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.epf -i ../../../trunk/examples/svcomp/loops/trex03_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 04:54:52,379 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 04:54:52,381 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 04:54:52,394 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 04:54:52,394 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 04:54:52,395 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 04:54:52,397 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 04:54:52,399 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 04:54:52,401 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 04:54:52,402 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 04:54:52,403 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 04:54:52,403 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 04:54:52,404 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 04:54:52,405 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 04:54:52,406 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 04:54:52,407 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 04:54:52,408 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 04:54:52,410 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 04:54:52,412 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 04:54:52,414 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 04:54:52,415 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 04:54:52,417 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 04:54:52,420 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 04:54:52,420 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 04:54:52,420 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 04:54:52,421 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 04:54:52,422 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 04:54:52,423 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 04:54:52,424 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 04:54:52,426 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 04:54:52,426 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 04:54:52,427 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 04:54:52,427 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 04:54:52,427 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 04:54:52,435 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 04:54:52,436 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 04:54:52,436 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 04:54:52,468 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 04:54:52,468 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 04:54:52,469 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 04:54:52,470 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 04:54:52,470 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 04:54:52,470 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 04:54:52,470 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 04:54:52,470 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 04:54:52,471 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 04:54:52,471 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 04:54:52,472 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 04:54:52,472 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 04:54:52,473 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 04:54:52,473 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 04:54:52,473 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 04:54:52,473 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 04:54:52,474 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 04:54:52,475 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 04:54:52,476 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 04:54:52,476 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 04:54:52,476 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 04:54:52,476 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 04:54:52,476 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 04:54:52,477 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 04:54:52,477 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 04:54:52,477 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 04:54:52,477 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 04:54:52,477 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 04:54:52,478 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 04:54:52,478 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 04:54:52,478 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 04:54:52,478 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 04:54:52,479 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 04:54:52,479 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 04:54:52,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 04:54:52,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 04:54:52,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 04:54:52,579 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 04:54:52,580 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 04:54:52,580 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03_false-unreach-call_true-termination.i [2018-11-07 04:54:52,658 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b3a050a7/4acb55a5b9b94dd99f39f2eb5313c300/FLAGba2b99724 [2018-11-07 04:54:53,147 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 04:54:53,148 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03_false-unreach-call_true-termination.i [2018-11-07 04:54:53,155 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b3a050a7/4acb55a5b9b94dd99f39f2eb5313c300/FLAGba2b99724 [2018-11-07 04:54:53,169 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b3a050a7/4acb55a5b9b94dd99f39f2eb5313c300 [2018-11-07 04:54:53,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 04:54:53,181 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 04:54:53,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 04:54:53,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 04:54:53,187 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 04:54:53,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:54:53" (1/1) ... [2018-11-07 04:54:53,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c91a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53, skipping insertion in model container [2018-11-07 04:54:53,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:54:53" (1/1) ... [2018-11-07 04:54:53,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 04:54:53,224 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 04:54:53,455 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:54:53,461 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 04:54:53,489 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 04:54:53,509 INFO L193 MainTranslator]: Completed translation [2018-11-07 04:54:53,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53 WrapperNode [2018-11-07 04:54:53,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 04:54:53,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 04:54:53,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 04:54:53,512 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 04:54:53,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53" (1/1) ... [2018-11-07 04:54:53,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53" (1/1) ... [2018-11-07 04:54:53,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 04:54:53,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 04:54:53,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 04:54:53,541 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 04:54:53,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53" (1/1) ... [2018-11-07 04:54:53,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53" (1/1) ... [2018-11-07 04:54:53,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53" (1/1) ... [2018-11-07 04:54:53,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53" (1/1) ... [2018-11-07 04:54:53,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53" (1/1) ... [2018-11-07 04:54:53,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53" (1/1) ... [2018-11-07 04:54:53,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53" (1/1) ... [2018-11-07 04:54:53,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 