java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-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-d380424 [2018-10-24 12:05:10,038 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 12:05:10,041 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 12:05:10,058 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 12:05:10,058 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 12:05:10,060 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 12:05:10,061 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 12:05:10,064 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 12:05:10,066 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 12:05:10,067 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 12:05:10,076 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 12:05:10,076 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 12:05:10,080 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 12:05:10,082 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 12:05:10,083 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 12:05:10,083 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 12:05:10,087 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 12:05:10,088 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 12:05:10,095 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 12:05:10,097 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 12:05:10,100 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 12:05:10,102 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 12:05:10,105 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 12:05:10,105 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 12:05:10,105 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 12:05:10,107 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 12:05:10,107 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 12:05:10,108 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 12:05:10,109 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 12:05:10,110 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 12:05:10,110 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 12:05:10,111 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 12:05:10,111 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 12:05:10,111 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 12:05:10,112 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 12:05:10,113 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 12:05:10,113 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 12:05:10,128 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 12:05:10,128 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 12:05:10,129 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 12:05:10,129 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 12:05:10,130 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 12:05:10,130 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 12:05:10,130 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 12:05:10,130 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 12:05:10,130 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 12:05:10,131 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 12:05:10,131 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 12:05:10,131 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 12:05:10,132 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 12:05:10,132 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 12:05:10,132 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 12:05:10,132 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 12:05:10,132 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 12:05:10,133 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 12:05:10,133 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 12:05:10,133 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 12:05:10,133 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 12:05:10,133 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 12:05:10,134 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 12:05:10,134 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 12:05:10,134 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 12:05:10,134 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 12:05:10,134 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 12:05:10,135 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 12:05:10,135 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 12:05:10,135 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 12:05:10,135 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 12:05:10,135 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 12:05:10,135 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 12:05:10,136 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 12:05:10,178 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 12:05:10,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 12:05:10,194 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 12:05:10,195 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 12:05:10,196 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 12:05:10,196 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/trex03_false-unreach-call_true-termination.i [2018-10-24 12:05:10,264 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8dd77895a/8f8e9c7198664c88992061222957db0b/FLAG766d3d437 [2018-10-24 12:05:10,677 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 12:05:10,678 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03_false-unreach-call_true-termination.i [2018-10-24 12:05:10,685 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8dd77895a/8f8e9c7198664c88992061222957db0b/FLAG766d3d437 [2018-10-24 12:05:10,700 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8dd77895a/8f8e9c7198664c88992061222957db0b [2018-10-24 12:05:10,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 12:05:10,712 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 12:05:10,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 12:05:10,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 12:05:10,717 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 12:05:10,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:05:10" (1/1) ... [2018-10-24 12:05:10,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a5722cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10, skipping insertion in model container [2018-10-24 12:05:10,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:05:10" (1/1) ... [2018-10-24 12:05:10,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 12:05:10,755 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 12:05:10,937 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:05:10,941 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 12:05:10,962 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:05:10,978 INFO L193 MainTranslator]: Completed translation [2018-10-24 12:05:10,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10 WrapperNode [2018-10-24 12:05:10,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 12:05:10,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 12:05:10,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 12:05:10,980 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 12:05:10,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10" (1/1) ... [2018-10-24 12:05:10,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10" (1/1) ... [2018-10-24 12:05:11,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 12:05:11,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 12:05:11,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 12:05:11,004 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 12:05:11,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10" (1/1) ... [2018-10-24 12:05:11,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10" (1/1) ... [2018-10-24 12:05:11,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10" (1/1) ... [2018-10-24 12:05:11,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10" (1/1) ... [2018-10-24 12:05:11,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10" (1/1) ... [2018-10-24 12:05:11,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10" (1/1) ... [2018-10-24 12:05:11,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10" (1/1) ... [2018-10-24 12:05:11,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 12:05:11,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 12:05:11,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 12:05:11,029 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 12:05:11,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 12:05:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 12:05:11,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 12:05:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 12:05:11,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 12:05:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 12:05:11,166 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 12:05:11,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-24 12:05:11,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-24 12:05:11,524 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 12:05:11,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:05:11 BoogieIcfgContainer [2018-10-24 12:05:11,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 12:05:11,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 12:05:11,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 12:05:11,529 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 12:05:11,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:05:10" (1/3) ... [2018-10-24 12:05:11,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86d3d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:05:11, skipping insertion in model container [2018-10-24 12:05:11,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:05:10" (2/3) ... [2018-10-24 12:05:11,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86d3d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:05:11, skipping insertion in model container [2018-10-24 12:05:11,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:05:11" (3/3) ... [2018-10-24 12:05:11,533 INFO L112 eAbstractionObserver]: Analyzing ICFG trex03_false-unreach-call_true-termination.i [2018-10-24 12:05:11,542 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 12:05:11,550 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 12:05:11,564 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 12:05:11,598 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 12:05:11,599 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 12:05:11,599 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 12:05:11,599 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 12:05:11,599 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 12:05:11,600 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 12:05:11,600 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 12:05:11,600 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 12:05:11,619 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-24 12:05:11,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-24 12:05:11,628 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:05:11,629 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:05:11,631 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:05:11,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:05:11,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1575744449, now seen corresponding path program 1 times [2018-10-24 12:05:11,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:05:11,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:11,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:05:11,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:11,686 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:05:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:05:11,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:05:11,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:05:11,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 12:05:11,746 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:05:11,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 12:05:11,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 12:05:11,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 12:05:11,765 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-10-24 12:05:11,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:05:11,788 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-10-24 12:05:11,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 12:05:11,789 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-10-24 12:05:11,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:05:11,799 INFO L225 Difference]: With dead ends: 34 [2018-10-24 12:05:11,799 INFO L226 Difference]: Without dead ends: 15 [2018-10-24 12:05:11,803 INFO L605 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 [2018-10-24 12:05:11,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-24 12:05:11,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-10-24 12:05:11,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-24 12:05:11,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-10-24 12:05:11,842 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2018-10-24 12:05:11,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:05:11,843 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-10-24 12:05:11,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 12:05:11,843 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-10-24 12:05:11,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-24 12:05:11,844 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:05:11,844 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:05:11,845 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:05:11,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:05:11,845 INFO L82 PathProgramCache]: Analyzing trace with hash 998051845, now seen corresponding path program 1 times [2018-10-24 12:05:11,846 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:05:11,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:11,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:05:11,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:05:11,847 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:05:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-24 12:05:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-24 12:05:11,909 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-24 12:05:11,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:05:11 BoogieIcfgContainer [2018-10-24 12:05:11,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 12:05:11,938 INFO L168 Benchmark]: Toolchain (without parser) took 1226.85 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -730.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 12:05:11,940 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-10-24 12:05:11,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.11 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. [2018-10-24 12:05:11,943 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.34 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. [2018-10-24 12:05:11,943 INFO L168 Benchmark]: Boogie Preprocessor took 25.48 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. [2018-10-24 12:05:11,944 INFO L168 Benchmark]: RCFGBuilder took 495.99 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -772.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-10-24 12:05:11,945 INFO L168 Benchmark]: TraceAbstraction took 409.42 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2018-10-24 12:05:11,951 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 266.11 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 23.34 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 25.48 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 495.99 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -772.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 409.42 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 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...