java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -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 0.1.23-71425fa [2018-07-21 22:26:49,995 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 22:26:49,997 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 22:26:50,016 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 22:26:50,017 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 22:26:50,018 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 22:26:50,019 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 22:26:50,026 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 22:26:50,027 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 22:26:50,028 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 22:26:50,029 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 22:26:50,029 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 22:26:50,032 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 22:26:50,033 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 22:26:50,034 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 22:26:50,037 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 22:26:50,038 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 22:26:50,040 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 22:26:50,052 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 22:26:50,054 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 22:26:50,055 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 22:26:50,056 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 22:26:50,058 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 22:26:50,071 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-21 22:26:50,093 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 22:26:50,093 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 22:26:50,097 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 22:26:50,097 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-21 22:26:50,097 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-21 22:26:50,098 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-21 22:26:50,098 INFO L133 SettingsManager]: * Use SBE=true [2018-07-21 22:26:50,098 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 22:26:50,098 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 22:26:50,098 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 22:26:50,098 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 22:26:50,099 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 22:26:50,099 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 22:26:50,099 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 22:26:50,099 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 22:26:50,099 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 22:26:50,100 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 22:26:50,101 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 22:26:50,101 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 22:26:50,101 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 22:26:50,101 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 22:26:50,101 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 22:26:50,102 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 22:26:50,102 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 22:26:50,102 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-21 22:26:50,102 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 22:26:50,102 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 22:26:50,102 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 22:26:50,103 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 22:26:50,149 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 22:26:50,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 22:26:50,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 22:26:50,168 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 22:26:50,169 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 22:26:50,169 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/underapprox_true-unreach-call1_true-termination.i [2018-07-21 22:26:50,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/297d76433/2108b922afcb4416a96d0a8d8300ceb5/FLAG57687e4bb [2018-07-21 22:26:50,670 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 22:26:50,671 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_true-unreach-call1_true-termination.i [2018-07-21 22:26:50,678 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/297d76433/2108b922afcb4416a96d0a8d8300ceb5/FLAG57687e4bb [2018-07-21 22:26:50,694 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/297d76433/2108b922afcb4416a96d0a8d8300ceb5 [2018-07-21 22:26:50,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 22:26:50,716 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 22:26:50,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 22:26:50,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 22:26:50,724 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 22:26:50,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:26:50" (1/1) ... [2018-07-21 22:26:50,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e3ea081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50, skipping insertion in model container [2018-07-21 22:26:50,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:26:50" (1/1) ... [2018-07-21 22:26:50,918 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 22:26:50,960 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 22:26:50,977 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 22:26:50,981 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 22:26:50,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50 WrapperNode [2018-07-21 22:26:50,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 22:26:50,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 22:26:50,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 22:26:50,998 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 22:26:51,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50" (1/1) ... [2018-07-21 22:26:51,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50" (1/1) ... [2018-07-21 22:26:51,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 22:26:51,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 22:26:51,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 22:26:51,033 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 22:26:51,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50" (1/1) ... [2018-07-21 22:26:51,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50" (1/1) ... [2018-07-21 22:26:51,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50" (1/1) ... [2018-07-21 22:26:51,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50" (1/1) ... [2018-07-21 22:26:51,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50" (1/1) ... [2018-07-21 22:26:51,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50" (1/1) ... [2018-07-21 22:26:51,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50" (1/1) ... [2018-07-21 22:26:51,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 22:26:51,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 22:26:51,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 22:26:51,061 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 22:26:51,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 22:26:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 22:26:51,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 22:26:51,449 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 22:26:51,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:26:51 BoogieIcfgContainer [2018-07-21 22:26:51,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 22:26:51,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 22:26:51,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 22:26:51,454 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 22:26:51,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:26:50" (1/3) ... [2018-07-21 22:26:51,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68577188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:26:51, skipping insertion in model container [2018-07-21 22:26:51,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:26:50" (2/3) ... [2018-07-21 22:26:51,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68577188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:26:51, skipping insertion in model container [2018-07-21 22:26:51,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:26:51" (3/3) ... [2018-07-21 22:26:51,457 INFO L112 eAbstractionObserver]: Analyzing ICFG underapprox_true-unreach-call1_true-termination.i [2018-07-21 22:26:51,467 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 22:26:51,473 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 22:26:51,510 