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.epf -i ../../../trunk/examples/programs/toy/nonlinear/Power3-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 12:36:56,540 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 12:36:56,542 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 12:36:56,553 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 12:36:56,554 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 12:36:56,555 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 12:36:56,556 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 12:36:56,558 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 12:36:56,560 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 12:36:56,561 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 12:36:56,562 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 12:36:56,562 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 12:36:56,563 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 12:36:56,564 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 12:36:56,565 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 12:36:56,566 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 12:36:56,567 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 12:36:56,569 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 12:36:56,571 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 12:36:56,573 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 12:36:56,574 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 12:36:56,575 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 12:36:56,578 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-04 12:36:56,588 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-04 12:36:56,618 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 12:36:56,618 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 12:36:56,620 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 12:36:56,620 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 12:36:56,621 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 12:36:56,621 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 12:36:56,621 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 12:36:56,622 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 12:36:56,623 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 12:36:56,623 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 12:36:56,623 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 12:36:56,623 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 12:36:56,624 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 12:36:56,624 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 12:36:56,624 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 12:36:56,624 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 12:36:56,624 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 12:36:56,625 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 12:36:56,626 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 12:36:56,626 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 12:36:56,626 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 12:36:56,626 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 12:36:56,626 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 12:36:56,627 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 12:36:56,627 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 12:36:56,627 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 12:36:56,627 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 12:36:56,627 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 12:36:56,627 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 12:36:56,628 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 12:36:56,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 12:36:56,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 12:36:56,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 12:36:56,711 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 12:36:56,712 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 12:36:56,712 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power3-Safe.bpl [2018-10-04 12:36:56,713 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Power3-Safe.bpl' [2018-10-04 12:36:56,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 12:36:56,756 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 12:36:56,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 12:36:56,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 12:36:56,757 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 12:36:56,780 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 12:36:56" (1/1) ... [2018-10-04 12:36:56,793 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 12:36:56" (1/1) ... [2018-10-04 12:36:56,798 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-04 12:36:56,798 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-04 12:36:56,798 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-04 12:36:56,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 12:36:56,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 12:36:56,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 12:36:56,802 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 12:36:56,816 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 12:36:56" (1/1) ... [2018-10-04 12:36:56,816 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 12:36:56" (1/1) ... [2018-10-04 12:36:56,817 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 12:36:56" (1/1) ... [2018-10-04 12:36:56,817 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 12:36:56" (1/1) ... [2018-10-04 12:36:56,821 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 12:36:56" (1/1) ... [2018-10-04 12:36:56,828 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 12:36:56" (1/1) ... [2018-10-04 12:36:56,830 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 12:36:56" (1/1) ... [2018-10-04 12:36:56,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 12:36:56,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 12:36:56,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 12:36:56,833 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 12:36:56,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:36:56" (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 12:36:56,907 INFO L124 BoogieDeclarations]: Specification and implementation of procedure power given in one single declaration [2018-10-04 12:36:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure power [2018-10-04 12:36:56,908 INFO L138 BoogieDeclarations]: Found implementation of procedure power [2018-10-04 12:36:56,979 WARN L632 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-10-04 12:36:57,143 INFO L338 CfgBuilder]: Using library mode [2018-10-04 12:36:57,144 INFO L202 PluginConnector]: Adding new model Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:36:57 BoogieIcfgContainer [2018-10-04 12:36:57,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 12:36:57,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 12:36:57,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 12:36:57,151 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 12:36:57,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:36:56" (1/2) ... [2018-10-04 12:36:57,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30768626 and model type Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 12:36:57, skipping insertion in model container [2018-10-04 12:36:57,154 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 12:36:57" (2/2) ... [2018-10-04 12:36:57,155 INFO L112 eAbstractionObserver]: Analyzing ICFG Power3-Safe.bpl [2018-10-04 12:36:57,165 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 12:36:57,173 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 12:36:57,217 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 12:36:57,217 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 12:36:57,218 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 12:36:57,218 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 