java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/underapprox_true-unreach-call1_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:45:33,275 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:45:33,277 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:45:33,296 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:45:33,296 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:45:33,298 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:45:33,299 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:45:33,301 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:45:33,303 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:45:33,304 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:45:33,305 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:45:33,305 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:45:33,306 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:45:33,307 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:45:33,308 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:45:33,309 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:45:33,310 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:45:33,312 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:45:33,314 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:45:33,316 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:45:33,317 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:45:33,318 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:45:33,321 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-22 15:45:33,331 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-22 15:45:33,351 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:45:33,352 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:45:33,354 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:45:33,354 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:45:33,355 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:45:33,355 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:45:33,356 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:45:33,357 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:45:33,357 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:45:33,357 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:45:33,357 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:45:33,358 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:45:33,358 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:45:33,358 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:45:33,358 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:45:33,358 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:45:33,359 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:45:33,359 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:45:33,360 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:45:33,360 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:45:33,360 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:45:33,360 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:45:33,360 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:45:33,361 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:45:33,361 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:45:33,361 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:45:33,362 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:45:33,362 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:45:33,416 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:45:33,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:45:33,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:45:33,438 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:45:33,438 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:45:33,439 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-acceleration/underapprox_true-unreach-call1_true-termination.i [2018-10-22 15:45:33,515 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/94c12925d/dcc037b073a7480d8230d58385beb2ec/FLAGcabb15c6d [2018-10-22 15:45:34,024 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:45:34,024 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_true-unreach-call1_true-termination.i [2018-10-22 15:45:34,030 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/94c12925d/dcc037b073a7480d8230d58385beb2ec/FLAGcabb15c6d [2018-10-22 15:45:34,044 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/94c12925d/dcc037b073a7480d8230d58385beb2ec [2018-10-22 15:45:34,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:45:34,056 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:45:34,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:45:34,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:45:34,061 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:45:34,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:45:34" (1/1) ... [2018-10-22 15:45:34,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c57dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34, skipping insertion in model container [2018-10-22 15:45:34,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:45:34" (1/1) ... [2018-10-22 15:45:34,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:45:34,098 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:45:34,306 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:45:34,310 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:45:34,331 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:45:34,350 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:45:34,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34 WrapperNode [2018-10-22 15:45:34,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:45:34,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:45:34,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:45:34,353 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:45:34,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34" (1/1) ... [2018-10-22 15:45:34,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34" (1/1) ... [2018-10-22 15:45:34,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:45:34,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:45:34,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:45:34,400 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:45:34,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34" (1/1) ... [2018-10-22 15:45:34,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34" (1/1) ... [2018-10-22 15:45:34,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34" (1/1) ... [2018-10-22 15:45:34,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34" (1/1) ... [2018-10-22 15:45:34,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34" (1/1) ... [2018-10-22 15:45:34,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34" (1/1) ... [2018-10-22 15:45:34,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34" (1/1) ... [2018-10-22 15:45:34,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:45:34,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:45:34,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:45:34,434 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:45:34,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:45:34,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:45:34,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:45:34,811 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:45:34,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:45:34 BoogieIcfgContainer [2018-10-22 15:45:34,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:45:34,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:45:34,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:45:34,816 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:45:34,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:45:34" (1/3) ... [2018-10-22 15:45:34,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7e63c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:45:34, skipping insertion in model container [2018-10-22 15:45:34,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:45:34" (2/3) ... [2018-10-22 15:45:34,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7e63c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:45:34, skipping insertion in model container [2018-10-22 15:45:34,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:45:34" (3/3) ... [2018-10-22 15:45:34,820 INFO L112 eAbstractionObserver]: Analyzing ICFG underapprox_true-unreach-call1_true-termination.i [2018-10-22 15:45:34,831 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:45:34,838 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:45:34,856 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:45:34,885 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:45:34,886 