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/20170304-DifficultPathPrograms/sum03.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b2fde6a [2018-09-28 10:10:10,861 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-28 10:10:10,863 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-28 10:10:10,879 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-28 10:10:10,879 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-28 10:10:10,880 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-28 10:10:10,882 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-28 10:10:10,883 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-28 10:10:10,885 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-28 10:10:10,886 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-28 10:10:10,887 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-28 10:10:10,926 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 [2018-09-28 10:10:10,951 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-28 10:10:10,952 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-28 10:10:10,953 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-28 10:10:10,953 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-28 10:10:10,954 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-28 10:10:10,954 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-28 10:10:10,954 INFO L133 SettingsManager]: * Use SBE=true [2018-09-28 10:10:10,954 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-28 10:10:10,955 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-28 10:10:10,955 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-28 10:10:10,955 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-28 10:10:10,955 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-28 10:10:10,955 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-28 10:10:10,956 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-28 10:10:10,956 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-28 10:10:10,956 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-28 10:10:10,956 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-28 10:10:10,957 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-28 10:10:10,958 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-28 10:10:10,958 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-28 10:10:10,958 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-28 10:10:10,958 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-28 10:10:10,958 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-28 10:10:10,959 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-28 10:10:10,959 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-28 10:10:10,959 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-28 10:10:10,959 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-28 10:10:10,959 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-28 10:10:10,960 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-28 10:10:10,960 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-28 10:10:11,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-28 10:10:11,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-28 10:10:11,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-28 10:10:11,054 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-28 10:10:11,055 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-28 10:10:11,056 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum03.i_3.bpl [2018-09-28 10:10:11,056 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum03.i_3.bpl' [2018-09-28 10:10:11,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-28 10:10:11,110 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-28 10:10:11,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-28 10:10:11,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-28 10:10:11,111 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-28 10:10:11,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:10:11" (1/1) ... [2018-09-28 10:10:11,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:10:11" (1/1) ... [2018-09-28 10:10:11,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-28 10:10:11,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-28 10:10:11,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-28 10:10:11,158 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-28 10:10:11,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:10:11" (1/1) ... [2018-09-28 10:10:11,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:10:11" (1/1) ... [2018-09-28 10:10:11,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:10:11" (1/1) ... [2018-09-28 10:10:11,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:10:11" (1/1) ... [2018-09-28 10:10:11,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:10:11" (1/1) ... [2018-09-28 10:10:11,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:10:11" (1/1) ... [2018-09-28 10:10:11,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:10:11" (1/1) ... [2018-09-28 10:10:11,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-28 10:10:11,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-28 10:10:11,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-28 10:10:11,179 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-28 10:10:11,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:10:11" (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 [2018-09-28 10:10:11,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-28 10:10:11,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-28 10:10:11,416 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-28 10:10:11,417 INFO L202 PluginConnector]: Adding new model sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 10:10:11 BoogieIcfgContainer [2018-09-28 10:10:11,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-28 10:10:11,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-28 10:10:11,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-28 10:10:11,421 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-28 10:10:11,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 10:10:11" (1/2) ... [2018-09-28 10:10:11,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669c5dc8 and model type sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.09 10:10:11, skipping insertion in model container [2018-09-28 10:10:11,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 10:10:11" (2/2) ... [2018-09-28 10:10:11,425 INFO L112 eAbstractionObserver]: Analyzing ICFG sum03.i_3.bpl [2018-09-28 10:10:11,433 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-28 10:10:11,441 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-28 10:10:11,489 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-28 10:10:11,490 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-28 10:10:11,490 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-28 10:10:11,490 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-28 10:10:11,490 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-28 10:10:11,491 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-28 10:10:11,491 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-28 10:10:11,491 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-28 10:10:11,491 