12:36:57,218 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 12:36:57,218 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 12:36:57,218 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 12:36:57,218 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 12:36:57,219 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 12:36:57,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-10-04 12:36:57,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 12:36:57,240 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:36:57,240 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-04 12:36:57,242 INFO L423 AbstractCegarLoop]: === Iteration 1 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:36:57,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:36:57,248 INFO L82 PathProgramCache]: Analyzing trace with hash 924708, now seen corresponding path program 1 times [2018-10-04 12:36:57,250 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:36:57,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:36:57,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:36:57,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:36:57,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:36:57,331 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:36:57,331 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:36:57,331 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 12:36:57,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:36:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:36:57,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:36:57,528 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-04 12:36:57,616 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 12:36:57,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 12:36:57,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-04 12:36:57,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-04 12:36:57,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-04 12:36:57,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-04 12:36:57,657 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 5 states. [2018-10-04 12:36:57,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:36:57,785 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-10-04 12:36:57,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-04 12:36:57,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-10-04 12:36:57,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:36:57,799 INFO L225 Difference]: With dead ends: 10 [2018-10-04 12:36:57,799 INFO L226 Difference]: Without dead ends: 6 [2018-10-04 12:36:57,803 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-04 12:36:57,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-10-04 12:36:57,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-10-04 12:36:57,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-10-04 12:36:57,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-10-04 12:36:57,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-10-04 12:36:57,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:36:57,839 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-10-04 12:36:57,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-04 12:36:57,839 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-10-04 12:36:57,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 12:36:57,840 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:36:57,840 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-10-04 12:36:57,841 INFO L423 AbstractCegarLoop]: === Iteration 2 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:36:57,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:36:57,841 INFO L82 PathProgramCache]: Analyzing trace with hash 28663973, now seen corresponding path program 1 times [2018-10-04 12:36:57,841 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:36:57,841 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:36:57,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:36:57,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:36:57,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:36:57,846 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:36:57,847 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:36:57,847 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 12:36:57,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:36:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:36:57,871 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:36:58,049 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 12:36:58,070 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:36:58,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-10-04 12:36:58,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-04 12:36:58,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-04 12:36:58,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-04 12:36:58,074 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 6 states. [2018-10-04 12:36:58,290 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-04 12:36:58,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:36:58,338 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-10-04 12:36:58,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-04 12:36:58,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-10-04 12:36:58,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:36:58,339 INFO L225 Difference]: With dead ends: 9 [2018-10-04 12:36:58,340 INFO L226 Difference]: Without dead ends: 7 [2018-10-04 12:36:58,341 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-04 12:36:58,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-10-04 12:36:58,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-04 12:36:58,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-04 12:36:58,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-04 12:36:58,344 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-10-04 12:36:58,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:36:58,344 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-10-04 12:36:58,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-04 12:36:58,344 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-04 12:36:58,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 12:36:58,345 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:36:58,345 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-10-04 12:36:58,345 INFO L423 AbstractCegarLoop]: === Iteration 3 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:36:58,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:36:58,345 INFO L82 PathProgramCache]: Analyzing trace with hash 888581188, now seen corresponding path program 2 times [2018-10-04 12:36:58,346 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:36:58,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:36:58,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:36:58,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:36:58,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:36:58,350 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:36:58,350 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:36:58,350 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 12:36:58,363 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 12:36:58,371 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-04 12:36:58,371 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:36:58,373 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:36:58,574 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 12:36:58,595 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:36:58,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-04 12:36:58,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-04 12:36:58,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-04 12:36:58,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-04 12:36:58,597 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 7 states. [2018-10-04 12:36:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:36:58,835 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-10-04 