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/real-life/GripperTest-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-00a8621 [2018-09-30 10:42:33,015 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 10:42:33,018 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 10:42:33,030 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 10:42:33,031 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 10:42:33,032 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 10:42:33,033 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 10:42:33,035 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 10:42:33,037 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 10:42:33,037 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 10:42:33,038 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-30 10:42:33,063 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 [2018-09-30 10:42:33,081 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 10:42:33,081 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 10:42:33,082 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 10:42:33,082 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 10:42:33,083 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 10:42:33,083 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 10:42:33,083 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 10:42:33,085 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 10:42:33,085 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 10:42:33,085 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 10:42:33,085 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 10:42:33,085 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 10:42:33,086 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 10:42:33,086 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 10:42:33,086 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 10:42:33,087 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 10:42:33,087 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 10:42:33,088 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 10:42:33,088 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 10:42:33,088 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 10:42:33,088 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 10:42:33,088 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 10:42:33,089 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 10:42:33,089 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 10:42:33,089 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 10:42:33,089 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 10:42:33,090 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 10:42:33,090 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 10:42:33,090 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 10:42:33,090 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 10:42:33,091 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 10:42:33,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 10:42:33,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 10:42:33,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 10:42:33,187 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 10:42:33,188 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 10:42:33,189 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GripperTest-incorrect.bpl [2018-09-30 10:42:33,189 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/GripperTest-incorrect.bpl' [2018-09-30 10:42:33,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 10:42:33,252 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 10:42:33,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 10:42:33,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 10:42:33,253 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 10:42:33,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,294 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-30 10:42:33,294 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-30 10:42:33,294 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-30 10:42:33,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 10:42:33,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 10:42:33,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 10:42:33,298 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 10:42:33,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/1) ... [2018-09-30 10:42:33,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 10:42:33,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 10:42:33,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 10:42:33,330 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 10:42:33,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (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 [2018-09-30 10:42:33,397 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-09-30 10:42:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-30 10:42:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-30 10:42:33,787 INFO L345 CfgBuilder]: Using library mode [2018-09-30 10:42:33,787 INFO L202 PluginConnector]: Adding new model GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:42:33 BoogieIcfgContainer [2018-09-30 10:42:33,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 10:42:33,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 10:42:33,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 10:42:33,794 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 10:42:33,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 30.09 10:42:33" (1/2) ... [2018-09-30 10:42:33,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@954db7f and model type GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 10:42:33, skipping insertion in model container [2018-09-30 10:42:33,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:42:33" (2/2) ... [2018-09-30 10:42:33,798 INFO L112 eAbstractionObserver]: Analyzing ICFG GripperTest-incorrect.bpl [2018-09-30 10:42:33,809 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 10:42:33,819 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 10:42:33,873 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 10:42:33,874 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 10:42:33,875 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 10:42:33,875 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 10:42:33,875 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 10:42:33,875 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 10:42:33,875 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 10:42:33,876 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 10:42:33,876 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 10:42:33,893 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-09-30 10:42:33,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-09-30 10:42:33,900 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:33,902 INFO L375 BasicCegarLoop]: trace histogram [1, 1] [2018-09-30 10:42:33,904 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 10:42:33,912 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:33,912 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-09-30 10:42:33,915 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:33,915 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:33,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:33,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:42:33,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:34,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:42:34,096 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:42:34,097 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-09-30 10:42:34,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:42:34,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:42:34,114 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:34,116 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-09-30 