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 0.1.23-1cc990c [2018-09-30 20:06:56,055 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 20:06:56,057 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 20:06:56,070 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 20:06:56,070 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 20:06:56,071 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 20:06:56,072 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 20:06:56,075 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 20:06:56,076 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 20:06:56,078 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 20:06:56,079 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-30 20:06:56,126 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 20:06:56,158 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 20:06:56,158 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 20:06:56,159 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 20:06:56,159 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 20:06:56,164 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 20:06:56,164 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 20:06:56,164 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 20:06:56,164 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 20:06:56,165 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 20:06:56,165 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 20:06:56,165 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 20:06:56,165 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 20:06:56,166 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 20:06:56,166 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 20:06:56,166 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 20:06:56,167 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 20:06:56,168 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 20:06:56,168 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 20:06:56,168 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 20:06:56,168 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 20:06:56,169 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 20:06:56,169 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 20:06:56,169 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 20:06:56,169 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 20:06:56,170 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 20:06:56,170 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 20:06:56,170 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 20:06:56,170 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 20:06:56,170 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 20:06:56,171 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 20:06:56,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 20:06:56,233 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 20:06:56,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 20:06:56,241 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 20:06:56,241 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 20:06:56,242 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl [2018-09-30 20:06:56,243 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl' [2018-09-30 20:06:56,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 20:06:56,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 20:06:56,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 20:06:56,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 20:06:56,292 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 20:06:56,312 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 30.09 08:06:56" (1/1) ... [2018-09-30 20:06:56,324 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 30.09 08:06:56" (1/1) ... [2018-09-30 20:06:56,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 20:06:56,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 20:06:56,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 20:06:56,333 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 20:06:56,345 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 30.09 08:06:56" (1/1) ... [2018-09-30 20:06:56,345 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 30.09 08:06:56" (1/1) ... [2018-09-30 20:06:56,346 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 30.09 08:06:56" (1/1) ... [2018-09-30 20:06:56,346 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 30.09 08:06:56" (1/1) ... [2018-09-30 20:06:56,350 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 30.09 08:06:56" (1/1) ... [2018-09-30 20:06:56,352 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 30.09 08:06:56" (1/1) ... [2018-09-30 20:06:56,353 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 30.09 08:06:56" (1/1) ... [2018-09-30 20:06:56,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 20:06:56,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 20:06:56,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 20:06:56,356 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 20:06:56,357 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 30.09 08:06:56" (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 [2018-09-30 20:06:56,439 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-30 20:06:56,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 20:06:56,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 20:06:56,656 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 20:06:56,656 INFO L202 PluginConnector]: Adding new model cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 08:06:56 BoogieIcfgContainer [2018-09-30 20:06:56,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 20:06:56,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 20:06:56,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 20:06:56,662 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 20:06:56,663 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 30.09 08:06:56" (1/2) ... [2018-09-30 20:06:56,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440352d8 and model type cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 08:06:56, skipping insertion in model container [2018-09-30 20:06:56,664 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 30.09 08:06:56" (2/2) ... [2018-09-30 20:06:56,666 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl [2018-09-30 20:06:56,677 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 20:06:56,689 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 20:06:56,738 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 20:06:56,739 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 20:06:56,739 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 20:06:56,739 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 20:06:56,740 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 20:06:56,740 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 20:06:56,740 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 20:06:56,740 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 20:06:56,740 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 20:06:56,756 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-30 20:06:56,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 20:06:56,763 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:06:56,764 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-30 20:06:56,765 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 20:06:56,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 20:06:56,772 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-09-30 20:06:56,774 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:06:56,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:06:56,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:06:56,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:06:56,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:06:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:06:56,929 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 20:06:56,932 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:06:56,932 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 20:06:56,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 20:06:56,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 20:06:56,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 20:06:56,953 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-30 20:06:56,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:06:56,981 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-09-30 20:06:56,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:06:56,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-30 20:06:56,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:06:56,993 INFO L225 Difference]: With dead ends: 9 [2018-09-30 20:06:56,993 INFO L226 Difference]: Without dead ends: 5 [2018-09-30 20:06:56,997 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 