java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 21:17:18,249 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 21:17:18,251 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 21:17:18,266 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 21:17:18,266 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 21:17:18,267 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 21:17:18,269 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 21:17:18,270 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 21:17:18,272 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 21:17:18,273 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 21:17:18,274 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 21:17:18,297 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-26 21:17:18,312 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 21:17:18,313 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 21:17:18,314 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 21:17:18,314 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 21:17:18,314 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 21:17:18,315 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 21:17:18,315 INFO L133 SettingsManager]: * Use SBE=true [2018-09-26 21:17:18,315 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 21:17:18,315 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 21:17:18,315 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 21:17:18,316 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 21:17:18,316 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 21:17:18,316 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 21:17:18,316 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 21:17:18,316 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 21:17:18,317 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 21:17:18,317 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 21:17:18,317 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 21:17:18,317 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 21:17:18,317 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-26 21:17:18,318 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 21:17:18,318 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-26 21:17:18,318 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:17:18,318 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 21:17:18,318 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 21:17:18,319 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 21:17:18,319 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-26 21:17:18,319 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 21:17:18,319 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 21:17:18,319 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 21:17:18,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 21:17:18,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 21:17:18,386 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 21:17:18,387 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 21:17:18,388 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 21:17:18,389 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl [2018-09-26 21:17:18,389 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl' [2018-09-26 21:17:18,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 21:17:18,476 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 21:17:18,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 21:17:18,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 21:17:18,477 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 21:17:18,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:17:18" (1/1) ... [2018-09-26 21:17:18,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:17:18" (1/1) ... [2018-09-26 21:17:18,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 21:17:18,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 21:17:18,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 21:17:18,526 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 21:17:18,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:17:18" (1/1) ... [2018-09-26 21:17:18,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:17:18" (1/1) ... [2018-09-26 21:17:18,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:17:18" (1/1) ... [2018-09-26 21:17:18,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:17:18" (1/1) ... [2018-09-26 21:17:18,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:17:18" (1/1) ... [2018-09-26 21:17:18,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:17:18" (1/1) ... [2018-09-26 21:17:18,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:17:18" (1/1) ... [2018-09-26 21:17:18,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 21:17:18,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 21:17:18,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 21:17:18,578 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 21:17:18,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:17:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:17:18,663 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-09-26 21:17:18,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 21:17:18,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 21:17:19,305 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 21:17:19,306 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:17:19 BoogieIcfgContainer [2018-09-26 21:17:19,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 21:17:19,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 21:17:19,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 21:17:19,311 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 21:17:19,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:17:18" (1/2) ... [2018-09-26 21:17:19,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138ef9a1 and model type pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:17:19, skipping insertion in model container [2018-09-26 21:17:19,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:17:19" (2/2) ... [2018-09-26 21:17:19,315 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl [2018-09-26 21:17:19,325 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-26 21:17:19,333 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 21:17:19,385 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 21:17:19,386 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 21:17:19,387 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 21:17:19,387 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-26 21:17:19,387 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 21:17:19,387 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 21:17:19,387 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 21:17:19,387 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 21:17:19,388 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 21:17:19,404 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-09-26 21:17:19,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 