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.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-bd42740 [2018-09-23 21:22:23,583 INFO L170 SettingsManager]: Resetting all preferences to default values... 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[2018-09-23 21:22:23,652 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 [2018-09-23 21:22:23,679 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-23 21:22:23,680 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-23 21:22:23,683 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-23 21:22:23,684 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-23 21:22:23,684 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-23 21:22:23,684 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-23 21:22:23,685 INFO L133 SettingsManager]: * Use SBE=true [2018-09-23 21:22:23,685 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-23 21:22:23,685 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-23 21:22:23,685 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-23 21:22:23,686 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-23 21:22:23,687 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-23 21:22:23,687 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-23 21:22:23,687 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-23 21:22:23,687 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-23 21:22:23,687 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-23 21:22:23,687 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-23 21:22:23,688 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-23 21:22:23,688 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-23 21:22:23,688 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-23 21:22:23,688 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-23 21:22:23,690 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-23 21:22:23,690 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-23 21:22:23,690 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-23 21:22:23,690 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-23 21:22:23,690 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-23 21:22:23,691 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-23 21:22:23,691 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-23 21:22:23,691 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-23 21:22:23,691 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-23 21:22:23,739 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-23 21:22:23,752 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-23 21:22:23,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-23 21:22:23,758 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-23 21:22:23,759 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-23 21:22:23,759 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl [2018-09-23 21:22:23,760 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl' [2018-09-23 21:22:23,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-23 21:22:23,858 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-23 21:22:23,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-23 21:22:23,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-23 21:22:23,859 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-23 21:22:23,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:22:23" (1/1) ... [2018-09-23 21:22:23,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:22:23" (1/1) ... [2018-09-23 21:22:23,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-23 21:22:23,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-23 21:22:23,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-23 21:22:23,911 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-23 21:22:23,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:22:23" (1/1) ... [2018-09-23 21:22:23,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:22:23" (1/1) ... [2018-09-23 21:22:23,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:22:23" (1/1) ... [2018-09-23 21:22:23,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:22:23" (1/1) ... [2018-09-23 21:22:23,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:22:23" (1/1) ... [2018-09-23 21:22:23,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:22:23" (1/1) ... [2018-09-23 21:22:23,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:22:23" (1/1) ... [2018-09-23 21:22:23,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-23 21:22:23,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-23 21:22:23,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-23 21:22:23,939 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-23 21:22:23,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:22:23" (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 [2018-09-23 21:22:24,012 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-23 21:22:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-23 21:22:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-23 21:22:24,642 INFO L354 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-23 21:22:24,643 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 09:22:24 BoogieIcfgContainer [2018-09-23 21:22:24,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-23 21:22:24,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-23 21:22:24,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-23 21:22:24,647 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-23 21:22:24,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:22:23" (1/2) ... [2018-09-23 21:22:24,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a74d1a4 and model type pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 09:22:24, skipping insertion in model container [2018-09-23 21:22:24,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 09:22:24" (2/2) ... [2018-09-23 21:22:24,651 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl [2018-09-23 21:22:24,662 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-23 21:22:24,673 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-23 21:22:24,719 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-23 21:22:24,720 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-23 21:22:24,720 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-23 21:22:24,721 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-23 21:22:24,721 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-23 21:22:24,721 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-23 21:22:24,721 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-23 21:22:24,721 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-23 21:22:24,721 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-23 21:22:24,735 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-09-23 21:22:24,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-23 