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_compound_exp_cong.epf -i ../../../trunk/examples/programs/heapseparator/speedup-poc-dd-8-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0302a3f [2019-02-25 15:23:12,836 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-02-25 15:23:12,837 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-02-25 15:23:12,849 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-02-25 15:23:12,849 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-02-25 15:23:12,850 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-02-25 15:23:12,851 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-02-25 15:23:12,853 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-02-25 15:23:12,855 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-02-25 15:23:12,855 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-02-25 15:23:12,856 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-02-25 15:23:12,880 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2019-02-25 15:23:12,892 INFO L110 SettingsManager]: Loading preferences was successful [2019-02-25 15:23:12,893 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-02-25 15:23:12,894 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-02-25 15:23:12,894 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-02-25 15:23:12,894 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-02-25 15:23:12,894 INFO L133 SettingsManager]: * User list type=DISABLED [2019-02-25 15:23:12,895 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-02-25 15:23:12,895 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-02-25 15:23:12,895 INFO L133 SettingsManager]: * Explicit value domain=true [2019-02-25 15:23:12,895 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-02-25 15:23:12,895 INFO L133 SettingsManager]: * Octagon Domain=false [2019-02-25 15:23:12,896 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-02-25 15:23:12,896 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-02-25 15:23:12,896 INFO L133 SettingsManager]: * Interval Domain=false [2019-02-25 15:23:12,897 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-02-25 15:23:12,897 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-02-25 15:23:12,897 INFO L133 SettingsManager]: * Use SBE=true [2019-02-25 15:23:12,897 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-02-25 15:23:12,898 INFO L133 SettingsManager]: * sizeof long=4 [2019-02-25 15:23:12,898 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-02-25 15:23:12,898 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-02-25 15:23:12,898 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-02-25 15:23:12,898 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-02-25 15:23:12,899 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-02-25 15:23:12,899 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-02-25 15:23:12,899 INFO L133 SettingsManager]: * sizeof long double=12 [2019-02-25 15:23:12,899 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-02-25 15:23:12,899 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-02-25 15:23:12,900 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-02-25 15:23:12,900 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-02-25 15:23:12,900 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-02-25 15:23:12,900 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-02-25 15:23:12,901 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-02-25 15:23:12,901 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-02-25 15:23:12,901 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-02-25 15:23:12,901 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-02-25 15:23:12,901 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-02-25 15:23:12,902 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-02-25 15:23:12,902 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-02-25 15:23:12,902 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-02-25 15:23:12,938 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-02-25 15:23:12,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-02-25 15:23:12,961 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-02-25 15:23:12,962 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-02-25 15:23:12,963 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-02-25 15:23:12,965 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-8-limited.bpl [2019-02-25 15:23:12,965 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-8-limited.bpl' [2019-02-25 15:23:13,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-02-25 15:23:13,017 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-02-25 15:23:13,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-02-25 15:23:13,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-02-25 15:23:13,018 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-02-25 15:23:13,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.02 03:23:13" (1/1) ... [2019-02-25 15:23:13,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.02 03:23:13" (1/1) ... [2019-02-25 15:23:13,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-02-25 15:23:13,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-02-25 15:23:13,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-02-25 15:23:13,091 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-02-25 15:23:13,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.02 03:23:13" (1/1) ... [2019-02-25 15:23:13,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.02 03:23:13" (1/1) ... [2019-02-25 15:23:13,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.02 03:23:13" (1/1) ... [2019-02-25 15:23:13,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.02 03:23:13" (1/1) ... [2019-02-25 15:23:13,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.02 03:23:13" (1/1) ... [2019-02-25 15:23:13,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.02 03:23:13" (1/1) ... [2019-02-25 15:23:13,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.02 03:23:13" (1/1) ... [2019-02-25 15:23:13,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-02-25 15:23:13,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-02-25 15:23:13,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-02-25 15:23:13,139 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-02-25 15:23:13,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.02 03:23:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-02-25 15:23:13,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-02-25 15:23:13,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-02-25 15:23:13,594 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-02-25 15:23:13,594 INFO L286 CfgBuilder]: Removed 19 assue(true) statements. [2019-02-25 15:23:13,596 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.02 03:23:13 BoogieIcfgContainer [2019-02-25 15:23:13,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-02-25 15:23:13,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-02-25 15:23:13,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-02-25 15:23:13,601 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-02-25 15:23:13,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.02 03:23:13" (1/2) ... [2019-02-25 15:23:13,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3265bd92 and model type speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.02 03:23:13, skipping insertion in model container [2019-02-25 15:23:13,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-8-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.02 03:23:13" (2/2) ... [2019-02-25 15:23:13,605 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-8-limited.bpl [2019-02-25 15:23:13,616 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-02-25 15:23:13,636 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-02-25 15:23:13,678 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-02-25 