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/hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-00a8621 [2018-09-30 10:19:18,100 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 10:19:18,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 10:19:18,114 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 10:19:18,114 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 10:19:18,115 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 10:19:18,116 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 10:19:18,118 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 10:19:18,120 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 10:19:18,120 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 10:19:18,121 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-30 10:19:18,146 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 10:19:18,177 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 10:19:18,177 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 10:19:18,178 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 10:19:18,178 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 10:19:18,181 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 10:19:18,181 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 10:19:18,182 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 10:19:18,182 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 10:19:18,182 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 10:19:18,182 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 10:19:18,182 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 10:19:18,183 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 10:19:18,183 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 10:19:18,183 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 10:19:18,183 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 10:19:18,185 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 10:19:18,185 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 10:19:18,185 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 10:19:18,185 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 10:19:18,186 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 10:19:18,186 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 10:19:18,186 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 10:19:18,186 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 10:19:18,187 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 10:19:18,188 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 10:19:18,188 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 10:19:18,188 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 10:19:18,188 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 10:19:18,189 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 10:19:18,189 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 10:19:18,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 10:19:18,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 10:19:18,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 10:19:18,266 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 10:19:18,266 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 10:19:18,267 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl [2018-09-30 10:19:18,267 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl' [2018-09-30 10:19:18,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 10:19:18,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 10:19:18,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 10:19:18,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 10:19:18,323 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 10:19:18,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:18" (1/1) ... [2018-09-30 10:19:18,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:18" (1/1) ... [2018-09-30 10:19:18,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 10:19:18,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 10:19:18,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 10:19:18,364 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 10:19:18,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:18" (1/1) ... [2018-09-30 10:19:18,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:18" (1/1) ... [2018-09-30 10:19:18,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:18" (1/1) ... [2018-09-30 10:19:18,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:18" (1/1) ... [2018-09-30 10:19:18,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:18" (1/1) ... [2018-09-30 10:19:18,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:18" (1/1) ... [2018-09-30 10:19:18,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:18" (1/1) ... [2018-09-30 10:19:18,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 10:19:18,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 10:19:18,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 10:19:18,384 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 10:19:18,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:18" (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 [2018-09-30 10:19:18,454 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-30 10:19:18,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 10:19:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 10:19:18,702 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 10:19:18,703 INFO L202 PluginConnector]: Adding new model hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:19:18 BoogieIcfgContainer [2018-09-30 10:19:18,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 10:19:18,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 10:19:18,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 10:19:18,710 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 10:19:18,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:18" (1/2) ... [2018-09-30 10:19:18,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768c15e0 and model type hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 10:19:18, skipping insertion in model container [2018-09-30 10:19:18,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:19:18" (2/2) ... [2018-09-30 10:19:18,714 INFO L112 eAbstractionObserver]: Analyzing ICFG hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl [2018-09-30 10:19:18,725 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 10:19:18,738 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 10:19:18,796 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 10:19:18,797 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 10:19:18,797 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 10:19:18,797 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 10:19:18,797 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 10:19:18,797 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 10:19:18,798 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 10:19:18,798 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 10:19:18,798 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 10:19:18,816 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-30 10:19:18,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-30 10:19:18,823 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:18,824 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-30 10:19:18,825 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:18,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:18,832 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-09-30 10:19:18,834 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:18,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:18,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:18,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:18,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:19,225 WARN L178 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-09-30 10:19:19,228 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 10:19:19,230 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:19,231 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:19:19,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:19:19,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:19:19,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:19,253 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-30 10:19:19,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:19,285 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-09-30 10:19:19,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:19:19,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-09-30 10:19:19,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:19,297 INFO L225 Difference]: With dead ends: 9 [2018-09-30 10:19:19,297 INFO L226 Difference]: Without dead ends: 5 [2018-09-30 10:19:19,301 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:19,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-09-30 10:19:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-09-30 10:19:19,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-09-30 10:19:19,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-09-30 10:19:19,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-09-30 