21:22:24,742 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:24,743 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:22:24,744 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:24,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:24,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1823027031, now seen corresponding path program 1 times [2018-09-23 21:22:24,751 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:24,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:24,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:24,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:24,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:22:24,962 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:22:24,963 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:22:24,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:22:24,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:22:24,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:22:24,980 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-09-23 21:22:25,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:25,037 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2018-09-23 21:22:25,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:22:25,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-23 21:22:25,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:25,050 INFO L225 Difference]: With dead ends: 35 [2018-09-23 21:22:25,051 INFO L226 Difference]: Without dead ends: 19 [2018-09-23 21:22:25,054 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 [2018-09-23 21:22:25,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-23 21:22:25,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-09-23 21:22:25,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-09-23 21:22:25,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2018-09-23 21:22:25,092 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 14 [2018-09-23 21:22:25,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:25,093 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2018-09-23 21:22:25,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:22:25,093 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2018-09-23 21:22:25,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-23 21:22:25,094 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:25,094 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:22:25,094 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:25,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:25,095 INFO L82 PathProgramCache]: Analyzing trace with hash -2078913255, now seen corresponding path program 1 times [2018-09-23 21:22:25,095 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:25,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:25,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:25,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:25,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:22:25,180 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:22:25,180 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:22:25,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:22:25,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:22:25,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:22:25,183 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 3 states. [2018-09-23 21:22:25,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:25,229 INFO L93 Difference]: Finished difference Result 49 states and 65 transitions. [2018-09-23 21:22:25,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:22:25,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-23 21:22:25,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:25,231 INFO L225 Difference]: With dead ends: 49 [2018-09-23 21:22:25,232 INFO L226 Difference]: Without dead ends: 35 [2018-09-23 21:22:25,233 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 [2018-09-23 21:22:25,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-09-23 21:22:25,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-09-23 21:22:25,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-09-23 21:22:25,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2018-09-23 21:22:25,244 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 14 [2018-09-23 21:22:25,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:25,244 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2018-09-23 21:22:25,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:22:25,245 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2018-09-23 21:22:25,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-23 21:22:25,246 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:25,246 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:22:25,246 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:25,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:25,247 INFO L82 PathProgramCache]: Analyzing trace with hash -2136171557, now seen corresponding path program 1 times [2018-09-23 21:22:25,247 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:25,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:25,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:25,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:25,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:22:25,385 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:22:25,385 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-23 21:22:25,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-23 21:22:25,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-23 21:22:25,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-23 21:22:25,389 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 4 states. [2018-09-23 21:22:25,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:25,516 INFO L93 Difference]: Finished difference Result 80 states and 107 transitions. [2018-09-23 21:22:25,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-23 21:22:25,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-09-23 21:22:25,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:25,522 INFO L225 Difference]: With dead ends: 80 [2018-09-23 21:22:25,522 INFO L226 Difference]: Without dead ends: 54 [2018-09-23 21:22:25,523 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 [2018-09-23 21:22:25,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-09-23 21:22:25,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 35. [2018-09-23 21:22:25,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-09-23 21:22:25,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2018-09-23 21:22:25,533 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 14 [2018-09-23 21:22:25,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:25,534 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2018-09-23 