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_PUPT.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 21:50:41,816 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 21:50:41,818 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 21:50:41,838 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 21:50:41,838 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 21:50:41,840 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 21:50:41,842 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 21:50:41,845 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 21:50:41,848 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 21:50:41,849 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 21:50:41,852 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 21:50:41,880 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf [2018-09-26 21:50:41,907 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 21:50:41,908 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 21:50:41,910 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 21:50:41,910 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 21:50:41,911 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 21:50:41,911 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 21:50:41,911 INFO L133 SettingsManager]: * Use SBE=true [2018-09-26 21:50:41,912 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 21:50:41,912 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 21:50:41,912 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 21:50:41,912 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 21:50:41,912 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 21:50:41,913 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 21:50:41,913 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 21:50:41,913 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 21:50:41,913 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 21:50:41,915 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 21:50:41,915 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 21:50:41,915 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 21:50:41,915 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-26 21:50:41,916 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 21:50:41,916 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-26 21:50:41,916 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:50:41,916 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 21:50:41,917 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 21:50:41,917 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 21:50:41,917 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-26 21:50:41,917 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 21:50:41,918 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 21:50:41,918 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 21:50:41,918 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-26 21:50:41,984 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 21:50:41,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 21:50:42,005 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 21:50:42,007 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 21:50:42,007 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 21:50:42,008 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006.c.i_3.bpl [2018-09-26 21:50:42,008 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006.c.i_3.bpl' [2018-09-26 21:50:42,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 21:50:42,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 21:50:42,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 21:50:42,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 21:50:42,082 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 21:50:42,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:50:42" (1/1) ... [2018-09-26 21:50:42,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:50:42" (1/1) ... [2018-09-26 21:50:42,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 21:50:42,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 21:50:42,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 21:50:42,129 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 21:50:42,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:50:42" (1/1) ... [2018-09-26 21:50:42,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:50:42" (1/1) ... [2018-09-26 21:50:42,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:50:42" (1/1) ... [2018-09-26 21:50:42,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:50:42" (1/1) ... [2018-09-26 21:50:42,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:50:42" (1/1) ... [2018-09-26 21:50:42,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:50:42" (1/1) ... [2018-09-26 21:50:42,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:50:42" (1/1) ... [2018-09-26 21:50:42,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 21:50:42,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 21:50:42,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 21:50:42,153 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 21:50:42,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:50:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:50:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 21:50:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 21:50:42,465 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 21:50:42,466 INFO L202 PluginConnector]: Adding new model jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:50:42 BoogieIcfgContainer [2018-09-26 21:50:42,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 21:50:42,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 21:50:42,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 21:50:42,473 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 21:50:42,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:50:42" (1/2) ... [2018-09-26 21:50:42,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171b947d and model type jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:50:42, skipping insertion in model container [2018-09-26 21:50:42,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:50:42" (2/2) ... [2018-09-26 21:50:42,477 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006.c.i_3.bpl [2018-09-26 21:50:42,490 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-26 21:50:42,503 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 21:50:42,558 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 21:50:42,561 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 21:50:42,561 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 21:50:42,561 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-26 21:50:42,561 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 21:50:42,562 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 21:50:42,562 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 21:50:42,562 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 21:50:42,562 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 21:50:42,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-09-26 21:50:42,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 21:50:42,594 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:50:42,596 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 21:50:42,598 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:50:42,606 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:50:42,607 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-09-26 21:50:42,610 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:50:42,611 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:50:42,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:50:42,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:50:42,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:50:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:50:42,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:50:42,856 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:50:42,856 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:50:42,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:50:42,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:50:42,875 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:50:42,877 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-09-26 21:50:43,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:50:43,071 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-09-26 21:50:43,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:50:43,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 21:50:43,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:50:43,094 INFO L225 Difference]: With dead ends: 11 [2018-09-26 21:50:43,094 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 21:50:43,098 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:50:43,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 21:50:43,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 21:50:43,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 21:50:43,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 21:50:43,136 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 21:50:43,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:50:43,137 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 21:50:43,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:50:43,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 21:50:43,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 21:50:43,138 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:50:43,138 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 21:50:43,138 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:50:43,139 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:50:43,139 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-09-26 21:50:43,139 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:50:43,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:50:43,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:50:43,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:50:43,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:50:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:50:43,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:50:43,273 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:50:43,273 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 [2018-09-26 21:50:43,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:50:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:50:43,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:50:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:50:43,602 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:50:43,603 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2018-09-26 21:50:43,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 21:50:43,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 