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/vogal.i_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:11:54,206 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:11:54,209 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:11:54,221 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:11:54,221 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:11:54,222 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:11:54,223 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:11:54,225 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:11:54,227 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:11:54,228 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:11:54,229 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 09:11:54,229 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 09:11:54,230 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 09:11:54,231 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 09:11:54,232 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 09:11:54,233 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 09:11:54,233 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 09:11:54,235 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 09:11:54,237 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 09:11:54,239 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 09:11:54,240 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 09:11:54,242 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 09:11:54,245 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 09:11:54,245 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 09:11:54,245 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 09:11:54,246 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 09:11:54,247 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 09:11:54,248 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 09:11:54,249 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 09:11:54,250 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 09:11:54,251 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 09:11:54,251 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 09:11:54,252 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 09:11:54,252 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 09:11:54,253 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 09:11:54,254 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 09:11:54,254 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 09:11:54,263 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:11:54,263 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:11:54,264 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:11:54,265 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:11:54,265 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 09:11:54,265 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:11:54,265 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:11:54,308 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:11:54,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:11:54,333 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:11:54,335 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:11:54,335 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:11:54,336 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/vogal.i_5.bpl [2018-09-26 09:11:54,336 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/vogal.i_5.bpl' [2018-09-26 09:11:54,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:11:54,396 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:11:54,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:11:54,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:11:54,398 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:11:54,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:11:54" (1/1) ... [2018-09-26 09:11:54,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:11:54" (1/1) ... [2018-09-26 09:11:54,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:11:54,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:11:54,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:11:54,441 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:11:54,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:11:54" (1/1) ... [2018-09-26 09:11:54,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:11:54" (1/1) ... [2018-09-26 09:11:54,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:11:54" (1/1) ... [2018-09-26 09:11:54,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:11:54" (1/1) ... [2018-09-26 09:11:54,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:11:54" (1/1) ... [2018-09-26 09:11:54,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:11:54" (1/1) ... [2018-09-26 09:11:54,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:11:54" (1/1) ... [2018-09-26 09:11:54,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:11:54,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:11:54,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:11:54,470 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:11:54,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:11:54" (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 09:11:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 09:11:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 09:11:54,864 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 09:11:54,865 INFO L202 PluginConnector]: Adding new model vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:11:54 BoogieIcfgContainer [2018-09-26 09:11:54,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:11:54,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:11:54,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:11:54,870 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:11:54,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:11:54" (1/2) ... [2018-09-26 09:11:54,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e8e896 and model type vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:11:54, skipping insertion in model container [2018-09-26 09:11:54,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:11:54" (2/2) ... [2018-09-26 09:11:54,875 INFO L112 