21:22:25,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-23 21:22:25,534 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2018-09-23 21:22:25,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-23 21:22:25,535 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:25,535 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:22:25,536 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:25,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:25,536 INFO L82 PathProgramCache]: Analyzing trace with hash -2136111975, now seen corresponding path program 1 times [2018-09-23 21:22:25,536 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:25,537 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:25,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:25,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:22:25,668 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:22:25,668 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-23 21:22:25,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-23 21:22:25,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-23 21:22:25,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-23 21:22:25,671 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand 4 states. [2018-09-23 21:22:25,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:25,764 INFO L93 Difference]: Finished difference Result 68 states and 87 transitions. [2018-09-23 21:22:25,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-23 21:22:25,764 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-09-23 21:22:25,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:25,767 INFO L225 Difference]: With dead ends: 68 [2018-09-23 21:22:25,768 INFO L226 Difference]: Without dead ends: 66 [2018-09-23 21:22:25,769 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 [2018-09-23 21:22:25,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-09-23 21:22:25,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 37. [2018-09-23 21:22:25,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-09-23 21:22:25,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2018-09-23 21:22:25,781 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 46 transitions. Word has length 14 [2018-09-23 21:22:25,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:25,785 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 46 transitions. [2018-09-23 21:22:25,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-23 21:22:25,785 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 46 transitions. [2018-09-23 21:22:25,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-23 21:22:25,786 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:25,786 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:22:25,786 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:25,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:25,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1820747817, now seen corresponding path program 1 times [2018-09-23 21:22:25,787 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:25,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:25,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:25,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:25,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:22:25,857 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:22:25,857 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:22:25,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:22:25,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:22:25,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:22:25,858 INFO L87 Difference]: Start difference. First operand 37 states and 46 transitions. Second operand 3 states. [2018-09-23 21:22:25,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:25,902 INFO L93 Difference]: Finished difference Result 73 states and 92 transitions. [2018-09-23 21:22:25,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:22:25,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-09-23 21:22:25,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:25,905 INFO L225 Difference]: With dead ends: 73 [2018-09-23 21:22:25,905 INFO L226 Difference]: Without dead ends: 53 [2018-09-23 21:22:25,908 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 [2018-09-23 21:22:25,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-09-23 21:22:25,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2018-09-23 21:22:25,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-23 21:22:25,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2018-09-23 21:22:25,931 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 14 [2018-09-23 21:22:25,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:25,931 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2018-09-23 21:22:25,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:22:25,931 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2018-09-23 21:22:25,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-23 21:22:25,932 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:25,935 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:22:25,935 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:25,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:25,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1361822969, now seen corresponding path program 1 times [2018-09-23 21:22:25,936 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:25,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:25,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:25,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:26,048 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:22:26,051 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:22:26,051 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-23 21:22:26,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:22:26,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:22:26,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:22:26,053 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand 3 states. [2018-09-23 21:22:26,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:26,078 INFO L93 Difference]: Finished difference Result 99 states and 126 transitions. [2018-09-23 21:22:26,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:22:26,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-09-23 21:22:26,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:26,080 INFO L225 Difference]: With dead ends: 99 [2018-09-23 21:22:26,080 INFO L226 Difference]: Without dead ends: 53 [2018-09-23 21:22:26,081 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 [2018-09-23 21:22:26,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-09-23 21:22:26,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-09-23 21:22:26,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-09-23 