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-28 10:10:11,506 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2018-09-28 10:10:11,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-28 10:10:11,512 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:10:11,513 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-09-28 10:10:11,515 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:10:11,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:10:11,521 INFO L82 PathProgramCache]: Analyzing trace with hash 889539531, now seen corresponding path program 1 times [2018-09-28 10:10:11,524 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:10:11,524 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:10:11,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:11,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:10:11,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:11,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:11,943 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:10:11,943 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-28 10:10:11,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-28 10:10:11,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-28 10:10:11,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-28 10:10:11,962 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 5 states. [2018-09-28 10:10:12,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:10:12,195 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2018-09-28 10:10:12,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-28 10:10:12,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-09-28 10:10:12,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:10:12,209 INFO L225 Difference]: With dead ends: 20 [2018-09-28 10:10:12,209 INFO L226 Difference]: Without dead ends: 16 [2018-09-28 10:10:12,213 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-09-28 10:10:12,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-28 10:10:12,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2018-09-28 10:10:12,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-28 10:10:12,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-09-28 10:10:12,250 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2018-09-28 10:10:12,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:10:12,251 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-09-28 10:10:12,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-28 10:10:12,251 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-09-28 10:10:12,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-28 10:10:12,251 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:10:12,251 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-09-28 10:10:12,252 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:10:12,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:10:12,252 INFO L82 PathProgramCache]: Analyzing trace with hash 889599113, now seen corresponding path program 1 times [2018-09-28 10:10:12,252 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:10:12,252 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:10:12,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:12,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:10:12,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:12,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:12,297 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-28 10:10:12,297 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-28 10:10:12,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-28 10:10:12,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-28 10:10:12,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-28 10:10:12,302 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 4 states. [2018-09-28 10:10:12,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:10:12,431 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2018-09-28 10:10:12,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-28 10:10:12,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-09-28 10:10:12,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:10:12,433 INFO L225 Difference]: With dead ends: 21 [2018-09-28 10:10:12,433 INFO L226 Difference]: Without dead ends: 19 [2018-09-28 10:10:12,434 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-28 10:10:12,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-09-28 10:10:12,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-09-28 10:10:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-28 10:10:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2018-09-28 10:10:12,442 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 6 [2018-09-28 10:10:12,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:10:12,443 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2018-09-28 10:10:12,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-28 10:10:12,443 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2018-09-28 10:10:12,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 10:10:12,444 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:10:12,444 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-09-28 10:10:12,444 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:10:12,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:10:12,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1495298495, now seen corresponding path program 1 times [2018-09-28 10:10:12,445 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:10:12,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:10:12,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:12,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:10:12,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:12,533 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-28 10:10:12,534 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 [2018-09-28 10:10:12,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:10:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:12,589 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-28 10:10:12,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:12,653 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-28 10:10:12,653 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-09-28 10:10:12,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-28 10:10:12,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-28 10:10:12,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-28 10:10:12,655 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2018-09-28 10:10:12,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:10:12,729 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2018-09-28 10:10:12,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-28 10:10:12,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-09-28 10:10:12,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:10:12,730 INFO L225 Difference]: With dead ends: 28 [2018-09-28 10:10:12,730 INFO L226 Difference]: Without dead ends: 18 [2018-09-28 10:10:12,731 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-28 10:10:12,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-09-28 10:10:12,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-09-28 