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/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-00a8621 [2018-09-30 10:19:48,152 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 10:19:48,154 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 10:19:48,166 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 10:19:48,166 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 10:19:48,168 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 10:19:48,169 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 10:19:48,171 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 10:19:48,172 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 10:19:48,173 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 10:19:48,174 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-30 10:19:48,199 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 10:19:48,214 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 10:19:48,214 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 10:19:48,215 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 10:19:48,215 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 10:19:48,216 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 10:19:48,216 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 10:19:48,216 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 10:19:48,217 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 10:19:48,217 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 10:19:48,217 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 10:19:48,217 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 10:19:48,217 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 10:19:48,217 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 10:19:48,218 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 10:19:48,218 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 10:19:48,218 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 10:19:48,218 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 10:19:48,218 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 10:19:48,219 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 10:19:48,219 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 10:19:48,219 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 10:19:48,219 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 10:19:48,219 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 10:19:48,220 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 10:19:48,220 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 10:19:48,220 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 10:19:48,220 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 10:19:48,220 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 10:19:48,220 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 10:19:48,221 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 10:19:48,284 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 10:19:48,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 10:19:48,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 10:19:48,311 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 10:19:48,312 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 10:19:48,313 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl [2018-09-30 10:19:48,313 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl' [2018-09-30 10:19:48,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 10:19:48,406 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 10:19:48,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 10:19:48,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 10:19:48,408 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 10:19:48,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:48" (1/1) ... [2018-09-30 10:19:48,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:48" (1/1) ... [2018-09-30 10:19:48,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 10:19:48,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 10:19:48,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 10:19:48,467 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 10:19:48,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:48" (1/1) ... [2018-09-30 10:19:48,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:48" (1/1) ... [2018-09-30 10:19:48,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:48" (1/1) ... [2018-09-30 10:19:48,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:48" (1/1) ... [2018-09-30 10:19:48,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:48" (1/1) ... [2018-09-30 10:19:48,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:48" (1/1) ... [2018-09-30 10:19:48,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:48" (1/1) ... [2018-09-30 10:19:48,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 10:19:48,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 10:19:48,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 10:19:48,528 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 10:19:48,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:48" (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 10:19:48,605 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-30 10:19:48,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 10:19:48,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 10:19:49,229 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 10:19:49,229 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:19:49 BoogieIcfgContainer [2018-09-30 10:19:49,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 10:19:49,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 10:19:49,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 10:19:49,234 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 10:19:49,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:48" (1/2) ... [2018-09-30 10:19:49,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1746c75e and model type pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 10:19:49, skipping insertion in model container [2018-09-30 10:19:49,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:19:49" (2/2) ... [2018-09-30 10:19:49,237 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl [2018-09-30 10:19:49,247 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 10:19:49,256 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 10:19:49,308 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 10:19:49,309 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 10:19:49,309 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 10:19:49,309 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 10:19:49,309 