10:42:34,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:34,373 INFO L93 Difference]: Finished difference Result 15 states and 35 transitions. [2018-09-30 10:42:34,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:42:34,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-09-30 10:42:34,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:34,390 INFO L225 Difference]: With dead ends: 15 [2018-09-30 10:42:34,390 INFO L226 Difference]: Without dead ends: 12 [2018-09-30 10:42:34,394 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:34,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-09-30 10:42:34,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-09-30 10:42:34,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-09-30 10:42:34,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 32 transitions. [2018-09-30 10:42:34,440 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 32 transitions. Word has length 2 [2018-09-30 10:42:34,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:34,441 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 32 transitions. [2018-09-30 10:42:34,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:42:34,441 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 32 transitions. [2018-09-30 10:42:34,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 10:42:34,442 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:34,442 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-09-30 10:42:34,442 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 10:42:34,442 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:34,443 INFO L82 PathProgramCache]: Analyzing trace with hash 890483868, now seen corresponding path program 1 times [2018-09-30 10:42:34,443 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:34,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:34,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:34,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:42:34,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:42:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 10:42:34,486 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:42:34,486 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 10:42:34,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 10:42:34,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 10:42:34,489 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:42:34,489 INFO L87 Difference]: Start difference. First operand 12 states and 32 transitions. Second operand 3 states. [2018-09-30 10:42:34,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:42:34,632 INFO L93 Difference]: Finished difference Result 33 states and 92 transitions. [2018-09-30 10:42:34,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 10:42:34,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2018-09-30 10:42:34,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:42:34,635 INFO L225 Difference]: With dead ends: 33 [2018-09-30 10:42:34,635 INFO L226 Difference]: Without dead ends: 22 [2018-09-30 10:42:34,636 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:42:34,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-09-30 10:42:34,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2018-09-30 10:42:34,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-09-30 10:42:34,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 55 transitions. [2018-09-30 10:42:34,643 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 55 transitions. Word has length 6 [2018-09-30 10:42:34,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:42:34,644 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 55 transitions. [2018-09-30 10:42:34,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 10:42:34,644 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 55 transitions. [2018-09-30 10:42:34,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-30 10:42:34,645 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:42:34,645 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2018-09-30 10:42:34,646 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-09-30 10:42:34,646 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:42:34,646 INFO L82 PathProgramCache]: Analyzing trace with hash 2084905842, now seen corresponding path program 1 times [2018-09-30 10:42:34,646 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:42:34,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:42:34,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:34,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:42:34,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:42:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-30 10:42:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-30 10:42:34,676 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-09-30 10:42:34,699 INFO L202 PluginConnector]: Adding new model GripperTest-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 10:42:34 BoogieIcfgContainer [2018-09-30 10:42:34,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 10:42:34,701 INFO L168 Benchmark]: Toolchain (without parser) took 1451.94 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-30 10:42:34,703 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. [2018-09-30 10:42:34,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.99 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. [2018-09-30 10:42:34,705 INFO L168 Benchmark]: Boogie Preprocessor took 30.71 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. [2018-09-30 10:42:34,706 INFO L168 Benchmark]: RCFGBuilder took 458.76 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. [2018-09-30 10:42:34,707 INFO L168 Benchmark]: TraceAbstraction took 911.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-30 10:42:34,711 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 44.99 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 30.71 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 458.76 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 911.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: loop invariant can be violated and assertion can be violated loop invariant can be violated and assertion can be violated We found a FailurePath: [L13] is_room_x := true; [L14] is_left_gripper := true; [L15] room_x := 4; [L16] room_y := 0; [L17] gripper_left := 0; [L18] gripper_right := 0; VAL [gripper_left=0, gripper_right=0, is_left_gripper=true, is_room_x=true, room_x=4, room_y=0] [L22] invariant room_y != -1; VAL [gripper_left=0, gripper_right=0, is_left_gripper=true, is_room_x=true, room_x=4, room_y=0] [?] COND TRUE * VAL [gripper_left=0, gripper_right=0, is_left_gripper=true, is_room_x=true, room_x=4, room_y=0] [L25] COND TRUE is_room_x == true [L26] is_room_x := false; VAL [gripper_left=0, gripper_right=0, is_left_gripper=true, is_room_x=false, room_x=4, room_y=0] [L22] invariant room_y != -1; VAL [gripper_left=0, gripper_right=0, is_left_gripper=true, is_room_x=false, room_x=4, room_y=0] [?] COND TRUE * VAL [gripper_left=0, gripper_right=0, is_left_gripper=true, is_room_x=false, room_x=4, room_y=0] [L39] COND FALSE !(true == is_room_x) [L42] room_y := room_y - 1; VAL [gripper_left=0, gripper_right=0, is_left_gripper=true, is_room_x=false, room_x=4, room_y=-1] [L45] COND TRUE true == is_left_gripper [L46] gripper_left := gripper_left + 1; VAL [gripper_left=1, gripper_right=0, is_left_gripper=true, is_room_x=false, room_x=4, room_y=-1] [L22] invariant room_y != -1; VAL [gripper_left=1, gripper_right=0, is_left_gripper=true, is_room_x=false, room_x=4, room_y=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 24 SDslu, 23 SDs, 0 SdLazy, 13 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 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/GripperTest-incorrect.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_10-42-34-724.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/GripperTest-incorrect.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_10-42-34-724.csv Received shutdown request...