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/20170304-DifficultPathPrograms/half_2.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:50:07,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:50:07,950 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:50:07,967 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:50:07,967 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:50:07,971 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:50:07,973 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:50:07,975 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:50:07,977 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:50:07,977 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:50:07,978 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 08:50:07,979 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 08:50:07,980 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 08:50:07,981 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 08:50:07,982 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 08:50:07,983 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 08:50:07,984 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 08:50:07,985 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 08:50:07,988 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 08:50:07,989 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 08:50:07,990 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 08:50:07,992 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 08:50:07,994 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 08:50:07,995 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 08:50:07,995 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 08:50:07,996 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 08:50:07,997 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 08:50:07,998 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 08:50:07,998 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 08:50:08,000 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 08:50:08,000 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 08:50:08,001 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 08:50:08,001 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 08:50:08,001 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 08:50:08,002 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 08:50:08,003 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 08:50:08,003 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 08:50:08,020 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:50:08,020 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:50:08,022 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:50:08,022 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 08:50:08,022 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 08:50:08,022 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:50:08,025 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:50:08,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:50:08,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:50:08,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:50:08,101 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:50:08,101 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:50:08,102 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/half_2.i_3.bpl [2018-09-26 08:50:08,102 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/half_2.i_3.bpl' [2018-09-26 08:50:08,145 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:50:08,148 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:50:08,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:50:08,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:50:08,149 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:50:08,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:50:08" (1/1) ... [2018-09-26 08:50:08,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:50:08" (1/1) ... [2018-09-26 08:50:08,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:50:08,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:50:08,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:50:08,190 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:50:08,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:50:08" (1/1) ... [2018-09-26 08:50:08,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:50:08" (1/1) ... [2018-09-26 08:50:08,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:50:08" (1/1) ... [2018-09-26 08:50:08,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:50:08" (1/1) ... [2018-09-26 08:50:08,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:50:08" (1/1) ... [2018-09-26 08:50:08,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:50:08" (1/1) ... [2018-09-26 08:50:08,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:50:08" (1/1) ... [2018-09-26 08:50:08,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:50:08,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:50:08,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:50:08,211 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:50:08,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:50:08" (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 08:50:08,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:50:08,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:50:08,461 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:50:08,461 INFO L202 PluginConnector]: Adding new model half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:50:08 BoogieIcfgContainer [2018-09-26 08:50:08,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:50:08,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:50:08,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:50:08,466 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:50:08,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:50:08" (1/2) ... [2018-09-26 08:50:08,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a05a496 and model type half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:50:08, skipping insertion in model container [2018-09-26 08:50:08,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:50:08" (2/2) ... [2018-09-26 08:50:08,469 INFO L112 eAbstractionObserver]: Analyzing ICFG half_2.i_3.bpl [2018-09-26 08:50:08,479 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:50:08,487 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:50:08,534 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:50:08,535 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:50:08,535 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:50:08,535 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 08:50:08,536 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:50:08,536 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:50:08,536 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:50:08,536 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:50:08,536 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:50:08,549 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 08:50:08,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:50:08,558 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:50:08,559 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:50:08,560 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:50:08,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:50:08,566 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, 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 08:50:08,589 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:50:08,918 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:50:08,918 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 08:50:08,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 08:50:08,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 08:50:08,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:50:08,930 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-26 08:50:08,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:50:08,969 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-09-26 