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 -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement-simplified01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:16:51,919 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:16:51,921 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:16:51,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:16:51,938 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:16:51,939 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:16:51,940 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:16:51,942 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:16:51,944 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:16:51,945 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:16:51,946 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 09:16:51,946 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 09:16:51,947 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 09:16:51,948 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 09:16:51,949 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 09:16:51,950 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 09:16:51,951 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 09:16:51,953 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 09:16:51,955 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 09:16:51,957 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 09:16:51,958 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 09:16:51,959 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 09:16:51,961 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 09:16:51,961 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 09:16:51,962 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 09:16:51,963 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 09:16:51,963 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 09:16:51,964 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 09:16:51,965 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 09:16:51,966 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 09:16:51,967 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 09:16:51,967 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-26 09:16:51,970 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-09-26 09:16:51,985 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:16:51,985 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:16:51,986 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:16:51,986 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:16:51,987 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 09:16:51,987 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:16:51,987 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:16:52,042 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:16:52,056 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:16:52,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:16:52,061 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:16:52,061 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:16:52,062 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement-simplified01.bpl [2018-09-26 09:16:52,062 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement-simplified01.bpl' [2018-09-26 09:16:52,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:16:52,117 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:16:52,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:16:52,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:16:52,118 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:16:52,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:52" (1/1) ... [2018-09-26 09:16:52,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:52" (1/1) ... [2018-09-26 09:16:52,157 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 09:16:52,158 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 09:16:52,158 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 09:16:52,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:16:52,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:16:52,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:16:52,178 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:16:52,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:52" (1/1) ... [2018-09-26 09:16:52,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:52" (1/1) ... [2018-09-26 09:16:52,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:52" (1/1) ... [2018-09-26 09:16:52,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:52" (1/1) ... [2018-09-26 09:16:52,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:52" (1/1) ... [2018-09-26 09:16:52,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:52" (1/1) ... [2018-09-26 09:16:52,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:52" (1/1) ... [2018-09-26 09:16:52,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:16:52,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:16:52,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:16:52,207 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:16:52,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:52" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-09-26 09:16:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-26 09:16:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-26 09:16:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-26 09:16:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure ~malloc [2018-09-26 09:16:52,651 INFO L343 CfgBuilder]: Using library mode [2018-09-26 09:16:52,651 INFO L202 PluginConnector]: Adding new model PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:16:52 BoogieIcfgContainer [2018-09-26 09:16:52,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:16:52,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:16:52,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:16:52,657 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:16:52,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:16:52" (1/2) ... [2018-09-26 09:16:52,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1100af and model type PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:16:52, skipping insertion in model container [2018-09-26 09:16:52,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:16:52" (2/2) ... [2018-09-26 09:16:52,660 INFO L112 eAbstractionObserver]: Analyzing ICFG PointerIncrement-simplified01.bpl [2018-09-26 09:16:52,670 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:16:52,679 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-09-26 09:16:52,721 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:16:52,722 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:16:52,722 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:16:52,722 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:16:52,722 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:16:52,723 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:16:52,723 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:16:52,723 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:16:52,723 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:16:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-09-26 09:16:52,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 09:16:52,749 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:16:52,750 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 09:16:52,750 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONPRE_CONDITIONandASSERT, mainErr0ASSERT_VIOLATIONPRE_CONDITIONandASSERT]=== [2018-09-26 09:16:52,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:16:52,756 INFO L82 PathProgramCache]: Analyzing trace with hash 927590, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:16:52,774 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:16:53,041 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:16:53,041 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 09:16:53,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 09:16:53,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 09:16:53,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-26 09:16:53,053 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2018-09-26 09:16:53,374 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-26 09:16:53,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:16:53,833 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2018-09-26 09:16:53,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-26 09:16:53,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-09-26 09:16:53,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:16:53,846 INFO L225 Difference]: With dead ends: 19 [2018-09-26 09:16:53,846 INFO L226 Difference]: Without dead ends: 12 [2018-09-26 09:16:53,850 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-09-26 09:16:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-09-26 09:16:53,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2018-09-26 09:16:53,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 09:16:53,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-09-26 09:16:53,893 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 4 [2018-09-26 09:16:53,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:16:53,893 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-09-26 09:16:53,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 09:16:53,894 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-09-26 09:16:53,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-26 09:16:53,894 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:16:53,894 