10:10:12,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-09-28 10:10:12,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-09-28 10:10:12,739 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2018-09-28 10:10:12,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:10:12,740 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-09-28 10:10:12,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-28 10:10:12,740 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-09-28 10:10:12,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 10:10:12,741 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:10:12,741 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1] [2018-09-28 10:10:12,742 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:10:12,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:10:12,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1053631477, now seen corresponding path program 2 times [2018-09-28 10:10:12,743 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:10:12,743 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:10:12,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:12,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:10:12,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:12,963 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-28 10:10:12,964 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-28 10:10:12,978 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-28 10:10:13,025 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-28 10:10:13,025 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-28 10:10:13,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-28 10:10:13,091 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:13,113 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-28 10:10:13,114 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-09-28 10:10:13,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-28 10:10:13,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-28 10:10:13,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-28 10:10:13,115 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 5 states. [2018-09-28 10:10:13,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:10:13,245 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2018-09-28 10:10:13,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-28 10:10:13,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-09-28 10:10:13,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:10:13,248 INFO L225 Difference]: With dead ends: 28 [2018-09-28 10:10:13,248 INFO L226 Difference]: Without dead ends: 22 [2018-09-28 10:10:13,249 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-28 10:10:13,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-09-28 10:10:13,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2018-09-28 10:10:13,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-09-28 10:10:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-09-28 10:10:13,258 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 14 [2018-09-28 10:10:13,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:10:13,259 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-09-28 10:10:13,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-28 10:10:13,259 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-09-28 10:10:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-28 10:10:13,260 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:10:13,260 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1] [2018-09-28 10:10:13,261 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:10:13,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:10:13,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1036634923, now seen corresponding path program 3 times [2018-09-28 10:10:13,261 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:10:13,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:10:13,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:13,263 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-28 10:10:13,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:13,555 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:13,555 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-28 10:10:13,555 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-28 10:10:13,564 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-28 10:10:14,276 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-09-28 10:10:14,276 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-28 10:10:14,280 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-28 10:10:14,307 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:14,332 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-28 10:10:14,332 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-09-28 10:10:14,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-28 10:10:14,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-28 10:10:14,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-28 10:10:14,333 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 6 states. [2018-09-28 10:10:14,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:10:14,563 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-09-28 10:10:14,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-28 10:10:14,563 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-09-28 10:10:14,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:10:14,564 INFO L225 Difference]: With dead ends: 32 [2018-09-28 10:10:14,564 INFO L226 Difference]: Without dead ends: 26 [2018-09-28 10:10:14,565 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-28 10:10:14,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-09-28 10:10:14,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-09-28 10:10:14,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-09-28 10:10:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-09-28 10:10:14,573 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 18 [2018-09-28 10:10:14,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:10:14,573 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-09-28 10:10:14,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-28 10:10:14,574 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-09-28 10:10:14,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-28 10:10:14,575 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:10:14,576 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2018-09-28 10:10:14,576 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:10:14,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:10:14,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1827412127, now seen corresponding path program 4 times [2018-09-28 10:10:14,578 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:10:14,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:10:14,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:14,579 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-28 10:10:14,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:14,757 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:14,758 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-28 10:10:14,758 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-28 10:10:14,776 