java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 16:47:12,200 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 16:47:12,202 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 16:47:12,217 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 16:47:12,217 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 16:47:12,218 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 16:47:12,220 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 16:47:12,221 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 16:47:12,223 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 16:47:12,224 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 16:47:12,225 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 16:47:12,225 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 16:47:12,226 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 16:47:12,227 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 16:47:12,228 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 16:47:12,229 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 16:47:12,230 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 16:47:12,232 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 16:47:12,233 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 16:47:12,235 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 16:47:12,236 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 16:47:12,237 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 16:47:12,240 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 16:47:12,240 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 16:47:12,240 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 16:47:12,241 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 16:47:12,242 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 16:47:12,243 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 16:47:12,244 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 16:47:12,245 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 16:47:12,246 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 16:47:12,247 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 16:47:12,247 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 16:47:12,247 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 16:47:12,248 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 16:47:12,251 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 16:47:12,251 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-11-07 16:47:12,278 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 16:47:12,279 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 16:47:12,279 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 16:47:12,280 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 16:47:12,280 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 16:47:12,280 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 16:47:12,280 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 16:47:12,280 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 16:47:12,281 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 16:47:12,281 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 16:47:12,281 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 16:47:12,281 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 16:47:12,282 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 16:47:12,282 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 16:47:12,282 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 16:47:12,282 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 16:47:12,283 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 16:47:12,283 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 16:47:12,283 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 16:47:12,283 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 16:47:12,283 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 16:47:12,284 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 16:47:12,284 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 16:47:12,284 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 16:47:12,284 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 16:47:12,284 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 16:47:12,285 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 16:47:12,285 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 16:47:12,285 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 16:47:12,285 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 16:47:12,285 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 16:47:12,286 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 16:47:12,286 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 16:47:12,286 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 16:47:12,333 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 16:47:12,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 16:47:12,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 16:47:12,355 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 16:47:12,356 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 16:47:12,356 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-07 16:47:12,417 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8753cb487/f973a4f873414cf9ba131671a7316971/FLAG9fd883213 [2018-11-07 16:47:12,878 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 16:47:12,878 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-07 16:47:12,885 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8753cb487/f973a4f873414cf9ba131671a7316971/FLAG9fd883213 [2018-11-07 16:47:12,900 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8753cb487/f973a4f873414cf9ba131671a7316971 [2018-11-07 16:47:12,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 16:47:12,915 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 16:47:12,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 16:47:12,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 16:47:12,921 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 16:47:12,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:47:12" (1/1) ... [2018-11-07 16:47:12,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cedeeed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:12, skipping insertion in model container [2018-11-07 16:47:12,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:47:12" (1/1) ... [2018-11-07 16:47:12,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 16:47:12,963 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 16:47:13,150 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 16:47:13,156 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 16:47:13,179 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 16:47:13,195 INFO L193 MainTranslator]: Completed translation [2018-11-07 16:47:13,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13 WrapperNode [2018-11-07 16:47:13,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 16:47:13,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 16:47:13,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 16:47:13,197 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 16:47:13,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13" (1/1) ... [2018-11-07 16:47:13,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13" (1/1) ... [2018-11-07 16:47:13,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 16:47:13,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 16:47:13,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 16:47:13,222 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 16:47:13,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13" (1/1) ... [2018-11-07 16:47:13,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13" (1/1) ... [2018-11-07 16:47:13,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13" (1/1) ... [2018-11-07 16:47:13,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13" (1/1) ... [2018-11-07 16:47:13,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13" (1/1) ... [2018-11-07 16:47:13,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13" (1/1) ... [2018-11-07 16:47:13,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13" (1/1) ... [2018-11-07 16:47:13,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 16:47:13,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 16:47:13,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 16:47:13,248 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 