12:36:58,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-04 12:36:58,836 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-10-04 12:36:58,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:36:58,837 INFO L225 Difference]: With dead ends: 10 [2018-10-04 12:36:58,837 INFO L226 Difference]: Without dead ends: 8 [2018-10-04 12:36:58,838 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-04 12:36:58,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-10-04 12:36:58,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-10-04 12:36:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-10-04 12:36:58,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-10-04 12:36:58,842 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-10-04 12:36:58,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:36:58,843 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-10-04 12:36:58,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-04 12:36:58,843 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-10-04 12:36:58,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-04 12:36:58,844 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:36:58,844 INFO L375 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1] [2018-10-04 12:36:58,844 INFO L423 AbstractCegarLoop]: === Iteration 4 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:36:58,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:36:58,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1776211077, now seen corresponding path program 3 times [2018-10-04 12:36:58,845 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:36:58,845 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:36:58,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:36:58,846 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:36:58,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:36:58,850 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:36:58,850 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:36:58,850 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 12:36:58,862 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-04 12:36:58,874 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-10-04 12:36:58,875 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:36:58,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:37:00,725 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 12:37:00,745 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:37:00,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-10-04 12:37:00,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-04 12:37:00,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-04 12:37:00,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-04 12:37:00,747 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 8 states. [2018-10-04 12:37:02,418 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-04 12:37:02,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:37:02,510 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-10-04 12:37:02,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-04 12:37:02,511 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-10-04 12:37:02,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:37:02,512 INFO L225 Difference]: With dead ends: 11 [2018-10-04 12:37:02,512 INFO L226 Difference]: Without dead ends: 9 [2018-10-04 12:37:02,513 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-10-04 12:37:02,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-04 12:37:02,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-04 12:37:02,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-04 12:37:02,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-04 12:37:02,524 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-10-04 12:37:02,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:37:02,526 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-04 12:37:02,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-04 12:37:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-04 12:37:02,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 12:37:02,528 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:37:02,528 INFO L375 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2018-10-04 12:37:02,529 INFO L423 AbstractCegarLoop]: === Iteration 5 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:37:02,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:37:02,529 INFO L82 PathProgramCache]: Analyzing trace with hash -772033436, now seen corresponding path program 4 times [2018-10-04 12:37:02,529 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:37:02,530 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:37:02,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:37:02,531 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:37:02,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:37:02,534 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:37:02,536 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:37:02,536 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 12:37:02,551 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-04 12:37:02,566 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-04 12:37:02,567 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:37:02,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:37:03,252 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 12:37:03,272 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:37:03,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-04 12:37:03,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-04 12:37:03,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-04 12:37:03,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-04 12:37:03,274 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 9 states. [2018-10-04 12:37:05,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:37:05,524 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-10-04 12:37:05,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-04 12:37:05,525 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2018-10-04 12:37:05,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:37:05,526 INFO L225 Difference]: With dead ends: 12 [2018-10-04 12:37:05,526 INFO L226 Difference]: Without dead ends: 10 [2018-10-04 12:37:05,527 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-04 12:37:05,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-10-04 12:37:05,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-10-04 12:37:05,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-04 12:37:05,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-10-04 12:37:05,532 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-10-04 12:37:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:37:05,532 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-10-04 12:37:05,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-04 12:37:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-10-04 12:37:05,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-04 12:37:05,533 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:37:05,533 INFO L375 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1] [2018-10-04 12:37:05,534 INFO L423 AbstractCegarLoop]: === Iteration 6 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:37:05,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:37:05,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1836765285, now seen corresponding path program 5 times [2018-10-04 12:37:05,534 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:37:05,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:37:05,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:37:05,535 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:37:05,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:37:05,538 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:37:05,538 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:37:05,539 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 12:37:05,552 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-04 