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-28 10:10:14,803 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-28 10:10:14,804 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-28 10:10:14,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-28 10:10:14,837 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:14,872 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-28 10:10:14,872 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-09-28 10:10:14,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-28 10:10:14,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-28 10:10:14,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-28 10:10:14,874 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 7 states. [2018-09-28 10:10:15,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:10:15,302 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-09-28 10:10:15,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-28 10:10:15,304 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-09-28 10:10:15,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:10:15,306 INFO L225 Difference]: With dead ends: 36 [2018-09-28 10:10:15,306 INFO L226 Difference]: Without dead ends: 30 [2018-09-28 10:10:15,307 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-28 10:10:15,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-09-28 10:10:15,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2018-09-28 10:10:15,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-09-28 10:10:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2018-09-28 10:10:15,315 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2018-09-28 10:10:15,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:10:15,316 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2018-09-28 10:10:15,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-28 10:10:15,316 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-09-28 10:10:15,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-28 10:10:15,317 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:10:15,317 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 1, 1, 1, 1] [2018-09-28 10:10:15,317 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:10:15,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:10:15,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1058473833, now seen corresponding path program 5 times [2018-09-28 10:10:15,318 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:10:15,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:10:15,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:15,319 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-28 10:10:15,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:15,507 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:15,508 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-28 10:10:15,508 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-28 10:10:15,516 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-28 10:10:15,621 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-09-28 10:10:15,621 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-28 10:10:15,624 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-28 10:10:15,666 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:15,687 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-28 10:10:15,688 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-09-28 10:10:15,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-28 10:10:15,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-28 10:10:15,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-28 10:10:15,689 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 8 states. [2018-09-28 10:10:15,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:10:15,879 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2018-09-28 10:10:15,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-28 10:10:15,880 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-09-28 10:10:15,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:10:15,881 INFO L225 Difference]: With dead ends: 40 [2018-09-28 10:10:15,881 INFO L226 Difference]: Without dead ends: 34 [2018-09-28 10:10:15,882 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-28 10:10:15,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-09-28 10:10:15,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-09-28 10:10:15,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-09-28 10:10:15,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-09-28 10:10:15,892 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 26 [2018-09-28 10:10:15,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:10:15,892 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-09-28 10:10:15,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-28 10:10:15,893 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-09-28 10:10:15,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-28 10:10:15,893 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:10:15,894 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 1, 1, 1, 1] [2018-09-28 10:10:15,894 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:10:15,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:10:15,894 INFO L82 PathProgramCache]: Analyzing trace with hash -288981299, now seen corresponding path program 6 times [2018-09-28 10:10:15,894 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:10:15,894 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:10:15,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:15,895 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-28 10:10:15,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:16,259 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:16,259 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-28 10:10:16,259 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-28 10:10:16,268 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-09-28 10:10:17,017 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2018-09-28 10:10:17,017 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-28 10:10:17,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-28 10:10:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:17,564 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-28 10:10:17,564 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 18 [2018-09-28 10:10:17,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-28 10:10:17,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-28 10:10:17,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2018-09-28 10:10:17,565 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 19 states. [2018-09-28 10:10:18,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:10:18,303 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-09-28 10:10:18,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-28 10:10:18,304 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 30 [2018-09-28 10:10:18,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:10:18,305 INFO L225 Difference]: With dead ends: 44 [2018-09-28 10:10:18,305 INFO L226 Difference]: Without dead ends: 38 [2018-09-28 10:10:18,307 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2018-09-28 10:10:18,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-09-28 