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 22:26:51,511 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 22:26:51,511 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 22:26:51,511 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 22:26:51,511 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 22:26:51,511 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 22:26:51,511 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 22:26:51,511 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 22:26:51,511 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 22:26:51,522 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-07-21 22:26:51,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-21 22:26:51,526 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 22:26:51,527 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-07-21 22:26:51,527 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 22:26:51,530 INFO L82 PathProgramCache]: Analyzing trace with hash 889783783, now seen corresponding path program 1 times [2018-07-21 22:26:51,532 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 22:26:51,532 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 22:26:51,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:51,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 22:26:51,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 22:26:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:51,641 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 22:26:51,642 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-21 22:26:51,644 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-21 22:26:51,658 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-21 22:26:51,659 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-21 22:26:51,662 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-07-21 22:26:51,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 22:26:51,681 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-07-21 22:26:51,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-21 22:26:51,682 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-07-21 22:26:51,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 22:26:51,691 INFO L225 Difference]: With dead ends: 20 [2018-07-21 22:26:51,691 INFO L226 Difference]: Without dead ends: 8 [2018-07-21 22:26:51,694 INFO L578 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 [2018-07-21 22:26:51,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-21 22:26:51,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-21 22:26:51,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-21 22:26:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-21 22:26:51,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-07-21 22:26:51,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 22:26:51,730 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-21 22:26:51,730 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-21 22:26:51,730 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-21 22:26:51,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-21 22:26:51,731 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 22:26:51,731 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-07-21 22:26:51,731 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 22:26:51,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1805923659, now seen corresponding path program 1 times [2018-07-21 22:26:51,731 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 22:26:51,732 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 22:26:51,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:51,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 22:26:51,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 22:26:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:51,831 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 22:26:51,831 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 22:26:51,833 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 22:26:51,833 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 22:26:51,833 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 22:26:51,834 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2018-07-21 22:26:51,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 22:26:51,881 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-07-21 22:26:51,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 22:26:51,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-07-21 22:26:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 22:26:51,887 INFO L225 Difference]: With dead ends: 14 [2018-07-21 22:26:51,887 INFO L226 Difference]: Without dead ends: 10 [2018-07-21 22:26:51,888 INFO L578 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 [2018-07-21 22:26:51,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-21 22:26:51,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-07-21 22:26:51,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-21 22:26:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-07-21 22:26:51,891 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-07-21 22:26:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 22:26:51,891 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-07-21 22:26:51,891 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 22:26:51,891 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-07-21 22:26:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-21 22:26:51,892 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 22:26:51,892 INFO L358 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 22:26:51,892 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 22:26:51,892 INFO L82 PathProgramCache]: Analyzing trace with hash 373599493, now seen corresponding path program 1 times [2018-07-21 22:26:51,893 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 22:26:51,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 22:26:51,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:51,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 22:26:51,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 22:26:52,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:52,020 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 22:26:52,020 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 22:26:52,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 22:26:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 22:26:52,060 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 22:26:52,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:52,119 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 22:26:52,119 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-07-21 22:26:52,120 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 22:26:52,120 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 22:26:52,120 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-21 22:26:52,120 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2018-07-21 22:26:52,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 22:26:52,147 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-07-21 22:26:52,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 22:26:52,148 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-07-21 22:26:52,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 22:26:52,148 INFO L225 Difference]: With dead ends: 16 [2018-07-21 22:26:52,149 INFO L226 Difference]: Without dead ends: 12 [2018-07-21 22:26:52,149 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-21 22:26:52,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-21 22:26:52,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-07-21 22:26:52,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-21 22:26:52,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-07-21 22:26:52,152 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-07-21 22:26:52,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 22:26:52,155 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-07-21 22:26:52,155 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 22:26:52,155 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-07-21 22:26:52,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-21 22:26:52,156 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 22:26:52,156 INFO L358 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2018-07-21 22:26:52,156 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 22:26:52,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1700389313, now seen corresponding path program 2 times [2018-07-21 22:26:52,157 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 22:26:52,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 22:26:52,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:52,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 22:26:52,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 22:26:52,266 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:52,266 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 22:26:52,266 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 22:26:52,277 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-21 22:26:52,300 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-21 22:26:52,301 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-21 22:26:52,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 22:26:52,332 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:52,353 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 22:26:52,353 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-07-21 22:26:52,353 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 22:26:52,354 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 22:26:52,354 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-21 22:26:52,354 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-07-21 22:26:52,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 22:26:52,435 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-07-21 22:26:52,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-21 22:26:52,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-07-21 22:26:52,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 22:26:52,437 INFO L225 Difference]: With dead ends: 18 [2018-07-21 22:26:52,437 INFO L226 Difference]: Without dead ends: 14 [2018-07-21 22:26:52,437 INFO L578 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 [2018-07-21 22:26:52,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-21 22:26:52,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-21 22:26:52,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-21 22:26:52,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-07-21 22:26:52,442 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-07-21 22:26:52,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 22:26:52,442 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-07-21 22:26:52,443 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 22:26:52,443 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-07-21 22:26:52,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-21 22:26:52,443 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 22:26:52,443 INFO L358 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2018-07-21 22:26:52,444 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 22:26:52,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1938806535, now seen corresponding path program 3 times [2018-07-21 22:26:52,444 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 22:26:52,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 22:26:52,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:52,446 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-21 22:26:52,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 22:26:52,737 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:52,737 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 22:26:52,737 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-21 22:26:52,747 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-21 22:26:52,802 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-07-21 22:26:52,802 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-21 22:26:52,804 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 22:26:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:52,879 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 22:26:52,880 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-07-21 22:26:52,880 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 22:26:52,880 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 22:26:52,880 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-21 22:26:52,881 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2018-07-21 22:26:52,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 22:26:52,918 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-07-21 22:26:52,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-21 22:26:52,919 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-07-21 22:26:52,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 22:26:52,920 INFO L225 Difference]: With dead ends: 20 [2018-07-21 22:26:52,920 INFO L226 Difference]: Without dead ends: 16 [2018-07-21 22:26:52,920 INFO L578 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 [2018-07-21 22:26:52,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-21 22:26:52,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-21 22:26:52,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-21 22:26:52,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-07-21 22:26:52,924 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-07-21 22:26:52,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 22:26:52,924 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-07-21 22:26:52,924 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 22:26:52,925 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-07-21 22:26:52,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-21 22:26:52,925 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 22:26:52,925 INFO L358 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2018-07-21 22:26:52,926 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 22:26:52,926 INFO L82 PathProgramCache]: Analyzing trace with hash 870477107, now seen corresponding path program 4 times [2018-07-21 22:26:52,926 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 22:26:52,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 22:26:52,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:52,927 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-21 22:26:52,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 22:26:53,034 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:53,034 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 22:26:53,034 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-21 22:26:53,041 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-07-21 22:26:53,052 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-07-21 22:26:53,052 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-21 22:26:53,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 22:26:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:53,103 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 22:26:53,103 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-07-21 22:26:53,104 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 22:26:53,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 22:26:53,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-21 22:26:53,104 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2018-07-21 22:26:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 22:26:53,229 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-07-21 22:26:53,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 22:26:53,229 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-07-21 22:26:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 22:26:53,230 INFO L225 Difference]: With dead ends: 22 [2018-07-21 22:26:53,230 INFO L226 Difference]: Without dead ends: 18 [2018-07-21 22:26:53,231 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-21 22:26:53,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-07-21 22:26:53,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-07-21 22:26:53,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-07-21 22:26:53,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-07-21 22:26:53,234 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-07-21 22:26:53,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 22:26:53,235 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-07-21 22:26:53,235 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-21 22:26:53,235 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-07-21 22:26:53,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-21 22:26:53,236 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 22:26:53,236 INFO L358 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1] [2018-07-21 22:26:53,236 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 22:26:53,237 INFO L82 PathProgramCache]: Analyzing trace with hash -942372115, now seen corresponding path program 5 times [2018-07-21 22:26:53,237 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 22:26:53,237 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 22:26:53,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:53,238 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-21 22:26:53,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 22:26:53,424 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:53,425 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 22:26:53,425 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-21 