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/20170319-ConjunctivePathPrograms/cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-bd42740 [2018-09-23 21:18:11,693 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-23 21:18:11,696 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-23 21:18:11,716 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-23 21:18:11,716 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-23 21:18:11,718 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-23 21:18:11,719 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-23 21:18:11,721 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-23 21:18:11,723 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-23 21:18:11,727 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-23 21:18:11,730 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-23 21:18:11,768 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 [2018-09-23 21:18:11,789 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-23 21:18:11,790 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-23 21:18:11,791 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-23 21:18:11,791 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-23 21:18:11,792 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-23 21:18:11,792 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-23 21:18:11,792 INFO L133 SettingsManager]: * Use SBE=true [2018-09-23 21:18:11,793 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-23 21:18:11,794 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-23 21:18:11,794 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-23 21:18:11,794 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-23 21:18:11,794 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-23 21:18:11,794 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-23 21:18:11,794 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-23 21:18:11,795 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-23 21:18:11,795 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-23 21:18:11,795 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-23 21:18:11,795 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-23 21:18:11,796 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-23 21:18:11,796 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-23 21:18:11,796 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-23 21:18:11,796 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-23 21:18:11,797 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-23 21:18:11,797 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-23 21:18:11,797 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-23 21:18:11,797 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-23 21:18:11,798 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-23 21:18:11,798 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-23 21:18:11,798 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-23 21:18:11,798 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-23 21:18:11,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-23 21:18:11,858 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-23 21:18:11,866 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-23 21:18:11,868 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-23 21:18:11,868 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-23 21:18:11,870 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl [2018-09-23 21:18:11,870 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl' [2018-09-23 21:18:11,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-23 21:18:11,934 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-23 21:18:11,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-23 21:18:11,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-23 21:18:11,935 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-23 21:18:11,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:18:11" (1/1) ... [2018-09-23 21:18:11,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:18:11" (1/1) ... [2018-09-23 21:18:11,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-23 21:18:11,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-23 21:18:11,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-23 21:18:11,978 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-23 21:18:11,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:18:11" (1/1) ... [2018-09-23 21:18:11,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:18:11" (1/1) ... [2018-09-23 21:18:11,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:18:11" (1/1) ... [2018-09-23 21:18:11,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:18:11" (1/1) ... [2018-09-23 21:18:11,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:18:11" (1/1) ... [2018-09-23 21:18:11,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:18:11" (1/1) ... [2018-09-23 21:18:11,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:18:11" (1/1) ... [2018-09-23 21:18:12,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-23 21:18:12,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-23 21:18:12,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-23 21:18:12,002 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-23 21:18:12,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:18:11" (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 [2018-09-23 21:18:12,072 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-23 21:18:12,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-23 21:18:12,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-23 21:18:12,258 INFO L354 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-23 21:18:12,258 INFO L202 PluginConnector]: Adding new model cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 09:18:12 BoogieIcfgContainer [2018-09-23 21:18:12,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-23 21:18:12,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-23 21:18:12,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-23 21:18:12,263 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-23 21:18:12,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:18:11" (1/2) ... [2018-09-23 21:18:12,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ea5774 and model type cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 09:18:12, skipping insertion in model container [2018-09-23 21:18:12,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 09:18:12" (2/2) ... [2018-09-23 21:18:12,266 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl [2018-09-23 21:18:12,276 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-23 21:18:12,285 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-23 21:18:12,337 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-23 21:18:12,338 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-23 21:18:12,338 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-23 21:18:12,339 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-23 21:18:12,339 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-23 21:18:12,339 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-23 21:18:12,339 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-23 21:18:12,339 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-23 21:18:12,340 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-23 21:18:12,356 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-23 21:18:12,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-23 21:18:12,363 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:18:12,364 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-23 21:18:12,365 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:18:12,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:18:12,372 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-09-23 21:18:12,374 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:18:12,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:18:12,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:18:12,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:18:12,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:18:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:18:12,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:18:12,609 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:18:12,609 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:18:12,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:18:12,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:18:12,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:18:12,630 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-23 21:18:12,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:18:12,688 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-09-23 21:18:12,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:18:12,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-23 21:18:12,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:18:12,701 INFO L225 Difference]: With dead ends: 9 [2018-09-23 21:18:12,702 INFO L226 Difference]: Without dead ends: 5 [2018-09-23 21:18:12,705 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 [2018-09-23 21:18:12,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-09-23 21:18:12,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-09-23 21:18:12,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-09-23 21:18:12,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-09-23 21:18:12,745 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-09-23 21:18:12,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:18:12,745 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-09-23 21:18:12,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:18:12,745 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-09-23 21:18:12,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-23 21:18:12,746 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:18:12,746 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-23 21:18:12,746 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:18:12,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:18:12,747 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2018-09-23 21:18:12,747 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:18:12,747 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:18:12,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:18:12,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:18:12,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:18:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:18:13,105 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-09-23 21:18:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:18:13,107 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:18:13,107 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 [2018-09-23 21:18:13,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:18:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:18:13,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:18:13,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:18:13,513 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:18:13,514 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-09-23 21:18:13,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-23 21:18:13,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-23 21:18:13,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-23 21:18:13,515 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2018-09-23 21:18:13,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:18:13,591 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-23 21:18:13,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-23 21:18:13,593 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2018-09-23 21:18:13,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:18:13,593 INFO L225 Difference]: With dead ends: 8 [2018-09-23 21:18:13,593 INFO L226 Difference]: Without dead ends: 6 [2018-09-23 21:18:13,595 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-23 21:18:13,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-09-23 21:18:13,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-09-23 21:18:13,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-23 21:18:13,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-23 21:18:13,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-09-23 21:18:13,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:18:13,599 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-09-23 21:18:13,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-23 21:18:13,599 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-23 21:18:13,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-23 21:18:13,600 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:18:13,600 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-09-23 21:18:13,600 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:18:13,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:18:13,601 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2018-09-23 21:18:13,601 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:18:13,601 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:18:13,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:18:13,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:18:13,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:18:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:18:13,867 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-09-23 21:18:13,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-23 21:18:13,869 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:18:13,869 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 [2018-09-23 21:18:13,888 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-23 21:18:13,939 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-23 21:18:13,939 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-23 21:18:13,942 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:18:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:18:14,161 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:18:14,162 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2018-09-23 21:18:14,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-23 21:18:14,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-23 21:18:14,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-23 21:18:14,163 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 7 states. [2018-09-23 21:18:14,440 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2018-09-23 21:18:14,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:18:14,506 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2018-09-23 21:18:14,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-23 21:18:14,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 5 [2018-09-23 21:18:14,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:18:14,509 INFO L225 Difference]: With dead ends: 7 [2018-09-23 21:18:14,509 INFO L226 Difference]: Without dead ends: 0 [2018-09-23 21:18:14,510 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-09-23 21:18:14,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-23 21:18:14,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-23 21:18:14,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-23 21:18:14,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-23 21:18:14,514 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-09-23 21:18:14,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:18:14,514 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-23 21:18:14,514 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-23 21:18:14,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-23 21:18:14,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-23 21:18:14,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-23 21:18:14,626 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 45) no Hoare annotation was computed. [2018-09-23 21:18:14,627 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 45) no Hoare annotation was computed. [2018-09-23 21:18:14,627 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 45) no Hoare annotation was computed. [2018-09-23 21:18:14,627 INFO L422 ceAbstractionStarter]: At program point L42(lines 24 42) the Hoare annotation is: (let ((.cse0 (+ (* 2 ULTIMATE.start_main_~mid~5) ULTIMATE.start_main_~lo~5))) (and (<= ULTIMATE.start_main_~lo~5 ULTIMATE.start_main_~hi~5) (<= ULTIMATE.start_main_~hi~5 .cse0) (<= .cse0 ULTIMATE.start_main_~hi~5))) [2018-09-23 21:18:14,627 INFO L422 ceAbstractionStarter]: At program point L36(lines 36 43) the Hoare annotation is: false [2018-09-23 21:18:14,628 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 44) no Hoare annotation was computed. [2018-09-23 21:18:14,637 INFO L202 PluginConnector]: Adding new model cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 09:18:14 BoogieIcfgContainer [2018-09-23 21:18:14,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-23 21:18:14,638 INFO L168 Benchmark]: Toolchain (without parser) took 2706.68 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: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-09-23 21:18:14,639 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-09-23 21:18:14,640 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.68 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. [2018-09-23 21:18:14,640 INFO L168 Benchmark]: Boogie Preprocessor took 23.42 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. [2018-09-23 21:18:14,641 INFO L168 Benchmark]: RCFGBuilder took 256.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-23 21:18:14,642 INFO L168 Benchmark]: TraceAbstraction took 2377.99 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-09-23 21:18:14,646 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 0.21 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 42.68 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 23.42 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 256.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2377.99 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 24]: Loop Invariant Derived loop invariant: (main_~lo~5 <= main_~hi~5 && main_~hi~5 <= 2 * main_~mid~5 + main_~lo~5) && 2 * main_~mid~5 + main_~lo~5 <= main_~hi~5 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 3 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 19 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 73 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 16 ConstructedInterpolants, 2 QuantifiedInterpolants, 541 SizeOfPredicates, 6 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/8 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/cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-23_21-18-14-659.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-23_21-18-14-659.csv Received shutdown request...