10:19:19,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:19,337 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-09-30 10:19:19,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:19:19,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-09-30 10:19:19,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 10:19:19,337 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:19,338 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-30 10:19:19,338 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:19,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:19,338 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2018-09-30 10:19:19,339 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:19,339 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:19,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:19,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:19,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:19,544 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 10:19:19,544 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:19:19,544 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 10:19:19,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:19,579 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:19:19,692 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 10:19:19,713 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:19:19,714 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2018-09-30 10:19:19,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-30 10:19:19,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-30 10:19:19,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-30 10:19:19,715 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 5 states. [2018-09-30 10:19:19,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:19,907 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-30 10:19:19,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-30 10:19:19,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-09-30 10:19:19,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:19,909 INFO L225 Difference]: With dead ends: 8 [2018-09-30 10:19:19,909 INFO L226 Difference]: Without dead ends: 6 [2018-09-30 10:19:19,910 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-30 10:19:19,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-09-30 10:19:19,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-09-30 10:19:19,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-09-30 10:19:19,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-09-30 10:19:19,918 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-09-30 10:19:19,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:19,919 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-09-30 10:19:19,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-30 10:19:19,919 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-09-30 10:19:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-30 10:19:19,921 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:19,921 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-09-30 10:19:19,921 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:19,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:19,922 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2018-09-30 10:19:19,922 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:19,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:19,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:19,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:19,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:20,206 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 10:19:20,207 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:19:20,207 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 10:19:20,224 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-30 10:19:20,237 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-30 10:19:20,238 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-30 10:19:20,241 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:19:20,460 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 10:19:20,484 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:19:20,484 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-09-30 10:19:20,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-30 10:19:20,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-30 10:19:20,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-30 10:19:20,485 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 7 states. [2018-09-30 10:19:20,651 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-09-30 10:19:20,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:20,808 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2018-09-30 10:19:20,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-30 10:19:20,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 5 [2018-09-30 10:19:20,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:20,809 INFO L225 Difference]: With dead ends: 7 [2018-09-30 10:19:20,810 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 10:19:20,810 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-09-30 10:19:20,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 10:19:20,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 10:19:20,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 10:19:20,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 10:19:20,811 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-09-30 10:19:20,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:20,812 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 10:19:20,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-30 10:19:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 10:19:20,812 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 10:19:20,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 10:19:20,932 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 48) no Hoare annotation was computed. [2018-09-30 10:19:20,932 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 49) no Hoare annotation was computed. [2018-09-30 10:19:20,933 INFO L422 ceAbstractionStarter]: At program point L46(lines 29 46) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~res~5 ULTIMATE.start_main_~cnt~5)) (.cse0 (+ ULTIMATE.start_main_~b~5 ULTIMATE.start_main_~a~5))) (and (<= .cse0 .cse1) (< ULTIMATE.start_main_~res~5 (+ ULTIMATE.start_main_~b~5 ULTIMATE.start_main_~a~5 1)) (<= .cse1 .cse0))) [2018-09-30 10:19:20,933 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 49) no Hoare annotation was computed. [2018-09-30 10:19:20,933 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 49) no Hoare annotation was computed. [2018-09-30 10:19:20,934 INFO L422 ceAbstractionStarter]: At program point L41(lines 41 47) the Hoare annotation is: false [2018-09-30 10:19:20,943 INFO L202 PluginConnector]: Adding new model hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 10:19:20 BoogieIcfgContainer [2018-09-30 10:19:20,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 10:19:20,944 INFO L168 Benchmark]: Toolchain (without parser) took 2625.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 119.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 7.1 GB. [2018-09-30 10:19:20,945 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 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 10:19:20,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.69 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 10:19:20,947 INFO L168 Benchmark]: Boogie Preprocessor took 19.76 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 10:19:20,947 INFO L168 Benchmark]: RCFGBuilder took 320.25 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 10:19:20,948 INFO L168 Benchmark]: TraceAbstraction took 2238.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. [2018-09-30 10:19:20,952 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 0.16 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 40.69 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 19.76 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 320.25 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 2238.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 29]: Loop Invariant Derived loop invariant: (main_~b~5 + main_~a~5 <= main_~res~5 + main_~cnt~5 && main_~res~5 < main_~b~5 + main_~a~5 + 1) && main_~res~5 + main_~cnt~5 <= main_~b~5 + main_~a~5 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 2.1s 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, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 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, 22 HoareAnnotationTreeSize, 2 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 68 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 591 SizeOfPredicates, 8 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/8 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/hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_10-19-20-965.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/hhk2008.c.i_3.bplTransformedIcfg_BEv2_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_10-19-20-965.csv Received shutdown request...