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 10:19:49,309 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 10:19:49,310 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 10:19:49,310 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 10:19:49,310 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 10:19:49,328 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-09-30 10:19:49,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 10:19:49,335 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:49,336 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:49,338 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:49,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:49,345 INFO L82 PathProgramCache]: Analyzing trace with hash -417618601, now seen corresponding path program 1 times [2018-09-30 10:19:49,347 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:49,348 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:49,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:49,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:49,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:49,599 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 10:19:49,602 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:49,602 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:19:49,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:19:49,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:19:49,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:49,620 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2018-09-30 10:19:49,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:49,686 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2018-09-30 10:19:49,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:19:49,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-09-30 10:19:49,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:49,699 INFO L225 Difference]: With dead ends: 37 [2018-09-30 10:19:49,700 INFO L226 Difference]: Without dead ends: 19 [2018-09-30 10:19:49,704 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 10:19:49,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-30 10:19:49,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-09-30 10:19:49,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-30 10:19:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2018-09-30 10:19:49,746 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 16 [2018-09-30 10:19:49,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:49,746 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2018-09-30 10:19:49,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:19:49,747 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2018-09-30 10:19:49,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 10:19:49,747 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:49,748 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:49,748 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:49,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:49,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1428735851, now seen corresponding path program 1 times [2018-09-30 10:19:49,749 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:49,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:49,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:49,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:49,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:49,829 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 10:19:49,830 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:49,830 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:19:49,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:19:49,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:19:49,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:49,834 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 3 states. [2018-09-30 10:19:49,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:49,874 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2018-09-30 10:19:49,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:19:49,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-09-30 10:19:49,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:49,876 INFO L225 Difference]: With dead ends: 37 [2018-09-30 10:19:49,876 INFO L226 Difference]: Without dead ends: 21 [2018-09-30 10:19:49,878 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 10:19:49,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-09-30 10:19:49,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-09-30 10:19:49,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-09-30 10:19:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2018-09-30 10:19:49,885 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 16 [2018-09-30 10:19:49,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:49,885 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2018-09-30 10:19:49,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:19:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2018-09-30 10:19:49,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 10:19:49,887 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:49,887 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:49,887 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:49,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:49,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1686901289, now seen corresponding path program 1 times [2018-09-30 10:19:49,888 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:49,888 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:49,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:49,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:49,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:50,036 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 10:19:50,037 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:50,037 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:19:50,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:19:50,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:19:50,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:50,039 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand 3 states. [2018-09-30 10:19:50,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:50,059 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions. [2018-09-30 10:19:50,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:19:50,061 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-09-30 10:19:50,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:50,062 INFO L225 Difference]: With dead ends: 