21:22:26,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2018-09-23 21:22:26,094 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 26 [2018-09-23 21:22:26,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:26,094 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2018-09-23 21:22:26,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:22:26,095 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2018-09-23 21:22:26,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-23 21:22:26,096 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:22:26,096 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] [2018-09-23 21:22:26,096 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:22:26,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:22:26,096 INFO L82 PathProgramCache]: Analyzing trace with hash 552476343, now seen corresponding path program 1 times [2018-09-23 21:22:26,097 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:22:26,097 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:22:26,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:26,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:26,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:22:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:22:26,388 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:22:26,388 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 [2018-09-23 21:22:26,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:22:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:22:26,477 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:22:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-23 21:22:26,565 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:22:26,566 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-09-23 21:22:26,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-23 21:22:26,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-23 21:22:26,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-23 21:22:26,567 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand 7 states. [2018-09-23 21:22:27,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:22:27,174 INFO L93 Difference]: Finished difference Result 73 states and 87 transitions. [2018-09-23 21:22:27,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-23 21:22:27,176 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-09-23 21:22:27,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:22:27,176 INFO L225 Difference]: With dead ends: 73 [2018-09-23 21:22:27,176 INFO L226 Difference]: Without dead ends: 0 [2018-09-23 21:22:27,177 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2018-09-23 21:22:27,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-23 21:22:27,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-23 21:22:27,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-23 21:22:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-23 21:22:27,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-09-23 21:22:27,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:22:27,179 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-23 21:22:27,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-23 21:22:27,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-23 21:22:27,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-23 21:22:27,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-23 21:22:27,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-23 21:22:27,453 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-09-23 21:22:27,937 WARN L178 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-09-23 21:22:28,076 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 47 313) no Hoare annotation was computed. [2018-09-23 21:22:28,077 INFO L422 ceAbstractionStarter]: At program point L219(lines 219 232) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse2 (not (= 0 ULTIMATE.start_assert_~arg))) (.cse3 (<= ~mode3 1)) (.cse4 (not (= (+ ~p2_old 1) 0))) (.cse1 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 (<= 512 ~mode2)) (and .cse2 (<= ~r1 1) .cse3 .cse4 .cse1 (= ~mode1 0)) (and .cse0 .cse2 (<= 1 ULTIMATE.start_main_~c1~85) .cse3 .cse4 (not (= 0 |ULTIMATE.start_assert_#in~arg|)) .cse1 (<= 1 ULTIMATE.start_check_~tmp~78)))) [2018-09-23 21:22:28,077 INFO L422 ceAbstractionStarter]: At program point L281(lines 276 282) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode3 1) (not (= (+ ~p2_old 1) 0)) (= 0 (+ ~nomsg 1)) (<= 1 ULTIMATE.start_check_~tmp~78)) [2018-09-23 21:22:28,077 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 312) no Hoare annotation was computed. [2018-09-23 21:22:28,078 INFO L422 ceAbstractionStarter]: At program point L310(lines 191 310) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse1 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 (<= 512 ~mode2) (= ~mode1 0)) (and .cse0 (not (= 0 ULTIMATE.start_assert_~arg)) (<= 1 ULTIMATE.start_main_~c1~85) (<= ~mode3 1) (not (= (+ ~p2_old 1) 0)) (not (= 0 |ULTIMATE.start_assert_#in~arg|)) .cse1 (<= 1 ULTIMATE.start_check_~tmp~78)))) [2018-09-23 21:22:28,078 INFO L422 ceAbstractionStarter]: At program point L238(lines 231 239) the Hoare annotation is: (let ((.cse3 (<= ~r1 0)) (.cse0 (<= ~mode3 1)) (.cse1 (not (= (+ ~p2_old 1) 0))) (.cse2 (= 0 (+ ~nomsg 1)))) (or (and (<= ~r1 1) .cse0 .cse1 .cse2 (= ~mode1 0)) (and .cse3 .cse2 (<= 0 ~p2_new)) (and .cse3 .cse0 .cse1 .cse2))) [2018-09-23 21:22:28,078 INFO L422 ceAbstractionStarter]: At program point L302(lines 302 308) the Hoare annotation is: (and (<= ~r1 0) (not (= 0 ULTIMATE.start_assert_~arg)) (<= 1 ULTIMATE.start_main_~c1~85) (<= ~mode3 1) (not (= (+ ~p2_old 1) 0)) (not (= 0 |ULTIMATE.start_assert_#in~arg|)) (= 0 (+ ~nomsg 1)) (<= 1 ULTIMATE.start_check_~tmp~78)) [2018-09-23 21:22:28,079 INFO L422 ceAbstractionStarter]: At program point L298(lines 294 299) the Hoare annotation is: (and (<= ~r1 0) (<= 1 ULTIMATE.start_main_~c1~85) (<= ~mode3 1) (not (= (+ ~p2_old 1) 0)) (not (= 0 |ULTIMATE.start_assert_#in~arg|)) (= 0 (+ ~nomsg 1)) (<= 1 ULTIMATE.start_check_~tmp~78)) [2018-09-23 21:22:28,079 INFO L422 ceAbstractionStarter]: At program point L288(lines 288 295) the Hoare annotation is: (and (<= ~r1 0) (<= 1 ULTIMATE.start_main_~c1~85) (<= ~mode3 1) (not (= (+ ~p2_old 1) 0)) (= 0 (+ ~nomsg 1)) (<= 1 ULTIMATE.start_check_~tmp~78)) [2018-09-23 21:22:28,079 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 47 313) no Hoare annotation was computed. [2018-09-23 21:22:28,079 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 47 313) no Hoare annotation was computed. [2018-09-23 21:22:28,079 INFO L422 ceAbstractionStarter]: At program point L214(lines 204 215) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse2 (not (= 0 ULTIMATE.start_assert_~arg))) (.cse3 (<= ~mode3 1)) (.cse4 (not (= (+ ~p2_old 1) 0))) (.cse1 