12:37:05,607 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-10-04 12:37:05,608 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:37:05,609 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:37:09,877 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:37:09,897 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:37:09,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-04 12:37:09,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-04 12:37:09,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-04 12:37:09,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=64, Unknown=2, NotChecked=0, Total=90 [2018-10-04 12:37:09,899 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 10 states. [2018-10-04 12:37:14,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:37:14,082 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-10-04 12:37:14,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-04 12:37:14,083 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2018-10-04 12:37:14,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:37:14,084 INFO L225 Difference]: With dead ends: 13 [2018-10-04 12:37:14,085 INFO L226 Difference]: Without dead ends: 11 [2018-10-04 12:37:14,085 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=29, Invalid=78, Unknown=3, NotChecked=0, Total=110 [2018-10-04 12:37:14,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-10-04 12:37:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-10-04 12:37:14,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-04 12:37:14,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-10-04 12:37:14,094 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-10-04 12:37:14,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:37:14,094 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-10-04 12:37:14,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-04 12:37:14,095 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-10-04 12:37:14,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 12:37:14,095 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:37:14,095 INFO L375 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1] [2018-10-04 12:37:14,096 INFO L423 AbstractCegarLoop]: === Iteration 7 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:37:14,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:37:14,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1105147012, now seen corresponding path program 6 times [2018-10-04 12:37:14,097 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:37:14,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:37:14,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:37:14,105 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:37:14,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:37:14,110 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:37:14,110 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:37:14,110 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:37:14,122 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-10-04 12:37:14,353 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-10-04 12:37:14,353 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:37:14,355 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:37:18,599 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-04 12:37:18,601 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:37:18,622 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:37:18,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-10-04 12:37:18,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-04 12:37:18,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-04 12:37:18,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=82, Unknown=1, NotChecked=0, Total=110 [2018-10-04 12:37:18,623 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 11 states. [2018-10-04 12:37:20,414 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-10-04 12:37:20,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:37:20,427 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-10-04 12:37:20,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-04 12:37:20,428 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 10 [2018-10-04 12:37:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:37:20,429 INFO L225 Difference]: With dead ends: 14 [2018-10-04 12:37:20,429 INFO L226 Difference]: Without dead ends: 12 [2018-10-04 12:37:20,430 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2018-10-04 12:37:20,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-04 12:37:20,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-04 12:37:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-04 12:37:20,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-10-04 12:37:20,436 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-10-04 12:37:20,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:37:20,436 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-04 12:37:20,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-04 12:37:20,436 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-10-04 12:37:20,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-04 12:37:20,437 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:37:20,437 INFO L375 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1] [2018-10-04 12:37:20,437 INFO L423 AbstractCegarLoop]: === Iteration 8 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:37:20,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:37:20,438 INFO L82 PathProgramCache]: Analyzing trace with hash -100182971, now seen corresponding path program 7 times [2018-10-04 12:37:20,438 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:37:20,438 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:37:20,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:37:20,439 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:37:20,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:37:20,442 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:37:20,442 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:37:20,442 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:37:20,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:37:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:37:20,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:37:47,493 WARN L178 SmtUtils]: Spent 2.41 s on a formula simplification that was a NOOP. DAG size: 31 [2018-10-04 12:37:54,165 WARN L178 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-10-04 12:37:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 26 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:37:54,197 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:37:54,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-04 12:37:54,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-04 12:37:54,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-04 12:37:54,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=94, Unknown=8, NotChecked=0, Total=132 [2018-10-04 12:37:54,199 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2018-10-04 12:38:14,188 WARN L178 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-10-04 12:38:14,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:38:14,202 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-10-04 12:38:14,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-04 12:38:14,203 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2018-10-04 12:38:14,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:38:14,204 INFO L225 Difference]: With dead ends: 15 [2018-10-04 12:38:14,204 INFO L226 Difference]: Without dead ends: 13 [2018-10-04 12:38:14,205 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.4s TimeCoverageRelationStatistics Valid=35, Invalid=111, Unknown=10, NotChecked=0, Total=156 [2018-10-04 12:38:14,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-10-04 12:38:14,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-10-04 12:38:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-04 12:38:14,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-10-04 