39 [2018-09-30 10:19:50,062 INFO L226 Difference]: Without dead ends: 23 [2018-09-30 10:19:50,063 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 10:19:50,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-09-30 10:19:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-09-30 10:19:50,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-09-30 10:19:50,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2018-09-30 10:19:50,073 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 16 [2018-09-30 10:19:50,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:50,074 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2018-09-30 10:19:50,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:19:50,074 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2018-09-30 10:19:50,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 10:19:50,075 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:50,075 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:50,076 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:50,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:50,076 INFO L82 PathProgramCache]: Analyzing trace with hash -2079928299, now seen corresponding path program 1 times [2018-09-30 10:19:50,076 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:50,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:50,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:50,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:50,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:50,181 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 10:19:50,181 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:50,181 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:19:50,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:19:50,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:19:50,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:50,184 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand 3 states. [2018-09-30 10:19:50,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:50,221 INFO L93 Difference]: Finished difference Result 41 states and 54 transitions. [2018-09-30 10:19:50,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:19:50,221 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-09-30 10:19:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:50,222 INFO L225 Difference]: With dead ends: 41 [2018-09-30 10:19:50,222 INFO L226 Difference]: Without dead ends: 25 [2018-09-30 10:19:50,223 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 10:19:50,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-09-30 10:19:50,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-09-30 10:19:50,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-09-30 10:19:50,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2018-09-30 10:19:50,243 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 16 [2018-09-30 10:19:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:50,243 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2018-09-30 10:19:50,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:19:50,244 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2018-09-30 10:19:50,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 10:19:50,245 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:50,245 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:50,245 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:50,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:50,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1270581673, now seen corresponding path program 1 times [2018-09-30 10:19:50,246 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:50,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:50,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:50,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:50,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:50,358 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 10:19:50,358 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:50,358 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:19:50,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:19:50,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:19:50,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:50,360 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand 3 states. [2018-09-30 10:19:50,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:50,438 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2018-09-30 10:19:50,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:19:50,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-09-30 10:19:50,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:50,440 INFO L225 Difference]: With dead ends: 57 [2018-09-30 10:19:50,440 INFO L226 Difference]: Without dead ends: 41 [2018-09-30 10:19:50,441 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 10:19:50,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-09-30 10:19:50,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2018-09-30 10:19:50,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-09-30 10:19:50,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2018-09-30 10:19:50,451 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 16 [2018-09-30 10:19:50,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:50,451 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2018-09-30 10:19:50,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:19:50,451 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2018-09-30 10:19:50,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 10:19:50,452 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:50,452 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:50,452 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:50,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:50,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1213323371, now seen corresponding path program 1 times [2018-09-30 10:19:50,453 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:50,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:50,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:50,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:50,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:50,551 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 10:19:50,552 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:50,552 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-30 10:19:50,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 10:19:50,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 10:19:50,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-30 10:19:50,554 