15:23:13,725 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-02-25 15:23:13,726 INFO L383 AbstractCegarLoop]: Hoare is true [2019-02-25 15:23:13,726 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-02-25 15:23:13,726 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-02-25 15:23:13,726 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-02-25 15:23:13,726 INFO L387 AbstractCegarLoop]: Difference is false [2019-02-25 15:23:13,727 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-02-25 15:23:13,727 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-02-25 15:23:13,743 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-02-25 15:23:13,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-02-25 15:23:13,750 INFO L394 BasicCegarLoop]: Found error trace [2019-02-25 15:23:13,751 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-02-25 15:23:13,754 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT]=== [2019-02-25 15:23:13,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-25 15:23:13,760 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-02-25 15:23:13,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-25 15:23:13,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-25 15:23:13,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-25 15:23:13,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-25 15:23:13,818 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-25 15:23:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-25 15:23:14,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-25 15:23:14,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-02-25 15:23:14,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-02-25 15:23:14,020 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-02-25 15:23:14,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-02-25 15:23:14,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-02-25 15:23:14,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-02-25 15:23:14,039 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-02-25 15:23:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-25 15:23:14,258 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2019-02-25 15:23:14,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-02-25 15:23:14,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-02-25 15:23:14,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-25 15:23:14,274 INFO L225 Difference]: With dead ends: 37 [2019-02-25 15:23:14,275 INFO L226 Difference]: Without dead ends: 32 [2019-02-25 15:23:14,277 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 [2019-02-25 15:23:14,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-02-25 15:23:14,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 18. [2019-02-25 15:23:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-02-25 15:23:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 33 transitions. [2019-02-25 15:23:14,311 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 33 transitions. Word has length 2 [2019-02-25 15:23:14,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-25 15:23:14,313 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 33 transitions. [2019-02-25 15:23:14,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-02-25 15:23:14,313 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 33 transitions. [2019-02-25 15:23:14,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-02-25 15:23:14,314 INFO L394 BasicCegarLoop]: Found error trace [2019-02-25 15:23:14,314 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-02-25 15:23:14,314 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT]=== [2019-02-25 15:23:14,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-25 15:23:14,315 INFO L82 PathProgramCache]: Analyzing trace with hash 30818, now seen corresponding path program 1 times [2019-02-25 15:23:14,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-25 15:23:14,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-25 15:23:14,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-25 15:23:14,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-25 15:23:14,317 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-25 15:23:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-25 15:23:14,581 WARN L181 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 13 [2019-02-25 15:23:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-25 15:23:14,657 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-25 15:23:14,657 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-25 15:23:14,658 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2019-02-25 15:23:14,660 INFO L207 CegarAbsIntRunner]: [0], [32], [35] [2019-02-25 15:23:14,699 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-02-25 15:23:14,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-02-25 15:23:14,787 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-02-25 15:23:14,788 INFO L272 AbstractInterpreter]: Visited 3 different actions 3 times. Never merged. Never widened. Performed 98 root evaluator evaluations with a maximum evaluation depth of 3. Performed 98 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-02-25 15:23:14,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-25 15:23:14,795 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-02-25 15:23:14,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-25 15:23:14,796 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 [2019-02-25 15:23:14,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-25 15:23:14,808 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-25 15:23:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-25 15:23:14,834 WARN L254 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 16 conjunts are in the unsatisfiable core [2019-02-25 15:23:14,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-25 15:23:14,896 INFO L467 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 27 treesize of output 30 [2019-02-25 15:23:14,938 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:14,941 INFO L467 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 30 treesize of output 36 [2019-02-25 15:23:15,018 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,020 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,023 INFO L467 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 32 treesize of output 46 [2019-02-25 15:23:15,067 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,071 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,073 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,075 INFO L467 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 34 treesize of output 60 [2019-02-25 15:23:15,120 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,122 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,125 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,127 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,130 INFO L467 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 36 treesize of output 78 [2019-02-25 15:23:15,171 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,172 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,174 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,175 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,176 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,180 INFO L467 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 38 treesize of output 100 [2019-02-25 15:23:15,207 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,211 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,213 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,215 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,217 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,226 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,228 INFO L467 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 40 treesize of output 126 [2019-02-25 15:23:15,264 