10:10:18,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2018-09-28 10:10:18,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-09-28 10:10:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2018-09-28 10:10:18,320 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 30 [2018-09-28 10:10:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:10:18,321 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2018-09-28 10:10:18,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-28 10:10:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2018-09-28 10:10:18,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-28 10:10:18,322 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:10:18,322 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 1, 1, 1, 1] [2018-09-28 10:10:18,323 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:10:18,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:10:18,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1231682051, now seen corresponding path program 7 times [2018-09-28 10:10:18,323 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:10:18,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:10:18,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:18,325 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-28 10:10:18,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:18,643 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:18,643 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-28 10:10:18,644 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-28 10:10:18,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:10:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:18,690 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-28 10:10:18,702 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:18,723 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-28 10:10:18,723 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-09-28 10:10:18,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-28 10:10:18,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-28 10:10:18,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-28 10:10:18,725 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 10 states. [2018-09-28 10:10:19,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:10:19,354 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-09-28 10:10:19,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-28 10:10:19,354 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-09-28 10:10:19,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:10:19,355 INFO L225 Difference]: With dead ends: 48 [2018-09-28 10:10:19,356 INFO L226 Difference]: Without dead ends: 42 [2018-09-28 10:10:19,356 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-28 10:10:19,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-09-28 10:10:19,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2018-09-28 10:10:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-09-28 10:10:19,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-09-28 10:10:19,374 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 34 [2018-09-28 10:10:19,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:10:19,374 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-09-28 10:10:19,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-28 10:10:19,375 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-09-28 10:10:19,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-28 10:10:19,376 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:10:19,377 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 1, 1, 1, 1] [2018-09-28 10:10:19,377 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:10:19,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:10:19,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1657858617, now seen corresponding path program 8 times [2018-09-28 10:10:19,379 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:10:19,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:10:19,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:19,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-28 10:10:19,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:19,994 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:19,994 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-28 10:10:19,995 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-28 10:10:20,005 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-28 10:10:20,058 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-28 10:10:20,058 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-28 10:10:20,061 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-28 10:10:20,135 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:20,171 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-28 10:10:20,172 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-09-28 10:10:20,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-28 10:10:20,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-28 10:10:20,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-28 10:10:20,174 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 11 states. [2018-09-28 10:10:20,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:10:20,568 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2018-09-28 10:10:20,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-28 10:10:20,568 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2018-09-28 10:10:20,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:10:20,569 INFO L225 Difference]: With dead ends: 52 [2018-09-28 10:10:20,569 INFO L226 Difference]: Without dead ends: 46 [2018-09-28 10:10:20,570 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-28 10:10:20,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-09-28 10:10:20,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2018-09-28 10:10:20,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-09-28 10:10:20,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2018-09-28 10:10:20,584 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 38 [2018-09-28 10:10:20,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:10:20,584 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2018-09-28 10:10:20,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-28 10:10:20,585 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2018-09-28 10:10:20,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-28 10:10:20,586 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:10:20,586 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 1, 1, 1, 1] [2018-09-28 10:10:20,586 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:10:20,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:10:20,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1841770641, now seen corresponding path program 9 times [2018-09-28 10:10:20,587 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:10:20,587 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:10:20,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:20,588 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-28 10:10:20,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:10:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 