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand 4 states. [2018-09-30 10:19:50,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:50,696 INFO L93 Difference]: Finished difference Result 90 states and 120 transitions. [2018-09-30 10:19:50,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 10:19:50,697 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-09-30 10:19:50,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:50,698 INFO L225 Difference]: With dead ends: 90 [2018-09-30 10:19:50,699 INFO L226 Difference]: Without dead ends: 60 [2018-09-30 10:19:50,699 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-30 10:19:50,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-09-30 10:19:50,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 41. [2018-09-30 10:19:50,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-09-30 10:19:50,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2018-09-30 10:19:50,710 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 16 [2018-09-30 10:19:50,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:50,711 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2018-09-30 10:19:50,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 10:19:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2018-09-30 10:19:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-30 10:19:50,712 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:50,712 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:50,712 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:50,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:50,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1213382953, now seen corresponding path program 1 times [2018-09-30 10:19:50,713 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:50,713 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:50,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:50,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:50,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:50,879 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 10:19:50,880 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:50,880 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-30 10:19:50,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 10:19:50,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 10:19:50,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-30 10:19:50,881 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand 4 states. [2018-09-30 10:19:50,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:50,972 INFO L93 Difference]: Finished difference Result 64 states and 81 transitions. [2018-09-30 10:19:50,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 10:19:50,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-09-30 10:19:50,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:50,976 INFO L225 Difference]: With dead ends: 64 [2018-09-30 10:19:50,976 INFO L226 Difference]: Without dead ends: 62 [2018-09-30 10:19:50,977 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-30 10:19:50,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-09-30 10:19:51,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 43. [2018-09-30 10:19:51,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-09-30 10:19:51,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2018-09-30 10:19:51,007 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 16 [2018-09-30 10:19:51,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:51,007 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2018-09-30 10:19:51,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 10:19:51,007 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2018-09-30 10:19:51,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-30 10:19:51,008 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:51,009 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:51,009 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:51,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:51,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1468461941, now seen corresponding path program 1 times [2018-09-30 10:19:51,011 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:51,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:51,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:51,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:51,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:51,128 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:19:51,128 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:19:51,128 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 10:19:51,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:51,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:19:51,470 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-30 10:19:51,497 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:19:51,497 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-09-30 10:19:51,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-30 10:19:51,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-30 10:19:51,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-30 10:19:51,499 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 6 states. [2018-09-30 10:19:52,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:52,327 INFO L93 Difference]: Finished difference Result 157 states and 203 transitions. [2018-09-30 10:19:52,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-30 10:19:52,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-09-30 10:19:52,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:52,329 INFO L225 Difference]: With dead ends: 157 [2018-09-30 10:19:52,329 INFO L226 Difference]: Without dead ends: 123 [2018-09-30 10:19:52,330 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2018-09-30 10:19:52,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-09-30 10:19:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 113. [2018-09-30 10:19:52,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-09-30 10:19:52,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 142 transitions. [2018-09-30 10:19:52,357 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 142 transitions. Word has length 30 [2018-09-30 10:19:52,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:52,358 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 142 transitions. [2018-09-30 10:19:52,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-30 10:19:52,358 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 142 transitions. [2018-09-30 10:19:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-30 10:19:52,360 