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,266 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,267 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,269 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,271 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,275 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,277 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:15,281 INFO L467 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 153 [2019-02-25 15:23:15,284 INFO L301 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-02-25 15:23:15,567 INFO L301 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-25 15:23:15,866 INFO L301 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-25 15:23:16,028 INFO L301 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-25 15:23:16,087 INFO L301 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-25 15:23:16,132 INFO L301 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-25 15:23:16,158 INFO L301 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-25 15:23:16,186 INFO L301 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-25 15:23:16,264 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,265 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,266 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,272 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,275 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,276 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,281 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,282 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,283 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,284 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,302 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,303 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,305 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,308 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2019-02-25 15:23:16,309 INFO L301 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-02-25 15:23:16,320 INFO L301 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-25 15:23:16,322 INFO L301 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-25 15:23:16,326 INFO L301 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-25 15:23:16,376 INFO L301 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-02-25 15:23:16,376 INFO L208 ElimStorePlain]: Needed 13 recursive calls to eliminate 8 variables, input treesize:94, output treesize:62 [2019-02-25 15:23:16,429 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,431 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,433 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,437 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,440 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,442 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,450 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,452 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,455 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,456 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,457 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,459 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,461 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,463 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,464 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,466 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,467 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,470 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,485 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,499 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,501 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,503 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,505 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,506 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,507 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,512 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,513 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,514 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,515 INFO L176 IndexEqualityManager]: detected not equals via solver [2019-02-25 15:23:16,518 INFO L467 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 153 [2019-02-25 15:23:16,523 INFO L301 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-02-25 15:23:16,830 INFO L301 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2019-02-25 15:23:16,831 INFO L208 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:72, output treesize:62 [2019-02-25 15:23:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-25 15:23:19,308 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-25 15:23:19,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-25 15:23:19,353 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-25 15:23:19,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2019-02-25 15:23:19,354 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-25 15:23:19,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-02-25 15:23:19,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-02-25 15:23:19,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=31, Unknown=1, NotChecked=0, Total=56 [2019-02-25 15:23:19,355 INFO L87 Difference]: Start difference. First operand 18 states and 33 transitions. Second operand 6 states. [2019-02-25 15:23:42,487 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-02-25 15:23:42,489 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 [2019-02-25 15:23:42,493 INFO L168 Benchmark]: Toolchain (without parser) took 29476.96 ms. Allocated memory was 132.6 MB in the beginning and 260.0 MB in the end (delta: 127.4 MB). Free memory was 106.4 MB in the beginning and 213.0 MB in the end (delta: -106.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-02-25 15:23:42,494 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.28 ms. Allocated memory is still 132.6 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-02-25 15:23:42,495 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.91 ms. Allocated memory is still 132.6 MB. Free memory was 106.4 MB in the beginning and 104.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-02-25 15:23:42,496 INFO L168 Benchmark]: Boogie Preprocessor took 43.86 ms. Allocated memory is still 132.6 MB. Free memory was 104.3 MB in the beginning and 103.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-02-25 15:23:42,497 INFO L168 Benchmark]: RCFGBuilder took 461.02 ms. Allocated memory is still 132.6 MB. Free memory was 102.5 MB in the beginning and 89.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-02-25 15:23:42,498 INFO L168 Benchmark]: TraceAbstraction took 28894.31 ms. Allocated memory was 132.6 MB in the beginning and 260.0 MB in the end (delta: 127.4 MB). Free memory was 89.2 MB in the beginning and 213.0 MB in the end (delta: -123.8 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2019-02-25 15:23:42,503 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 0.28 ms. Allocated memory is still 132.6 MB. Free memory is still 107.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.91 ms. Allocated memory is still 132.6 MB. Free memory was 106.4 MB in the beginning and 104.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.86 ms. Allocated memory is still 132.6 MB. Free memory was 104.3 MB in the beginning and 103.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 461.02 ms. Allocated memory is still 132.6 MB. Free memory was 102.5 MB in the beginning and 89.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28894.31 ms. Allocated memory was 132.6 MB in the beginning and 260.0 MB in the end (delta: 127.4 MB). Free memory was 89.2 MB in the beginning and 213.0 MB in the end (delta: -123.8 MB). Peak memory consumption was 3.6 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...