java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-acceleration/const_true-unreach-call1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 15:46:15,201 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 15:46:15,203 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 15:46:15,215 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 15:46:15,216 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 15:46:15,217 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 15:46:15,218 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 15:46:15,220 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 15:46:15,221 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 15:46:15,222 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 15:46:15,223 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 15:46:15,224 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 15:46:15,225 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 15:46:15,226 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 15:46:15,227 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 15:46:15,228 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 15:46:15,229 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 15:46:15,231 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 15:46:15,233 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 15:46:15,234 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 15:46:15,235 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 15:46:15,237 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 15:46:15,239 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 15:46:15,239 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 15:46:15,239 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 15:46:15,240 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 15:46:15,241 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 15:46:15,242 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 15:46:15,243 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 15:46:15,246 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 15:46:15,246 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 15:46:15,248 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 15:46:15,248 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 15:46:15,249 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 15:46:15,250 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 15:46:15,250 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 15:46:15,251 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 15:46:15,275 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 15:46:15,275 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 15:46:15,276 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 15:46:15,276 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 15:46:15,276 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 15:46:15,277 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 15:46:15,277 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 15:46:15,277 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 15:46:15,277 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 15:46:15,277 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 15:46:15,278 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 15:46:15,278 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 15:46:15,279 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 15:46:15,279 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 15:46:15,279 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 15:46:15,279 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 15:46:15,279 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 15:46:15,280 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 15:46:15,280 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 15:46:15,280 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 15:46:15,280 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 15:46:15,280 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 15:46:15,281 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 15:46:15,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 15:46:15,281 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 15:46:15,281 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 15:46:15,281 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 15:46:15,282 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 15:46:15,282 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 15:46:15,282 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 15:46:15,282 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 15:46:15,282 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 15:46:15,283 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 15:46:15,328 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 15:46:15,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 15:46:15,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 15:46:15,347 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 15:46:15,347 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 15:46:15,348 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/const_true-unreach-call1.i [2018-09-14 15:46:15,698 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae0f752e/cf79660b6751471aa7b03c3a0a78893c/FLAG230ba5940 [2018-09-14 15:46:15,842 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 15:46:15,842 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/const_true-unreach-call1.i [2018-09-14 15:46:15,849 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae0f752e/cf79660b6751471aa7b03c3a0a78893c/FLAG230ba5940 [2018-09-14 15:46:15,864 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae0f752e/cf79660b6751471aa7b03c3a0a78893c [2018-09-14 15:46:15,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 15:46:15,878 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 15:46:15,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 15:46:15,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 15:46:15,887 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 15:46:15,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 03:46:15" (1/1) ... [2018-09-14 15:46:15,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e85618f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:15, skipping insertion in model container [2018-09-14 15:46:15,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 03:46:15" (1/1) ... [2018-09-14 15:46:15,904 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 15:46:16,100 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 15:46:16,121 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 15:46:16,126 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 15:46:16,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16 WrapperNode [2018-09-14 15:46:16,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 15:46:16,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 15:46:16,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 15:46:16,142 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 15:46:16,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16" (1/1) ... [2018-09-14 15:46:16,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16" (1/1) ... [2018-09-14 15:46:16,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 15:46:16,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 15:46:16,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 15:46:16,165 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 15:46:16,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16" (1/1) ... [2018-09-14 15:46:16,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16" (1/1) ... [2018-09-14 15:46:16,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16" (1/1) ... [2018-09-14 15:46:16,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16" (1/1) ... [2018-09-14 15:46:16,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16" (1/1) ... [2018-09-14 15:46:16,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16" (1/1) ... [2018-09-14 15:46:16,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16" (1/1) ... [2018-09-14 15:46:16,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 15:46:16,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 15:46:16,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 15:46:16,189 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 15:46:16,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 15:46:16,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 15:46:16,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 15:46:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 15:46:16,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 15:46:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 15:46:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 15:46:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-14 15:46:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-14 15:46:16,532 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 15:46:16,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 03:46:16 BoogieIcfgContainer [2018-09-14 15:46:16,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 15:46:16,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 15:46:16,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 15:46:16,538 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 15:46:16,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 03:46:15" (1/3) ... [2018-09-14 15:46:16,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bd2c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 03:46:16, skipping insertion in model container [2018-09-14 15:46:16,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:46:16" (2/3) ... [2018-09-14 15:46:16,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bd2c9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 03:46:16, skipping insertion in model container [2018-09-14 15:46:16,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 03:46:16" (3/3) ... [2018-09-14 15:46:16,542 INFO L112 eAbstractionObserver]: Analyzing ICFG const_true-unreach-call1.i [2018-09-14 15:46:16,552 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 15:46:16,559 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 15:46:16,606 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 15:46:16,607 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 15:46:16,607 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 15:46:16,607 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 15:46:16,607 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 15:46:16,607 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 15:46:16,608 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 15:46:16,608 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 15:46:16,608 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 15:46:16,626 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-14 15:46:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-14 15:46:16,632 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 15:46:16,633 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 15:46:16,635 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 15:46:16,641 INFO L82 PathProgramCache]: Analyzing trace with hash -10373566, now seen corresponding path program 1 times [2018-09-14 15:46:16,644 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 15:46:16,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:46:16,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:46:16,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:46:16,698 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 15:46:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:46:16,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:46:16,752 