eAbstractionObserver]: Analyzing ICFG vogal.i_5.bpl [2018-09-26 09:11:54,887 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:11:54,897 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:11:54,967 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:11:54,968 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:11:54,968 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:11:54,972 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:11:54,972 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:11:54,972 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:11:54,972 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:11:54,973 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:11:54,973 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:11:55,004 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-09-26 09:11:55,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 09:11:55,013 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:11:55,014 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:11:55,015 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:11:55,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:11:55,022 INFO L82 PathProgramCache]: Analyzing trace with hash 148998095, 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 09:11:55,048 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:11:55,227 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:11:55,228 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 09:11:55,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 09:11:55,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 09:11:55,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 09:11:55,243 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2018-09-26 09:11:55,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:11:55,353 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2018-09-26 09:11:55,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 09:11:55,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-09-26 09:11:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:11:55,367 INFO L225 Difference]: With dead ends: 21 [2018-09-26 09:11:55,368 INFO L226 Difference]: Without dead ends: 15 [2018-09-26 09:11:55,371 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 09:11:55,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-26 09:11:55,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2018-09-26 09:11:55,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-26 09:11:55,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-09-26 09:11:55,406 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2018-09-26 09:11:55,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:11:55,406 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-09-26 09:11:55,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 09:11:55,406 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-09-26 09:11:55,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 09:11:55,408 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:11:55,408 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:11:55,408 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:11:55,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:11:55,409 INFO L82 PathProgramCache]: Analyzing trace with hash 768493221, 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 09:11:55,424 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:11:55,710 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:11:55,711 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-26 09:11:55,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 09:11:55,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 09:11:55,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-26 09:11:55,713 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2018-09-26 09:11:56,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:11:56,020 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2018-09-26 09:11:56,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 09:11:56,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-09-26 09:11:56,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:11:56,022 INFO L225 Difference]: With dead ends: 19 [2018-09-26 09:11:56,022 INFO L226 Difference]: Without dead ends: 17 [2018-09-26 09:11:56,024 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-26 09:11:56,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-26 09:11:56,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-09-26 09:11:56,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-26 09:11:56,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2018-09-26 09:11:56,034 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 12 [2018-09-26 09:11:56,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:11:56,035 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2018-09-26 09:11:56,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 09:11:56,035 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2018-09-26 09:11:56,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 09:11:56,036 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:11:56,036 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:11:56,037 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:11:56,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:11:56,037 INFO L82 PathProgramCache]: Analyzing trace with hash -144651777, 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 09:11:56,054 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:11:56,790 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-26 09:11:57,229 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-09-26 09:11:57,943 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-09-26 09:11:58,556 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2018-09-26 09:11:59,040 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-09-26 09:11:59,828 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2018-09-26 09:12:00,574 WARN L178 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2018-09-26 09:12:01,989 WARN L178 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2018-09-26 09:12:02,658 WARN L178 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-09-26 09:12:03,471 