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-10-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-1ae3202 [2019-03-04 16:38:30,055 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-03-04 16:38:30,057 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-03-04 16:38:30,077 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-03-04 16:38:30,115 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 16:38:30,135 INFO L110 SettingsManager]: Loading preferences was successful [2019-03-04 16:38:30,135 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-03-04 16:38:30,136 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-03-04 16:38:30,136 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-03-04 16:38:30,136 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-03-04 16:38:30,136 INFO L133 SettingsManager]: * User list type=DISABLED [2019-03-04 16:38:30,137 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-03-04 16:38:30,137 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-03-04 16:38:30,137 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-03-04 16:38:30,137 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-03-04 16:38:30,137 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2019-03-04 16:38:30,138 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-03-04 16:38:30,138 INFO L133 SettingsManager]: * Interval Domain=false [2019-03-04 16:38:30,139 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-03-04 16:38:30,139 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-03-04 16:38:30,139 INFO L133 SettingsManager]: * Use SBE=true [2019-03-04 16:38:30,139 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-03-04 16:38:30,139 INFO L133 SettingsManager]: * sizeof long=4 [2019-03-04 16:38:30,140 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-03-04 16:38:30,140 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-03-04 16:38:30,140 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-03-04 16:38:30,140 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-03-04 16:38:30,140 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-03-04 16:38:30,141 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-03-04 16:38:30,141 INFO L133 SettingsManager]: * sizeof long double=12 [2019-03-04 16:38:30,141 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-03-04 16:38:30,141 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-03-04 16:38:30,141 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-03-04 16:38:30,142 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-03-04 16:38:30,142 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-03-04 16:38:30,142 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-03-04 16:38:30,142 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-03-04 16:38:30,143 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-03-04 16:38:30,143 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-03-04 16:38:30,143 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-03-04 16:38:30,143 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-03-04 16:38:30,143 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-03-04 16:38:30,144 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-03-04 16:38:30,144 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-03-04 16:38:30,176 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-03-04 16:38:30,191 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-03-04 16:38:30,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-03-04 16:38:30,198 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-03-04 16:38:30,199 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-03-04 16:38:30,200 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-10-limited.bpl [2019-03-04 16:38:30,200 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-10-limited.bpl' [2019-03-04 16:38:30,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-03-04 16:38:30,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-03-04 16:38:30,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-03-04 16:38:30,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-03-04 16:38:30,267 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-03-04 16:38:30,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:38:30" (1/1) ... [2019-03-04 16:38:30,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:38:30" (1/1) ... [2019-03-04 16:38:30,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-03-04 16:38:30,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-03-04 16:38:30,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-03-04 16:38:30,339 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-03-04 16:38:30,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:38:30" (1/1) ... [2019-03-04 16:38:30,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:38:30" (1/1) ... [2019-03-04 16:38:30,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:38:30" (1/1) ... [2019-03-04 16:38:30,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:38:30" (1/1) ... [2019-03-04 16:38:30,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:38:30" (1/1) ... [2019-03-04 16:38:30,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:38:30" (1/1) ... [2019-03-04 16:38:30,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:38:30" (1/1) ... [2019-03-04 16:38:30,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-03-04 16:38:30,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-03-04 16:38:30,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-03-04 16:38:30,384 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-03-04 16:38:30,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:38:30" (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 16:38:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-03-04 16:38:30,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-03-04 16:38:30,901 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-03-04 16:38:30,902 INFO L286 CfgBuilder]: Removed 23 assue(true) statements. [2019-03-04 16:38:30,903 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:38:30 BoogieIcfgContainer [2019-03-04 16:38:30,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-03-04 16:38:30,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-03-04 16:38:30,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-03-04 16:38:30,908 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-03-04 16:38:30,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:38:30" (1/2) ... [2019-03-04 16:38:30,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a58c18 and model type speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 04:38:30, skipping insertion in model container [2019-03-04 16:38:30,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:38:30" (2/2) ... [2019-03-04 16:38:30,911 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-10-limited.bpl [2019-03-04 16:38:30,920 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-03-04 16:38:30,928 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-03-04 16:38:30,942 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-03-04 16:38:30,973 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-03-04 16:38:30,973 INFO L383 AbstractCegarLoop]: Hoare is true [2019-03-04 16:38:30,973 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-03-04 16:38:30,974 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-03-04 16:38:30,974 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-03-04 16:38:30,974 INFO L387 AbstractCegarLoop]: Difference is false [2019-03-04 16:38:30,974 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-03-04 16:38:30,974 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-03-04 16:38:30,988 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-03-04 16:38:30,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-03-04 16:38:30,994 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:38:30,995 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-03-04 16:38:30,998 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr9ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:38:31,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:38:31,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1004, now seen corresponding path program 1 times [2019-03-04 16:38:31,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-03-04 16:38:31,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:38:31,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:38:31,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:38:31,050 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-03-04 16:38:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:38:31,205 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 16:38:31,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-03-04 16:38:31,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-03-04 16:38:31,207 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-03-04 16:38:31,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-03-04 16:38:31,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-03-04 16:38:31,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-03-04 16:38:31,226 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2019-03-04 16:38:31,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:38:31,517 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2019-03-04 16:38:31,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-03-04 16:38:31,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-03-04 16:38:31,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:38:31,534 INFO L225 Difference]: With dead ends: 45 [2019-03-04 16:38:31,534 INFO L226 Difference]: Without dead ends: 40 [2019-03-04 16:38:31,537 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 16:38:31,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-03-04 16:38:31,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 22. [2019-03-04 16:38:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-03-04 16:38:31,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 41 transitions. [2019-03-04 16:38:31,597 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 41 transitions. Word has length 2 [2019-03-04 16:38:31,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:38:31,599 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 41 transitions. [2019-03-04 16:38:31,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-03-04 16:38:31,599 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 41 transitions. [2019-03-04 16:38:31,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:38:31,600 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:38:31,600 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:38:31,600 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr9ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:38:31,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:38:31,601 INFO L82 PathProgramCache]: Analyzing trace with hash 30392, now seen corresponding path program 1 times [2019-03-04 16:38:31,601 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-03-04 