21:17:19,411 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:19,412 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:17:19,413 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:19,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:19,420 INFO L82 PathProgramCache]: Analyzing trace with hash -417618601, now seen corresponding path program 1 times [2018-09-26 21:17:19,422 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:19,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:19,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:19,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:19,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:19,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:19,701 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:17:19,701 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:17:19,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:17:19,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:17:19,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:19,720 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2018-09-26 21:17:19,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:19,786 INFO L93 Difference]: Finished difference Result 43 states and 60 transitions. [2018-09-26 21:17:19,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:17:19,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-09-26 21:17:19,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:19,800 INFO L225 Difference]: With dead ends: 43 [2018-09-26 21:17:19,801 INFO L226 Difference]: Without dead ends: 25 [2018-09-26 21:17:19,804 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:19,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-09-26 21:17:19,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-09-26 21:17:19,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-09-26 21:17:19,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2018-09-26 21:17:19,848 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 16 [2018-09-26 21:17:19,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:19,848 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2018-09-26 21:17:19,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:17:19,849 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2018-09-26 21:17:19,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 21:17:19,850 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:19,850 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:17:19,850 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:19,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:19,851 INFO L82 PathProgramCache]: Analyzing trace with hash 391728025, now seen corresponding path program 1 times [2018-09-26 21:17:19,851 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:19,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:19,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:19,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:19,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:19,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:19,983 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:17:19,983 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:17:19,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:17:19,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:17:19,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:19,986 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 3 states. [2018-09-26 21:17:20,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:20,034 INFO L93 Difference]: Finished difference Result 63 states and 86 transitions. [2018-09-26 21:17:20,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:17:20,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-09-26 21:17:20,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:20,036 INFO L225 Difference]: With dead ends: 63 [2018-09-26 21:17:20,036 INFO L226 Difference]: Without dead ends: 47 [2018-09-26 21:17:20,038 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:20,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-09-26 21:17:20,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2018-09-26 21:17:20,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-09-26 21:17:20,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 62 transitions. [2018-09-26 21:17:20,050 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 62 transitions. Word has length 16 [2018-09-26 21:17:20,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:20,050 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 62 transitions. [2018-09-26 21:17:20,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:17:20,051 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2018-09-26 21:17:20,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 21:17:20,052 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:20,052 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:17:20,052 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:20,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:20,053 INFO L82 PathProgramCache]: Analyzing trace with hash 448986327, now seen corresponding path program 1 times [2018-09-26 21:17:20,053 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:20,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:20,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:20,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:20,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:20,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:20,175 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:17:20,179 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-26 21:17:20,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 21:17:20,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 21:17:20,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:17:20,180 INFO L87 Difference]: Start difference. First operand 45 states and 62 transitions. Second operand 4 states. [2018-09-26 21:17:20,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:20,272 INFO L93 Difference]: Finished difference Result 87 states and 119 transitions. [2018-09-26 21:17:20,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 21:17:20,274 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-09-26 21:17:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:20,276 INFO L225 Difference]: With dead ends: 87 [2018-09-26 21:17:20,276 INFO L226 Difference]: Without dead ends: 85 [2018-09-26 21:17:20,277 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 [2018-09-26 21:17:20,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-26 21:17:20,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 49. [2018-09-26 21:17:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-09-26 21:17:20,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2018-09-26 21:17:20,301 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 16 [2018-09-26 21:17:20,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:20,301 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2018-09-26 21:17:20,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 