08:50:08,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 08:50:08,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 08:50:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:50:08,983 INFO L225 Difference]: With dead ends: 10 [2018-09-26 08:50:08,984 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 08:50:08,987 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:50:09,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 08:50:09,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 08:50:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 08:50:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 08:50:09,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 08:50:09,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:50:09,024 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 08:50:09,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 08:50:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 08:50:09,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 08:50:09,025 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:50:09,025 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 08:50:09,026 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:50:09,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:50:09,026 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, 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 08:50:09,037 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:50:09,784 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2018-09-26 08:50:10,504 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2018-09-26 08:50:11,263 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 08:50:13,286 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2018-09-26 08:50:13,843 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2018-09-26 08:50:14,395 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-09-26 08:50:15,010 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2018-09-26 08:50:15,686 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2018-09-26 08:50:16,697 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2018-09-26 08:50:17,751 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2018-09-26 08:50:18,787 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2018-09-26 08:50:19,904 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2018-09-26 08:50:21,222 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2018-09-26 08:50:22,918 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2018-09-26 08:50:24,610 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2018-09-26 08:50:26,453 WARN L178 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2018-09-26 08:50:28,424 WARN L178 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 220 [2018-09-26 08:50:30,570 WARN L178 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2018-09-26 08:50:32,995 WARN L178 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 239 [2018-09-26 08:50:35,660 WARN L178 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2018-09-26 08:50:38,722 WARN L178 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2018-09-26 08:50:41,907 WARN L178 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2018-09-26 08:50:45,368 WARN L178 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2018-09-26 08:50:49,229 WARN L178 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2018-09-26 08:50:53,535 WARN L178 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 296 [2018-09-26 08:50:58,601 WARN L178 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2018-09-26 08:51:02,772 WARN L178 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2018-09-26 08:51:04,493 WARN L178 SmtUtils]: Spent 910.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2018-09-26 08:51:09,824 WARN L178 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2018-09-26 08:51:15,729 WARN L178 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2018-09-26 08:51:22,027 WARN L178 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2018-09-26 08:51:28,717 WARN L178 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2018-09-26 08:51:36,086 WARN L178 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2018-09-26 08:51:44,396 WARN L178 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2018-09-26 08:51:52,860 WARN L178 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2018-09-26 08:52:02,179 WARN L178 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2018-09-26 08:52:11,927 WARN L178 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2018-09-26 08:52:22,357 WARN L178 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 410 [2018-09-26 08:52:33,666 WARN L178 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 419 [2018-09-26 08:52:45,542 WARN L178 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2018-09-26 08:52:58,309 WARN L178 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2018-09-26 08:53:11,700 WARN L178 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2018-09-26 08:53:25,978 WARN L178 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 457 [2018-09-26 08:53:41,224 WARN L178 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 467 [2018-09-26 08:53:57,441 WARN L178 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 476 [2018-09-26 08:54:14,468 WARN L178 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 486 [2018-09-26 08:54:32,540 WARN L178 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 495 Received shutdown request... [2018-09-26 08:54:51,316 WARN L186 SmtUtils]: Removed 25 from assertion stack [2018-09-26 08:54:51,518 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:54:51,519 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-26 08:54:51,524 WARN L206 ceAbstractionStarter]: Timeout [2018-09-26 08:54:51,525 INFO L202 PluginConnector]: Adding new model half_2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:54:51 BoogieIcfgContainer [2018-09-26 08:54:51,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:54:51,526 INFO L168 Benchmark]: Toolchain (without parser) took 283380.87 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -222.3 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 290.3 MB). Peak memory consumption was 375.8 MB. Max. memory is 7.1 GB. [2018-09-26 08:54:51,527 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:54:51,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.39 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:54:51,528 INFO L168 Benchmark]: Boogie Preprocessor took 20.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 08:54:51,529 INFO L168 Benchmark]: RCFGBuilder took 251.40 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 08:54:51,530 INFO L168 Benchmark]: TraceAbstraction took 283062.53 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -222.3 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 269.1 MB). Peak memory consumption was 354.7 MB. Max. memory is 7.1 GB. [2018-09-26 08:54:51,534 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 0.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.39 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 251.40 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 283062.53 ms. Allocated memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: -222.3 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 269.1 MB). Peak memory consumption was 354.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 51). Cancelled while BasicCegarLoop was analyzing trace of length 7 with TraceHistMax 2, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 505. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. TIMEOUT Result, 282.9s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 2 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=1, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s 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/half_2.i_3.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-54-51-547.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/half_2.i_3.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-54-51-547.csv Completed graceful shutdown