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:45:34,886 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:45:34,886 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:45:34,886 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:45:34,886 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:45:34,886 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:45:34,886 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:45:34,887 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:45:34,901 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-10-22 15:45:34,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-22 15:45:34,908 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:45:34,909 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-22 15:45:34,911 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:45:34,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:45:34,918 INFO L82 PathProgramCache]: Analyzing trace with hash 889783783, now seen corresponding path program 1 times [2018-10-22 15:45:34,920 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:45:34,921 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:45:34,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:34,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:45:34,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:35,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:45:35,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:45:35,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:45:35,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:45:35,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:45:35,048 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-10-22 15:45:35,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:45:35,063 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-10-22 15:45:35,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:45:35,065 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-10-22 15:45:35,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:45:35,075 INFO L225 Difference]: With dead ends: 20 [2018-10-22 15:45:35,075 INFO L226 Difference]: Without dead ends: 8 [2018-10-22 15:45:35,079 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:45:35,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-10-22 15:45:35,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-10-22 15:45:35,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-10-22 15:45:35,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-10-22 15:45:35,112 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-10-22 15:45:35,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:45:35,112 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-10-22 15:45:35,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:45:35,113 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-10-22 15:45:35,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-22 15:45:35,113 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:45:35,113 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:45:35,114 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:45:35,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:45:35,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1805923659, now seen corresponding path program 1 times [2018-10-22 15:45:35,114 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:45:35,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:45:35,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:35,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:45:35,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:35,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:35,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:45:35,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 15:45:35,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 15:45:35,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 15:45:35,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:45:35,241 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2018-10-22 15:45:35,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:45:35,290 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-10-22 15:45:35,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 15:45:35,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-10-22 15:45:35,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:45:35,292 INFO L225 Difference]: With dead ends: 14 [2018-10-22 15:45:35,292 INFO L226 Difference]: Without dead ends: 10 [2018-10-22 15:45:35,302 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:45:35,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-10-22 15:45:35,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-10-22 15:45:35,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-22 15:45:35,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-10-22 15:45:35,309 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-10-22 15:45:35,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:45:35,310 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-10-22 15:45:35,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 15:45:35,310 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-10-22 15:45:35,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-22 15:45:35,313 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:45:35,313 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:45:35,313 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:45:35,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:45:35,314 INFO L82 PathProgramCache]: Analyzing trace with hash 373599493, now seen corresponding path program 1 times [2018-10-22 15:45:35,314 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:45:35,314 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:45:35,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:35,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:45:35,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:35,477 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:45:35,477 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:45:35,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:45:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:35,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:45:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:35,578 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:45:35,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-10-22 15:45:35,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-22 15:45:35,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-22 15:45:35,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-22 15:45:35,580 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2018-10-22 15:45:35,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:45:35,632 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-10-22 15:45:35,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-22 15:45:35,633 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-10-22 15:45:35,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:45:35,634 INFO L225 Difference]: With dead ends: 16 [2018-10-22 15:45:35,634 INFO L226 Difference]: Without dead ends: 12 [2018-10-22 15:45:35,635 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-22 15:45:35,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-22 15:45:35,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-22 15:45:35,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-22 15:45:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-10-22 15:45:35,638 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-10-22 15:45:35,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:45:35,638 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-22 15:45:35,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-22 15:45:35,639 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-10-22 15:45:35,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-22 15:45:35,639 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:45:35,640 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2018-10-22 15:45:35,640 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:45:35,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:45:35,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1700389313, now seen corresponding path program 2 times [2018-10-22 15:45:35,641 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:45:35,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:45:35,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:35,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:45:35,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:35,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:35,758 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:45:35,758 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:45:35,775 