java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf -i ../../../trunk/examples/programs/toy/nonlinear/Power3-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 12:58:53,540 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 12:58:53,542 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 12:58:53,553 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 12:58:53,554 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 12:58:53,555 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 12:58:53,556 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 12:58:53,558 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 12:58:53,559 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 12:58:53,560 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 12:58:53,561 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 12:58:53,561 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 12:58:53,562 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 12:58:53,563 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 12:58:53,564 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 12:58:53,565 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 12:58:53,566 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 12:58:53,568 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 12:58:53,570 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 12:58:53,571 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 12:58:53,572 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 12:58:53,573 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 12:58:53,576 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 12:58:53,576 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 12:58:53,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 12:58:53,577 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 12:58:53,578 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 12:58:53,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 12:58:53,580 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 12:58:53,581 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 12:58:53,582 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 12:58:53,582 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-04 12:58:53,585 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf [2018-10-04 12:58:53,611 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 12:58:53,611 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 12:58:53,614 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 12:58:53,614 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 12:58:53,614 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 12:58:53,615 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 12:58:53,616 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 12:58:53,616 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 12:58:53,616 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 12:58:53,616 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 12:58:53,616 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 12:58:53,617 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 12:58:53,617 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 12:58:53,617 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 12:58:53,617 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 12:58:53,617 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 12:58:53,617 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 12:58:53,618 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 12:58:53,618 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 12:58:53,619 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 12:58:53,619 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 12:58:53,619 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 12:58:53,619 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 12:58:53,619 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 12:58:53,619 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 12:58:53,620 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 12:58:53,620 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 12:58:53,620 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 12:58:53,620 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 12:58:53,620 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 12:58:53,621 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 12:58:53,678 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 12:58:53,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 12:58:53,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 12:58:53,703 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 12:58:53,703 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 12:58:53,704 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power3-Safe.bpl [2018-10-04 12:58:53,704 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power3-Safe.bpl' [2018-10-04 12:58:53,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 12:58:53,743 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 12:58:53,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 12:58:53,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 12:58:53,744 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 12:58:53,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:58:53" (1/1) ... [2018-10-04 12:58:53,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:58:53" (1/1) ... [2018-10-04 12:58:53,778 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-04 12:58:53,779 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-04 12:58:53,779 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-04 12:58:53,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 12:58:53,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 12:58:53,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 12:58:53,782 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 12:58:53,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:58:53" (1/1) ... [2018-10-04 12:58:53,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:58:53" (1/1) ... [2018-10-04 12:58:53,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:58:53" (1/1) ... [2018-10-04 12:58:53,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:58:53" (1/1) ... [2018-10-04 12:58:53,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:58:53" (1/1) ... [2018-10-04 12:58:53,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:58:53" (1/1) ... [2018-10-04 12:58:53,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:58:53" (1/1) ... [2018-10-04 12:58:53,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 12:58:53,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 12:58:53,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 12:58:53,803 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 12:58:53,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:58:53" (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 [2018-10-04 12:58:53,860 INFO L124 BoogieDeclarations]: Specification and implementation of procedure power given in one single declaration [2018-10-04 12:58:53,861 INFO L130 BoogieDeclarations]: Found specification of procedure power [2018-10-04 12:58:53,861 INFO L138 BoogieDeclarations]: Found implementation of procedure power [2018-10-04 12:58:53,920 WARN L632 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-10-04 12:58:54,053 INFO L338 CfgBuilder]: Using library mode [2018-10-04 12:58:54,053 INFO L202 PluginConnector]: Adding new model Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:58:54 BoogieIcfgContainer [2018-10-04 12:58:54,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 12:58:54,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 12:58:54,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 12:58:54,058 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 12:58:54,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:58:53" (1/2) ... [2018-10-04 12:58:54,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d7b2c8 and model type Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 12:58:54, skipping insertion in model container [2018-10-04 12:58:54,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:58:54" (2/2) ... [2018-10-04 12:58:54,061 INFO L112 eAbstractionObserver]: Analyzing ICFG Power3-Safe.bpl [2018-10-04 12:58:54,072 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 12:58:54,080 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 12:58:54,133 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 12:58:54,134 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 12:58:54,134 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 12:58:54,134 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 12:58:54,135 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 12:58:54,135 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 12:58:54,135 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 12:58:54,135 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 12:58:54,135 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 12:58:54,152 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-10-04 12:58:54,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 12:58:54,159 