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/jain_4.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 12:24:23,968 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 12:24:23,970 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 12:24:23,984 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 12:24:23,984 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 12:24:23,985 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 12:24:23,986 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 12:24:23,988 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 12:24:23,990 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 12:24:23,990 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 12:24:23,991 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-04 12:24:24,016 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 [2018-10-04 12:24:24,031 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 12:24:24,032 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 12:24:24,032 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 12:24:24,033 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 12:24:24,033 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 12:24:24,033 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 12:24:24,034 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 12:24:24,034 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 12:24:24,034 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 12:24:24,034 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 12:24:24,034 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 12:24:24,035 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 12:24:24,036 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 12:24:24,036 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 12:24:24,036 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 12:24:24,036 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 12:24:24,036 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 12:24:24,037 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 12:24:24,038 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 12:24:24,038 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 12:24:24,038 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 12:24:24,039 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 12:24:24,039 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 12:24:24,039 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 12:24:24,039 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 12:24:24,039 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 12:24:24,040 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 12:24:24,040 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 12:24:24,040 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 12:24:24,040 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 12:24:24,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 12:24:24,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 12:24:24,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 12:24:24,119 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 12:24:24,120 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 12:24:24,121 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_4.i_2.bpl [2018-10-04 12:24:24,121 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_4.i_2.bpl' [2018-10-04 12:24:24,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 12:24:24,171 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 12:24:24,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 12:24:24,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 12:24:24,172 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 12:24:24,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:24:24" (1/1) ... [2018-10-04 12:24:24,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:24:24" (1/1) ... [2018-10-04 12:24:24,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 12:24:24,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 12:24:24,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 12:24:24,213 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 12:24:24,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:24:24" (1/1) ... [2018-10-04 12:24:24,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:24:24" (1/1) ... [2018-10-04 12:24:24,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:24:24" (1/1) ... [2018-10-04 12:24:24,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:24:24" (1/1) ... [2018-10-04 12:24:24,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:24:24" (1/1) ... [2018-10-04 12:24:24,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:24:24" (1/1) ... [2018-10-04 12:24:24,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:24:24" (1/1) ... [2018-10-04 12:24:24,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 12:24:24,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 12:24:24,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 12:24:24,233 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 12:24:24,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:24:24" (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 [2018-10-04 12:24:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 12:24:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 12:24:24,538 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 12:24:24,538 INFO L202 PluginConnector]: Adding new model jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:24:24 BoogieIcfgContainer [2018-10-04 12:24:24,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 12:24:24,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 12:24:24,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 12:24:24,545 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 12:24:24,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:24:24" (1/2) ... [2018-10-04 12:24:24,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c636599 and model type jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 12:24:24, skipping insertion in model container [2018-10-04 12:24:24,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:24:24" (2/2) ... [2018-10-04 12:24:24,550 INFO L112 eAbstractionObserver]: Analyzing ICFG jain_4.i_2.bpl [2018-10-04 12:24:24,559 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 12:24:24,568 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 12:24:24,611 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 12:24:24,611 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 12:24:24,611 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 12:24:24,612 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 12:24:24,612 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 12:24:24,612 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 12:24:24,612 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 12:24:24,612 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 12:24:24,613 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 12:24:24,626 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-10-04 12:24:24,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 12:24:24,632 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:24:24,633 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-04 12:24:24,634 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:24:24,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:24:24,642 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2018-10-04 12:24:24,645 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:24:24,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:24:24,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:24:24,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:24:24,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:24:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:24:24,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:24:24,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 12:24:24,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-04 12:24:24,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-04 12:24:24,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-04 12:24:24,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-04 12:24:24,941 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2018-10-04 12:24:25,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:24:25,040 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-10-04 12:24:25,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-04 12:24:25,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-10-04 12:24:25,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:24:25,052 INFO L225 Difference]: With dead ends: 12 [2018-10-04 12:24:25,053 INFO L226 Difference]: Without dead ends: 8 [2018-10-04 12:24:25,056 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-04 12:24:25,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-10-04 12:24:25,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-10-04 12:24:25,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-04 12:24:25,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-04 12:24:25,090 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-10-04 12:24:25,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:24:25,090 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-10-04 12:24:25,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-04 12:24:25,091 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-04 12:24:25,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 12:24:25,091 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:24:25,091 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-10-04 12:24:25,092 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:24:25,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:24:25,092 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2018-10-04 12:24:25,092 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:24:25,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:24:25,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:24:25,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:24:25,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:24:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:24:25,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:24:25,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:24:25,303 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 [2018-10-04 