12:38:14,213 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-10-04 12:38:14,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:38:14,213 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-10-04 12:38:14,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-04 12:38:14,214 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-10-04 12:38:14,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 12:38:14,214 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:38:14,214 INFO L375 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1] [2018-10-04 12:38:14,214 INFO L423 AbstractCegarLoop]: === Iteration 9 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:38:14,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:38:14,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1189293220, now seen corresponding path program 8 times [2018-10-04 12:38:14,215 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:38:14,215 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:38:14,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:38:14,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:38:14,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:38:14,219 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:38:14,219 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:38:14,219 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:38:14,234 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 12:38:14,941 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-04 12:38:14,942 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:38:14,944 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:38:16,536 WARN L178 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-10-04 12:38:26,173 WARN L178 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-10-04 12:38:29,479 WARN L178 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-04 12:38:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 35 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:38:29,504 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:38:29,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-10-04 12:38:29,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-04 12:38:29,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-04 12:38:29,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=118, Unknown=5, NotChecked=0, Total=156 [2018-10-04 12:38:29,505 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 13 states. [2018-10-04 12:38:39,325 WARN L178 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 33 [2018-10-04 12:38:39,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:38:39,339 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-10-04 12:38:39,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-04 12:38:39,340 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 12 [2018-10-04 12:38:39,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:38:39,341 INFO L225 Difference]: With dead ends: 16 [2018-10-04 12:38:39,341 INFO L226 Difference]: Without dead ends: 14 [2018-10-04 12:38:39,342 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=38, Invalid=138, Unknown=6, NotChecked=0, Total=182 [2018-10-04 12:38:39,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-04 12:38:39,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-04 12:38:39,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-04 12:38:39,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-10-04 12:38:39,351 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-10-04 12:38:39,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:38:39,351 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-10-04 12:38:39,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-04 12:38:39,352 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-10-04 12:38:39,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-04 12:38:39,352 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:38:39,352 INFO L375 BasicCegarLoop]: trace histogram [9, 1, 1, 1, 1] [2018-10-04 12:38:39,353 INFO L423 AbstractCegarLoop]: === Iteration 10 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:38:39,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:38:39,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1786617819, now seen corresponding path program 9 times [2018-10-04 12:38:39,353 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:38:39,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:38:39,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:38:39,355 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:38:39,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:38:39,357 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:38:39,358 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:38:39,358 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:38:39,366 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-04 12:38:41,471 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-10-04 12:38:41,471 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:38:41,473 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:38:43,502 WARN L178 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-10-04 12:38:45,883 WARN L178 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-04 12:38:59,580 WARN L178 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-10-04 12:39:03,840 WARN L178 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-10-04 12:39:03,842 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:39:03,862 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:39:03,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-04 12:39:03,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-04 12:39:03,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-04 12:39:03,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=139, Unknown=7, NotChecked=0, Total=182 [2018-10-04 12:39:03,863 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 14 states. [2018-10-04 12:39:17,180 WARN L178 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-10-04 12:39:17,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:39:17,197 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-10-04 12:39:17,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-04 12:39:17,198 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13 [2018-10-04 12:39:17,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:39:17,199 INFO L225 Difference]: With dead ends: 17 [2018-10-04 12:39:17,199 INFO L226 Difference]: Without dead ends: 15 [2018-10-04 12:39:17,214 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.7s TimeCoverageRelationStatistics Valid=41, Invalid=161, Unknown=8, NotChecked=0, Total=210 [2018-10-04 12:39:17,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-04 12:39:17,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-10-04 12:39:17,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-04 12:39:17,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-10-04 12:39:17,231 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2018-10-04 12:39:17,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:39:17,231 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-10-04 12:39:17,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-04 12:39:17,232 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-10-04 12:39:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 12:39:17,232 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:39:17,232 INFO L375 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2018-10-04 12:39:17,233 INFO L423 AbstractCegarLoop]: === Iteration 11 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:39:17,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:39:17,233 INFO L82 PathProgramCache]: Analyzing trace with hash 449420484, now seen corresponding path program 10 times [2018-10-04 12:39:17,233 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:39:17,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:39:17,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:39:17,234 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:39:17,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:39:17,237 