java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_oct.epf -i ../../../trunk/examples/programs/heapseparator/speedup-poc-dd-9-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-1ae3202 [2019-03-04 16:40:17,052 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-03-04 16:40:17,054 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-03-04 16:40:17,072 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-03-04 16:40:17,129 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_oct.epf [2019-03-04 16:40:17,149 INFO L110 SettingsManager]: Loading preferences was successful [2019-03-04 16:40:17,149 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-03-04 16:40:17,150 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-03-04 16:40:17,150 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-03-04 16:40:17,153 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-03-04 16:40:17,153 INFO L133 SettingsManager]: * User list type=DISABLED [2019-03-04 16:40:17,154 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-03-04 16:40:17,154 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-03-04 16:40:17,154 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-03-04 16:40:17,154 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-03-04 16:40:17,154 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2019-03-04 16:40:17,155 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-03-04 16:40:17,155 INFO L133 SettingsManager]: * Interval Domain=false [2019-03-04 16:40:17,156 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-03-04 16:40:17,156 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-03-04 16:40:17,157 INFO L133 SettingsManager]: * Use SBE=true [2019-03-04 16:40:17,157 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-03-04 16:40:17,157 INFO L133 SettingsManager]: * sizeof long=4 [2019-03-04 16:40:17,157 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-03-04 16:40:17,158 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-03-04 16:40:17,158 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-03-04 16:40:17,158 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-03-04 16:40:17,158 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-03-04 16:40:17,158 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-03-04 16:40:17,159 INFO L133 SettingsManager]: * sizeof long double=12 [2019-03-04 16:40:17,160 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-03-04 16:40:17,160 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-03-04 16:40:17,161 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-03-04 16:40:17,161 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-03-04 16:40:17,161 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-03-04 16:40:17,161 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-03-04 16:40:17,161 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-03-04 16:40:17,162 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-03-04 16:40:17,162 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-03-04 16:40:17,163 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-03-04 16:40:17,163 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-03-04 16:40:17,163 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-03-04 16:40:17,163 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-03-04 16:40:17,163 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-03-04 16:40:17,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-03-04 16:40:17,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-03-04 16:40:17,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-03-04 16:40:17,233 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-03-04 16:40:17,234 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-03-04 16:40:17,234 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-9-limited.bpl [2019-03-04 16:40:17,235 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-9-limited.bpl' [2019-03-04 16:40:17,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-03-04 16:40:17,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-03-04 16:40:17,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-03-04 16:40:17,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-03-04 16:40:17,295 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-03-04 16:40:17,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:40:17" (1/1) ... [2019-03-04 16:40:17,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:40:17" (1/1) ... [2019-03-04 16:40:17,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-03-04 16:40:17,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-03-04 16:40:17,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-03-04 16:40:17,356 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-03-04 16:40:17,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:40:17" (1/1) ... [2019-03-04 16:40:17,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:40:17" (1/1) ... [2019-03-04 16:40:17,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:40:17" (1/1) ... [2019-03-04 16:40:17,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:40:17" (1/1) ... [2019-03-04 16:40:17,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:40:17" (1/1) ... [2019-03-04 16:40:17,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:40:17" (1/1) ... [2019-03-04 16:40:17,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:40:17" (1/1) ... [2019-03-04 16:40:17,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-03-04 16:40:17,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-03-04 16:40:17,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-03-04 16:40:17,399 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-03-04 16:40:17,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:40:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-03-04 16:40:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-03-04 16:40:17,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-03-04 16:40:17,916 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-03-04 16:40:17,916 INFO L286 CfgBuilder]: Removed 21 assue(true) statements. [2019-03-04 16:40:17,918 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:40:17 BoogieIcfgContainer [2019-03-04 16:40:17,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-03-04 16:40:17,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-03-04 16:40:17,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-03-04 16:40:17,922 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-03-04 16:40:17,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:40:17" (1/2) ... [2019-03-04 16:40:17,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ad0a79 and model type speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 04:40:17, skipping insertion in model container [2019-03-04 16:40:17,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-9-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:40:17" (2/2) ... [2019-03-04 16:40:17,926 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-9-limited.bpl [2019-03-04 16:40:17,935 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-03-04 16:40:17,943 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2019-03-04 16:40:17,959 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-03-04 16:40:17,990 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-03-04 16:40:17,991 INFO L383 AbstractCegarLoop]: Hoare is true [2019-03-04 16:40:17,991 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-03-04 16:40:17,991 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-03-04 16:40:17,991 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-03-04 16:40:17,991 INFO L387 AbstractCegarLoop]: Difference is false [2019-03-04 16:40:17,992 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-03-04 16:40:17,992 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-03-04 16:40:18,007 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-03-04 16:40:18,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-03-04 16:40:18,013 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:40:18,014 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-03-04 16:40:18,017 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:40:18,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:40:18,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2019-03-04 16:40:18,025 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-03-04 16:40:18,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:40:18,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:40:18,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:40:18,082 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-03-04 16:40:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:40:18,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:40:18,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-03-04 16:40:18,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-03-04 16:40:18,242 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-03-04 16:40:18,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-03-04 16:40:18,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-03-04 16:40:18,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-03-04 16:40:18,261 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2019-03-04 16:40:18,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:40:18,566 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions. [2019-03-04 16:40:18,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-03-04 16:40:18,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-03-04 16:40:18,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:40:18,596 INFO L225 Difference]: With dead ends: 41 [2019-03-04 16:40:18,596 INFO L226 Difference]: Without dead ends: 36 [2019-03-04 16:40:18,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-03-04 16:40:18,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-03-04 16:40:18,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 20. [2019-03-04 16:40:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-03-04 16:40:18,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 37 transitions. [2019-03-04 16:40:18,653 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 37 transitions. Word has length 2 [2019-03-04 16:40:18,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:40:18,656 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 37 transitions. [2019-03-04 16:40:18,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-03-04 16:40:18,656 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 37 transitions. [2019-03-04 16:40:18,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:40:18,657 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:40:18,657 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:40:18,658 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:40:18,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:40:18,658 INFO L82 PathProgramCache]: Analyzing trace with hash 30388, now seen corresponding path program 1 times [2019-03-04 16:40:18,659 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-03-04 16:40:18,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:40:18,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:40:18,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:40:18,660 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-03-04 16:40:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:40:18,966 WARN L181 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 13 [2019-03-04 16:40:19,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:40:19,042 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:40:19,042 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-03-04 16:40:19,043 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2019-03-04 16:40:19,045 INFO L207 CegarAbsIntRunner]: [0], [18], [39] [2019-03-04 16:40:19,098 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2019-03-04 16:40:19,098 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2019-03-04 16:40:19,168 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-03-04 16:40:19,169 INFO L272 AbstractInterpreter]: Visited 3 different actions 3 times. Never merged. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-03-04 16:40:19,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:40:19,175 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-03-04 16:40:19,175 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:40:19,175 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:40:19,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:40:19,192 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-03-04 16:40:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:40:19,210 WARN L254 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 21 conjunts are in the unsatisfiable core [2019-03-04 16:40:19,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:40:19,367 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2019-03-04 16:40:19,402 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,404 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2019-03-04 16:40:19,441 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,450 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,452 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,454 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2019-03-04 16:40:19,477 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,503 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,518 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,521 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,523 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,527 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,529 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2019-03-04 16:40:19,576 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,578 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,583 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,585 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,587 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,589 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,591 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,594 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,596 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,598 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,601 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 41 [2019-03-04 16:40:19,622 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,623 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,629 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,630 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,631 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,632 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,634 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,639 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,642 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,646 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,648 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,652 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,653 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,655 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,658 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,661 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2019-03-04 16:40:19,696 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,722 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,740 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,741 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,743 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,745 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,747 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,749 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,752 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,753 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,757 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,759 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,760 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,761 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,763 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,765 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,767 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,770 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,771 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,773 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,775 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,780 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2019-03-04 16:40:19,841 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,865 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,879 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,881 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,890 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,894 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,896 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,897 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,898 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,900 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,903 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,905 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,908 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,909 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,910 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,912 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,914 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,916 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,918 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,920 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,922 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,924 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,927 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,929 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,931 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,934 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,958 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,960 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:19,960 INFO L301 Elim1Store]: Index analysis took 143 ms [2019-03-04 16:40:19,962 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2019-03-04 16:40:20,024 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,026 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,027 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,028 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,032 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,034 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,037 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,039 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,042 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,044 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,046 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,048 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,050 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,052 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,054 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,056 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,058 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,060 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,062 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,082 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,103 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,129 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,161 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,163 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,164 