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-09-26 09:16:53,895 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONPRE_CONDITIONandASSERT, mainErr0ASSERT_VIOLATIONPRE_CONDITIONandASSERT]=== [2018-09-26 09:16:53,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:16:53,895 INFO L82 PathProgramCache]: Analyzing trace with hash 28755331, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:16:53,915 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:16:54,288 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:16:54,288 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-26 09:16:54,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:16:54,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:16:54,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-09-26 09:16:54,291 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. Second operand 6 states. [2018-09-26 09:16:54,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:16:54,650 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2018-09-26 09:16:54,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-26 09:16:54,653 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-09-26 09:16:54,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:16:54,654 INFO L225 Difference]: With dead ends: 18 [2018-09-26 09:16:54,654 INFO L226 Difference]: Without dead ends: 17 [2018-09-26 09:16:54,656 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-09-26 09:16:54,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-26 09:16:54,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 11. [2018-09-26 09:16:54,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-26 09:16:54,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-09-26 09:16:54,669 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2018-09-26 09:16:54,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:16:54,669 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-09-26 09:16:54,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:16:54,669 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-09-26 09:16:54,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 09:16:54,670 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:16:54,671 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-09-26 09:16:54,671 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONPRE_CONDITIONandASSERT, mainErr0ASSERT_VIOLATIONPRE_CONDITIONandASSERT]=== [2018-09-26 09:16:54,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:16:54,672 INFO L82 PathProgramCache]: Analyzing trace with hash 2132412303, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:16:54,686 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:16:55,164 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:16:55,164 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-26 09:16:55,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 09:16:55,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 09:16:55,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-09-26 09:16:55,166 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 7 states. [2018-09-26 09:16:55,395 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-09-26 09:16:56,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:16:56,067 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2018-09-26 09:16:56,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-26 09:16:56,068 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2018-09-26 09:16:56,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:16:56,069 INFO L225 Difference]: With dead ends: 22 [2018-09-26 09:16:56,069 INFO L226 Difference]: Without dead ends: 21 [2018-09-26 09:16:56,070 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2018-09-26 09:16:56,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-09-26 09:16:56,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 12. [2018-09-26 09:16:56,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-09-26 09:16:56,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2018-09-26 09:16:56,083 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2018-09-26 09:16:56,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:16:56,084 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-09-26 09:16:56,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 09:16:56,084 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-09-26 09:16:56,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 09:16:56,085 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:16:56,085 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2018-09-26 09:16:56,085 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONPRE_CONDITIONandASSERT, mainErr0ASSERT_VIOLATIONPRE_CONDITIONandASSERT]=== [2018-09-26 09:16:56,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:16:56,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1391871885, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:16:56,097 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:16:57,413 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-26 09:17:01,976 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2018-09-26 09:17:06,420 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2018-09-26 09:17:09,961 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 110 [2018-09-26 09:17:14,958 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2018-09-26 09:17:20,887 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2018-09-26 09:17:27,757 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2018-09-26 09:17:36,508 WARN L178 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2018-09-26 09:17:47,661 WARN L178 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 149 [2018-09-26 09:18:00,866 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 151 [2018-09-26 09:18:17,436 WARN L178 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 145 [2018-09-26 09:18:37,101 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 153 [2018-09-26 09:19:01,485 WARN L178 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 156 [2018-09-26 09:19:31,005 WARN L178 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2018-09-26 09:20:05,419 WARN L178 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2018-09-26 09:20:46,126 WARN L178 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 Received shutdown request... [2018-09-26 09:21:32,464 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:21:32,464 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-26 09:21:32,470 WARN L206 ceAbstractionStarter]: Timeout [2018-09-26 09:21:32,470 INFO L202 PluginConnector]: Adding new model PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:21:32 BoogieIcfgContainer [2018-09-26 09:21:32,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 09:21:32,471 INFO L168 Benchmark]: Toolchain (without parser) took 280356.74 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -222.3 MB). Free memory was 1.5 GB in the beginning and 954.7 MB in the end (delta: 518.9 MB). Peak memory consumption was 296.6 MB. Max. memory is 7.1 GB. [2018-09-26 09:21:32,472 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 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 09:21:32,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.27 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 09:21:32,473 INFO L168 Benchmark]: Boogie Preprocessor took 28.80 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 09:21:32,474 INFO L168 Benchmark]: RCFGBuilder took 445.38 ms. Allocated memory is still 1.5 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. [2018-09-26 09:21:32,475 INFO L168 Benchmark]: TraceAbstraction took 279817.14 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -222.3 MB). Free memory was 1.5 GB in the beginning and 954.7 MB in the end (delta: 497.8 MB). Peak memory consumption was 275.5 MB. Max. memory is 7.1 GB. [2018-09-26 09:21:32,480 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 0.13 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 59.27 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 28.80 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 445.38 ms. Allocated memory is still 1.5 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 279817.14 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -222.3 MB). Free memory was 1.5 GB in the beginning and 954.7 MB in the end (delta: 497.8 MB). Peak memory consumption was 275.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 41]: Timeout (TraceAbstraction) Unable to prove that procedure precondition always holds and assertion always holds (line 41). Cancelled while BasicCegarLoop was analyzing trace of length 11 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 70 known predicates. - TimeoutResultAtElement [Line: 41]: Timeout (TraceAbstraction) Unable to prove that procedure precondition always holds and assertion always holds (line 41). Cancelled while BasicCegarLoop was analyzing trace of length 11 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 70 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. TIMEOUT Result, 279.7s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 41 SDslu, 6 SDs, 0 SdLazy, 118 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 3 MinimizatonAttempts, 20 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.0s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/PointerIncrement-simplified01.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_09-21-32-491.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/PointerIncrement-simplified01.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_09-21-32-491.csv Completed graceful shutdown