21:17:20,302 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2018-09-26 21:17:20,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 21:17:20,303 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:20,303 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:17:20,306 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:20,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:20,309 INFO L82 PathProgramCache]: Analyzing trace with hash 448926745, now seen corresponding path program 1 times [2018-09-26 21:17:20,309 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:20,309 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:20,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:20,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:20,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:20,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:20,468 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:17:20,469 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-26 21:17:20,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 21:17:20,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 21:17:20,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 21:17:20,471 INFO L87 Difference]: Start difference. First operand 49 states and 66 transitions. Second operand 4 states. [2018-09-26 21:17:20,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:20,640 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2018-09-26 21:17:20,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 21:17:20,640 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-09-26 21:17:20,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:20,645 INFO L225 Difference]: With dead ends: 109 [2018-09-26 21:17:20,647 INFO L226 Difference]: Without dead ends: 75 [2018-09-26 21:17:20,648 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 [2018-09-26 21:17:20,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-09-26 21:17:20,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 49. [2018-09-26 21:17:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-09-26 21:17:20,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 64 transitions. [2018-09-26 21:17:20,673 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 64 transitions. Word has length 16 [2018-09-26 21:17:20,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:20,674 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 64 transitions. [2018-09-26 21:17:20,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 21:17:20,674 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2018-09-26 21:17:20,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 21:17:20,677 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:20,677 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:17:20,678 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:20,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:20,678 INFO L82 PathProgramCache]: Analyzing trace with hash -619448807, now seen corresponding path program 1 times [2018-09-26 21:17:20,679 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:20,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:20,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:20,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:20,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:20,764 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:17:20,764 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:17:20,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:17:20,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:17:20,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:20,766 INFO L87 Difference]: Start difference. First operand 49 states and 64 transitions. Second operand 3 states. [2018-09-26 21:17:20,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:20,798 INFO L93 Difference]: Finished difference Result 69 states and 90 transitions. [2018-09-26 21:17:20,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:17:20,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-09-26 21:17:20,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:20,800 INFO L225 Difference]: With dead ends: 69 [2018-09-26 21:17:20,800 INFO L226 Difference]: Without dead ends: 43 [2018-09-26 21:17:20,801 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-09-26 21:17:20,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-09-26 21:17:20,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-09-26 21:17:20,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2018-09-26 21:17:20,811 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 16 [2018-09-26 21:17:20,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:20,812 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2018-09-26 21:17:20,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:17:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2018-09-26 21:17:20,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-26 21:17:20,813 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:20,813 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:17:20,814 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:20,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:20,814 INFO L82 PathProgramCache]: Analyzing trace with hash -831333387, now seen corresponding path program 1 times [2018-09-26 21:17:20,814 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:20,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:20,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:20,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:20,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:20,881 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:20,881 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:17:20,882 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:17:20,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:17:20,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:17:20,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:20,883 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand 3 states. [2018-09-26 21:17:20,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:20,912 INFO L93 Difference]: Finished difference Result 77 states and 99 transitions. [2018-09-26 21:17:20,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:17:20,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-09-26 21:17:20,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:20,913 INFO L225 Difference]: With dead ends: 77 [2018-09-26 21:17:20,914 INFO L226 Difference]: Without dead ends: 43 [2018-09-26 21:17:20,914 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:20,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-09-26 21:17:20,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-09-26 21:17:20,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-09-26 21:17:20,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2018-09-26 21:17:20,928 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 30 [2018-09-26 21:17:20,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:20,929 