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/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-09-30 20:28:06,532 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 20:28:06,534 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 20:28:06,548 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 20:28:06,548 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 20:28:06,549 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 20:28:06,551 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 20:28:06,554 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 20:28:06,555 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 20:28:06,557 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 20:28:06,559 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 20:28:06,559 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 20:28:06,560 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 20:28:06,569 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 20:28:06,571 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 20:28:06,572 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 20:28:06,574 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 20:28:06,576 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 20:28:06,580 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 20:28:06,582 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 20:28:06,584 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 20:28:06,586 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 20:28:06,591 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-30 20:28:06,606 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 [2018-09-30 20:28:06,630 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 20:28:06,630 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 20:28:06,631 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 20:28:06,631 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 20:28:06,632 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 20:28:06,632 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 20:28:06,632 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 20:28:06,632 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 20:28:06,633 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 20:28:06,633 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 20:28:06,633 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 20:28:06,633 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 20:28:06,633 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 20:28:06,634 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 20:28:06,634 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 20:28:06,634 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 20:28:06,634 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 20:28:06,634 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 20:28:06,635 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 20:28:06,636 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 20:28:06,636 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 20:28:06,636 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 20:28:06,636 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 20:28:06,636 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 20:28:06,637 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 20:28:06,637 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 20:28:06,637 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 20:28:06,637 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 20:28:06,637 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 20:28:06,638 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 20:28:06,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 20:28:06,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 20:28:06,701 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 20:28:06,702 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 20:28:06,703 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 20:28:06,704 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl [2018-09-30 20:28:06,704 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl' [2018-09-30 20:28:06,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 20:28:06,754 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 20:28:06,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 20:28:06,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 20:28:06,755 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 20:28:06,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:28:06" (1/1) ... [2018-09-30 20:28:06,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:28:06" (1/1) ... [2018-09-30 20:28:06,791 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 20:28:06,791 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 20:28:06,791 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 20:28:06,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 20:28:06,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 20:28:06,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 20:28:06,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 20:28:06,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:28:06" (1/1) ... [2018-09-30 20:28:06,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:28:06" (1/1) ... [2018-09-30 20:28:06,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:28:06" (1/1) ... [2018-09-30 20:28:06,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:28:06" (1/1) ... [2018-09-30 20:28:06,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:28:06" (1/1) ... [2018-09-30 20:28:06,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:28:06" (1/1) ... [2018-09-30 20:28:06,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:28:06" (1/1) ... [2018-09-30 20:28:06,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 20:28:06,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 20:28:06,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 20:28:06,817 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 20:28:06,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:28:06" (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 [2018-09-30 20:28:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-30 20:28:06,878 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-30 20:28:07,112 INFO L345 CfgBuilder]: Using library mode [2018-09-30 20:28:07,113 INFO L202 PluginConnector]: Adding new model codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 08:28:07 BoogieIcfgContainer [2018-09-30 20:28:07,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 20:28:07,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 20:28:07,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 20:28:07,118 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 20:28:07,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 08:28:06" (1/2) ... [2018-09-30 20:28:07,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@538134 and model type codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 08:28:07, skipping insertion in model container [2018-09-30 20:28:07,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 08:28:07" (2/2) ... [2018-09-30 20:28:07,122 INFO L112 eAbstractionObserver]: Analyzing ICFG codeblockAssertOrder01.bpl [2018-09-30 20:28:07,133 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 20:28:07,145 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 20:28:07,204 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 20:28:07,205 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 20:28:07,206 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 20:28:07,206 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 20:28:07,206 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 20:28:07,206 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 20:28:07,206 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 20:28:07,207 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 20:28:07,207 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 20:28:07,222 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-30 20:28:07,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 20:28:07,229 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:28:07,230 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-30 20:28:07,234 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 20:28:07,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 20:28:07,242 INFO L82 PathProgramCache]: Analyzing trace with hash 29984, now seen corresponding path program 1 times [2018-09-30 20:28:07,245 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:28:07,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:28:07,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:28:07,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:28:07,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:28:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:28:07,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 20:28:07,402 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:28:07,403 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 20:28:07,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 20:28:07,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 20:28:07,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 20:28:07,421 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-30 20:28:07,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:28:07,453 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-09-30 