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:52,360 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:52,360 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:52,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:52,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1126846763, now seen corresponding path program 2 times [2018-09-30 10:19:52,361 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:52,361 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:52,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:52,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:52,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:52,458 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-30 10:19:52,458 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:52,460 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 10:19:52,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:19:52,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:19:52,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:52,461 INFO L87 Difference]: Start difference. First operand 113 states and 142 transitions. Second operand 3 states. [2018-09-30 10:19:52,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:52,487 INFO L93 Difference]: Finished difference Result 139 states and 173 transitions. [2018-09-30 10:19:52,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:19:52,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-09-30 10:19:52,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:52,488 INFO L225 Difference]: With dead ends: 139 [2018-09-30 10:19:52,488 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 10:19:52,489 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 [2018-09-30 10:19:52,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 10:19:52,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 10:19:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 10:19:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 10:19:52,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-09-30 10:19:52,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:52,491 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 10:19:52,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:19:52,491 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 10:19:52,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 10:19:52,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 10:19:52,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-30 10:19:52,861 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 27 [2018-09-30 10:19:53,341 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2018-09-30 10:19:53,383 INFO L422 ceAbstractionStarter]: At program point L287(lines 280 288) the Hoare annotation is: (or (and (not (= 0 ULTIMATE.start_assert_~arg)) (<= 1 ~mode4) (<= ~r1 1) (not (= ~p3_old ~nomsg))) (and (<= ~r1 0) (<= (+ ~mode3 257) 0) (<= (+ ~mode4 256) 0))) [2018-09-30 10:19:53,383 INFO L422 ceAbstractionStarter]: At program point L316(lines 316 325) the Hoare annotation is: (let ((.cse0 (not (= 0 ULTIMATE.start_assert_~arg))) (.cse1 (not (= ~p3_old ~nomsg))) (.cse2 (<= ~r1 0)) (.cse3 (not (= ~p3_new ~nomsg)))) (or (and .cse0 (<= 1 ~mode4) (<= ~r1 1) .cse1) (and (<= 1 ULTIMATE.start_check_~tmp~101) (<= 1 ULTIMATE.start_main_~c1~108) .cse2 .cse0 .cse3 (not (= 0 |ULTIMATE.start_assert_#in~arg|)) .cse1) (and .cse2 .cse3 (<= (+ ~mode4 256) 0)))) [2018-09-30 10:19:53,383 INFO L422 ceAbstractionStarter]: At program point L250(lines 250 262) the Hoare annotation is: (let ((.cse0 (<= ~r1 0))) (or (and .cse0 (<= (+ ~mode3 257) 0) (<= (+ ~mode1 256) 0) (<= (+ ~mode4 256) 0) (<= 512 ~mode2)) (and (<= 1 ULTIMATE.start_check_~tmp~101) (<= 1 ULTIMATE.start_main_~c1~108) .cse0 (not (= 0 ULTIMATE.start_assert_~arg)) (<= 1 ~mode4) (not (= 0 |ULTIMATE.start_assert_#in~arg|)) (not (= ~p3_old ~nomsg))))) [2018-09-30 10:19:53,384 INFO L422 ceAbstractionStarter]: At program point L345(lines 345 353) the Hoare annotation is: (and (<= ~r1 0) (<= 1 ~mode4) (not (= ~p3_old ~nomsg))) [2018-09-30 10:19:53,384 INFO L422 ceAbstractionStarter]: At program point L267(lines 261 268) the Hoare annotation is: (or (and (not (= 0 ULTIMATE.start_assert_~arg)) (<= 1 ~mode4) (<= ~r1 1) (not (= ~p3_old ~nomsg))) (and (<= ~r1 0) (<= (+ ~mode3 257) 0) (<= (+ ~mode4 256) 0) (<= 512 ~mode2))) [2018-09-30 10:19:53,384 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 390) no Hoare annotation was computed. [2018-09-30 10:19:53,385 INFO L422 ceAbstractionStarter]: At program point L292(lines 292 302) the Hoare annotation is: (or (and (not (= 0 ULTIMATE.start_assert_~arg)) (<= 1 ~mode4) (<= ~r1 1) (not (= ~p3_old ~nomsg))) (and (<= ~r1 0) (<= (+ ~mode3 257) 0) (<= (+ ~mode4 256) 0))) [2018-09-30 10:19:53,385 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 61 391) no Hoare annotation was computed. [2018-09-30 10:19:53,385 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 61 391) no Hoare annotation was computed. [2018-09-30 10:19:53,385 INFO L422 ceAbstractionStarter]: At program point L272(lines 272 281) the Hoare annotation is: (or (and (not (= 0 ULTIMATE.start_assert_~arg)) (<= 1 ~mode4) (<= ~r1 1) (not (= ~p3_old ~nomsg))) (and (<= ~r1 0) (<= (+ ~mode3 257) 0) (<= (+ ~mode4 256) 0) (<= 512 ~mode2))) [2018-09-30 10:19:53,385 INFO L422 ceAbstractionStarter]: At program point L363(lines 363 370) the Hoare annotation is: (and (<= 1 ULTIMATE.start_check_~tmp~101) (<= 1 ULTIMATE.start_main_~c1~108) (<= ~r1 0) (<= 1 ~mode4) (not (= ~p3_old ~nomsg))) [2018-09-30 10:19:53,385 INFO L422 ceAbstractionStarter]: At program point L388(lines 388 389) the Hoare annotation is: false [2018-09-30 10:19:53,385 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 61 391) no Hoare annotation was computed. [2018-09-30 10:19:53,385 INFO L422 ceAbstractionStarter]: At program point L331(lines 324 332) the Hoare annotation is: (and (<= ~r1 0) (<= 1 ~mode4) (not (= ~p3_new ~nomsg))) [2018-09-30 10:19:53,386 INFO L422 ceAbstractionStarter]: At program point L356(lines 352 357) the Hoare annotation is: (and (<= 1 ULTIMATE.start_check_~tmp~101) (<= ~r1 0) (<= 1 ~mode4) (not (= ~p3_old ~nomsg))) [2018-09-30 10:19:53,386 INFO L422 ceAbstractionStarter]: At program point L385(lines 244 385) the Hoare annotation is: (let ((.cse0 (<= ~r1 0))) (or (and .cse0 (<= (+ ~mode3 257) 0) (<= (+ ~mode1 256) 0) (<= (+ ~mode4 256) 0) (<= 512 ~mode2)) (and (<= 1 ULTIMATE.start_check_~tmp~101) (<= 1 ULTIMATE.start_main_~c1~108) .cse0 (not (= 0 ULTIMATE.start_assert_~arg)) (<= 1 ~mode4) (not (= 0 |ULTIMATE.start_assert_#in~arg|)) (not (= ~p3_old ~nomsg))))) [2018-09-30 10:19:53,386 INFO