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 363 ConstructedInterpolants, 0 QuantifiedInterpolants, 252702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 108/179 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown