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.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-00a8621 [2018-09-30 10:19:41,280 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 10:19:41,282 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 10:19:41,294 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 10:19:41,294 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 10:19:41,295 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 10:19:41,296 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 10:19:41,298 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 10:19:41,300 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 10:19:41,300 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 10:19:41,301 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-30 10:19:41,330 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 10:19:41,351 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 10:19:41,351 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 10:19:41,352 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 10:19:41,352 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 10:19:41,354 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 10:19:41,354 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 10:19:41,355 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 10:19:41,355 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 10:19:41,356 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 10:19:41,356 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 10:19:41,356 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 10:19:41,356 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 10:19:41,357 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 10:19:41,357 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 10:19:41,357 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 10:19:41,357 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 10:19:41,358 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 10:19:41,358 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 10:19:41,358 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 10:19:41,358 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 10:19:41,358 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 10:19:41,359 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 10:19:41,359 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 10:19:41,359 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 10:19:41,359 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 10:19:41,359 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 10:19:41,361 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 10:19:41,361 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 10:19:41,361 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 10:19:41,362 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 10:19:41,404 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 10:19:41,419 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 10:19:41,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 10:19:41,427 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 10:19:41,427 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 10:19:41,428 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl [2018-09-30 10:19:41,429 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl' [2018-09-30 10:19:41,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 10:19:41,528 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 10:19:41,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 10:19:41,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 10:19:41,530 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 10:19:41,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:41" (1/1) ... [2018-09-30 10:19:41,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:41" (1/1) ... [2018-09-30 10:19:41,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 10:19:41,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 10:19:41,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 10:19:41,578 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 10:19:41,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:41" (1/1) ... [2018-09-30 10:19:41,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:41" (1/1) ... [2018-09-30 10:19:41,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:41" (1/1) ... [2018-09-30 10:19:41,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:41" (1/1) ... [2018-09-30 10:19:41,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:41" (1/1) ... [2018-09-30 10:19:41,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:41" (1/1) ... [2018-09-30 10:19:41,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:41" (1/1) ... [2018-09-30 10:19:41,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 10:19:41,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 10:19:41,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 10:19:41,637 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 10:19:41,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:41" (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 10:19:41,721 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-30 10:19:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 10:19:41,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 10:19:42,281 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 10:19:42,282 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:19:42 BoogieIcfgContainer [2018-09-30 10:19:42,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 10:19:42,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 10:19:42,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 10:19:42,286 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 10:19:42,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:19:41" (1/2) ... [2018-09-30 10:19:42,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147e2cad and model type pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 10:19:42, skipping insertion in model container [2018-09-30 10:19:42,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:19:42" (2/2) ... [2018-09-30 10:19:42,290 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl [2018-09-30 10:19:42,300 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 10:19:42,309 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 10:19:42,367 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 10:19:42,368 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 10:19:42,369 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 10:19:42,369 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 10:19:42,369 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 10:19:42,369 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 10:19:42,370 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 10:19:42,370 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 10:19:42,370 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 10:19:42,390 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-09-30 10:19:42,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 10:19:42,408 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:42,409 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:42,410 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:42,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:42,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1823027093, now seen corresponding path program 1 times [2018-09-30 10:19:42,418 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:42,419 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:42,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:42,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:42,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:42,660 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 10:19:42,663 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:42,664 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:19:42,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:19:42,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:19:42,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:42,686 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-09-30 10:19:42,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:42,737 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2018-09-30 10:19:42,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:19:42,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-30 10:19:42,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:42,756 INFO L225 Difference]: With dead ends: 45 [2018-09-30 10:19:42,756 INFO L226 Difference]: Without dead ends: 29 [2018-09-30 10:19:42,763 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 10:19:42,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-09-30 10:19:42,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-09-30 10:19:42,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-09-30 10:19:42,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2018-09-30 10:19:42,818 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2018-09-30 10:19:42,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:42,819 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2018-09-30 10:19:42,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:19:42,819 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2018-09-30 10:19:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 10:19:42,820 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:42,820 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:42,820 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:42,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:42,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1013680467, now seen corresponding path program 1 times [2018-09-30 10:19:42,821 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:42,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:42,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:42,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:42,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:42,998 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 10:19:42,998 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:42,998 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-30 10:19:43,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 10:19:43,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 10:19:43,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-30 10:19:43,001 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2018-09-30 10:19:43,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:43,158 INFO L93 Difference]: Finished difference Result 83 states and 113 transitions. [2018-09-30 10:19:43,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 10:19:43,159 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-09-30 10:19:43,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:43,160 INFO L225 Difference]: With dead ends: 83 [2018-09-30 10:19:43,160 INFO L226 Difference]: Without dead ends: 57 [2018-09-30 10:19:43,162 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 10:19:43,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-30 10:19:43,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 31. [2018-09-30 10:19:43,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-09-30 10:19:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2018-09-30 10:19:43,173 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 14 [2018-09-30 10:19:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:43,173 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2018-09-30 10:19:43,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 10:19:43,174 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2018-09-30 10:19:43,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 10:19:43,174 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:43,175 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:43,175 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:43,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:43,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1013740049, now seen corresponding path program 1 times [2018-09-30 10:19:43,176 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:43,176 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:43,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:43,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:43,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:43,266 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 10:19:43,266 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:43,267 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-30 10:19:43,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 10:19:43,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 10:19:43,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-30 10:19:43,268 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand 4 states. [2018-09-30 10:19:43,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:43,414 INFO L93 Difference]: Finished difference Result 75 states and 99 transitions. [2018-09-30 10:19:43,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 10:19:43,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-09-30 10:19:43,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:43,419 INFO L225 Difference]: With dead ends: 75 [2018-09-30 10:19:43,419 INFO L226 Difference]: Without dead ends: 73 [2018-09-30 10:19:43,420 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 10:19:43,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-09-30 10:19:43,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 35. [2018-09-30 10:19:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-09-30 10:19:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2018-09-30 10:19:43,435 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 14 [2018-09-30 10:19:43,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:43,435 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2018-09-30 10:19:43,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 10:19:43,436 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2018-09-30 10:19:43,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 10:19:43,436 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:43,437 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:43,437 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:43,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:43,438 INFO L82 PathProgramCache]: Analyzing trace with hash 956422165, now seen corresponding path program 1 times [2018-09-30 10:19:43,438 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:43,438 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:43,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:43,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:43,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:43,522 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 10:19:43,523 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:43,523 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:19:43,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:19:43,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:19:43,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:43,525 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand 3 states. [2018-09-30 10:19:43,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:43,572 INFO L93 Difference]: Finished difference Result 93 states and 120 transitions. [2018-09-30 10:19:43,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:19:43,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-30 10:19:43,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:43,574 INFO L225 Difference]: With dead ends: 93 [2018-09-30 10:19:43,574 INFO L226 Difference]: Without dead ends: 59 [2018-09-30 10:19:43,575 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 10:19:43,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-09-30 10:19:43,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-09-30 10:19:43,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-30 10:19:43,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2018-09-30 10:19:43,607 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 14 [2018-09-30 10:19:43,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:43,607 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2018-09-30 10:19:43,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:19:43,608 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2018-09-30 10:19:43,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-30 10:19:43,611 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:43,611 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:43,611 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:43,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:43,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1214587603, now seen corresponding path program 1 times [2018-09-30 10:19:43,612 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:43,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:43,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:43,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:43,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:43,702 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 10:19:43,703 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:43,703 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:19:43,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:19:43,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:19:43,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:43,704 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand 3 states. [2018-09-30 10:19:43,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:43,761 INFO L93 Difference]: Finished difference Result 95 states and 121 transitions. [2018-09-30 10:19:43,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:19:43,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-30 10:19:43,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:43,763 INFO L225 Difference]: With dead ends: 95 [2018-09-30 10:19:43,763 INFO L226 Difference]: Without dead ends: 61 [2018-09-30 10:19:43,764 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 10:19:43,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-09-30 10:19:43,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-09-30 10:19:43,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-30 10:19:43,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2018-09-30 10:19:43,782 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 14 [2018-09-30 10:19:43,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:43,782 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2018-09-30 10:19:43,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:19:43,782 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2018-09-30 10:19:43,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-30 10:19:43,784 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:43,784 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:43,784 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:43,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:43,785 INFO L82 PathProgramCache]: Analyzing trace with hash -277256459, now seen corresponding path program 1 times [2018-09-30 10:19:43,785 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:43,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:43,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:43,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:43,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:43,888 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:19:43,889 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:19:43,889 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 10:19:43,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:19:43,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:19:43,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 10:19:43,892 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand 3 states. [2018-09-30 10:19:43,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:43,975 INFO L93 Difference]: Finished difference Result 121 states and 152 transitions. [2018-09-30 10:19:43,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:19:43,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-09-30 10:19:43,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:43,980 INFO L225 Difference]: With dead ends: 121 [2018-09-30 10:19:43,980 INFO L226 Difference]: Without dead ends: 63 [2018-09-30 10:19:43,981 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 10:19:43,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-30 10:19:43,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-30 10:19:43,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-30 10:19:43,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2018-09-30 10:19:43,999 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 26 [2018-09-30 10:19:43,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:43,999 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2018-09-30 10:19:43,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:19:44,000 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2018-09-30 10:19:44,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-30 10:19:44,001 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:19:44,001 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 10:19:44,001 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:19:44,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 10:19:44,002 INFO L82 PathProgramCache]: Analyzing trace with hash 115770551, now seen corresponding path program 1 times [2018-09-30 10:19:44,002 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:19:44,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:19:44,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:44,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:44,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:19:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:19:44,193 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:19:44,193 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 10:19:44,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:19:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:19:44,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:19:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-30 10:19:44,419 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:19:44,419 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-09-30 10:19:44,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-30 10:19:44,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-30 10:19:44,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-30 10:19:44,421 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand 7 states. [2018-09-30 10:19:44,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:19:44,682 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2018-09-30 10:19:44,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-30 10:19:44,685 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-09-30 10:19:44,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:19:44,685 INFO L225 Difference]: With dead ends: 77 [2018-09-30 10:19:44,685 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 10:19:44,686 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2018-09-30 10:19:44,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 10:19:44,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 10:19:44,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 10:19:44,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 10:19:44,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-09-30 10:19:44,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:19:44,687 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 10:19:44,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-30 10:19:44,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 10:19:44,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 10:19:44,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 10:19:45,062 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-09-30 10:19:45,342 WARN L178 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2018-09-30 10:19:45,554 INFO L422 ceAbstractionStarter]: At program point L225(lines 225 235) the Hoare annotation is: (let ((.cse0 (= 0 (+ ~nomsg 1)))) (or (and (<= ~r1 0) .cse0 (<= 0 ~p1_new) (= ~mode3 0)) (and (not (= 0 ULTIMATE.start_assert_~arg)) (<= ~mode2 1) (<= ~r1 1) .cse0 (not (= (+ ~p1_old 1) 0))))) [2018-09-30 10:19:45,555 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 47 318) no Hoare annotation was computed. [2018-09-30 10:19:45,555 INFO L422 ceAbstractionStarter]: At program point L283(lines 279 284) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode2 1) (<= 1 ULTIMATE.start_check_~tmp~76) (= 0 (+ ~nomsg 1)) (not (= (+ ~p1_old 1) 0))) [2018-09-30 10:19:45,555 INFO L422 ceAbstractionStarter]: At program point L312(lines 193 312) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse1 (= 0 (+ ~nomsg 1)))) (or (and .cse0 (not (= 0 ULTIMATE.start_assert_~arg)) (<= ~mode2 1) .cse1 (not (= (+ ~p1_old 1) 0))) (and .cse0 (<= 512 ~mode1) .cse1 (= ~mode3 0)))) [2018-09-30 10:19:45,556 INFO L422 ceAbstractionStarter]: At program point L240(lines 234 241) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode2 1) (= 0 (+ ~nomsg 1)) (<= 0 ~p1_new) (= ~mode3 0)) [2018-09-30 10:19:45,556 INFO L422 ceAbstractionStarter]: At program point L304(lines 304 313) the Hoare annotation is: (and (<= ~r1 0) (not (= 0 ULTIMATE.start_assert_~arg)) (<= ~mode2 1) (not (= 0 |ULTIMATE.start_assert_#in~arg|)) (= 0 (+ ~nomsg 1)) (not (= (+ ~p1_old 1) 0))) [2018-09-30 10:19:45,556 INFO L422 ceAbstractionStarter]: At program point L300(lines 296 301) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode2 1) (= 0 (+ ~nomsg 1)) (not (= (+ ~p1_old 1) 0)) (not (= 0 |ULTIMATE.start_assert_#in~arg|))) [2018-09-30 10:19:45,556 INFO L422 ceAbstractionStarter]: At program point L199(lines 199 212) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse1 (= 0 (+ ~nomsg 1)))) (or (and .cse0 (not (= 0 ULTIMATE.start_assert_~arg)) (<= ~mode2 1) .cse1 (not (= (+ ~p1_old 1) 0))) (and .cse0 (<= 512 ~mode1) .cse1 (= ~mode3 0)))) [2018-09-30 10:19:45,557 INFO L422 ceAbstractionStarter]: At program point L290(lines 290 297) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode2 1) (<= 1 ULTIMATE.start_check_~tmp~76) (<= 1 ULTIMATE.start_main_~c1~83) (= 0 (+ ~nomsg 1)) (not (= (+ ~p1_old 1) 0))) [2018-09-30 10:19:45,557 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 47 318) no Hoare annotation was computed. [2018-09-30 10:19:45,557 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 47 318) no Hoare annotation was computed. [2018-09-30 10:19:45,557 INFO L422 ceAbstractionStarter]: At program point L220(lines 211 221) the Hoare annotation is: (let ((.cse0 (= 0 (+ ~nomsg 1)))) (or (and (<= ~r1 0) .cse0 (<= 0 ~p1_new) (= ~mode3 0)) (and (not (= 0 ULTIMATE.start_assert_~arg)) (<= ~mode2 1) (<= ~r1 1) .cse0 (not (= (+ ~p1_old 1) 0))))) [2018-09-30 10:19:45,558 INFO L422 ceAbstractionStarter]: At program point L315(lines 315 316) the Hoare annotation is: false [2018-09-30 10:19:45,559 INFO L422 ceAbstractionStarter]: At program point L245(lines 245 255) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode2 1) (= 0 (+ ~nomsg 1)) (<= 0 ~p1_new) (= ~mode3 0)) [2018-09-30 10:19:45,559 INFO L422 ceAbstractionStarter]: At program point L272(lines 272 280) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode2 1) (= 0 (+ ~nomsg 1)) (not (= (+ ~p1_old 1) 0))) [2018-09-30 10:19:45,559 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 317) no Hoare annotation was computed. [2018-09-30 10:19:45,559 INFO L422 ceAbstractionStarter]: At program point L260(lines 254 261) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode2 1) (= 0 (+ ~nomsg 1)) (<= 0 ~p1_new)) [2018-09-30 10:19:45,575 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 10:19:45 BoogieIcfgContainer [2018-09-30 10:19:45,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 10:19:45,577 INFO L168 Benchmark]: Toolchain (without parser) took 4051.58 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: 203.5 MB). Peak memory consumption was 203.5 MB. Max. memory is 7.1 GB. [2018-09-30 10:19:45,578 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 10:19:45,579 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.30 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 10:19:45,579 INFO L168 Benchmark]: Boogie Preprocessor took 55.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 10:19:45,580 INFO L168 Benchmark]: RCFGBuilder took 645.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-30 10:19:45,581 INFO L168 Benchmark]: TraceAbstraction took 3292.78 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: 171.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 7.1 GB. [2018-09-30 10:19:45,585 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 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.30 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 645.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3292.78 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: 171.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 317]: 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: 234]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && ~mode2 <= 1) && 0 == ~nomsg + 1) && 0 <= ~p1_new) && ~mode3 == 0 - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: ((~r1 <= 0 && ~mode2 <= 1) && 0 == ~nomsg + 1) && !(~p1_old + 1 == 0) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: ((((~r1 <= 0 && !(0 == assert_~arg)) && ~mode2 <= 1) && 0 == ~nomsg + 1) && !(~p1_old + 1 == 0)) || (((~r1 <= 0 && 512 <= ~mode1) && 0 == ~nomsg + 1) && ~mode3 == 0) - InvariantResult [Line: 279]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && ~mode2 <= 1) && 1 <= check_~tmp~76) && 0 == ~nomsg + 1) && !(~p1_old + 1 == 0) - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && 0 == ~nomsg + 1) && 0 <= ~p1_new) && ~mode3 == 0) || ((((!(0 == assert_~arg) && ~mode2 <= 1) && ~r1 <= 1) && 0 == ~nomsg + 1) && !(~p1_old + 1 == 0)) - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: ((((~r1 <= 0 && !(0 == assert_~arg)) && ~mode2 <= 1) && 0 == ~nomsg + 1) && !(~p1_old + 1 == 0)) || (((~r1 <= 0 && 512 <= ~mode1) && 0 == ~nomsg + 1) && ~mode3 == 0) - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && ~mode2 <= 1) && 0 == ~nomsg + 1) && 0 <= ~p1_new) && ~mode3 == 0 - InvariantResult [Line: 225]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && 0 == ~nomsg + 1) && 0 <= ~p1_new) && ~mode3 == 0) || ((((!(0 == assert_~arg) && ~mode2 <= 1) && ~r1 <= 1) && 0 == ~nomsg + 1) && !(~p1_old + 1 == 0)) - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && ~mode2 <= 1) && 0 == ~nomsg + 1) && !(~p1_old + 1 == 0)) && !(0 == assert_#in~arg) - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: ((((~r1 <= 0 && ~mode2 <= 1) && 1 <= check_~tmp~76) && 1 <= main_~c1~83) && 0 == ~nomsg + 1) && !(~p1_old + 1 == 0) - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: ((((~r1 <= 0 && !(0 == assert_~arg)) && ~mode2 <= 1) && !(0 == assert_#in~arg)) && 0 == ~nomsg + 1) && !(~p1_old + 1 == 0) - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: ((~r1 <= 0 && ~mode2 <= 1) && 0 == ~nomsg + 1) && 0 <= ~p1_new - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 157 SDtfs, 127 SDslu, 136 SDs, 0 SdLazy, 62 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=6, 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, 7 MinimizatonAttempts, 66 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 31 NumberOfFragments, 315 HoareAnnotationTreeSize, 13 FomulaSimplifications, 459 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 50 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 8541 SizeOfPredicates, 1 NumberOfNonLiveVariables, 227 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 28/36 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.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_10-19-45-602.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bplTransformedIcfg_BEv2_24.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_10-19-45-602.csv Received shutdown request...