L422 ceAbstractionStarter]: At program point L377(lines 377 386) the Hoare annotation is: (and (<= 1 ULTIMATE.start_check_~tmp~101) (<= 1 ULTIMATE.start_main_~c1~108) (<= ~r1 0) (not (= 0 ULTIMATE.start_assert_~arg)) (<= 1 ~mode4) (not (= 0 |ULTIMATE.start_assert_#in~arg|)) (not (= ~p3_old ~nomsg))) [2018-09-30 10:19:53,386 INFO L422 ceAbstractionStarter]: At program point L311(lines 301 312) the Hoare annotation is: (let ((.cse0 (not (= 0 ULTIMATE.start_assert_~arg))) (.cse1 (not (= ~p3_old ~nomsg))) (.cse2 (<= ~r1 0)) (.cse3 (not (= ~p3_new ~nomsg)))) (or (and .cse0 (<= 1 ~mode4) (<= ~r1 1) .cse1) (and (<= 1 ULTIMATE.start_check_~tmp~101) (<= 1 ULTIMATE.start_main_~c1~108) .cse2 .cse0 .cse3 (not (= 0 |ULTIMATE.start_assert_#in~arg|)) .cse1) (and .cse2 .cse3 (<= (+ ~mode4 256) 0)))) [2018-09-30 10:19:53,386 INFO L422 ceAbstractionStarter]: At program point L373(lines 369 374) the Hoare annotation is: (and (<= 1 ULTIMATE.start_check_~tmp~101) (<= 1 ULTIMATE.start_main_~c1~108) (<= ~r1 0) (<= 1 ~mode4) (not (= 0 |ULTIMATE.start_assert_#in~arg|)) (not (= ~p3_old ~nomsg))) [2018-09-30 10:19:53,404 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 10:19:53 BoogieIcfgContainer [2018-09-30 10:19:53,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 10:19:53,405 INFO L168 Benchmark]: Toolchain (without parser) took 5001.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 267.0 MB). Peak memory consumption was 267.0 MB. Max. memory is 7.1 GB. [2018-09-30 10:19:53,406 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. [2018-09-30 10:19:53,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.24 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 10:19:53,408 INFO L168 Benchmark]: Boogie Preprocessor took 58.24 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 10:19:53,408 INFO L168 Benchmark]: RCFGBuilder took 701.94 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-30 10:19:53,409 INFO L168 Benchmark]: TraceAbstraction took 4173.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 224.7 MB). Peak memory consumption was 224.7 MB. Max. memory is 7.1 GB. [2018-09-30 10:19:53,414 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 59.24 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 58.24 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 701.94 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4173.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 224.7 MB). Peak memory consumption was 224.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 390]: 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: 352]: Loop Invariant Derived loop invariant: ((1 <= check_~tmp~101 && ~r1 <= 0) && 1 <= ~mode4) && !(~p3_old == ~nomsg) - InvariantResult [Line: 388]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: ((((~r1 <= 0 && ~mode3 + 257 <= 0) && ~mode1 + 256 <= 0) && ~mode4 + 256 <= 0) && 512 <= ~mode2) || ((((((1 <= check_~tmp~101 && 1 <= main_~c1~108) && ~r1 <= 0) && !(0 == assert_~arg)) && 1 <= ~mode4) && !(0 == assert_#in~arg)) && !(~p3_old == ~nomsg)) - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: (~r1 <= 0 && 1 <= ~mode4) && !(~p3_old == ~nomsg) - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: (((((1 <= check_~tmp~101 && 1 <= main_~c1~108) && ~r1 <= 0) && !(0 == assert_~arg)) && 1 <= ~mode4) && !(0 == assert_#in~arg)) && !(~p3_old == ~nomsg) - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: (((!(0 == assert_~arg) && 1 <= ~mode4) && ~r1 <= 1) && !(~p3_old == ~nomsg)) || (((~r1 <= 0 && ~mode3 + 257 <= 0) && ~mode4 + 256 <= 0) && 512 <= ~mode2) - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: ((((!(0 == assert_~arg) && 1 <= ~mode4) && ~r1 <= 1) && !(~p3_old == ~nomsg)) || ((((((1 <= check_~tmp~101 && 1 <= main_~c1~108) && ~r1 <= 0) && !(0 == assert_~arg)) && !(~p3_new == ~nomsg)) && !(0 == assert_#in~arg)) && !(~p3_old == ~nomsg))) || ((~r1 <= 0 && !(~p3_new == ~nomsg)) && ~mode4 + 256 <= 0) - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: ((((~r1 <= 0 && ~mode3 + 257 <= 0) && ~mode1 + 256 <= 0) && ~mode4 + 256 <= 0) && 512 <= ~mode2) || ((((((1 <= check_~tmp~101 && 1 <= main_~c1~108) && ~r1 <= 0) && !(0 == assert_~arg)) && 1 <= ~mode4) && !(0 == assert_#in~arg)) && !(~p3_old == ~nomsg)) - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: (~r1 <= 0 && 1 <= ~mode4) && !(~p3_new == ~nomsg) - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: (((1 <= check_~tmp~101 && 1 <= main_~c1~108) && ~r1 <= 0) && 1 <= ~mode4) && !(~p3_old == ~nomsg) - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: ((((1 <= check_~tmp~101 && 1 <= main_~c1~108) && ~r1 <= 0) && 1 <= ~mode4) && !(0 == assert_#in~arg)) && !(~p3_old == ~nomsg) - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: (((!(0 == assert_~arg) && 1 <= ~mode4) && ~r1 <= 1) && !(~p3_old == ~nomsg)) || ((~r1 <= 0 && ~mode3 + 257 <= 0) && ~mode4 + 256 <= 0) - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: (((!(0 == assert_~arg) && 1 <= ~mode4) && ~r1 <= 1) && !(~p3_old == ~nomsg)) || (((~r1 <= 0 && ~mode3 + 257 <= 0) && ~mode4 + 256 <= 0) && 512 <= ~mode2) - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((!(0 == assert_~arg) && 1 <= ~mode4) && ~r1 <= 1) && !(~p3_old == ~nomsg)) || ((((((1 <= check_~tmp~101 && 1 <= main_~c1~108) && ~r1 <= 0) && !(0 == assert_~arg)) && !(~p3_new == ~nomsg)) && !(0 == assert_#in~arg)) && !(~p3_old == ~nomsg))) || ((~r1 <= 0 && !(~p3_new == ~nomsg)) && ~mode4 + 256 <= 0) - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: (((!(0 == assert_~arg) && 1 <= ~mode4) && ~r1 <= 1) && !(~p3_old == ~nomsg)) || ((~r1 <= 0 && ~mode3 + 257 <= 0) && ~mode4 + 256 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. SAFE Result, 4.0s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 233 SDtfs, 149 SDslu, 276 SDs, 0 SdLazy, 147 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=8, 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 50 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 47 NumberOfFragments, 432 HoareAnnotationTreeSize, 15 FomulaSimplifications, 409 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 150 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 216 NumberOfCodeBlocks, 216 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 10624 SizeOfPredicates, 1 NumberOfNonLiveVariables, 284 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 60/70 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/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_10-19-53-432.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_23.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_10-19-53-432.csv Received shutdown request...