16:47:13,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 16:47:13,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 16:47:13,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 16:47:13,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 16:47:13,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 16:47:13,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 16:47:13,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 16:47:13,706 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 16:47:13,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:47:13 BoogieIcfgContainer [2018-11-07 16:47:13,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 16:47:13,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 16:47:13,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 16:47:13,712 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 16:47:13,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:47:12" (1/3) ... [2018-11-07 16:47:13,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c344ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:47:13, skipping insertion in model container [2018-11-07 16:47:13,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:47:13" (2/3) ... [2018-11-07 16:47:13,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c344ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:47:13, skipping insertion in model container [2018-11-07 16:47:13,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:47:13" (3/3) ... [2018-11-07 16:47:13,715 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-07 16:47:13,726 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 16:47:13,734 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 16:47:13,753 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 16:47:13,813 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 16:47:13,814 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 16:47:13,814 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 16:47:13,814 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 16:47:13,814 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 16:47:13,815 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 16:47:13,818 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 16:47:13,818 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 16:47:13,846 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-07 16:47:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-07 16:47:13,853 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 16:47:13,854 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 16:47:13,856 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 16:47:13,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:47:13,863 INFO L82 PathProgramCache]: Analyzing trace with hash -696314067, now seen corresponding path program 1 times [2018-11-07 16:47:13,866 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 16:47:13,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:47:13,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:47:13,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:47:13,917 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 16:47:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:47:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:47:14,193 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 16:47:14,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 16:47:14,194 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 16:47:14,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 16:47:14,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 16:47:14,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-07 16:47:14,217 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2018-11-07 16:47:14,689 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-07 16:47:14,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 16:47:14,715 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2018-11-07 16:47:14,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 16:47:14,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-07 16:47:14,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 16:47:14,726 INFO L225 Difference]: With dead ends: 30 [2018-11-07 16:47:14,726 INFO L226 Difference]: Without dead ends: 14 [2018-11-07 16:47:14,729 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 16:47:14,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-07 16:47:14,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-07 16:47:14,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-07 16:47:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-07 16:47:14,764 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-11-07 16:47:14,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 16:47:14,765 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-07 16:47:14,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 16:47:14,765 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-07 16:47:14,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-07 16:47:14,766 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 16:47:14,766 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 16:47:14,767 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 16:47:14,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:47:14,767 INFO L82 PathProgramCache]: Analyzing trace with hash -112838900, now seen corresponding path program 1 times [2018-11-07 16:47:14,767 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 16:47:14,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:47:14,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:47:14,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:47:14,769 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 16:47:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:47:15,090 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2018-11-07 16:47:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:47:15,103 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 16:47:15,103 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 16:47:15,103 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-11-07 16:47:15,105 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [17], [19], [22], [25], [26], [31], [32], [33] [2018-11-07 16:47:15,136 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 16:47:15,136 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 16:47:15,384 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 16:47:15,386 INFO L272 AbstractInterpreter]: Visited 13 different actions 33 times. Merged at 5 different actions 20 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 14 variables. [2018-11-07 16:47:15,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:47:15,418 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 16:47:15,419 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 16:47:15,419 INFO L194 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 [2018-11-07 16:47:15,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:47:15,433 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 16:47:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:47:15,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 16:47:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:47:15,617 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 16:47:15,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:47:15,820 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 16:47:15,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2018-11-07 16:47:15,820 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 16:47:15,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 16:47:15,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 16:47:15,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-11-07 16:47:15,822 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2018-11-07 16:47:16,334 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-07 16:47:16,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 16:47:16,483 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-07 16:47:16,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 16:47:16,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-07 16:47:16,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 16:47:16,485 INFO L225 Difference]: With dead ends: 22 [2018-11-07 16:47:16,485 INFO L226 Difference]: Without dead ends: 16 [2018-11-07 16:47:16,486 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2018-11-07 16:47:16,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-07 16:47:16,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-07 16:47:16,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-07 16:47:16,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-07 16:47:16,492 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-11-07 16:47:16,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 16:47:16,492 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-07 16:47:16,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 16:47:16,492 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-07 16:47:16,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-07 16:47:16,493 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 16:47:16,493 INFO L375 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 16:47:16,494 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 16:47:16,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 16:47:16,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1126058196, now seen corresponding path program 2 times [2018-11-07 16:47:16,494 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 16:47:16,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:47:16,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 16:47:16,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 16:47:16,496 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 16:47:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 16:47:16,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-07 16:47:16,752 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 16:47:16,752 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 16:47:16,753 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-07 16:47:16,753 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 16:47:16,753 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 16:47:16,753 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 16:47:16,764 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-07 16:47:16,764 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-07 16:47:16,786 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-07 16:47:16,786 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-07 16:47:16,789 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 16:47:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:47:16,907 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 16:47:17,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 16:47:17,190 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 16:47:17,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 17 [2018-11-07 16:47:17,191 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 16:47:17,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 16:47:17,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 16:47:17,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-07 16:47:17,194 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 11 states. [2018-11-07 16:47:17,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 16:47:17,451 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-07 16:47:17,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-07 16:47:17,452 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2018-11-07 16:47:17,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 16:47:17,453 INFO L225 Difference]: With dead ends: 19 [2018-11-07 16:47:17,453 INFO L226 Difference]: Without dead ends: 0 [2018-11-07 16:47:17,454 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2018-11-07 16:47:17,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-07 16:47:17,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-07 16:47:17,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-07 16:47:17,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-07 16:47:17,455 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-07 16:47:17,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 16:47:17,455 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-07 16:47:17,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 16:47:17,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-07 16:47:17,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-07 16:47:17,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-07 16:47:17,620 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-07 16:47:17,620 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-07 16:47:17,620 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-07 16:47:17,620 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-07 16:47:17,620 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= 0 ~__return_72~0) (<= ~__return_72~0 0)) [2018-11-07 16:47:17,621 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-07 16:47:17,621 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-07 16:47:17,621 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 8 65) the Hoare annotation is: (or (< 0 |old(~__return_72~0)|) (< |old(~__return_72~0)| 0) (and (<= 0 ~__return_72~0) (<= ~__return_72~0 0))) [2018-11-07 16:47:17,621 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2018-11-07 16:47:17,621 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 65) no Hoare annotation was computed. [2018-11-07 16:47:17,621 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 63) no Hoare annotation was computed. [2018-11-07 16:47:17,622 INFO L425 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2018-11-07 16:47:17,622 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 64) no Hoare annotation was computed. [2018-11-07 16:47:17,622 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 55) no Hoare annotation was computed. [2018-11-07 16:47:17,622 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 65) no Hoare annotation was computed. [2018-11-07 16:47:17,622 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 61) no Hoare annotation was computed. [2018-11-07 16:47:17,622 INFO L421 ceAbstractionStarter]: At program point L35(lines 25 63) the Hoare annotation is: (or (< 0 |old(~__return_72~0)|) (< |old(~__return_72~0)| 0) (let ((.cse1 (+ main_~main__i~0 main_~main__y~0)) (.cse0 (+ main_~main__j~0 main_~main__x~0))) (and (<= .cse0 .cse1) (<= 0 ~__return_72~0) (<= .cse1 .cse0) (<= ~__return_72~0 0)))) [2018-11-07 16:47:17,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:47:17 BoogieIcfgContainer [2018-11-07 16:47:17,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 16:47:17,639 INFO L168 Benchmark]: Toolchain (without parser) took 4725.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -589.1 MB). Peak memory consumption was 161.2 MB. Max. memory is 7.1 GB. [2018-11-07 16:47:17,640 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 16:47:17,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-07 16:47:17,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 16:47:17,642 INFO L168 Benchmark]: Boogie Preprocessor took 25.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 16:47:17,643 INFO L168 Benchmark]: RCFGBuilder took 459.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2018-11-07 16:47:17,644 INFO L168 Benchmark]: TraceAbstraction took 3929.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 200.9 MB). Peak memory consumption was 200.9 MB. Max. memory is 7.1 GB. [2018-11-07 16:47:17,649 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.46 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 25.20 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 25.66 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 459.46 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3929.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 200.9 MB). Peak memory consumption was 200.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 25]: Loop Invariant Derived loop invariant: (0 < \old(__return_72) || \old(__return_72) < 0) || (((main__j + main__x <= main__i + main__y && 0 <= __return_72) && main__i + main__y <= main__j + main__x) && __return_72 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 42 SDslu, 106 SDs, 0 SdLazy, 109 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 1 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 9 NumberOfFragments, 55 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 123 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 5987 SizeOfPredicates, 16 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/21 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...