22:26:53,441 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-07-21 22:26:53,463 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-07-21 22:26:53,463 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-21 22:26:53,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 22:26:53,480 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:26:53,500 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 22:26:53,500 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-07-21 22:26:53,500 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 22:26:53,501 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 22:26:53,501 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-21 22:26:53,501 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2018-07-21 22:26:53,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 22:26:53,695 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-07-21 22:26:53,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 22:26:53,699 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-07-21 22:26:53,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 22:26:53,700 INFO L225 Difference]: With dead ends: 24 [2018-07-21 22:26:53,700 INFO L226 Difference]: Without dead ends: 20 [2018-07-21 22:26:53,701 INFO L578 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 [2018-07-21 22:26:53,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-07-21 22:26:53,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-07-21 22:26:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-21 22:26:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-07-21 22:26:53,704 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2018-07-21 22:26:53,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 22:26:53,705 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-07-21 22:26:53,705 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-21 22:26:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-07-21 22:26:53,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-21 22:26:53,705 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 22:26:53,705 INFO L358 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1] [2018-07-21 22:26:53,707 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 22:26:53,707 INFO L82 PathProgramCache]: Analyzing trace with hash 666247719, now seen corresponding path program 6 times [2018-07-21 22:26:53,707 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 22:26:53,707 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 22:26:53,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:53,708 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-21 22:26:53,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:26:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 22:27:15,051 WARN L1010 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* 715827883 c_ULTIMATE.start_main_~y~0) 715827872))) (<= .cse0 (* 2147483648 (div .cse0 2147483648)))) is different from false [2018-07-21 22:27:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 16 refuted. 14 times theorem prover too weak. 0 trivial. 12 not checked. [2018-07-21 22:27:32,613 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 22:27:32,613 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-21 22:27:32,624 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-07-21 22:27:32,670 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-07-21 22:27:32,671 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-21 22:27:32,673 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 22:27:50,796 WARN L169 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 23 [2018-07-21 22:27:50,804 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:27:50,825 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 22:27:50,826 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-07-21 22:27:50,826 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-21 22:27:50,826 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-21 22:27:50,826 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=185, Unknown=22, NotChecked=28, Total=272 [2018-07-21 22:27:50,827 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 17 states. [2018-07-21 22:27:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 22:27:51,026 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-07-21 22:27:51,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-21 22:27:51,027 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2018-07-21 22:27:51,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 22:27:51,027 INFO L225 Difference]: With dead ends: 26 [2018-07-21 22:27:51,028 INFO L226 Difference]: Without dead ends: 22 [2018-07-21 22:27:51,028 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 56.9s TimeCoverageRelationStatistics Valid=43, Invalid=211, Unknown=22, NotChecked=30, Total=306 [2018-07-21 22:27:51,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-21 22:27:51,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-07-21 22:27:51,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-21 22:27:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-07-21 22:27:51,032 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2018-07-21 22:27:51,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 22:27:51,032 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-07-21 22:27:51,033 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-21 22:27:51,033 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-07-21 22:27:51,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-21 22:27:51,033 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 22:27:51,034 INFO L358 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1] [2018-07-21 22:27:51,034 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 22:27:51,034 INFO L82 PathProgramCache]: Analyzing trace with hash 361681633, now seen corresponding path program 7 times [2018-07-21 22:27:51,034 INFO L219 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-21 22:27:51,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-21 22:27:51,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:27:51,036 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-21 22:27:51,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 22:27:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 22:27:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:27:51,409 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 22:27:51,409 INFO L219 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-21 22:27:51,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 22:27:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 22:27:51,439 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 22:27:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 22:27:51,473 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-07-21 22:27:51,474 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-07-21 22:27:51,474 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-21 22:27:51,474 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-21 22:27:51,474 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-07-21 22:27:51,475 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2018-07-21 22:27:51,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 22:27:51,611 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-07-21 22:27:51,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-21 22:27:51,612 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-07-21 22:27:51,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 22:27:51,612 INFO L225 Difference]: With dead ends: 22 [2018-07-21 22:27:51,612 INFO L226 Difference]: Without dead ends: 0 [2018-07-21 22:27:51,613 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-07-21 22:27:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-21 22:27:51,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-21 22:27:51,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-21 22:27:51,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-21 22:27:51,614 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-07-21 22:27:51,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 22:27:51,614 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-21 22:27:51,614 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-21 22:27:51,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-21 22:27:51,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-21 22:27:51,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-21 22:27:51,701 INFO L417 ceAbstractionStarter]: At program point L11''(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))))) [2018-07-21 22:27:51,701 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-07-21 22:27:51,701 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-07-21 22:27:51,701 INFO L421 ceAbstractionStarter]: For program point