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 (<= 512 ~mode2)) (and .cse2 (<= ~r1 1) .cse3 .cse4 .cse1 (= ~mode1 0)) (and .cse0 .cse2 (<= 1 ULTIMATE.start_main_~c1~85) .cse3 .cse4 (not (= 0 |ULTIMATE.start_assert_#in~arg|)) .cse1 (<= 1 ULTIMATE.start_check_~tmp~78)))) [2018-09-23 21:22:28,080 INFO L422 ceAbstractionStarter]: At program point L243(lines 243 252) the Hoare annotation is: (let ((.cse3 (<= ~r1 0)) (.cse0 (<= ~mode3 1)) (.cse1 (not (= (+ ~p2_old 1) 0))) (.cse2 (= 0 (+ ~nomsg 1)))) (or (and (<= ~r1 1) .cse0 .cse1 .cse2 (= ~mode1 0)) (and .cse3 .cse2 (<= 0 ~p2_new)) (and .cse3 .cse0 .cse1 .cse2))) [2018-09-23 21:22:28,080 INFO L422 ceAbstractionStarter]: At program point L307(lines 307 311) the Hoare annotation is: false [2018-09-23 21:22:28,080 INFO L422 ceAbstractionStarter]: At program point L270(lines 270 277) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode3 1) (not (= (+ ~p2_old 1) 0)) (= 0 (+ ~nomsg 1))) [2018-09-23 21:22:28,081 INFO L422 ceAbstractionStarter]: At program point L196(lines 196 205) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse1 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 (<= 512 ~mode2) (= ~mode1 0)) (and .cse0 (not (= 0 ULTIMATE.start_assert_~arg)) (<= 1 ULTIMATE.start_main_~c1~85) (<= ~mode3 1) (not (= (+ ~p2_old 1) 0)) (not (= 0 |ULTIMATE.start_assert_#in~arg|)) .cse1 (<= 1 ULTIMATE.start_check_~tmp~78)))) [2018-09-23 21:22:28,081 INFO L422 ceAbstractionStarter]: At program point L258(lines 251 259) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode3 1) (= 0 (+ ~nomsg 1)) (<= 0 ~p2_new)) [2018-09-23 21:22:28,098 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 09:22:28 BoogieIcfgContainer [2018-09-23 21:22:28,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-23 21:22:28,099 INFO L168 Benchmark]: Toolchain (without parser) took 4243.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 203.5 MB). Peak memory consumption was 203.5 MB. Max. memory is 7.1 GB. [2018-09-23 21:22:28,100 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-09-23 21:22:28,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.29 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. [2018-09-23 21:22:28,101 INFO L168 Benchmark]: Boogie Preprocessor took 28.07 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 21:22:28,102 INFO L168 Benchmark]: RCFGBuilder took 704.24 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-23 21:22:28,103 INFO L168 Benchmark]: TraceAbstraction took 3454.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 171.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 7.1 GB. [2018-09-23 21:22:28,107 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.29 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 28.07 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 704.24 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3454.11 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 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: 312]: 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: 219]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && 0 == ~nomsg + 1) && 512 <= ~mode2) || (((((!(0 == assert_~arg) && ~r1 <= 1) && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && 0 == ~nomsg + 1) && ~mode1 == 0)) || (((((((~r1 <= 0 && !(0 == assert_~arg)) && 1 <= main_~c1~85) && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && !(0 == assert_#in~arg)) && 0 == ~nomsg + 1) && 1 <= check_~tmp~78) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && 0 == ~nomsg + 1) && 512 <= ~mode2) && ~mode1 == 0) || (((((((~r1 <= 0 && !(0 == assert_~arg)) && 1 <= main_~c1~85) && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && !(0 == assert_#in~arg)) && 0 == ~nomsg + 1) && 1 <= check_~tmp~78) - InvariantResult [Line: 243]: Loop Invariant Derived loop invariant: (((((~r1 <= 1 && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && 0 == ~nomsg + 1) && ~mode1 == 0) || ((~r1 <= 0 && 0 == ~nomsg + 1) && 0 <= ~p2_new)) || (((~r1 <= 0 && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && 0 == ~nomsg + 1) - InvariantResult [Line: 294]: Loop Invariant Derived loop invariant: (((((~r1 <= 0 && 1 <= main_~c1~85) && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && !(0 == assert_#in~arg)) && 0 == ~nomsg + 1) && 1 <= check_~tmp~78 - InvariantResult [Line: 288]: Loop Invariant Derived loop invariant: ((((~r1 <= 0 && 1 <= main_~c1~85) && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && 0 == ~nomsg + 1) && 1 <= check_~tmp~78 - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && 0 == ~nomsg + 1) && 512 <= ~mode2) || (((((!(0 == assert_~arg) && ~r1 <= 1) && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && 0 == ~nomsg + 1) && ~mode1 == 0)) || (((((((~r1 <= 0 && !(0 == assert_~arg)) && 1 <= main_~c1~85) && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && !(0 == assert_#in~arg)) && 0 == ~nomsg + 1) && 1 <= check_~tmp~78) - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: ((~r1 <= 0 && ~mode3 <= 1) && 0 == ~nomsg + 1) && 0 <= ~p2_new - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: (((((~r1 <= 1 && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && 0 == ~nomsg + 1) && ~mode1 == 0) || ((~r1 <= 0 && 0 == ~nomsg + 1) && 0 <= ~p2_new)) || (((~r1 <= 0 && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && 0 == ~nomsg + 1) - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: ((~r1 <= 0 && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && 0 == ~nomsg + 1 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: ((((((~r1 <= 0 && !(0 == assert_~arg)) && 1 <= main_~c1~85) && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && !(0 == assert_#in~arg)) && 0 == ~nomsg + 1) && 1 <= check_~tmp~78 - InvariantResult [Line: 276]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && 0 == ~nomsg + 1) && 1 <= check_~tmp~78 - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && 0 == ~nomsg + 1) && 512 <= ~mode2) && ~mode1 == 0) || (((((((~r1 <= 0 && !(0 == assert_~arg)) && 1 <= main_~c1~85) && ~mode3 <= 1) && !(~p2_old + 1 == 0)) && !(0 == assert_#in~arg)) && 0 == ~nomsg + 1) && 1 <= check_~tmp~78) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 162 SDtfs, 141 SDslu, 140 SDs, 0 SdLazy, 72 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 52 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 39 NumberOfFragments, 479 HoareAnnotationTreeSize, 13 FomulaSimplifications, 485 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 8839 SizeOfPredicates, 1 NumberOfNonLiveVariables, 223 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.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-23_21-22-28-130.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c_9.bplTransformedIcfg_BEv2_29.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-23_21-22-28-130.csv Received shutdown request...