10:10:20,959 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:10:20,959 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-28 10:10:20,959 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-28 10:10:20,967 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-28 10:11:22,607 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-09-28 10:11:22,607 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-28 10:11:22,640 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-28 10:11:22,674 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 10:11:22,696 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-28 10:11:22,696 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-09-28 10:11:22,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-28 10:11:22,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-28 10:11:22,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-09-28 10:11:22,697 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 12 states. [2018-09-28 10:11:23,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-28 10:11:23,035 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2018-09-28 10:11:23,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-28 10:11:23,035 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-09-28 10:11:23,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-28 10:11:23,037 INFO L225 Difference]: With dead ends: 56 [2018-09-28 10:11:23,037 INFO L226 Difference]: Without dead ends: 50 [2018-09-28 10:11:23,038 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-09-28 10:11:23,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-09-28 10:11:23,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2018-09-28 10:11:23,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-09-28 10:11:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2018-09-28 10:11:23,050 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 42 [2018-09-28 10:11:23,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-28 10:11:23,051 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2018-09-28 10:11:23,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-28 10:11:23,051 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2018-09-28 10:11:23,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-28 10:11:23,052 INFO L367 BasicCegarLoop]: Found error trace [2018-09-28 10:11:23,052 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 1, 1, 1, 1] [2018-09-28 10:11:23,052 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-28 10:11:23,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-28 10:11:23,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1411328421, now seen corresponding path program 10 times [2018-09-28 10:11:23,053 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-28 10:11:23,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-28 10:11:23,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:11:23,054 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-28 10:11:23,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-28 10:11:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-28 10:11:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-28 10:11:23,165 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-09-28 10:11:23,210 INFO L202 PluginConnector]: Adding new model sum03.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.09 10:11:23 BoogieIcfgContainer [2018-09-28 10:11:23,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-28 10:11:23,211 INFO L168 Benchmark]: Toolchain (without parser) took 72104.17 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 23.1 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 37.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. [2018-09-28 10:11:23,215 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-09-28 10:11:23,216 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.99 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. [2018-09-28 10:11:23,217 INFO L168 Benchmark]: Boogie Preprocessor took 20.02 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. [2018-09-28 10:11:23,218 INFO L168 Benchmark]: RCFGBuilder took 238.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-28 10:11:23,219 INFO L168 Benchmark]: TraceAbstraction took 71792.15 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 23.1 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 16.3 MB). Peak memory consumption was 39.4 MB. Max. memory is 7.1 GB. [2018-09-28 10:11:23,224 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 0.21 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. * Boogie Procedure Inliner took 46.99 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 20.02 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 238.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 71792.15 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 23.1 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 16.3 MB). Peak memory consumption was 39.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 54]: assertion can be violated assertion can be violated We found a FailurePath: [L14] havoc main_#res; [L15] havoc main_#t~nondet0, main_#t~nondet1, main_#t~post2, main_~sn~5, main_~loop1~5, main_~n1~5, main_~x~5; [L16] main_~sn~5 := 0; [L17] main_~loop1~5 := main_#t~nondet0; [L18] havoc main_#t~nondet0; [L19] main_~n1~5 := main_#t~nondet1; [L20] havoc main_#t~nondet1; [L21] main_~x~5 := 0; VAL [main_~sn~5=0, main_~x~5=0] [L24] assume true; [L25] assume !false; VAL [main_~sn~5=0, main_~x~5=0] [L30] assume main_~x~5 % 4294967296 < 10; [L31] main_~sn~5 := main_~sn~5 + 2; VAL [main_~sn~5=2, main_~x~5=0] [L37] main_#t~post2 := main_~x~5; [L38] main_~x~5 := main_#t~post2 + 1; [L39] havoc main_#t~post2; [L40] __VERIFIER_assert_#in~cond := (if main_~sn~5 % 4294967296 == main_~x~5 * 2 % 4294967296 || main_~sn~5 == 0 then 1 else 0); [L41] havoc __VERIFIER_assert_~cond; [L42] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=2, main_~x~5=1] [L51] assume !(__VERIFIER_assert_~cond == 0); VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=2, main_~x~5=1] [L24] assume true; [L25] assume !false; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=2, main_~x~5=1] [L30] assume main_~x~5 % 4294967296 < 10; [L31] main_~sn~5 := main_~sn~5 + 2; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=4, main_~x~5=1] [L37] main_#t~post2 := main_~x~5; [L38] main_~x~5 := main_#t~post2 + 1; [L39] havoc main_#t~post2; [L40] __VERIFIER_assert_#in~cond := (if main_~sn~5 % 4294967296 == main_~x~5 * 2 % 4294967296 || main_~sn~5 == 0 then 1 else 0); [L41] havoc __VERIFIER_assert_~cond; [L42] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=4, main_~x~5=2] [L51] assume !(__VERIFIER_assert_~cond == 0); VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=4, main_~x~5=2] [L24] assume true; [L25] assume !false; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=4, main_~x~5=2] [L30] assume main_~x~5 % 4294967296 < 10; [L31] main_~sn~5 := main_~sn~5 + 2; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=6, main_~x~5=2] [L37] main_#t~post2 := main_~x~5; [L38] main_~x~5 := main_#t~post2 + 1; [L39] havoc main_#t~post2; [L40] __VERIFIER_assert_#in~cond := (if main_~sn~5 % 4294967296 == main_~x~5 * 2 % 4294967296 || main_~sn~5 == 0 then 1 else 0); [L41] havoc __VERIFIER_assert_~cond; [L42] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=6, main_~x~5=3] [L51] assume !