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-22 15:45:35,796 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-22 15:45:35,796 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:45:35,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:45:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:35,852 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:45:35,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-10-22 15:45:35,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 15:45:35,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 15:45:35,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:45:35,853 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-10-22 15:45:35,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:45:35,957 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-10-22 15:45:35,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 15:45:35,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-10-22 15:45:35,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:45:35,959 INFO L225 Difference]: With dead ends: 18 [2018-10-22 15:45:35,959 INFO L226 Difference]: Without dead ends: 14 [2018-10-22 15:45:35,959 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:45:35,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-22 15:45:35,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-22 15:45:35,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-22 15:45:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-10-22 15:45:35,963 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-10-22 15:45:35,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:45:35,964 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-10-22 15:45:35,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 15:45:35,964 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-10-22 15:45:35,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 15:45:35,965 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:45:35,965 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2018-10-22 15:45:35,965 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:45:35,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:45:35,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1938806535, now seen corresponding path program 3 times [2018-10-22 15:45:35,966 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:45:35,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:45:35,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:35,967 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:45:35,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:36,285 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:45:36,285 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:45:36,296 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-22 15:45:36,366 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-10-22 15:45:36,366 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:45:36,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:45:36,406 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:36,428 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:45:36,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-10-22 15:45:36,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-22 15:45:36,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-22 15:45:36,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-22 15:45:36,430 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2018-10-22 15:45:36,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:45:36,486 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-10-22 15:45:36,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-22 15:45:36,487 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-10-22 15:45:36,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:45:36,488 INFO L225 Difference]: With dead ends: 20 [2018-10-22 15:45:36,488 INFO L226 Difference]: Without dead ends: 16 [2018-10-22 15:45:36,489 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-22 15:45:36,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-10-22 15:45:36,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-10-22 15:45:36,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-10-22 15:45:36,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-10-22 15:45:36,493 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-10-22 15:45:36,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:45:36,493 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-10-22 15:45:36,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-22 15:45:36,494 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-10-22 15:45:36,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-22 15:45:36,494 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:45:36,494 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2018-10-22 15:45:36,495 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:45:36,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:45:36,495 INFO L82 PathProgramCache]: Analyzing trace with hash 870477107, now seen corresponding path program 4 times [2018-10-22 15:45:36,495 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:45:36,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:45:36,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:36,497 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:45:36,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:36,640 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:45:36,641 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:45:36,649 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-22 15:45:36,662 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-22 15:45:36,663 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:45:36,665 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:45:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:36,718 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:45:36,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-10-22 15:45:36,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-22 15:45:36,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-22 15:45:36,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-22 15:45:36,720 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2018-10-22 15:45:36,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:45:36,892 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-10-22 15:45:36,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-22 15:45:36,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-10-22 15:45:36,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:45:36,896 INFO L225 Difference]: With dead ends: 22 [2018-10-22 15:45:36,896 INFO L226 Difference]: Without dead ends: 18 [2018-10-22 15:45:36,896 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-22 15:45:36,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-22 15:45:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-10-22 15:45:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-22 15:45:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-10-22 15:45:36,900 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-10-22 15:45:36,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:45:36,901 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-10-22 15:45:36,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-22 15:45:36,901 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-10-22 15:45:36,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-22 15:45:36,902 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:45:36,902 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1] [2018-10-22 15:45:36,902 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:45:36,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:45:36,903 INFO L82 PathProgramCache]: Analyzing trace with hash -942372115, now seen corresponding path program 5 times [2018-10-22 15:45:36,903 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:45:36,903 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:45:36,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:36,904 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:45:36,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:37,141 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:37,142 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:45:37,142 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:45:37,160 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-22 15:45:37,187 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-10-22 15:45:37,187 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:45:37,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:45:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:45:37,243 