20:06:57,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-09-30 20:06:57,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-09-30 20:06:57,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-09-30 20:06:57,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-09-30 20:06:57,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-09-30 20:06:57,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:06:57,036 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-09-30 20:06:57,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 20:06:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-09-30 20:06:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 20:06:57,036 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:06:57,036 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-30 20:06:57,037 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 20:06:57,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 20:06:57,037 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2018-09-30 20:06:57,038 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:06:57,038 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:06:57,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:06:57,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:06:57,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:06:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:06:57,320 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 20:06:57,320 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 20:06:57,320 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 20:06:57,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:06:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:06:57,366 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 20:06:57,670 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 20:06:57,702 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 20:06:57,702 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-09-30 20:06:57,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-30 20:06:57,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-30 20:06:57,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-30 20:06:57,704 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2018-09-30 20:06:57,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:06:57,768 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-30 20:06:57,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-30 20:06:57,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2018-09-30 20:06:57,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:06:57,770 INFO L225 Difference]: With dead ends: 8 [2018-09-30 20:06:57,770 INFO L226 Difference]: Without dead ends: 6 [2018-09-30 20:06:57,771 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-30 20:06:57,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-09-30 20:06:57,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-09-30 20:06:57,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-30 20:06:57,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-30 20:06:57,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-09-30 20:06:57,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:06:57,778 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-09-30 20:06:57,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-30 20:06:57,778 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-30 20:06:57,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 20:06:57,779 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:06:57,779 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-09-30 20:06:57,780 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 20:06:57,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 20:06:57,780 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2018-09-30 20:06:57,780 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:06:57,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:06:57,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:06:57,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:06:57,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:06:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:06:58,041 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-09-30 20:06:58,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-30 20:06:58,043 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 20:06:58,043 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 20:06:58,054 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-30 20:06:58,092 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-30 20:06:58,092 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 20:06:58,095 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 20:06:58,340 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 20:06:58,359 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 20:06:58,359 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2018-09-30 20:06:58,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-30 20:06:58,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-30 20:06:58,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-30 20:06:58,360 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 7 states. [2018-09-30 20:06:58,641 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2018-09-30 20:06:58,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:06:58,688 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2018-09-30 20:06:58,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-30 20:06:58,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 5 [2018-09-30 20:06:58,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:06:58,690 INFO L225 Difference]: With dead ends: 7 [2018-09-30 20:06:58,690 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 20:06:58,690 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 [2018-09-30 20:06:58,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 20:06:58,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 20:06:58,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 20:06:58,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 20:06:58,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-09-30 20:06:58,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:06:58,693 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 20:06:58,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-30 20:06:58,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 20:06:58,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 20:06:58,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 20:06:58,806 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 45) no Hoare annotation was computed. [2018-09-30 20:06:58,806 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 45) no Hoare annotation was computed. [2018-09-30 20:06:58,807 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 45) no Hoare annotation was computed. [2018-09-30 20:06:58,808 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))) [2018-09-30 20:06:58,808 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 44) no Hoare annotation was computed. [2018-09-30 20:06:58,808 INFO L422 ceAbstractionStarter]: At program point L36(lines 36 43) the Hoare annotation is: false [2018-09-30 20:06:58,819 INFO L202 PluginConnector]: Adding new model cggmp2005_variant.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 08:06:58 BoogieIcfgContainer [2018-09-30 20:06:58,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 20:06:58,821 INFO L168 Benchmark]: Toolchain (without parser) took 2533.01 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. [2018-09-30 20:06:58,822 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 20:06:58,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.31 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. [2018-09-30 20:06:58,824 INFO L168 Benchmark]: Boogie Preprocessor took 22.07 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. [2018-09-30 20:06:58,824 INFO L168 Benchmark]: RCFGBuilder took 301.44 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. [2018-09-30 20:06:58,826 INFO L168 Benchmark]: TraceAbstraction took 2162.16 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-09-30 20:06:58,830 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 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.31 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 22.07 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 301.44 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 2162.16 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: 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, 2.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 3 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s 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, 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, 1.1s 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-0-2018-09-30_20-06-58-843.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-0-2018-09-30_20-06-58-843.csv Received shutdown request...