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/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 21:16:17,855 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 21:16:17,857 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 21:16:17,869 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 21:16:17,870 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 21:16:17,871 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 21:16:17,872 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 21:16:17,874 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 21:16:17,875 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 21:16:17,876 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 21:16:17,877 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 21:16:17,877 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 21:16:17,878 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 21:16:17,879 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 21:16:17,881 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 21:16:17,881 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 21:16:17,882 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 21:16:17,884 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 21:16:17,886 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 21:16:17,888 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 21:16:17,889 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 21:16:17,890 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 21:16:17,893 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-26 21:16:17,902 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 [2018-09-26 21:16:17,917 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 21:16:17,917 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 21:16:17,918 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 21:16:17,918 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 21:16:17,919 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 21:16:17,919 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 21:16:17,920 INFO L133 SettingsManager]: * Use SBE=true [2018-09-26 21:16:17,920 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 21:16:17,920 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 21:16:17,920 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 21:16:17,920 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 21:16:17,921 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 21:16:17,921 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 21:16:17,921 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 21:16:17,921 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 21:16:17,921 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 21:16:17,922 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 21:16:17,922 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 21:16:17,922 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 21:16:17,922 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-26 21:16:17,923 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 21:16:17,923 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-26 21:16:17,923 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:16:17,923 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 21:16:17,923 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 21:16:17,924 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 21:16:17,924 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-26 21:16:17,924 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 21:16:17,924 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 21:16:17,924 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 21:16:17,969 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 21:16:17,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 21:16:17,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 21:16:17,997 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 21:16:17,998 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 21:16:17,999 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl [2018-09-26 21:16:18,000 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl' [2018-09-26 21:16:18,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 21:16:18,063 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 21:16:18,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 21:16:18,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 21:16:18,064 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 21:16:18,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:18" (1/1) ... [2018-09-26 21:16:18,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:18" (1/1) ... [2018-09-26 21:16:18,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 21:16:18,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 21:16:18,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 21:16:18,106 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 21:16:18,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:18" (1/1) ... [2018-09-26 21:16:18,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:18" (1/1) ... [2018-09-26 21:16:18,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:18" (1/1) ... [2018-09-26 21:16:18,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:18" (1/1) ... [2018-09-26 21:16:18,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:18" (1/1) ... [2018-09-26 21:16:18,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:18" (1/1) ... [2018-09-26 21:16:18,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:18" (1/1) ... [2018-09-26 21:16:18,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 21:16:18,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 21:16:18,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 21:16:18,128 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 21:16:18,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:18" (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 [2018-09-26 21:16:18,208 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-26 21:16:18,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 21:16:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 21:16:18,434 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 21:16:18,435 INFO L202 PluginConnector]: Adding new model ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:16:18 BoogieIcfgContainer [2018-09-26 21:16:18,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 21:16:18,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 21:16:18,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 21:16:18,440 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 21:16:18,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:18" (1/2) ... [2018-09-26 21:16:18,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9855c2 and model type ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:16:18, skipping insertion in model container [2018-09-26 21:16:18,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:16:18" (2/2) ... [2018-09-26 21:16:18,443 INFO L112 eAbstractionObserver]: Analyzing ICFG ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl [2018-09-26 21:16:18,453 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-26 21:16:18,462 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 21:16:18,513 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 21:16:18,514 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 21:16:18,515 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 21:16:18,515 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-26 21:16:18,515 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 21:16:18,515 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 21:16:18,515 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 21:16:18,516 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 21:16:18,516 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 21:16:18,531 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-09-26 21:16:18,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 21:16:18,547 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:16:18,548 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 21:16:18,549 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:16:18,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:16:18,555 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-09-26 21:16:18,557 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:16:18,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:16:18,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:16:18,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:16:18,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:16:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:16:18,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:16:18,714 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:16:18,714 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:16:18,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:16:18,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:16:18,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:16:18,734 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-09-26 21:16:18,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:16:18,795 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-09-26 21:16:18,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:16:18,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 21:16:18,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:16:18,808 INFO L225 Difference]: With dead ends: 11 [2018-09-26 21:16:18,809 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 21:16:18,812 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 [2018-09-26 