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:45:37,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-10-22 15:45:37,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-22 15:45:37,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-22 15:45:37,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-22 15:45:37,247 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2018-10-22 15:45:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:45:37,484 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-10-22 15:45:37,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-22 15:45:37,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-10-22 15:45:37,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:45:37,486 INFO L225 Difference]: With dead ends: 24 [2018-10-22 15:45:37,486 INFO L226 Difference]: Without dead ends: 20 [2018-10-22 15:45:37,486 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-22 15:45:37,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-10-22 15:45:37,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-10-22 15:45:37,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-22 15:45:37,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-10-22 15:45:37,495 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2018-10-22 15:45:37,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:45:37,495 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-10-22 15:45:37,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-22 15:45:37,497 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-10-22 15:45:37,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-22 15:45:37,498 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:45:37,498 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1] [2018-10-22 15:45:37,498 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:45:37,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:45:37,499 INFO L82 PathProgramCache]: Analyzing trace with hash 666247719, now seen corresponding path program 6 times [2018-10-22 15:45:37,499 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:45:37,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:45:37,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:37,501 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:45:37,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:45:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:45:52,431 WARN L179 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-22 15:46:02,853 WARN L179 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 9 [2018-10-22 15:46:05,023 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* 2863311531 c_ULTIMATE.start_main_~y~0) 1431655744))) (<= .cse0 (* 4294967296 (div .cse0 4294967296)))) is different from false [2018-10-22 15:46:09,329 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 20 refuted. 10 times theorem prover too weak. 0 trivial. 12 not checked. [2018-10-22 15:46:09,330 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:09,330 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:09,339 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-10-22 15:46:09,444 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-10-22 15:46:09,444 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:46:09,447 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:19,584 WARN L179 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 23 [2018-10-22 15:46:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:19,620 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:46:19,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-10-22 15:46:19,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-22 15:46:19,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-22 15:46:19,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=193, Unknown=14, NotChecked=28, Total=272 [2018-10-22 15:46:19,621 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 17 states. [2018-10-22 15:46:19,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:19,891 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-10-22 15:46:19,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-22 15:46:19,893 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2018-10-22 15:46:19,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:19,894 INFO L225 Difference]: With dead ends: 26 [2018-10-22 15:46:19,894 INFO L226 Difference]: Without dead ends: 22 [2018-10-22 15:46:19,894 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 41.7s TimeCoverageRelationStatistics Valid=42, Invalid=220, Unknown=14, NotChecked=30, Total=306 [2018-10-22 15:46:19,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-10-22 15:46:19,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-10-22 15:46:19,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-22 15:46:19,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-10-22 15:46:19,899 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2018-10-22 15:46:19,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:19,900 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-10-22 15:46:19,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-22 15:46:19,900 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-10-22 15:46:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-22 15:46:19,901 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:46:19,901 INFO L375 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1] [2018-10-22 15:46:19,901 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:46:19,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:46:19,901 INFO L82 PathProgramCache]: Analyzing trace with hash 361681633, now seen corresponding path program 7 times [2018-10-22 15:46:19,902 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:46:19,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:46:19,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:19,903 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:46:19,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:46:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:20,050 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:20,051 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:46:20,051 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:46:20,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:46:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:46:20,077 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:46:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:46:20,136 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:46:20,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-10-22 15:46:20,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-22 15:46:20,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-22 15:46:20,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-22 15:46:20,138 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2018-10-22 15:46:20,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:46:20,273 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-10-22 15:46:20,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-22 15:46:20,274 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-10-22 15:46:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:46:20,274 INFO L225 Difference]: With dead ends: 22 [2018-10-22 15:46:20,274 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 15:46:20,275 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-22 15:46:20,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 15:46:20,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 15:46:20,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 15:46:20,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 15:46:20,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-10-22 15:46:20,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:46:20,276 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 15:46:20,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-22 15:46:20,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 15:46:20,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 15:46:20,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 15:46:20,382 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:46:20,383 INFO L425 ceAbstractionStarter]: For program point L11-1(lines 11 14) no Hoare annotation was computed. [2018-10-22 15:46:20,383 INFO L421 ceAbstractionStarter]: At program point L11-3(lines 11 14) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~y~0 1) (<= ULTIMATE.start_main_~x~0 0) (<= 1 ULTIMATE.start_main_~y~0) (<= 0 ULTIMATE.start_main_~x~0)) (and (<= 6 ULTIMATE.start_main_~x~0) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1) (= ULTIMATE.start_main_~y~0 (* 64 v_ULTIMATE.start_main_~y~0_6)))) (<= ULTIMATE.start_main_~x~0 6)) (and (<= 5 ULTIMATE.start_main_~x~0) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1) (= (* 