21:50:43,604 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:50:43,605 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-09-26 21:50:43,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:50:43,907 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-09-26 21:50:43,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 21:50:43,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-09-26 21:50:43,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:50:43,909 INFO L225 Difference]: With dead ends: 11 [2018-09-26 21:50:43,910 INFO L226 Difference]: Without dead ends: 9 [2018-09-26 21:50:43,911 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:50:43,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-09-26 21:50:43,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-09-26 21:50:43,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-26 21:50:43,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-09-26 21:50:43,920 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-09-26 21:50:43,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:50:43,920 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-09-26 21:50:43,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 21:50:43,921 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-09-26 21:50:43,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 21:50:43,921 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:50:43,922 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-09-26 21:50:43,924 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:50:43,924 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:50:43,925 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-09-26 21:50:43,925 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:50:43,925 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:50:43,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:50:43,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:50:43,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:50:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:50:44,179 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:50:44,180 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:50:44,180 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 [2018-09-26 21:50:44,198 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-26 21:50:44,229 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-26 21:50:44,229 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:50:44,232 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:50:44,469 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:50:44,494 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:50:44,494 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-09-26 21:50:44,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 21:50:44,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 21:50:44,495 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:50:44,495 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-09-26 21:50:44,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:50:44,732 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-09-26 21:50:44,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-26 21:50:44,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-09-26 21:50:44,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:50:44,736 INFO L225 Difference]: With dead ends: 15 [2018-09-26 21:50:44,736 INFO L226 Difference]: Without dead ends: 13 [2018-09-26 21:50:44,736 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:50:44,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-09-26 21:50:44,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-09-26 21:50:44,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-26 21:50:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-09-26 21:50:44,743 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2018-09-26 21:50:44,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:50:44,743 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-09-26 21:50:44,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 21:50:44,744 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-09-26 21:50:44,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 21:50:44,744 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:50:44,745 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2018-09-26 21:50:44,745 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:50:44,745 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-26 21:50:44,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1715646545, now seen corresponding path program 3 times [2018-09-26 21:50:44,746 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:50:44,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:50:44,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:50:44,747 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-26 21:50:44,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:50:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:50:44,875 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-26 21:50:44,876 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:50:44,876 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 [2018-09-26 21:50:44,886 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-26 21:50:44,903 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-09-26 21:50:44,904 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:50:44,906 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:50:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:50:45,101 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:50:45,102 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2018-09-26 21:50:45,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 21:50:45,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 21:50:45,103 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-26 21:50:45,103 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 9 states. [2018-09-26 21:50:45,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:50:45,806 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-09-26 21:50:45,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-26 21:50:45,807 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2018-09-26 21:50:45,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:50:45,808 INFO L225 Difference]: With dead ends: 15 [2018-09-26 21:50:45,808 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 21:50:45,809 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-26 21:50:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 21:50:45,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 21:50:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 21:50:45,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 21:50:45,810 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-09-26 21:50:45,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:50:45,811 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 21:50:45,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 21:50:45,811 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 21:50:45,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 21:50:45,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 21:50:46,080 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 54) no Hoare annotation was computed. [2018-09-26 21:50:46,080 INFO L422 ceAbstractionStarter]: At program point L31(lines 31 43) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~y~5)) (.cse0 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~x~5))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-09-26 21:50:46,080 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 54) no Hoare annotation was computed. [2018-09-26 21:50:46,081 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 54) no Hoare annotation was computed. [2018-09-26 21:50:46,081 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 53) no Hoare annotation was computed. [2018-09-26 21:50:46,081 INFO L422 ceAbstractionStarter]: At program point L51(lines 28 51) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~y~5)) (.cse0 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~x~5))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-09-26 21:50:46,081 INFO L422 ceAbstractionStarter]: At program point L42(lines 42 52) the Hoare annotation is: false [2018-09-26 21:50:46,093 INFO L202 PluginConnector]: Adding new model jm2006.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:50:46 BoogieIcfgContainer [2018-09-26 21:50:46,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 21:50:46,094 INFO L168 Benchmark]: Toolchain (without parser) took 4016.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 171.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 7.1 GB. [2018-09-26 21:50:46,096 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 21:50:46,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 21:50:46,098 INFO L168 Benchmark]: Boogie Preprocessor took 23.46 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 21:50:46,099 INFO L168 Benchmark]: RCFGBuilder took 314.34 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. [2018-09-26 21:50:46,100 INFO L168 Benchmark]: TraceAbstraction took 3625.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 150.7 MB). Peak memory consumption was 150.7 MB. Max. memory is 7.1 GB. [2018-09-26 21:50:46,105 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 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.21 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 Preprocessor took 23.46 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 314.34 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 3625.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 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: 53]: 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: 31]: Loop Invariant Derived loop invariant: main_~j~5 + main_~x~5 <= main_~i~5 + main_~y~5 && main_~i~5 + main_~y~5 <= main_~j~5 + main_~x~5 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: main_~j~5 + main_~x~5 <= main_~i~5 + main_~y~5 && main_~i~5 + main_~y~5 <= main_~j~5 + main_~x~5 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 0 SDslu, 39 SDs, 0 SdLazy, 61 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=3, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 13 NumberOfFragments, 31 HoareAnnotationTreeSize, 3 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 294 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 6077 SizeOfPredicates, 18 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 2/56 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/jm2006.c.i_3.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_21-50-46-121.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/jm2006.c.i_3.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_21-50-46-121.csv Received shutdown request...