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:39:17,237 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:39:17,237 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:39:17,246 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-04 12:39:17,273 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-04 12:39:17,273 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:39:17,275 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:39:47,954 WARN L178 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 31 [2018-10-04 12:40:03,204 WARN L178 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-10-04 12:40:24,792 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-10-04 12:40:44,444 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-10-04 12:40:46,294 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 53 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:40:46,314 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:40:46,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-10-04 12:40:46,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-04 12:40:46,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-04 12:40:46,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=144, Unknown=27, NotChecked=0, Total=210 [2018-10-04 12:40:46,315 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 15 states. [2018-10-04 12:41:35,453 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-10-04 12:41:35,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:41:35,536 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-10-04 12:41:35,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-04 12:41:35,537 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 14 [2018-10-04 12:41:35,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:41:35,537 INFO L225 Difference]: With dead ends: 18 [2018-10-04 12:41:35,537 INFO L226 Difference]: Without dead ends: 16 [2018-10-04 12:41:35,538 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 90.1s TimeCoverageRelationStatistics Valid=44, Invalid=169, Unknown=27, NotChecked=0, Total=240 [2018-10-04 12:41:35,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-10-04 12:41:35,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-10-04 12:41:35,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-10-04 12:41:35,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-10-04 12:41:35,552 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-10-04 12:41:35,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:41:35,556 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-10-04 12:41:35,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-04 12:41:35,556 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-10-04 12:41:35,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-04 12:41:35,557 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:41:35,557 INFO L375 BasicCegarLoop]: trace histogram [11, 1, 1, 1, 1] [2018-10-04 12:41:35,557 INFO L423 AbstractCegarLoop]: === Iteration 12 === [powerErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-10-04 12:41:35,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:41:35,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1047131141, now seen corresponding path program 11 times [2018-10-04 12:41:35,558 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:41:35,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:41:35,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:41:35,559 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:41:35,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:41:35,564 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-04 12:41:35,565 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-04 12:41:35,570 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:41:35,586 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-04 12:41:35,676 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-10-04 12:41:35,676 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:41:35,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:41:36,455 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-04 12:41:39,031 WARN L178 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-10-04 12:41:41,048 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_power_res_62 Int) (v_power_res_63 Int) (v_power_res_68 Int) (v_power_res_64 Int) (v_power_res_65 Int) (v_power_res_66 Int) (v_power_res_67 Int)) (and (>= v_power_res_68 (* c_power_a v_power_res_67)) (>= v_power_res_66 (* c_power_a v_power_res_65)) (<= c_power_a v_power_res_62) (>= v_power_res_67 (* c_power_a v_power_res_66)) (>= v_power_res_64 (* c_power_a v_power_res_63)) (>= v_power_res_65 (* c_power_a v_power_res_64)) (>= v_power_res_63 (* c_power_a v_power_res_62)) (= (* c_power_a v_power_res_68) c_power_res))) (<= 2 c_power_a) (= c_power_b (+ c_power_tmp 8))) is different from false [2018-10-04 12:41:44,602 WARN L178 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 35 Received shutdown request... [2018-10-04 12:41:48,730 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-04 12:41:48,931 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-04 12:41:48,931 WARN L549 AbstractCegarLoop]: Verification canceled [2018-10-04 12:41:48,940 WARN L205 ceAbstractionStarter]: Timeout [2018-10-04 12:41:48,941 INFO L202 PluginConnector]: Adding new model Power3-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 12:41:48 BoogieIcfgContainer [2018-10-04 12:41:48,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 12:41:48,943 INFO L168 Benchmark]: Toolchain (without parser) took 292187.81 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 18.4 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 120.1 MB). Peak memory consumption was 138.4 MB. Max. memory is 7.1 GB. [2018-10-04 12:41:48,944 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 12:41:48,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.31 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 12:41:48,945 INFO L168 Benchmark]: Boogie Preprocessor took 29.99 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 12:41:48,946 INFO L168 Benchmark]: RCFGBuilder took 313.56 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 12:41:48,946 INFO L168 Benchmark]: TraceAbstraction took 291793.48 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 18.4 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 98.9 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. [2018-10-04 12:41:48,950 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 44.31 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 29.99 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 313.56 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 291793.48 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 18.4 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 98.9 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 9]: Timeout (TraceAbstraction) Unable to prove that procedure postcondition always holds (line 9). Cancelled while BasicCegarLoop was analyzing trace of length 16 with TraceHistMax 11, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. TIMEOUT Result, 291.7s OverallTime, 12 OverallIterations, 11 TraceHistogramMax, 103.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 65 SDslu, 11 SDs, 0 SdLazy, 836 SolverSat, 62 SolverUnsat, 29 SolverUnknown, 0 SolverNotchecked, 73.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 187.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 170.9s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 88 ConstructedInterpolants, 48 QuantifiedInterpolants, 19975 SizeOfPredicates, 11 NumberOfNonLiveVariables, 385 ConjunctsInSsa, 226 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 0/220 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Power3-Safe.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_12-41-48-962.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Power3-Safe.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_12-41-48-962.csv Completed graceful shutdown