12:24:25,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:24:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:24:25,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:24:25,696 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-04 12:24:50,259 WARN L178 SmtUtils]: Spent 18.19 s on a formula simplification that was a NOOP. DAG size: 30 [2018-10-04 12:24:58,593 WARN L178 SmtUtils]: Spent 6.10 s on a formula simplification that was a NOOP. DAG size: 24 [2018-10-04 12:25:02,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:25:02,740 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:25:02,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2018-10-04 12:25:02,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-04 12:25:02,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-04 12:25:02,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=61, Unknown=5, NotChecked=0, Total=90 [2018-10-04 12:25:02,742 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 10 states. [2018-10-04 12:25:11,643 WARN L178 SmtUtils]: Spent 6.78 s on a formula simplification. DAG size of input: 38 DAG size of output: 24 [2018-10-04 12:25:13,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:25:13,695 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-10-04 12:25:13,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-04 12:25:13,696 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 6 [2018-10-04 12:25:13,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:25:13,696 INFO L225 Difference]: With dead ends: 12 [2018-10-04 12:25:13,697 INFO L226 Difference]: Without dead ends: 10 [2018-10-04 12:25:13,698 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 42.0s TimeCoverageRelationStatistics Valid=32, Invalid=73, Unknown=5, NotChecked=0, Total=110 [2018-10-04 12:25:13,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-10-04 12:25:13,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-10-04 12:25:13,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-04 12:25:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-04 12:25:13,703 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-10-04 12:25:13,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:25:13,703 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-04 12:25:13,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-04 12:25:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-04 12:25:13,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 12:25:13,704 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:25:13,705 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-10-04 12:25:13,705 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:25:13,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:25:13,706 INFO L82 PathProgramCache]: Analyzing trace with hash 141355773, now seen corresponding path program 2 times [2018-10-04 12:25:13,706 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:25:13,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:25:13,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:25:13,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:25:13,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:25:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:25:13,951 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-04 12:25:13,952 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:25:13,953 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 [2018-10-04 12:25:13,965 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 12:25:14,086 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-04 12:25:14,086 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:25:14,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:25:34,587 WARN L178 SmtUtils]: Spent 18.38 s on a formula simplification that was a NOOP. DAG size: 30 [2018-10-04 12:25:39,001 WARN L178 SmtUtils]: Spent 4.35 s on a formula simplification that was a NOOP. DAG size: 24 [2018-10-04 12:25:51,656 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:25:51,678 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:25:51,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2018-10-04 12:25:51,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-04 12:25:51,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-04 12:25:51,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=74, Unknown=6, NotChecked=0, Total=110 [2018-10-04 12:25:51,680 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 11 states. [2018-10-04 12:27:04,264 WARN L178 SmtUtils]: Spent 1.18 m on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2018-10-04 12:27:14,965 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 45 [2018-10-04 12:27:32,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:27:32,679 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-10-04 12:27:32,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-04 12:27:32,687 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 8 [2018-10-04 12:27:32,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:27:32,688 INFO L225 Difference]: With dead ends: 12 [2018-10-04 12:27:32,689 INFO L226 Difference]: Without dead ends: 0 [2018-10-04 12:27:32,690 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 126.2s TimeCoverageRelationStatistics Valid=63, Invalid=138, Unknown=9, NotChecked=0, Total=210 [2018-10-04 12:27:32,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-04 12:27:32,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-04 12:27:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-04 12:27:32,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-04 12:27:32,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-10-04 12:27:32,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:27:32,692 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-04 12:27:32,693 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-04 12:27:32,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-04 12:27:32,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-04 12:27:32,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-04 12:27:32,868 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2018-10-04 12:27:32,889 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 46) no Hoare annotation was computed. [2018-10-04 12:27:32,889 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 46) no Hoare annotation was computed. [2018-10-04 12:27:32,889 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 46) no Hoare annotation was computed. [2018-10-04 12:27:32,890 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 45) no Hoare annotation was computed. [2018-10-04 12:27:32,890 INFO L421 ceAbstractionStarter]: At program point L43(lines 43 44) the Hoare annotation is: false [2018-10-04 12:27:32,890 INFO L421 ceAbstractionStarter]: At program point L39(lines 21 39) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~z~5 ULTIMATE.start_main_~x~5))) (or (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= .cse0 (* 4 (div (+ ULTIMATE.start_main_~y~5 (+ ULTIMATE.start_main_~z~5 ULTIMATE.start_main_~x~5)) 4)))) (and (= ULTIMATE.start_main_~y~5 0) (<= 0 .cse0) (= ULTIMATE.start_main_~x~5 0) (<= .cse0 0)))) [2018-10-04 12:27:32,890 INFO L421 ceAbstractionStarter]: At program point L34(lines 34 40) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~z~5 ULTIMATE.start_main_~x~5) (* 4 (div (+ ULTIMATE.start_main_~y~5 (+ ULTIMATE.start_main_~z~5 ULTIMATE.start_main_~x~5)) 4)))) [2018-10-04 12:27:32,902 INFO L202 PluginConnector]: Adding new model jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 12:27:32 BoogieIcfgContainer [2018-10-04 12:27:32,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 12:27:32,903 INFO L168 Benchmark]: Toolchain (without parser) took 188732.58 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 171.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 7.1 GB. [2018-10-04 12:27:32,904 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 12:27:32,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.85 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 12:27:32,906 INFO L168 Benchmark]: Boogie Preprocessor took 19.95 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 12:27:32,906 INFO L168 Benchmark]: RCFGBuilder took 305.94 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 12:27:32,907 INFO L168 Benchmark]: TraceAbstraction took 188361.76 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 150.7 MB). Peak memory consumption was 150.7 MB. Max. memory is 7.1 GB. [2018-10-04 12:27:32,912 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 0.19 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.85 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 19.95 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 305.94 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 188361.76 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 150.7 MB). Peak memory consumption was 150.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 45]: 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: 43]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (!(0 == __VERIFIER_assert_~cond) && main_~y~5 + main_~z~5 + main_~x~5 <= 4 * ((main_~y~5 + (main_~z~5 + main_~x~5)) / 4)) || (((main_~y~5 == 0 && 0 <= main_~y~5 + main_~z~5 + main_~x~5) && main_~x~5 == 0) && main_~y~5 + main_~z~5 + main_~x~5 <= 0) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: !(0 == __VERIFIER_assert_~cond) && main_~y~5 + main_~z~5 + main_~x~5 <= 4 * ((main_~y~5 + (main_~z~5 + main_~x~5)) / 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 188.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 112.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 18 SDslu, 13 SDs, 0 SdLazy, 27 SolverSat, 6 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 14.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 168.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 59 HoareAnnotationTreeSize, 3 FomulaSimplifications, 449 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 26 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 75.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 6 QuantifiedInterpolants, 2801 SizeOfPredicates, 14 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/16 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/jain_4.i_2.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_12-27-32-925.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jain_4.i_2.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_12-27-32-925.csv Received shutdown request...