20:28:07,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:28:07,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-30 20:28:07,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:28:07,466 INFO L225 Difference]: With dead ends: 11 [2018-09-30 20:28:07,466 INFO L226 Difference]: Without dead ends: 5 [2018-09-30 20:28:07,471 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 20:28:07,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-09-30 20:28:07,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-09-30 20:28:07,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-09-30 20:28:07,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-09-30 20:28:07,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-09-30 20:28:07,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:28:07,508 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-09-30 20:28:07,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 20:28:07,508 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-09-30 20:28:07,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 20:28:07,509 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:28:07,509 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-30 20:28:07,509 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 20:28:07,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 20:28:07,510 INFO L82 PathProgramCache]: Analyzing trace with hash 927558, now seen corresponding path program 1 times [2018-09-30 20:28:07,510 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:28:07,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:28:07,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:28:07,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:28:07,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:28:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:28:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 20:28:07,664 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 20:28:07,664 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-30 20:28:07,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:28:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:28:07,728 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 20:28:07,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 20:28:07,767 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 20:28:07,767 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-09-30 20:28:07,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 20:28:07,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 20:28:07,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-30 20:28:07,769 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-09-30 20:28:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:28:07,816 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-30 20:28:07,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-30 20:28:07,817 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-09-30 20:28:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:28:07,818 INFO L225 Difference]: With dead ends: 8 [2018-09-30 20:28:07,818 INFO L226 Difference]: Without dead ends: 6 [2018-09-30 20:28:07,819 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-30 20:28:07,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-09-30 20:28:07,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-09-30 20:28:07,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-30 20:28:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-30 20:28:07,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-09-30 20:28:07,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:28:07,822 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-09-30 20:28:07,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 20:28:07,822 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-30 20:28:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 20:28:07,822 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:28:07,823 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-09-30 20:28:07,823 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 20:28:07,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 20:28:07,823 INFO L82 PathProgramCache]: Analyzing trace with hash 28752352, now seen corresponding path program 2 times [2018-09-30 20:28:07,824 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:28:07,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:28:07,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:28:07,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:28:07,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:28:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:28:07,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 20:28:07,940 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 20:28:07,940 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-30 20:28:07,951 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-30 20:28:07,966 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-09-30 20:28:07,966 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 20:28:07,967 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 20:28:08,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-09-30 20:28:08,022 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-30 20:28:08,062 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-30 20:28:08,063 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:18 [2018-09-30 20:28:08,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-09-30 20:28:08,128 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-09-30 20:28:08,128 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 6 [2018-09-30 20:28:08,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-30 20:28:08,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-30 20:28:08,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-30 20:28:08,129 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 6 states. [2018-09-30 20:28:08,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:28:08,188 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-09-30 20:28:08,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-30 20:28:08,189 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-09-30 20:28:08,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:28:08,189 INFO L225 Difference]: With dead ends: 8 [2018-09-30 20:28:08,189 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 20:28:08,190 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-30 20:28:08,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 20:28:08,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 20:28:08,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 20:28:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 20:28:08,191 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-09-30 20:28:08,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:28:08,191 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 20:28:08,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-30 20:28:08,192 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 20:28:08,192 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 20:28:08,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 20:28:08,209 INFO L429 ceAbstractionStarter]: At program point L15-1(lines 15 17) the Hoare annotation is: true [2018-09-30 20:28:08,209 INFO L426 ceAbstractionStarter]: For program point mainENTRY(lines 10 22) no Hoare annotation was computed. [2018-09-30 20:28:08,209 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 22) no Hoare annotation was computed. [2018-09-30 20:28:08,209 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 22) no Hoare annotation was computed. [2018-09-30 20:28:08,214 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 21) no Hoare annotation was computed. [2018-09-30 20:28:08,214 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-30 20:28:08,221 INFO L202 PluginConnector]: Adding new model codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 08:28:08 BoogieIcfgContainer [2018-09-30 20:28:08,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 20:28:08,222 INFO L168 Benchmark]: Toolchain (without parser) took 1470.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2018-09-30 20:28:08,224 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 20:28:08,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.70 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 20:28:08,225 INFO L168 Benchmark]: Boogie Preprocessor took 21.97 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 20:28:08,226 INFO L168 Benchmark]: RCFGBuilder took 297.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-30 20:28:08,227 INFO L168 Benchmark]: TraceAbstraction took 1107.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2018-09-30 20:28:08,231 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.70 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.97 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 297.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1107.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: true - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 6 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 21 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 16 ConstructedInterpolants, 1 QuantifiedInterpolants, 182 SizeOfPredicates, 2 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/codeblockAssertOrder01.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_20-28-08-244.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/codeblockAssertOrder01.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_20-28-08-244.csv Received shutdown request...