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 15:46:16,752 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-14 15:46:16,752 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 15:46:16,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-14 15:46:16,767 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-14 15:46:16,768 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-14 15:46:16,770 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-09-14 15:46:16,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 15:46:16,790 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-09-14 15:46:16,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-14 15:46:16,792 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-09-14 15:46:16,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 15:46:16,801 INFO L225 Difference]: With dead ends: 29 [2018-09-14 15:46:16,801 INFO L226 Difference]: Without dead ends: 12 [2018-09-14 15:46:16,805 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 [2018-09-14 15:46:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-09-14 15:46:16,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-09-14 15:46:16,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-09-14 15:46:16,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-09-14 15:46:16,841 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-09-14 15:46:16,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 15:46:16,842 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-09-14 15:46:16,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-14 15:46:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-09-14 15:46:16,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-14 15:46:16,843 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 15:46:16,843 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 15:46:16,843 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 15:46:16,844 INFO L82 PathProgramCache]: Analyzing trace with hash -571410792, now seen corresponding path program 1 times [2018-09-14 15:46:16,844 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 15:46:16,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:46:16,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:46:16,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:46:16,846 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 15:46:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:46:16,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:46:16,992 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 15:46:16,992 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 15:46:16,992 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 15:46:16,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 15:46:16,995 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 15:46:16,995 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 15:46:16,995 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2018-09-14 15:46:17,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 15:46:17,055 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-09-14 15:46:17,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 15:46:17,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-09-14 15:46:17,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 15:46:17,057 INFO L225 Difference]: With dead ends: 19 [2018-09-14 15:46:17,057 INFO L226 Difference]: Without dead ends: 14 [2018-09-14 15:46:17,058 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 15:46:17,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-14 15:46:17,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-09-14 15:46:17,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-14 15:46:17,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-09-14 15:46:17,069 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-09-14 15:46:17,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 15:46:17,069 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-09-14 15:46:17,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 15:46:17,073 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-09-14 15:46:17,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-14 15:46:17,074 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 15:46:17,074 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 15:46:17,074 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 15:46:17,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1625028318, now seen corresponding path program 1 times [2018-09-14 15:46:17,075 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 15:46:17,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:46:17,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:46:17,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:46:17,079 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 15:46:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:46:17,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:46:17,294 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 15:46:17,295 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 15:46:17,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:46:17,314 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 15:46:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:46:17,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 15:46:17,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:46:17,388 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 15:46:17,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:46:17,524 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 15:46:17,525 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 15:46:17,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:46:17,545 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 15:46:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 15:46:17,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 15:46:17,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:46:17,686 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 15:46:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 15:46:18,068 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-09-14 15:46:18,068 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [4, 4, 4] total 12 [2018-09-14 15:46:18,068 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 15:46:18,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 15:46:18,069 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 15:46:18,070 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-09-14 15:46:18,070 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 5 states. [2018-09-14 15:46:18,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 15:46:18,132 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-09-14 15:46:18,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-14 15:46:18,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-09-14 15:46:18,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 15:46:18,133 INFO L225 Difference]: With dead ends: 14 [2018-09-14 15:46:18,133 INFO L226 Difference]: Without dead ends: 0 [2018-09-14 15:46:18,134 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-09-14 15:46:18,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-14 15:46:18,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-14 15:46:18,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-14 15:46:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-14 15:46:18,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-09-14 15:46:18,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 15:46:18,136 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-14 15:46:18,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 15:46:18,136 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-14 15:46:18,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-14 15:46:18,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-14 15:46:18,182 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-14 15:46:18,183 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-14 15:46:18,183 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-14 15:46:18,183 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-14 15:46:18,183 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-14 15:46:18,183 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-14 15:46:18,183 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 8 16) the Hoare annotation is: true [2018-09-14 15:46:18,184 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 8 16) no Hoare annotation was computed. [2018-09-14 15:46:18,184 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 8 16) no Hoare annotation was computed. [2018-09-14 15:46:18,184 INFO L426 ceAbstractionStarter]: For program point L11-1(lines 11 14) no Hoare annotation was computed. [2018-09-14 15:46:18,184 INFO L422 ceAbstractionStarter]: At program point L11-3(lines 11 14) the Hoare annotation is: (or (= main_~x~0 0) (and (<= 0 main_~y~0) (<= main_~y~0 0))) [2018-09-14 15:46:18,184 INFO L422 ceAbstractionStarter]: At program point L11-4(lines 11 14) the Hoare annotation is: (= main_~x~0 0) [2018-09-14 15:46:18,184 INFO L426 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-09-14 15:46:18,184 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-09-14 15:46:18,185 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-09-14 15:46:18,185 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-09-14 15:46:18,185 INFO L426 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-09-14 15:46:18,185 INFO L426 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-09-14 15:46:18,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 03:46:18 BoogieIcfgContainer [2018-09-14 15:46:18,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 15:46:18,197 INFO L168 Benchmark]: Toolchain (without parser) took 2321.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -712.7 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. [2018-09-14 15:46:18,200 INFO L168 Benchmark]: CDTParser took 0.26 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. [2018-09-14 15:46:18,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.70 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-14 15:46:18,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.73 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 15:46:18,202 INFO L168 Benchmark]: Boogie Preprocessor took 22.99 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 15:46:18,203 INFO L168 Benchmark]: RCFGBuilder took 344.95 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -804.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-14 15:46:18,204 INFO L168 Benchmark]: TraceAbstraction took 1662.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2018-09-14 15:46:18,211 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 261.70 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 22.73 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 22.99 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 344.95 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -804.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1662.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x == 0 || (0 <= y && y <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 SDtfs, 1 SDslu, 36 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 19 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 2173 SizeOfPredicates, 3 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 4/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/const_true-unreach-call1.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_15-46-18-226.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/const_true-unreach-call1.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_15-46-18-226.csv Received shutdown request...