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:58:54,160 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-04 12:58:54,161 INFO L423 AbstractCegarLoop]: === Iteration 1 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:58:54,168 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 12:58:54,169 INFO L82 PathProgramCache]: Analyzing trace with hash 924708, now seen corresponding path program 1 times [2018-10-04 12:58:54,171 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:58:54,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:58:54,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:54,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:58:54,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:54,268 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:58:54,268 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:58:54,268 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:58:54,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:58:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:58:54,320 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:58:54,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:58:54,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 12:58:54,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-04 12:58:54,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-04 12:58:54,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-04 12:58:54,568 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-04 12:58:54,573 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 5 states. [2018-10-04 12:58:54,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:58:54,698 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-10-04 12:58:54,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-04 12:58:54,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-10-04 12:58:54,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:58:54,711 INFO L225 Difference]: With dead ends: 10 [2018-10-04 12:58:54,711 INFO L226 Difference]: Without dead ends: 6 [2018-10-04 12:58:54,714 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time 0.0s impTime 4 [2018-10-04 12:58:54,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-10-04 12:58:54,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-10-04 12:58:54,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-10-04 12:58:54,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-10-04 12:58:54,748 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-10-04 12:58:54,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:58:54,748 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-10-04 12:58:54,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-04 12:58:54,748 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-10-04 12:58:54,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 12:58:54,749 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:58:54,749 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-10-04 12:58:54,749 INFO L423 AbstractCegarLoop]: === Iteration 2 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:58:54,750 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 12:58:54,750 INFO L82 PathProgramCache]: Analyzing trace with hash 28663973, now seen corresponding path program 1 times [2018-10-04 12:58:54,750 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:58:54,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:58:54,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:54,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:58:54,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:54,754 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:58:54,755 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:58:54,755 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:58:54,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:58:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:58:54,772 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:58:54,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:58:54,887 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:58:54,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-10-04 12:58:54,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-04 12:58:54,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-04 12:58:54,892 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-04 12:58:54,892 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 6 states. [2018-10-04 12:58:55,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:58:55,014 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-10-04 12:58:55,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-04 12:58:55,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-10-04 12:58:55,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:58:55,016 INFO L225 Difference]: With dead ends: 9 [2018-10-04 12:58:55,016 INFO L226 Difference]: Without dead ends: 7 [2018-10-04 12:58:55,017 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time 0.0s impTime 5 [2018-10-04 12:58:55,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-10-04 12:58:55,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-04 12:58:55,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-04 12:58:55,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-04 12:58:55,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-10-04 12:58:55,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:58:55,021 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-10-04 12:58:55,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-04 12:58:55,022 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-04 12:58:55,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 12:58:55,022 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:58:55,023 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-10-04 12:58:55,024 INFO L423 AbstractCegarLoop]: === Iteration 3 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:58:55,025 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 12:58:55,025 INFO L82 PathProgramCache]: Analyzing trace with hash 888581188, now seen corresponding path program 2 times [2018-10-04 12:58:55,025 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:58:55,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:58:55,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:55,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:58:55,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:55,031 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:58:55,032 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:58:55,032 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:58:55,047 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 12:58:55,061 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-04 12:58:55,061 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:58:55,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:58:55,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:58:55,383 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:58:55,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-04 12:58:55,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-04 12:58:55,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-04 12:58:55,384 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-04 12:58:55,384 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 7 states. [2018-10-04 12:58:55,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:58:55,596 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-10-04 12:58:55,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-04 12:58:55,597 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-10-04 12:58:55,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:58:55,598 INFO L225 Difference]: With dead ends: 10 [2018-10-04 12:58:55,598 INFO L226 Difference]: Without dead ends: 8 [2018-10-04 12:58:55,599 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time 0.2s impTime 6 [2018-10-04 12:58:55,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-10-04 12:58:55,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-10-04 12:58:55,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-10-04 12:58:55,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-10-04 12:58:55,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-10-04 12:58:55,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:58:55,604 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-10-04 12:58:55,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-04 12:58:55,604 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-10-04 12:58:55,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-04 12:58:55,605 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:58:55,605 INFO L375 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1] [2018-10-04 12:58:55,606 INFO L423 AbstractCegarLoop]: === Iteration 4 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:58:55,606 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 12:58:55,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1776211077, now seen corresponding path program 3 times [2018-10-04 12:58:55,606 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:58:55,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:58:55,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:55,608 