(__VERIFIER_assert_~cond == 0); VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=6, main_~x~5=3] [L24] assume true; [L25] assume !false; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=6, main_~x~5=3] [L30] assume main_~x~5 % 4294967296 < 10; [L31] main_~sn~5 := main_~sn~5 + 2; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=8, main_~x~5=3] [L37] main_#t~post2 := main_~x~5; [L38] main_~x~5 := main_#t~post2 + 1; [L39] havoc main_#t~post2; [L40] __VERIFIER_assert_#in~cond := (if main_~sn~5 % 4294967296 == main_~x~5 * 2 % 4294967296 || main_~sn~5 == 0 then 1 else 0); [L41] havoc __VERIFIER_assert_~cond; [L42] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=8, main_~x~5=4] [L51] assume !(__VERIFIER_assert_~cond == 0); VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=8, main_~x~5=4] [L24] assume true; [L25] assume !false; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=8, main_~x~5=4] [L30] assume main_~x~5 % 4294967296 < 10; [L31] main_~sn~5 := main_~sn~5 + 2; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=10, main_~x~5=4] [L37] main_#t~post2 := main_~x~5; [L38] main_~x~5 := main_#t~post2 + 1; [L39] havoc main_#t~post2; [L40] __VERIFIER_assert_#in~cond := (if main_~sn~5 % 4294967296 == main_~x~5 * 2 % 4294967296 || main_~sn~5 == 0 then 1 else 0); [L41] havoc __VERIFIER_assert_~cond; [L42] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=10, main_~x~5=5] [L51] assume !(__VERIFIER_assert_~cond == 0); VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=10, main_~x~5=5] [L24] assume true; [L25] assume !false; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=10, main_~x~5=5] [L30] assume main_~x~5 % 4294967296 < 10; [L31] main_~sn~5 := main_~sn~5 + 2; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=12, main_~x~5=5] [L37] main_#t~post2 := main_~x~5; [L38] main_~x~5 := main_#t~post2 + 1; [L39] havoc main_#t~post2; [L40] __VERIFIER_assert_#in~cond := (if main_~sn~5 % 4294967296 == main_~x~5 * 2 % 4294967296 || main_~sn~5 == 0 then 1 else 0); [L41] havoc __VERIFIER_assert_~cond; [L42] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=12, main_~x~5=6] [L51] assume !(__VERIFIER_assert_~cond == 0); VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=12, main_~x~5=6] [L24] assume true; [L25] assume !false; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=12, main_~x~5=6] [L30] assume main_~x~5 % 4294967296 < 10; [L31] main_~sn~5 := main_~sn~5 + 2; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=14, main_~x~5=6] [L37] main_#t~post2 := main_~x~5; [L38] main_~x~5 := main_#t~post2 + 1; [L39] havoc main_#t~post2; [L40] __VERIFIER_assert_#in~cond := (if main_~sn~5 % 4294967296 == main_~x~5 * 2 % 4294967296 || main_~sn~5 == 0 then 1 else 0); [L41] havoc __VERIFIER_assert_~cond; [L42] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=14, main_~x~5=7] [L51] assume !(__VERIFIER_assert_~cond == 0); VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=14, main_~x~5=7] [L24] assume true; [L25] assume !false; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=14, main_~x~5=7] [L30] assume main_~x~5 % 4294967296 < 10; [L31] main_~sn~5 := main_~sn~5 + 2; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=16, main_~x~5=7] [L37] main_#t~post2 := main_~x~5; [L38] main_~x~5 := main_#t~post2 + 1; [L39] havoc main_#t~post2; [L40] __VERIFIER_assert_#in~cond := (if main_~sn~5 % 4294967296 == main_~x~5 * 2 % 4294967296 || main_~sn~5 == 0 then 1 else 0); [L41] havoc __VERIFIER_assert_~cond; [L42] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=16, main_~x~5=8] [L51] assume !(__VERIFIER_assert_~cond == 0); VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=16, main_~x~5=8] [L24] assume true; [L25] assume !false; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=16, main_~x~5=8] [L30] assume main_~x~5 % 4294967296 < 10; [L31] main_~sn~5 := main_~sn~5 + 2; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=18, main_~x~5=8] [L37] main_#t~post2 := main_~x~5; [L38] main_~x~5 := main_#t~post2 + 1; [L39] havoc main_#t~post2; [L40] __VERIFIER_assert_#in~cond := (if main_~sn~5 % 4294967296 == main_~x~5 * 2 % 4294967296 || main_~sn~5 == 0 then 1 else 0); [L41] havoc __VERIFIER_assert_~cond; [L42] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=18, main_~x~5=9] [L51] assume !(__VERIFIER_assert_~cond == 0); VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=18, main_~x~5=9] [L24] assume true; [L25] assume !false; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=18, main_~x~5=9] [L30] assume main_~x~5 % 4294967296 < 10; [L31] main_~sn~5 := main_~sn~5 + 2; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=20, main_~x~5=9] [L37] main_#t~post2 := main_~x~5; [L38] main_~x~5 := main_#t~post2 + 1; [L39] havoc main_#t~post2; [L40] __VERIFIER_assert_#in~cond := (if main_~sn~5 % 4294967296 == main_~x~5 * 2 % 4294967296 || main_~sn~5 == 0 then 1 else 0); [L41] havoc __VERIFIER_assert_~cond; [L42] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=20, main_~x~5=10] [L51] assume !(__VERIFIER_assert_~cond == 0); VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=20, main_~x~5=10] [L24] assume true; [L25] assume !false; VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=20, main_~x~5=10] [L34] assume !(main_~x~5 % 4294967296 < 10); VAL [__VERIFIER_assert_#in~cond=1, __VERIFIER_assert_~cond=1, main_~sn~5=20, main_~x~5=10] [L37] main_#t~post2 := main_~x~5; [L38] main_~x~5 := main_#t~post2 + 1; [L39] havoc main_#t~post2; [L40] __VERIFIER_assert_#in~cond := (if main_~sn~5 % 4294967296 == main_~x~5 * 2 % 4294967296 || main_~sn~5 == 0 then 1 else 0); [L41] havoc __VERIFIER_assert_~cond; [L42] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~sn~5=20, main_~x~5=11] [L47] assume __VERIFIER_assert_~cond == 0; [L48] assume !false; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~sn~5=20, main_~x~5=11] [L54] assert false; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~sn~5=20, main_~x~5=11] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. UNSAFE Result, 71.7s OverallTime, 12 OverallIterations, 11 TraceHistogramMax, 3.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 149 SDtfs, 25 SDslu, 848 SDs, 0 SdLazy, 1061 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 315 GetRequests, 216 SyntacticMatches, 19 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=11, 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, 11 MinimizatonAttempts, 16 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 63.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 526 NumberOfCodeBlocks, 522 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 460 ConstructedInterpolants, 0 QuantifiedInterpolants, 86941 SizeOfPredicates, 12 NumberOfNonLiveVariables, 637 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 180/1320 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum03.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-28_10-11-23-247.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum03.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-28_10-11-23-247.csv Received shutdown request...