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-LIM.epf -i ../../../trunk/examples/svcomp/loops/terminator_02_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 20:27:58,002 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 20:27:58,005 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 20:27:58,019 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 20:27:58,019 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 20:27:58,020 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 20:27:58,022 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 20:27:58,024 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 20:27:58,025 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 20:27:58,026 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 20:27:58,027 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 20:27:58,028 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 20:27:58,028 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 20:27:58,029 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 20:27:58,034 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 20:27:58,035 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 20:27:58,036 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 20:27:58,039 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 20:27:58,044 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 20:27:58,046 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 20:27:58,048 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 20:27:58,049 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 20:27:58,057 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 20:27:58,057 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 20:27:58,057 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 20:27:58,058 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 20:27:58,059 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 20:27:58,061 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 20:27:58,062 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 20:27:58,065 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 20:27:58,066 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 20:27:58,067 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 20:27:58,067 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 20:27:58,067 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 20:27:58,068 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 20:27:58,070 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 20:27:58,071 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-LIM.epf [2018-11-12 20:27:58,096 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 20:27:58,097 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 20:27:58,098 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 20:27:58,099 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 20:27:58,099 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 20:27:58,099 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 20:27:58,099 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 20:27:58,099 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 20:27:58,100 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 20:27:58,100 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 20:27:58,100 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 20:27:58,100 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 20:27:58,100 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 20:27:58,101 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 20:27:58,102 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 20:27:58,102 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 20:27:58,102 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 20:27:58,102 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 20:27:58,102 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 20:27:58,104 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 20:27:58,104 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 20:27:58,104 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 20:27:58,105 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 20:27:58,105 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 20:27:58,105 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 20:27:58,105 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 20:27:58,105 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 20:27:58,106 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 20:27:58,106 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 20:27:58,106 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 20:27:58,107 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 20:27:58,107 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 20:27:58,107 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 20:27:58,107 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 20:27:58,107 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 20:27:58,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 20:27:58,173 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 20:27:58,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 20:27:58,182 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 20:27:58,182 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 20:27:58,183 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02_false-unreach-call_true-termination.i [2018-11-12 20:27:58,252 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38b140927/8f24004bf1a24d98bd190fbe46e45762/FLAGb779df40c [2018-11-12 20:27:58,764 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 20:27:58,765 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02_false-unreach-call_true-termination.i [2018-11-12 20:27:58,771 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38b140927/8f24004bf1a24d98bd190fbe46e45762/FLAGb779df40c [2018-11-12 20:27:58,797 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38b140927/8f24004bf1a24d98bd190fbe46e45762 [2018-11-12 20:27:58,809 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 20:27:58,811 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 20:27:58,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 20:27:58,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 20:27:58,815 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 20:27:58,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:27:58" (1/1) ... [2018-11-12 20:27:58,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f50ab47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:58, skipping insertion in model container [2018-11-12 20:27:58,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:27:58" (1/1) ... [2018-11-12 20:27:58,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 20:27:58,852 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 20:27:59,027 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 20:27:59,031 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 20:27:59,049 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 20:27:59,066 INFO L193 MainTranslator]: Completed translation [2018-11-12 20:27:59,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59 WrapperNode [2018-11-12 20:27:59,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 20:27:59,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 20:27:59,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 20:27:59,068 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 20:27:59,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59" (1/1) ... [2018-11-12 20:27:59,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59" (1/1) ... [2018-11-12 20:27:59,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 20:27:59,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 20:27:59,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 20:27:59,092 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 20:27:59,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59" (1/1) ... [2018-11-12 20:27:59,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59" (1/1) ... [2018-11-12 20:27:59,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59" (1/1) ... [2018-11-12 20:27:59,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59" (1/1) ... [2018-11-12 20:27:59,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59" (1/1) ... [2018-11-12 20:27:59,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59" (1/1) ... [2018-11-12 20:27:59,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59" (1/1) ... [2018-11-12 20:27:59,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 20:27:59,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 20:27:59,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 20:27:59,117 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 20:27:59,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59" (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 [2018-11-12 20:27:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 20:27:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 20:27:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 20:27:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 20:27:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 20:27:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 20:27:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-12 20:27:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-12 20:27:59,499 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 20:27:59,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:27:59 BoogieIcfgContainer [2018-11-12 20:27:59,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 20:27:59,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 20:27:59,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 20:27:59,519 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 20:27:59,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:27:58" (1/3) ... [2018-11-12 20:27:59,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452d70e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:27:59, skipping insertion in model container [2018-11-12 20:27:59,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:27:59" (2/3) ... [2018-11-12 20:27:59,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452d70e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:27:59, skipping insertion in model container [2018-11-12 20:27:59,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:27:59" (3/3) ... [2018-11-12 20:27:59,527 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02_false-unreach-call_true-termination.i [2018-11-12 20:27:59,554 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 20:27:59,572 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 20:27:59,607 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 20:27:59,651 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 20:27:59,652 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 20:27:59,652 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 20:27:59,652 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 20:27:59,652 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 20:27:59,652 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 20:27:59,652 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 20:27:59,653 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 20:27:59,672 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-12 20:27:59,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-12 20:27:59,680 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:27:59,681 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 20:27:59,683 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:27:59,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:27:59,690 INFO L82 PathProgramCache]: Analyzing trace with hash -147882559, now seen corresponding path program 1 times [2018-11-12 20:27:59,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:27:59,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:27:59,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:27:59,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:27:59,740 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:27:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:27:59,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 20:27:59,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 20:27:59,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-12 20:27:59,807 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 20:27:59,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-12 20:27:59,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-12 20:27:59,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-12 20:27:59,827 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-11-12 20:27:59,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 20:27:59,850 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-11-12 20:27:59,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-12 20:27:59,851 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-12 20:27:59,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 20:27:59,861 INFO L225 Difference]: With dead ends: 32 [2018-11-12 20:27:59,861 INFO L226 Difference]: Without dead ends: 13 [2018-11-12 20:27:59,865 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 [2018-11-12 20:27:59,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-12 20:27:59,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-12 20:27:59,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-12 20:27:59,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-11-12 20:27:59,904 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2018-11-12 20:27:59,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 20:27:59,905 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-11-12 20:27:59,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-12 20:27:59,906 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-11-12 20:27:59,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-12 20:27:59,907 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:27:59,907 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 20:27:59,907 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:27:59,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:27:59,908 INFO L82 PathProgramCache]: Analyzing trace with hash -717461825, now seen corresponding path program 1 times [2018-11-12 20:27:59,908 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:27:59,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:27:59,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:27:59,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:27:59,910 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:27:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-12 20:27:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-12 20:27:59,952 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-12 20:27:59,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:27:59 BoogieIcfgContainer [2018-11-12 20:27:59,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 20:27:59,977 INFO L168 Benchmark]: Toolchain (without parser) took 1167.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -735.7 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2018-11-12 20:27:59,979 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-11-12 20:27:59,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.13 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. [2018-11-12 20:27:59,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.46 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. [2018-11-12 20:27:59,981 INFO L168 Benchmark]: Boogie Preprocessor took 24.91 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. [2018-11-12 20:27:59,982 INFO L168 Benchmark]: RCFGBuilder took 389.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2018-11-12 20:27:59,983 INFO L168 Benchmark]: TraceAbstraction took 468.83 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: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2018-11-12 20:27:59,988 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 256.13 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 23.46 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 24.91 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 389.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 468.83 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: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int x=__VERIFIER_nondet_int(); [L15] int y=__VERIFIER_nondet_int(); [L16] int z=__VERIFIER_nondet_int(); [L18] COND FALSE !(x<100 && 100