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:58:55,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:55,611 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:58:55,611 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:58:55,611 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:58:55,628 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-04 12:58:55,640 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-10-04 12:58:55,640 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:58:55,641 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:58:55,859 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:58:55,891 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:58:55,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-04 12:58:55,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-04 12:58:55,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-04 12:58:55,893 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-04 12:58:55,893 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 8 states. [2018-10-04 12:58:56,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:58:56,061 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-10-04 12:58:56,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-04 12:58:56,062 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-10-04 12:58:56,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:58:56,063 INFO L225 Difference]: With dead ends: 11 [2018-10-04 12:58:56,063 INFO L226 Difference]: Without dead ends: 9 [2018-10-04 12:58:56,064 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time 0.1s impTime 7 [2018-10-04 12:58:56,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-04 12:58:56,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-04 12:58:56,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-04 12:58:56,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-04 12:58:56,068 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-10-04 12:58:56,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:58:56,068 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-04 12:58:56,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-04 12:58:56,069 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-04 12:58:56,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 12:58:56,069 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:58:56,069 INFO L375 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2018-10-04 12:58:56,070 INFO L423 AbstractCegarLoop]: === Iteration 5 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:58:56,070 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 12:58:56,070 INFO L82 PathProgramCache]: Analyzing trace with hash -772033436, now seen corresponding path program 4 times [2018-10-04 12:58:56,070 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:58:56,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:58:56,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:56,071 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:58:56,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:56,074 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:58:56,074 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:58:56,075 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:58:56,083 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-04 12:58:56,093 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-04 12:58:56,094 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:58:56,095 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:58:57,710 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:58:57,730 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:58:57,730 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-04 12:58:57,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-04 12:58:57,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-04 12:58:57,731 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-04 12:58:57,731 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 9 states. [2018-10-04 12:58:58,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:58:58,140 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-10-04 12:58:58,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-04 12:58:58,141 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2018-10-04 12:58:58,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:58:58,142 INFO L225 Difference]: With dead ends: 12 [2018-10-04 12:58:58,142 INFO L226 Difference]: Without dead ends: 10 [2018-10-04 12:58:58,142 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s Time 1.6s impTime 8 [2018-10-04 12:58:58,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-10-04 12:58:58,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-10-04 12:58:58,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-04 12:58:58,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-10-04 12:58:58,147 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-10-04 12:58:58,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:58:58,148 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-10-04 12:58:58,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-04 12:58:58,148 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-10-04 12:58:58,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-04 12:58:58,149 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:58:58,149 INFO L375 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1] [2018-10-04 12:58:58,149 INFO L423 AbstractCegarLoop]: === Iteration 6 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:58:58,149 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 12:58:58,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1836765285, now seen corresponding path program 5 times [2018-10-04 12:58:58,150 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:58:58,150 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:58:58,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:58,151 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:58:58,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:58:58,154 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:58:58,154 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:58:58,154 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:58:58,169 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-04 12:58:58,252 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-10-04 12:58:58,253 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:58:58,254 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:59:01,792 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:59:01,794 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Cannot handle case were solver cannot decide implication of predicates at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.ImplicationMap.internImplication(ImplicationMap.java:190) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.ImplicationMap.unifyPredicate(ImplicationMap.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.BPredicateUnifier.getOrConstructPredicateInternal(BPredicateUnifier.java:234) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.BPredicateUnifier.getOrConstructPredicate(BPredicateUnifier.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) 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:429) 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:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-04 12:59:01,799 INFO L168 Benchmark]: Toolchain (without parser) took 8057.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 182.4 MB). Peak memory consumption was 182.4 MB. Max. memory is 7.1 GB. [2018-10-04 12:59:01,801 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 12:59:01,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.88 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 12:59:01,803 INFO L168 Benchmark]: Boogie Preprocessor took 20.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 12:59:01,803 INFO L168 Benchmark]: RCFGBuilder took 251.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 12:59:01,804 INFO L168 Benchmark]: TraceAbstraction took 7744.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 161.3 MB). Peak memory consumption was 161.3 MB. Max. memory is 7.1 GB. [2018-10-04 12:59:01,809 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 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 37.88 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 20.29 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 251.13 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 7744.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 161.3 MB). Peak memory consumption was 161.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Cannot handle case were solver cannot decide implication of predicates de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Cannot handle case were solver cannot decide implication of predicates: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.ImplicationMap.internImplication(ImplicationMap.java:190) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Power3-Safe.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_12-59-01-822.csv Received shutdown request...