04:54:53,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 04:54:53,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 04:54:53,586 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 04:54:53,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53" (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 04:54:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 04:54:53,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 04:54:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 04:54:53,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 04:54:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 04:54:53,771 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 04:54:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 04:54:53,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 04:54:54,073 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 04:54:54,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:54:54 BoogieIcfgContainer [2018-11-07 04:54:54,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 04:54:54,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 04:54:54,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 04:54:54,078 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 04:54:54,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:54:53" (1/3) ... [2018-11-07 04:54:54,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b20f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:54:54, skipping insertion in model container [2018-11-07 04:54:54,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:54:53" (2/3) ... [2018-11-07 04:54:54,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b20f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:54:54, skipping insertion in model container [2018-11-07 04:54:54,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:54:54" (3/3) ... [2018-11-07 04:54:54,082 INFO L112 eAbstractionObserver]: Analyzing ICFG trex03_false-unreach-call_true-termination.i [2018-11-07 04:54:54,093 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 04:54:54,101 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 04:54:54,119 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 04:54:54,154 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 04:54:54,154 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 04:54:54,154 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 04:54:54,154 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 04:54:54,154 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 04:54:54,155 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 04:54:54,155 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 04:54:54,155 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 04:54:54,175 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-07 04:54:54,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-07 04:54:54,181 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:54:54,182 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:54:54,185 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:54:54,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:54:54,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1575744449, now seen corresponding path program 1 times [2018-11-07 04:54:54,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:54:54,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:54:54,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:54:54,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:54:54,246 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:54:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 04:54:54,309 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 04:54:54,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 04:54:54,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-07 04:54:54,312 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 04:54:54,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-07 04:54:54,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-07 04:54:54,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 04:54:54,337 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-11-07 04:54:54,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 04:54:54,365 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-11-07 04:54:54,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-07 04:54:54,367 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-07 04:54:54,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 04:54:54,376 INFO L225 Difference]: With dead ends: 34 [2018-11-07 04:54:54,377 INFO L226 Difference]: Without dead ends: 15 [2018-11-07 04:54:54,381 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 04:54:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-07 04:54:54,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-07 04:54:54,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-07 04:54:54,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-11-07 04:54:54,423 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2018-11-07 04:54:54,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 04:54:54,423 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-11-07 04:54:54,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-07 04:54:54,424 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-11-07 04:54:54,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-07 04:54:54,424 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 04:54:54,425 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 04:54:54,426 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 04:54:54,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 04:54:54,427 INFO L82 PathProgramCache]: Analyzing trace with hash 998051845, now seen corresponding path program 1 times [2018-11-07 04:54:54,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 04:54:54,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:54:54,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 04:54:54,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 04:54:54,428 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 04:54:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-07 04:54:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-07 04:54:54,502 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-07 04:54:54,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:54:54 BoogieIcfgContainer [2018-11-07 04:54:54,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 04:54:54,537 INFO L168 Benchmark]: Toolchain (without parser) took 1356.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -750.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2018-11-07 04:54:54,540 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. [2018-11-07 04:54:54,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.20 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. [2018-11-07 04:54:54,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.40 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. [2018-11-07 04:54:54,543 INFO L168 Benchmark]: Boogie Preprocessor took 44.18 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. [2018-11-07 04:54:54,544 INFO L168 Benchmark]: RCFGBuilder took 488.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2018-11-07 04:54:54,545 INFO L168 Benchmark]: TraceAbstraction took 461.61 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: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 7.1 GB. [2018-11-07 04:54:54,554 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 328.20 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 29.40 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 44.18 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 488.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 461.61 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: 45.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L12] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L12] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L13] unsigned int d1=1, d2=1, d3=1; [L14] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L14] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L15] COND FALSE !(x1>0 && x2>0 && x3>0) VAL [c1=4294967298, c2=4294967299, d1=1, d2=1, d3=1, x1=0, x2=4294967297, x3=0] [L23] CALL __VERIFIER_assert(x1==0 && x2==0 && x3==0) VAL [\old(cond)=0] [L3] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...