16:38:31,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:38:31,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:38:31,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:38:31,603 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-03-04 16:38:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:38:31,932 WARN L181 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 13 [2019-03-04 16:38:31,967 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 16:38:31,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:38:31,968 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-03-04 16:38:31,969 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2019-03-04 16:38:31,971 INFO L207 CegarAbsIntRunner]: [0], [18], [43] [2019-03-04 16:38:32,018 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2019-03-04 16:38:32,018 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2019-03-04 16:38:32,097 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-03-04 16:38:32,098 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 16:38:32,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:38:32,104 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-03-04 16:38:32,104 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:38:32,104 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 16:38:32,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:38:32,120 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-03-04 16:38:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:38:32,154 WARN L254 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 22 conjunts are in the unsatisfiable core [2019-03-04 16:38:32,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:38:32,333 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 33 treesize of output 36 [2019-03-04 16:38:32,370 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,372 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 36 treesize of output 38 [2019-03-04 16:38:32,425 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,450 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,476 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,478 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 38 treesize of output 40 [2019-03-04 16:38:32,535 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,561 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,583 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,605 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,607 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,610 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,613 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 40 treesize of output 42 [2019-03-04 16:38:32,643 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,645 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,647 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,649 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,651 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,656 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,658 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,661 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,664 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,666 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,671 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 42 treesize of output 44 [2019-03-04 16:38:32,691 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,693 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,695 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,697 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,700 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,702 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,704 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,709 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,711 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,714 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,721 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,742 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,768 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,795 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,815 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,816 INFO L301 Elim1Store]: Index analysis took 125 ms [2019-03-04 16:38:32,818 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 44 treesize of output 46 [2019-03-04 16:38:32,871 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,898 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,924 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,937 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,938 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,949 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,965 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,967 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,969 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,973 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,975 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,977 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,980 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,981 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,982 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,984 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,987 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,990 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,993 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,995 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,998 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:32,998 INFO L301 Elim1Store]: Index analysis took 151 ms [2019-03-04 16:38:33,004 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 46 treesize of output 48 [2019-03-04 16:38:33,047 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,051 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,053 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,055 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,059 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,061 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,063 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,065 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,067 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,068 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,070 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,074 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,077 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,080 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,086 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,088 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,090 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,109 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,127 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,129 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,131 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,133 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,135 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,137 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,139 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,141 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,143 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,145 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,146 INFO L301 Elim1Store]: Index analysis took 102 ms [2019-03-04 16:38:33,150 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 48 treesize of output 50 [2019-03-04 16:38:33,176 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,178 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,180 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,182 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,184 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,186 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,187 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,189 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,191 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,193 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,195 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,197 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,199 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,202 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,204 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,206 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,207 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,208 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,210 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,211 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,213 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,215 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,217 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,219 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,221 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,224 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,226 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,227 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,229 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,230 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,233 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,235 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,237 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,239 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,243 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,244 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,249 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 52 [2019-03-04 16:38:33,296 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,299 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,301 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,304 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,306 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,308 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,310 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,312 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,316 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,321 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,324 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,326 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,328 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,332 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,356 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,378 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,405 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,428 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,458 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,481 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,505 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,533 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,556 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,588 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,609 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,635 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,661 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,667 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,671 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,673 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,675 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,677 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,679 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,681 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,684 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,686 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,688 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,690 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,692 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,694 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,696 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,698 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,700 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,702 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,705 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:33,705 INFO L301 Elim1Store]: Index analysis took 422 ms [2019-03-04 16:38:33,708 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2019-03-04 16:38:33,709 INFO L309 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-03-04 16:38:33,777 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:33,819 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:33,895 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:33,978 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,014 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,054 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,096 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,134 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,174 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,311 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,312 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,314 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,315 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,317 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,318 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,335 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,336 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,337 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,338 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,339 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,348 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,350 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,351 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,353 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,354 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,372 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,373 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,378 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,383 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,390 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,391 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,392 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,402 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,406 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,409 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,410 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,415 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,418 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,419 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,420 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,420 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,421 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,426 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 16:38:34,427 INFO L309 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,431 INFO L309 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,433 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,435 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,440 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,442 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,537 INFO L309 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 2 dim-1 vars, End of recursive call: 8 dim-0 vars, and 1 xjuncts. [2019-03-04 16:38:34,538 INFO L209 ElimStorePlain]: Needed 17 recursive calls to eliminate 10 variables, input treesize:155, output treesize:78 [2019-03-04 16:38:34,644 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,645 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,647 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,648 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,649 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,650 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,652 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,653 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,654 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,655 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,657 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,658 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,662 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,665 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,667 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,687 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,688 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,689 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,689 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,690 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,691 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,692 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,694 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,695 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,696 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,697 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,699 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,700 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,701 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,702 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,704 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,705 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,706 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,707 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,709 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,710 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,711 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,712 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,714 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,715 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,716 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,717 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,718 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,720 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,721 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:38:34,724 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2019-03-04 16:38:34,726 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:38:34,854 INFO L309 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-1 vars, End of recursive call: 9 dim-0 vars, and 1 xjuncts. [2019-03-04 16:38:34,855 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 10 variables, input treesize:88, output treesize:80 [2019-03-04 16:38:37,755 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 16:38:37,755 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-03-04 16:38:37,788 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 16:38:37,809 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-03-04 16:38:37,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2019-03-04 16:38:37,810 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-03-04 16:38:37,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:38:37,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:38:37,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=31, Unknown=1, NotChecked=0, Total=56 [2019-03-04 16:38:37,811 INFO L87 Difference]: Start difference. First operand 22 states and 41 transitions. Second operand 6 states. [2019-03-04 16:38:59,063 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-03-04 16:38:59,064 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 16:38:59,068 INFO L168 Benchmark]: Toolchain (without parser) took 28803.92 ms. Allocated memory was 140.5 MB in the beginning and 257.9 MB in the end (delta: 117.4 MB). Free memory was 107.6 MB in the beginning and 182.6 MB in the end (delta: -75.1 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2019-03-04 16:38:59,070 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory is still 108.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-03-04 16:38:59,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.99 ms. Allocated memory is still 140.5 MB. Free memory was 107.6 MB in the beginning and 105.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-03-04 16:38:59,071 INFO L168 Benchmark]: Boogie Preprocessor took 44.04 ms. Allocated memory is still 140.5 MB. Free memory was 105.0 MB in the beginning and 103.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-03-04 16:38:59,072 INFO L168 Benchmark]: RCFGBuilder took 519.99 ms. Allocated memory is still 140.5 MB. Free memory was 103.8 MB in the beginning and 89.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-03-04 16:38:59,073 INFO L168 Benchmark]: TraceAbstraction took 28162.71 ms. Allocated memory was 140.5 MB in the beginning and 257.9 MB in the end (delta: 117.4 MB). Free memory was 89.0 MB in the beginning and 182.6 MB in the end (delta: -93.6 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-03-04 16:38:59,077 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 140.5 MB. Free memory is still 108.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.99 ms. Allocated memory is still 140.5 MB. Free memory was 107.6 MB in the beginning and 105.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.04 ms. Allocated memory is still 140.5 MB. Free memory was 105.0 MB in the beginning and 103.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 519.99 ms. Allocated memory is still 140.5 MB. Free memory was 103.8 MB in the beginning and 89.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28162.71 ms. Allocated memory was 140.5 MB in the beginning and 257.9 MB in the end (delta: 117.4 MB). Free memory was 89.0 MB in the beginning and 182.6 MB in the end (delta: -93.6 MB). Peak memory consumption was 23.8 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...