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_array_compound_exp_cong.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalCake.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 17:01:48,527 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 17:01:48,529 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 17:01:48,541 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 17:01:48,542 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 17:01:48,543 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 17:01:48,545 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 17:01:48,548 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 17:01:48,551 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 17:01:48,554 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 17:01:48,555 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 17:01:48,555 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 17:01:48,558 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 17:01:48,559 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 17:01:48,561 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 17:01:48,563 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 17:01:48,564 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 17:01:48,566 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 17:01:48,573 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 17:01:48,575 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 17:01:48,576 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 17:01:48,577 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 17:01:48,579 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-12-03 17:01:48,587 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_exp_cong.epf [2018-12-03 17:01:48,602 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 17:01:48,603 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 17:01:48,603 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 17:01:48,604 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 17:01:48,604 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 17:01:48,604 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 17:01:48,604 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 17:01:48,604 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 17:01:48,605 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 17:01:48,605 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 17:01:48,605 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 17:01:48,605 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 17:01:48,605 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 17:01:48,606 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 17:01:48,606 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 17:01:48,606 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 17:01:48,607 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 17:01:48,607 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 17:01:48,607 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 17:01:48,607 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 17:01:48,607 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 17:01:48,608 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 17:01:48,608 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 17:01:48,608 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 17:01:48,608 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 17:01:48,608 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 17:01:48,609 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 17:01:48,609 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 17:01:48,609 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 17:01:48,609 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 17:01:48,609 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 17:01:48,610 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 17:01:48,610 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 17:01:48,610 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 17:01:48,610 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 17:01:48,610 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 17:01:48,611 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 17:01:48,611 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 17:01:48,611 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 17:01:48,611 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 17:01:48,611 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 17:01:48,641 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 17:01:48,658 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 17:01:48,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 17:01:48,664 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 17:01:48,665 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 17:01:48,665 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalCake.bpl [2018-12-03 17:01:48,666 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/GeometricalCake.bpl' [2018-12-03 17:01:48,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 17:01:48,705 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 17:01:48,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 17:01:48,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 17:01:48,706 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 17:01:48,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:01:48" (1/1) ... [2018-12-03 17:01:48,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:01:48" (1/1) ... [2018-12-03 17:01:48,742 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-03 17:01:48,743 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-03 17:01:48,743 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-03 17:01:48,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 17:01:48,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 17:01:48,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 17:01:48,748 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 17:01:48,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:01:48" (1/1) ... [2018-12-03 17:01:48,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:01:48" (1/1) ... [2018-12-03 17:01:48,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:01:48" (1/1) ... [2018-12-03 17:01:48,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:01:48" (1/1) ... [2018-12-03 17:01:48,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:01:48" (1/1) ... [2018-12-03 17:01:48,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:01:48" (1/1) ... [2018-12-03 17:01:48,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:01:48" (1/1) ... [2018-12-03 17:01:48,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 17:01:48,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 17:01:48,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 17:01:48,777 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 17:01:48,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:01:48" (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 [2018-12-03 17:01:48,850 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-12-03 17:01:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 17:01:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 17:01:49,051 INFO L272 CfgBuilder]: Using library mode [2018-12-03 17:01:49,051 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 17:01:49,052 INFO L202 PluginConnector]: Adding new model GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:01:49 BoogieIcfgContainer [2018-12-03 17:01:49,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 17:01:49,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 17:01:49,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 17:01:49,056 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 17:01:49,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:01:48" (1/2) ... [2018-12-03 17:01:49,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2a508d and model type GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:01:49, skipping insertion in model container [2018-12-03 17:01:49,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GeometricalCake.