L11'''(lines 11 14) no Hoare annotation was computed. [2018-07-21 22:27:51,701 INFO L424 ceAbstractionStarter]: At program point L3''(lines 2 7) the Hoare annotation is: true [2018-07-21 22:27:51,701 INFO L421 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-07-21 22:27:51,701 INFO L421 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-07-21 22:27:51,701 INFO L421 ceAbstractionStarter]: For program point L8(lines 8 16) no Hoare annotation was computed. [2018-07-21 22:27:51,702 INFO L421 ceAbstractionStarter]: For program point L11(lines 11 14) no Hoare annotation was computed. [2018-07-21 22:27:51,702 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startErr0AssertViolationERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-07-21 22:27:51,702 INFO L421 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-07-21 22:27:51,702 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-07-21 22:27:51,708 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,709 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,709 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,709 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,710 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,711 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,711 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,711 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,711 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,711 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,712 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,712 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,712 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,712 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,712 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,713 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,713 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,713 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,720 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,720 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,721 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,721 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,721 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,721 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,722 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,722 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,722 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,722 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,723 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,723 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,723 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,723 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,723 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,724 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,724 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,724 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:27:51 BoogieIcfgContainer [2018-07-21 22:27:51,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 22:27:51,728 INFO L168 Benchmark]: Toolchain (without parser) took 61017.82 ms. Allocated memory was 309.9 MB in the beginning and 487.6 MB in the end (delta: 177.7 MB). Free memory was 256.8 MB in the beginning and 356.8 MB in the end (delta: -100.1 MB). Peak memory consumption was 77.7 MB. Max. memory is 5.3 GB. [2018-07-21 22:27:51,729 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 22:27:51,729 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.18 ms. Allocated memory is still 309.9 MB. Free memory was 255.8 MB in the beginning and 246.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 5.3 GB. [2018-07-21 22:27:51,730 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.57 ms. Allocated memory is still 309.9 MB. Free memory was 246.8 MB in the beginning and 245.8 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. [2018-07-21 22:27:51,731 INFO L168 Benchmark]: Boogie Preprocessor took 27.38 ms. Allocated memory is still 309.9 MB. Free memory was 245.8 MB in the beginning and 244.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-07-21 22:27:51,731 INFO L168 Benchmark]: RCFGBuilder took 388.89 ms. Allocated memory was 309.9 MB in the beginning and 472.9 MB in the end (delta: 163.1 MB). Free memory was 244.8 MB in the beginning and 444.5 MB in the end (delta: -199.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 5.3 GB. [2018-07-21 22:27:51,732 INFO L168 Benchmark]: TraceAbstraction took 60276.37 ms. Allocated memory was 472.9 MB in the beginning and 487.6 MB in the end (delta: 14.7 MB). Free memory was 443.2 MB in the beginning and 356.8 MB in the end (delta: 86.4 MB). Peak memory consumption was 101.1 MB. Max. memory is 5.3 GB. [2018-07-21 22:27:51,736 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 279.18 ms. Allocated memory is still 309.9 MB. Free memory was 255.8 MB in the beginning and 246.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 35.57 ms. Allocated memory is still 309.9 MB. Free memory was 246.8 MB in the beginning and 245.8 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. * Boogie Preprocessor took 27.38 ms. Allocated memory is still 309.9 MB. Free memory was 245.8 MB in the beginning and 244.8 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 388.89 ms. Allocated memory was 309.9 MB in the beginning and 472.9 MB in the end (delta: 163.1 MB). Free memory was 244.8 MB in the beginning and 444.5 MB in the end (delta: -199.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 60276.37 ms. Allocated memory was 472.9 MB in the beginning and 487.6 MB in the end (delta: 14.7 MB). Free memory was 443.2 MB in the beginning and 356.8 MB in the end (delta: 86.4 MB). Peak memory consumption was 101.1 MB. Max. memory is 5.3 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 [2018-07-21 22:27:51,745 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,745 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,745 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,745 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,745 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,746 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,746 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,746 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,746 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,746 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,746 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,747 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,747 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,747 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,747 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,747 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,747 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,748 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,749 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,749 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,749 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,749 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,749 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,750 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,750 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,750 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,750 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,750 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,750 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,751 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,751 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,751 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,751 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,751 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,751 WARN L343 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-07-21 22:27:51,752 WARN L343 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, 60.2s OverallTime, 9 OverallIterations, 8 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 90 SDtfs, 1 SDslu, 331 SDs, 0 SdLazy, 287 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 102 SyntacticMatches, 8 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 57.9s 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, 0.3s SatisfiabilityAnalysisTime, 58.3s 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! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/underapprox_true-unreach-call1_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_22-27-51-758.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/underapprox_true-unreach-call1_true-termination.i_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_22-27-51-758.csv Received shutdown request...