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2018-09-26 21:17:20,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:17:20,929 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2018-09-26 21:17:20,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-26 21:17:20,930 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:20,930 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:17:20,931 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:20,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:20,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1089498825, now seen corresponding path program 1 times [2018-09-26 21:17:20,931 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:20,932 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:20,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:20,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:20,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:21,016 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:21,016 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:17:21,017 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:17:21,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:17:21,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:17:21,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:21,018 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 3 states. [2018-09-26 21:17:21,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:21,056 INFO L93 Difference]: Finished difference Result 77 states and 95 transitions. [2018-09-26 21:17:21,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:17:21,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-09-26 21:17:21,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:21,057 INFO L225 Difference]: With dead ends: 77 [2018-09-26 21:17:21,058 INFO L226 Difference]: Without dead ends: 43 [2018-09-26 21:17:21,058 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:21,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-09-26 21:17:21,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-09-26 21:17:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-09-26 21:17:21,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2018-09-26 21:17:21,073 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 30 [2018-09-26 21:17:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:21,073 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2018-09-26 21:17:21,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:17:21,073 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-09-26 21:17:21,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-26 21:17:21,075 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:21,075 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:17:21,076 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:21,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:21,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1482525835, now seen corresponding path program 1 times [2018-09-26 21:17:21,076 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:21,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:21,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:21,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:21,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:17:21,297 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:17:21,297 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) [2018-09-26 21:17:21,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:17:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:21,414 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:17:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-26 21:17:21,687 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:17:21,687 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-09-26 21:17:21,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 21:17:21,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 21:17:21,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-26 21:17:21,688 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 6 states. [2018-09-26 21:17:22,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:22,327 INFO L93 Difference]: Finished difference Result 115 states and 135 transitions. [2018-09-26 21:17:22,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 21:17:22,328 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2018-09-26 21:17:22,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:22,329 INFO L225 Difference]: With dead ends: 115 [2018-09-26 21:17:22,329 INFO L226 Difference]: Without dead ends: 81 [2018-09-26 21:17:22,330 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-09-26 21:17:22,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-26 21:17:22,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 77. [2018-09-26 21:17:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-09-26 21:17:22,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2018-09-26 21:17:22,359 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 30 [2018-09-26 21:17:22,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:22,359 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 88 transitions. [2018-09-26 21:17:22,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 21:17:22,359 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions. [2018-09-26 21:17:22,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-26 21:17:22,361 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:22,361 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:17:22,362 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:22,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:22,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1509754543, now seen corresponding path program 2 times [2018-09-26 21:17:22,362 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:22,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:22,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:22,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:17:22,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-26 21:17:22,458 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:17:22,458 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 21:17:22,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:17:22,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:17:22,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:22,459 INFO L87 Difference]: Start difference. First operand 77 states and 88 transitions. Second operand 3 states. [2018-09-26 21:17:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:22,519 INFO L93 Difference]: Finished difference Result 127 states and 146 transitions. [2018-09-26 21:17:22,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:17:22,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-09-26 21:17:22,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:22,521 INFO L225 Difference]: With dead ends: 127 [2018-09-26 21:17:22,521 INFO L226 Difference]: Without dead ends: 57 [2018-09-26 21:17:22,522 