21:16:18,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 21:16:18,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 21:16:18,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 21:16:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 21:16:18,856 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 21:16:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:16:18,859 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 21:16:18,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:16:18,860 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 21:16:18,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 21:16:18,860 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:16:18,861 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 21:16:18,861 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:16:18,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:16:18,864 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-09-26 21:16:18,864 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:16:18,864 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:16:18,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:16:18,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:16:18,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:16:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:16:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:16:19,016 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:16:19,016 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 [2018-09-26 21:16:19,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:16:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:16:19,061 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:16:19,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:16:19,187 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:16:19,187 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-09-26 21:16:19,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 21:16:19,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 21:16:19,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 21:16:19,189 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-09-26 21:16:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:16:19,292 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-09-26 21:16:19,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 21:16:19,293 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-09-26 21:16:19,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:16:19,294 INFO L225 Difference]: With dead ends: 11 [2018-09-26 21:16:19,294 INFO L226 Difference]: Without dead ends: 9 [2018-09-26 21:16:19,295 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-09-26 21:16:19,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-09-26 21:16:19,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-09-26 21:16:19,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-26 21:16:19,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-09-26 21:16:19,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-09-26 21:16:19,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:16:19,300 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-09-26 21:16:19,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 21:16:19,300 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-09-26 21:16:19,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 21:16:19,301 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:16:19,301 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-09-26 21:16:19,301 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:16:19,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:16:19,302 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-09-26 21:16:19,302 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:16:19,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:16:19,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:16:19,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:16:19,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:16:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:16:19,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:16:19,362 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:16:19,362 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:16:19,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:16:19,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:16:19,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:16:19,364 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2018-09-26 21:16:19,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:16:19,370 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-09-26 21:16:19,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:16:19,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-09-26 21:16:19,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:16:19,371 INFO L225 Difference]: With dead ends: 9 [2018-09-26 21:16:19,371 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 21:16:19,372 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:16:19,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 21:16:19,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 21:16:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 21:16:19,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 21:16:19,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-09-26 21:16:19,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:16:19,373 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 21:16:19,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:16:19,374 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 21:16:19,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 21:16:19,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 21:16:19,618 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-26 21:16:19,622 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 61) no Hoare annotation was computed. [2018-09-26 21:16:19,622 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 61) no Hoare annotation was computed. [2018-09-26 21:16:19,622 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 61) no Hoare annotation was computed. [2018-09-26 21:16:19,623 INFO L422 ceAbstractionStarter]: At program point L58(lines 32 58) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~b~5 0) (<= ULTIMATE.start_main_~a~5 0) (<= ULTIMATE.start_main_~j~5 1) (<= 0 ULTIMATE.start_main_~i~5)) (and (<= ULTIMATE.start_main_~b~5 1) (<= 2 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~a~5 1))) [2018-09-26 21:16:19,623 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 60) no Hoare annotation was computed. [2018-09-26 21:16:19,623 INFO L422 ceAbstractionStarter]: At program point L47(lines 47 59) the Hoare annotation is: false [2018-09-26 21:16:19,623 INFO L422 ceAbstractionStarter]: At program point L35(lines 35 48) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~b~5 0) (<= ULTIMATE.start_main_~a~5 0) (<= ULTIMATE.start_main_~j~5 1) (<= 0 ULTIMATE.start_main_~i~5)) (and (<= ULTIMATE.start_main_~b~5 1) (<= 2 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~a~5 1))) [2018-09-26 21:16:19,635 INFO L202 PluginConnector]: Adding new model ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:16:19 BoogieIcfgContainer [2018-09-26 21:16:19,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 21:16:19,636 INFO L168 Benchmark]: Toolchain (without parser) took 1576.01 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: 76.7 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. [2018-09-26 21:16:19,637 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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. [2018-09-26 21:16:19,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.38 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. [2018-09-26 21:16:19,639 INFO L168 Benchmark]: Boogie Preprocessor took 22.02 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. [2018-09-26 21:16:19,639 INFO L168 Benchmark]: RCFGBuilder took 307.49 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. [2018-09-26 21:16:19,640 INFO L168 Benchmark]: TraceAbstraction took 1199.23 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2018-09-26 21:16:19,644 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 0.22 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 41.38 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 22.02 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 307.49 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 1199.23 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: 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: 60]: 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: 47]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((main_~b~5 <= 0 && main_~a~5 <= 0) && main_~j~5 <= 1) && 0 <= main_~i~5) || ((main_~b~5 <= 1 && 2 <= main_~i~5) && main_~a~5 <= 1) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((main_~b~5 <= 0 && main_~a~5 <= 0) && main_~j~5 <= 1) && 0 <= main_~i~5) || ((main_~b~5 <= 1 && 2 <= main_~i~5) && main_~a~5 <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 11 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=2, 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 49 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 298 SizeOfPredicates, 1 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 6/10 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/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_21-16-19-661.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ddlm2013.i_3.bplTransformedIcfg_BEv2_8.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_21-16-19-661.csv Received shutdown request...