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,166 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,167 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,169 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,171 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,173 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,176 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,178 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,180 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,182 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,185 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,187 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,188 INFO L301 Elim1Store]: Index analysis took 184 ms [2019-03-04 16:40:20,191 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2019-03-04 16:40:20,192 INFO L309 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-03-04 16:40:20,234 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:20,351 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:20,591 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:20,627 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:20,670 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:20,765 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:20,794 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:20,824 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:20,962 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,963 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,964 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,966 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,968 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,975 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,976 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,977 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,978 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,985 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:20,999 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,000 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,001 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,002 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,003 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,004 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,036 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,038 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,039 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,039 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,041 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,042 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,044 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,053 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,054 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,055 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,057 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,058 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,060 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,061 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,063 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,067 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,068 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,071 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2019-03-04 16:40:21,072 INFO L309 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2019-03-04 16:40:21,080 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:21,082 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:21,083 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:21,085 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:21,094 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:40:21,152 INFO L309 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2019-03-04 16:40:21,152 INFO L209 ElimStorePlain]: Needed 16 recursive calls to eliminate 9 variables, input treesize:149, output treesize:70 [2019-03-04 16:40:21,239 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,241 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,243 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,245 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,253 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,254 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,255 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,266 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,267 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,268 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,269 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,270 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,271 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,272 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,274 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,275 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,276 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,278 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,279 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,281 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,282 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,301 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,302 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,303 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,304 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,308 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,313 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,314 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,314 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,316 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,317 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,319 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,320 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,321 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,323 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,324 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:40:21,327 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 51 [2019-03-04 16:40:21,328 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:40:21,449 INFO L309 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, End of recursive call: 8 dim-0 vars, and 1 xjuncts. [2019-03-04 16:40:21,449 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:80, output treesize:72 [2019-03-04 16:40:24,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:40:24,352 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-03-04 16:40:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:40:24,389 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-03-04 16:40:24,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2019-03-04 16:40:24,389 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-03-04 16:40:24,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:40:24,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:40:24,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=31, Unknown=1, NotChecked=0, Total=56 [2019-03-04 16:40:24,390 INFO L87 Difference]: Start difference. First operand 20 states and 37 transitions. Second operand 6 states. [2019-03-04 16:40:47,167 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-03-04 16:40:47,169 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:652) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:256) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:715) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:628) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2019-03-04 16:40:47,173 INFO L168 Benchmark]: Toolchain (without parser) took 29879.97 ms. Allocated memory was 136.3 MB in the beginning and 272.1 MB in the end (delta: 135.8 MB). Free memory was 103.6 MB in the beginning and 219.9 MB in the end (delta: -116.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2019-03-04 16:40:47,175 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory is still 105.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-03-04 16:40:47,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.22 ms. Allocated memory is still 136.3 MB. Free memory was 103.6 MB in the beginning and 101.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-03-04 16:40:47,176 INFO L168 Benchmark]: Boogie Preprocessor took 42.82 ms. Allocated memory is still 136.3 MB. Free memory was 101.3 MB in the beginning and 100.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-03-04 16:40:47,178 INFO L168 Benchmark]: RCFGBuilder took 519.50 ms. Allocated memory is still 136.3 MB. Free memory was 99.8 MB in the beginning and 86.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-03-04 16:40:47,179 INFO L168 Benchmark]: TraceAbstraction took 29253.08 ms. Allocated memory was 136.3 MB in the beginning and 272.1 MB in the end (delta: 135.8 MB). Free memory was 85.8 MB in the beginning and 219.9 MB in the end (delta: -134.1 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-03-04 16:40:47,187 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 136.3 MB. Free memory is still 105.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.22 ms. Allocated memory is still 136.3 MB. Free memory was 103.6 MB in the beginning and 101.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.82 ms. Allocated memory is still 136.3 MB. Free memory was 101.3 MB in the beginning and 100.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 519.50 ms. Allocated memory is still 136.3 MB. Free memory was 99.8 MB in the beginning and 86.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29253.08 ms. Allocated memory was 136.3 MB in the beginning and 272.1 MB in the end (delta: 135.8 MB). Free memory was 85.8 MB in the beginning and 219.9 MB in the end (delta: -134.1 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...