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:01:49" (2/2) ... [2018-12-03 17:01:49,059 INFO L112 eAbstractionObserver]: Analyzing ICFG GeometricalCake.bpl [2018-12-03 17:01:49,071 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 17:01:49,080 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 17:01:49,098 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 17:01:49,133 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 17:01:49,133 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 17:01:49,133 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 17:01:49,134 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 17:01:49,134 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 17:01:49,134 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 17:01:49,134 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 17:01:49,134 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 17:01:49,151 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-12-03 17:01:49,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-03 17:01:49,158 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 17:01:49,159 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2018-12-03 17:01:49,161 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 17:01:49,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:01:49,167 INFO L82 PathProgramCache]: Analyzing trace with hash 967, now seen corresponding path program 1 times [2018-12-03 17:01:49,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 17:01:49,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:01:49,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:01:49,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:01:49,215 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 17:01:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:01:49,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 17:01:49,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 17:01:49,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-03 17:01:49,295 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 17:01:49,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 17:01:49,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 17:01:49,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 17:01:49,316 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-12-03 17:01:49,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 17:01:49,375 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-12-03 17:01:49,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 17:01:49,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-12-03 17:01:49,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 17:01:49,391 INFO L225 Difference]: With dead ends: 9 [2018-12-03 17:01:49,391 INFO L226 Difference]: Without dead ends: 4 [2018-12-03 17:01:49,396 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 [2018-12-03 17:01:49,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2018-12-03 17:01:49,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2018-12-03 17:01:49,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-03 17:01:49,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2018-12-03 17:01:49,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 4 transitions. Word has length 2 [2018-12-03 17:01:49,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 17:01:49,431 INFO L480 AbstractCegarLoop]: Abstraction has 4 states and 4 transitions. [2018-12-03 17:01:49,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 17:01:49,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2018-12-03 17:01:49,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-03 17:01:49,432 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 17:01:49,432 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-03 17:01:49,432 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 17:01:49,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:01:49,432 INFO L82 PathProgramCache]: Analyzing trace with hash 29921, now seen corresponding path program 1 times [2018-12-03 17:01:49,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 17:01:49,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:01:49,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:01:49,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:01:49,434 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 17:01:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:01:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 17:01:49,582 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 17:01:49,582 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 17:01:49,587 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2018-12-03 17:01:49,589 INFO L205 CegarAbsIntRunner]: [0], [4], [6] [2018-12-03 17:01:49,660 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-03 17:01:49,661 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 17:01:49,736 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.NumberFormatException: For input string: "1/2" at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) 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.lang.NumberFormatException: For input string: "1/2" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:580) at java.math.BigInteger.(BigInteger.java:470) at java.math.BigInteger.(BigInteger.java:606) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueStatementProcessor.lambda$0(ExplicitValueStatementProcessor.java:60) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.EvaluatorFactory.createSingletonValueExpressionEvaluator(EvaluatorFactory.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.visit(NonrelationalStatementProcessor.java:476) at de.uni_freiburg.informatik.ultimate.boogie.BoogieVisitor.processExpression(BoogieVisitor.java:377) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processExpression(NonrelationalStatementProcessor.java:221) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleSingleAssignment(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssignment(NonrelationalStatementProcessor.java:294) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:191) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:176) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:145) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:373) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:364) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:127) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainToolkit.handleStatementBySubdomain(ArrayDomainToolkit.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainStatementProcessor.processSingleAssignment(ArrayDomainStatementProcessor.java:136) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainStatementProcessor.processAssignment(ArrayDomainStatementProcessor.java:76) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainStatementProcessor.process(ArrayDomainStatementProcessor.java:43) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainPostOperator.handleInternalTransition(ArrayDomainPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainPostOperator.apply(ArrayDomainPostOperator.java:70) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainPostOperator.apply(ArrayDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-12-03 17:01:49,748 INFO L168 Benchmark]: Toolchain (without parser) took 1043.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-12-03 17:01:49,752 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 17:01:49,752 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 17:01:49,753 INFO L168 Benchmark]: Boogie Preprocessor took 28.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 17:01:49,755 INFO L168 Benchmark]: RCFGBuilder took 275.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 17:01:49,756 INFO L168 Benchmark]: TraceAbstraction took 694.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 17:01:49,764 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 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 275.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 694.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.NumberFormatException: For input string: "1/2" de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.NumberFormatException: For input string: "1/2": de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...