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:22,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-26 21:17:22,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-09-26 21:17:22,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-09-26 21:17:22,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2018-09-26 21:17:22,536 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 44 [2018-09-26 21:17:22,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:22,537 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2018-09-26 21:17:22,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:17:22,537 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2018-09-26 21:17:22,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-26 21:17:22,538 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:17:22,538 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 21:17:22,539 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:17:22,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:17:22,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1974708173, now seen corresponding path program 1 times [2018-09-26 21:17:22,539 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:17:22,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:17:22,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:22,540 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:17:22,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:17:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:17:22,623 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-09-26 21:17:22,624 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:17:22,624 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:17:22,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:17:22,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:17:22,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:22,625 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 3 states. [2018-09-26 21:17:22,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:17:22,628 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2018-09-26 21:17:22,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:17:22,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-09-26 21:17:22,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:17:22,629 INFO L225 Difference]: With dead ends: 57 [2018-09-26 21:17:22,629 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 21:17:22,630 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:17:22,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 21:17:22,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 21:17:22,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 21:17:22,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 21:17:22,631 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-09-26 21:17:22,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:17:22,631 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 21:17:22,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:17:22,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 21:17:22,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 21:17:22,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 21:17:22,924 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-26 21:17:23,216 WARN L178 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-26 21:17:23,526 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-09-26 21:17:23,944 WARN L178 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2018-09-26 21:17:24,262 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-09-26 21:17:24,503 INFO L422 ceAbstractionStarter]: At program point L287(lines 281 288) the Hoare annotation is: (let ((.cse0 (<= ~mode2 1))) (or (and (<= ~r1 0) (<= 512 ~mode3) (<= 256 ~mode4) .cse0) (and .cse0 (<= ~r1 1) (<= ~mode3 1) (<= ~mode4 1) (<= 1 ULTIMATE.start_assert_~arg) (not (= ~p3_old ~nomsg))))) [2018-09-26 21:17:24,504 INFO L422 ceAbstractionStarter]: At program point L316(lines 316 325) the Hoare annotation is: (let ((.cse0 (<= ~mode2 1)) (.cse1 (<= ~mode3 1))) (or (and (<= ~r1 0) (<= 256 ~mode4) .cse0 .cse1 (not (= ~p3_new ~nomsg))) (and .cse0 (<= ~r1 1) .cse1 (<= ~mode4 1) (<= 1 ULTIMATE.start_assert_~arg) (not (= ~p3_old ~nomsg))))) [2018-09-26 21:17:24,504 INFO L422 ceAbstractionStarter]: At program point L250(lines 250 259) the Hoare annotation is: (let ((.cse0 (<= ~r1 0))) (or (and .cse0 (not (= 0 ULTIMATE.start_main_~c1~109)) (<= 1 ULTIMATE.start_check_~tmp~102) (<= ~mode2 1) (<= ~mode3 1) (<= ~mode4 1) (<= 1 ULTIMATE.start_assert_~arg) (not (= ~p3_old ~nomsg))) (and .cse0 (<= 512 ~mode3) (<= (+ ~mode1 257) 0) (<= 256 ~mode4)))) [2018-09-26 21:17:24,504 INFO L422 ceAbstractionStarter]: At program point L345(lines 345 353) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode2 1) (<= ~mode3 1) (<= ~mode4 1) (not (= ~p3_old ~nomsg))) [2018-09-26 21:17:24,505 INFO L422 ceAbstractionStarter]: At program point L267(lines 258 268) the Hoare annotation is: (or (and (<= ~mode2 1) (<= ~r1 1) (<= ~mode3 1) (<= ~mode4 1) (<= 1 ULTIMATE.start_assert_~arg) (not (= ~p3_old ~nomsg))) (and (<= ~r1 0) (<= 512 ~mode3) (<= 256 ~mode4))) [2018-09-26 21:17:24,505 INFO L422 ceAbstractionStarter]: At program point L292(lines 292 305) the Hoare annotation is: (let ((.cse0 (<= ~mode2 1))) (or (and (<= ~r1 0) (<= 512 ~mode3) (<= 256 ~mode4) .cse0) (and .cse0 (<= ~r1 1) (<= ~mode3 1) (<= ~mode4 1) (<= 1 ULTIMATE.start_assert_~arg) (not (= ~p3_old ~nomsg))))) [2018-09-26 21:17:24,505 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 61 391) no Hoare annotation was computed. [2018-09-26 21:17:24,505 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 61 391) no Hoare annotation was computed. [2018-09-26 21:17:24,505 INFO L422 ceAbstractionStarter]: At program point L272(lines 272 282) the Hoare annotation is: (or (and (<= ~mode2 1) (<= ~r1 1) (<= ~mode3 1) (<= ~mode4 1) (<= 1 ULTIMATE.start_assert_~arg) (not (= ~p3_old ~nomsg))) (and (<= ~r1 0) (<= 512 ~mode3) (<= 256 ~mode4))) [2018-09-26 21:17:24,506 INFO L422 ceAbstractionStarter]: At program point L363(lines 363 370) the Hoare annotation is: (and (<= ~r1 0) (not (= 0 ULTIMATE.start_main_~c1~109)) (<= 1 ULTIMATE.start_check_~tmp~102) (<= ~mode2 1) (<= ~mode3 1) (<= ~mode4 1) (not (= ~p3_old ~nomsg))) [2018-09-26 21:17:24,506 INFO L422 ceAbstractionStarter]: At program point L388(lines 388 389) the Hoare annotation is: false [2018-09-26 21:17:24,506 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 61 391) no Hoare annotation was computed. [2018-09-26 21:17:24,506 INFO L422 ceAbstractionStarter]: At program point L331(lines 324 332) the Hoare annotation is: (and (<= ~r1 0) (<= ~mode2 1) (<= ~mode3 1) (<= ~mode4 1) (not (= ~p3_new ~nomsg))) [2018-09-26 21:17:24,507 INFO L422 ceAbstractionStarter]: At program point L356(lines 352 357) the Hoare annotation is: (and (<= ~r1 0) (<= 1 ULTIMATE.start_check_~tmp~102) (<= ~mode2 1) (<= ~mode3 1) (<= ~mode4 1) (not (= ~p3_old ~nomsg))) [2018-09-26 21:17:24,507 INFO L422 ceAbstractionStarter]: At program point L385(lines 244 385) the Hoare annotation is: (let ((.cse0 (<= ~r1 0))) (or (and .cse0 (not (= 0 ULTIMATE.start_main_~c1~109)) (<= 1 ULTIMATE.start_check_~tmp~102) (<= ~mode2 1) (<= ~mode3 1) (<= ~mode4 1) (<= 1 ULTIMATE.start_assert_~arg) (not (= ~p3_old ~nomsg))) (and .cse0 (<= 512 ~mode3) (<= (+ ~mode1 257) 0) (<= 256 ~mode4)))) [2018-09-26 21:17:24,507 INFO L422 ceAbstractionStarter]: At program point L377(lines 377 386) the Hoare annotation is: (and (<= ~r1 0) (not (= 0 ULTIMATE.start_main_~c1~109)) (<= 1 ULTIMATE.start_check_~tmp~102) (<= ~mode2 1) (<= ~mode3 1) (<= ~mode4 1) (<= 1 ULTIMATE.start_assert_~arg) (<= 1 |ULTIMATE.start_assert_#in~arg|) (not (= ~p3_old ~nomsg))) [2018-09-26 21:17:24,507 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 390) no Hoare annotation was computed. [2018-09-26 21:17:24,508 INFO L422 ceAbstractionStarter]: At program point L311(lines 304 312) the Hoare annotation is: (let ((.cse0 (<= ~mode2 1)) (.cse1 (<= ~mode3 1))) (or (and (<= ~r1 0) (<= 256 ~mode4) .cse0 .cse1 (not (= ~p3_new ~nomsg))) (and .cse0 (<= ~r1 1) .cse1 (<= ~mode4 1) (<= 1 ULTIMATE.start_assert_~arg) (not (= ~p3_old ~nomsg))))) [2018-09-26 21:17:24,508 INFO L422 ceAbstractionStarter]: At program point L373(lines 369 374) the Hoare annotation is: (and (<= ~r1 0) (not (= 0 ULTIMATE.start_main_~c1~109)) (<= 1 ULTIMATE.start_check_~tmp~102) (<= ~mode2 1) (<= ~mode3 1) (<= ~mode4 1) (<= 1 |ULTIMATE.start_assert_#in~arg|) (not (= ~p3_old ~nomsg))) [2018-09-26 21:17:24,527 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:17:24 BoogieIcfgContainer [2018-09-26 21:17:24,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 21:17:24,528 INFO L168 Benchmark]: Toolchain (without parser) took 6054.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 288.1 MB). Peak memory consumption was 288.1 MB. Max. memory is 7.1 GB. [2018-09-26 21:17:24,529 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 21:17:24,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.33 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 21:17:24,530 INFO L168 Benchmark]: Boogie Preprocessor took 51.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 21:17:24,531 INFO L168 Benchmark]: RCFGBuilder took 729.11 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. [2018-09-26 21:17:24,532 INFO L168 Benchmark]: TraceAbstraction took 5219.44 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: 256.4 MB). Peak memory consumption was 256.4 MB. Max. memory is 7.1 GB. [2018-09-26 21:17:24,535 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.33 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 51.21 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 729.11 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 5219.44 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: 256.4 MB). Peak memory consumption was 256.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 390]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: ((((~r1 <= 0 && 1 <= check_~tmp~102) && ~mode2 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && !(~p3_old == ~nomsg) - InvariantResult [Line: 388]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: (((((((~r1 <= 0 && !(0 == main_~c1~109)) && 1 <= check_~tmp~102) && ~mode2 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && 1 <= assert_~arg) && !(~p3_old == ~nomsg)) || (((~r1 <= 0 && 512 <= ~mode3) && ~mode1 + 257 <= 0) && 256 <= ~mode4) - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && ~mode2 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && !(~p3_old == ~nomsg) - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: (((((((~r1 <= 0 && !(0 == main_~c1~109)) && 1 <= check_~tmp~102) && ~mode2 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && 1 <= assert_~arg) && 1 <= assert_#in~arg) && !(~p3_old == ~nomsg) - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: (((((~mode2 <= 1 && ~r1 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && 1 <= assert_~arg) && !(~p3_old == ~nomsg)) || ((~r1 <= 0 && 512 <= ~mode3) && 256 <= ~mode4) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: ((((~r1 <= 0 && 256 <= ~mode4) && ~mode2 <= 1) && ~mode3 <= 1) && !(~p3_new == ~nomsg)) || (((((~mode2 <= 1 && ~r1 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && 1 <= assert_~arg) && !(~p3_old == ~nomsg)) - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: (((((((~r1 <= 0 && !(0 == main_~c1~109)) && 1 <= check_~tmp~102) && ~mode2 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && 1 <= assert_~arg) && !(~p3_old == ~nomsg)) || (((~r1 <= 0 && 512 <= ~mode3) && ~mode1 + 257 <= 0) && 256 <= ~mode4) - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && ~mode2 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && !(~p3_new == ~nomsg) - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: (((((~r1 <= 0 && !(0 == main_~c1~109)) && 1 <= check_~tmp~102) && ~mode2 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && !(~p3_old == ~nomsg) - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: ((((((~r1 <= 0 && !(0 == main_~c1~109)) && 1 <= check_~tmp~102) && ~mode2 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && 1 <= assert_#in~arg) && !(~p3_old == ~nomsg) - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && 512 <= ~mode3) && 256 <= ~mode4) && ~mode2 <= 1) || (((((~mode2 <= 1 && ~r1 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && 1 <= assert_~arg) && !(~p3_old == ~nomsg)) - InvariantResult [Line: 258]: Loop Invariant Derived loop invariant: (((((~mode2 <= 1 && ~r1 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && 1 <= assert_~arg) && !(~p3_old == ~nomsg)) || ((~r1 <= 0 && 512 <= ~mode3) && 256 <= ~mode4) - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((~r1 <= 0 && 256 <= ~mode4) && ~mode2 <= 1) && ~mode3 <= 1) && !(~p3_new == ~nomsg)) || (((((~mode2 <= 1 && ~r1 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && 1 <= assert_~arg) && !(~p3_old == ~nomsg)) - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: (((~r1 <= 0 && 512 <= ~mode3) && 256 <= ~mode4) && ~mode2 <= 1) || (((((~mode2 <= 1 && ~r1 <= 1) && ~mode3 <= 1) && ~mode4 <= 1) && 1 <= assert_~arg) && !(~p3_old == ~nomsg)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. SAFE Result, 5.1s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 1.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 249 SDtfs, 168 SDslu, 232 SDs, 0 SdLazy, 94 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 68 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 43 NumberOfFragments, 428 HoareAnnotationTreeSize, 15 FomulaSimplifications, 553 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 192 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 277 ConstructedInterpolants, 0 QuantifiedInterpolants, 15110 SizeOfPredicates, 1 NumberOfNonLiveVariables, 284 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 130/140 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_21-17-24-553.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c_10.bplTransformedIcfg_BEv2_25.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_21-17-24-553.csv Received shutdown request...