32 v_ULTIMATE.start_main_~y~0_6) ULTIMATE.start_main_~y~0))) (<= ULTIMATE.start_main_~x~0 5)) (and (<= ULTIMATE.start_main_~x~0 4) (<= 4 ULTIMATE.start_main_~x~0) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1) (= (* 16 v_ULTIMATE.start_main_~y~0_6) ULTIMATE.start_main_~y~0)))) (and (<= ULTIMATE.start_main_~x~0 3) (<= 3 ULTIMATE.start_main_~x~0) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1) (= ULTIMATE.start_main_~y~0 (* 8 v_ULTIMATE.start_main_~y~0_6))))) (and (<= 1 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 1) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1) (= ULTIMATE.start_main_~y~0 (* 2 v_ULTIMATE.start_main_~y~0_6))))) (and (<= ULTIMATE.start_main_~x~0 2) (<= 2 ULTIMATE.start_main_~x~0) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (= ULTIMATE.start_main_~y~0 (* 4 v_ULTIMATE.start_main_~y~0_6)) (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1))))) [2018-10-22 15:46:20,383 INFO L425 ceAbstractionStarter]: For program point L11-4(lines 11 14) no Hoare annotation was computed. [2018-10-22 15:46:20,383 INFO L425 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-10-22 15:46:20,384 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-10-22 15:46:20,384 INFO L428 ceAbstractionStarter]: At program point L3-2(lines 2 7) the Hoare annotation is: true [2018-10-22 15:46:20,384 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-22 15:46:20,384 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-22 15:46:20,384 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:46:20,384 INFO L425 ceAbstractionStarter]: For program point L8(lines 8 16) no Hoare annotation was computed. [2018-10-22 15:46:20,384 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-10-22 15:46:20,393 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,394 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,399 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,406 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,407 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,407 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,407 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,407 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,408 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,408 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,408 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,409 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,409 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,409 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,409 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,409 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,410 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,410 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,410 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,410 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,411 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:46:20 BoogieIcfgContainer [2018-10-22 15:46:20,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:46:20,415 INFO L168 Benchmark]: Toolchain (without parser) took 46360.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -491.2 MB). Peak memory consumption was 247.5 MB. Max. memory is 7.1 GB. [2018-10-22 15:46:20,416 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-22 15:46:20,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-22 15:46:20,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.60 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:46:20,418 INFO L168 Benchmark]: Boogie Preprocessor took 31.77 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:46:20,419 INFO L168 Benchmark]: RCFGBuilder took 380.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-22 15:46:20,420 INFO L168 Benchmark]: TraceAbstraction took 45601.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 287.3 MB). Peak memory consumption was 287.3 MB. Max. memory is 7.1 GB. [2018-10-22 15:46:20,425 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 294.68 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 46.60 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 31.77 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 380.65 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 45601.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 287.3 MB). Peak memory consumption was 287.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] * 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: 2]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant [2018-10-22 15:46:20,435 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,436 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,436 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,436 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,437 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,437 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,437 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,437 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,437 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,438 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,438 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,438 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,438 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,438 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,439 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,439 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,439 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,439 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,440 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,441 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,441 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,441 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,441 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,442 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,442 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,442 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,442 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,443 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,443 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,443 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,443 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,443 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,444 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,444 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,444 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-22 15:46:20,444 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] Derived loop invariant: ((((((((y <= 1 && x <= 0) && 1 <= y) && 0 <= x) || ((6 <= x && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (1 <= v_ULTIMATE.start_main_~y~0_6 && v_ULTIMATE.start_main_~y~0_6 <= 1) && y == 64 * v_ULTIMATE.start_main_~y~0_6)) && x <= 6)) || ((5 <= x && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (1 <= v_ULTIMATE.start_main_~y~0_6 && v_ULTIMATE.start_main_~y~0_6 <= 1) && 32 * v_ULTIMATE.start_main_~y~0_6 == y)) && x <= 5)) || ((x <= 4 && 4 <= x) && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (1 <= v_ULTIMATE.start_main_~y~0_6 && v_ULTIMATE.start_main_~y~0_6 <= 1) && 16 * v_ULTIMATE.start_main_~y~0_6 == y))) || ((x <= 3 && 3 <= x) && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (1 <= v_ULTIMATE.start_main_~y~0_6 && v_ULTIMATE.start_main_~y~0_6 <= 1) && y == 8 * v_ULTIMATE.start_main_~y~0_6))) || ((1 <= x && x <= 1) && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (1 <= v_ULTIMATE.start_main_~y~0_6 && v_ULTIMATE.start_main_~y~0_6 <= 1) && y == 2 * v_ULTIMATE.start_main_~y~0_6))) || ((x <= 2 && 2 <= x) && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (y == 4 * v_ULTIMATE.start_main_~y~0_6 && 1 <= v_ULTIMATE.start_main_~y~0_6) && v_ULTIMATE.start_main_~y~0_6 <= 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 45.5s OverallTime, 9 OverallIterations, 8 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 90 SDtfs, 1 SDslu, 321 SDs, 0 SdLazy, 279 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 102 SyntacticMatches, 8 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 42.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=8, 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 10 NumberOfFragments, 135 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 43.2s InterpolantComputationTime, 223 NumberOfCodeBlocks, 223 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 207 ConstructedInterpolants, 14 QuantifiedInterpolants, 20153 SizeOfPredicates, 8 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 28/336 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...