WARN L178 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-09-26 09:12:13,564 WARN L178 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-09-26 09:12:14,679 WARN L178 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-09-26 09:12:15,795 WARN L178 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2018-09-26 09:12:27,910 ERROR L410 Pdr]: Internal query 3690#(and (not (and (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 3) 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 4) 4294967296))) (= 0 (select ULTIMATE.start_main_~string_entrada~5 (mod (+ ULTIMATE.start_main_~i~5 1) 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 1) 4294967296))) (= 0 (ite (= (mod (+ ULTIMATE.start_main_~cont_aux~5 6) 4294967296) (mod ULTIMATE.start_main_~cont~5 4294967296)) 1 0)) (= (select ULTIMATE.start_main_~vetor_vogais~5 (mod ULTIMATE.start_main_~j~5 4294967296)) (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 2) 4294967296))) (<= 10 (mod (+ ULTIMATE.start_main_~j~5 6) 4294967296)) (< (mod (+ ULTIMATE.start_main_~j~5 5) 4294967296) 10) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 5) 4294967296))))) (not (and (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 3) 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 4) 4294967296))) (<= 10 (mod (+ ULTIMATE.start_main_~j~5 7) 4294967296)) (= 0 (select ULTIMATE.start_main_~string_entrada~5 (mod (+ ULTIMATE.start_main_~i~5 1) 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 1) 4294967296))) (= (select ULTIMATE.start_main_~vetor_vogais~5 (mod ULTIMATE.start_main_~j~5 4294967296)) (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 2) 4294967296))) (< (mod (+ ULTIMATE.start_main_~j~5 6) 4294967296) 10) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 6) 4294967296))) (= (ite (= (mod ULTIMATE.start_main_~cont~5 4294967296) (mod (+ ULTIMATE.start_main_~cont_aux~5 7) 4294967296)) 1 0) 0) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 5) 4294967296))))) (not (and (<= 10 (mod (+ ULTIMATE.start_main_~j~5 3) 4294967296)) (= 0 (select ULTIMATE.start_main_~string_entrada~5 (mod (+ ULTIMATE.start_main_~i~5 1) 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 1) 4294967296))) (= (select ULTIMATE.start_main_~vetor_vogais~5 (mod ULTIMATE.start_main_~j~5 4294967296)) (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 2) 4294967296))) (= 0 (ite (= (mod ULTIMATE.start_main_~cont~5 4294967296) (mod (+ ULTIMATE.start_main_~cont_aux~5 3) 4294967296)) 1 0)) (< (mod (+ ULTIMATE.start_main_~j~5 2) 4294967296) 10))) (not (and (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 3) 4294967296))) (= 0 (select ULTIMATE.start_main_~string_entrada~5 (mod (+ ULTIMATE.start_main_~i~5 1) 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 1) 4294967296))) (= (select ULTIMATE.start_main_~vetor_vogais~5 (mod ULTIMATE.start_main_~j~5 4294967296)) (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 2) 4294967296))) (<= 10 (mod (+ ULTIMATE.start_main_~j~5 4) 4294967296)) (= 0 (ite (= (mod ULTIMATE.start_main_~cont~5 4294967296) (mod (+ ULTIMATE.start_main_~cont_aux~5 4) 4294967296)) 1 0)) (< (mod (+ ULTIMATE.start_main_~j~5 3) 4294967296) 10))) (not (and (= 0 (select ULTIMATE.start_main_~string_entrada~5 (mod (+ ULTIMATE.start_main_~i~5 1) 4294967296))) (= (select ULTIMATE.start_main_~vetor_vogais~5 (mod ULTIMATE.start_main_~j~5 4294967296)) (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296))) (= 0 (ite (= (mod ULTIMATE.start_main_~cont~5 4294967296) (mod (+ ULTIMATE.start_main_~cont_aux~5 1) 4294967296)) 1 0)) (< (mod ULTIMATE.start_main_~j~5 4294967296) 10) (<= 10 (mod (+ ULTIMATE.start_main_~j~5 1) 4294967296)))) (not (and (= 0 (ite (= (mod ULTIMATE.start_main_~cont~5 4294967296) (mod (+ ULTIMATE.start_main_~cont_aux~5 2) 4294967296)) 1 0)) (= 0 (select ULTIMATE.start_main_~string_entrada~5 (mod (+ ULTIMATE.start_main_~i~5 1) 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 1) 4294967296))) (< (mod (+ ULTIMATE.start_main_~j~5 1) 4294967296) 10) (= (select ULTIMATE.start_main_~vetor_vogais~5 (mod ULTIMATE.start_main_~j~5 4294967296)) (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296))) (<= 10 (mod (+ ULTIMATE.start_main_~j~5 2) 4294967296)))) (not (and (<= 10 (mod ULTIMATE.start_main_~j~5 4294967296)) (= 0 (select ULTIMATE.start_main_~string_entrada~5 (mod (+ ULTIMATE.start_main_~i~5 1) 4294967296))) (= 0 (ite (= (mod ULTIMATE.start_main_~cont~5 4294967296) (mod ULTIMATE.start_main_~cont_aux~5 4294967296)) 1 0)))) (not (and (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 3) 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 4) 4294967296))) (= 0 (select ULTIMATE.start_main_~string_entrada~5 (mod (+ ULTIMATE.start_main_~i~5 1) 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 1) 4294967296))) (= 0 (ite (= (mod ULTIMATE.start_main_~cont~5 4294967296) (mod (+ ULTIMATE.start_main_~cont_aux~5 5) 4294967296)) 1 0)) (= (select ULTIMATE.start_main_~vetor_vogais~5 (mod ULTIMATE.start_main_~j~5 4294967296)) (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 2) 4294967296))) (< (mod (+ ULTIMATE.start_main_~j~5 4) 4294967296) 10) (<= 10 (mod (+ ULTIMATE.start_main_~j~5 5) 4294967296))))) && assume !!(main_~j~5 % 4294967296 < 10);assume main_~string_entrada~5[main_~i~5 % 4294967296] == main_~vetor_vogais~5[main_~j~5 % 4294967296];main_#t~post7 := main_~cont_aux~5;main_~cont_aux~5 := main_#t~post7 + 1;havoc main_#t~post7;main_#t~post6 := main_~j~5;main_~j~5 := main_#t~post6 + 1;havoc main_#t~post6; && 2745#(and (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 3) 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 4) 4294967296))) (= 0 (select ULTIMATE.start_main_~string_entrada~5 (mod (+ ULTIMATE.start_main_~i~5 1) 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 1) 4294967296))) (= 0 (ite (= (mod (+ ULTIMATE.start_main_~cont_aux~5 6) 4294967296) (mod ULTIMATE.start_main_~cont~5 4294967296)) 1 0)) (= (select ULTIMATE.start_main_~vetor_vogais~5 (mod ULTIMATE.start_main_~j~5 4294967296)) (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296))) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 2) 4294967296))) (<= 10 (mod (+ ULTIMATE.start_main_~j~5 6) 4294967296)) (< (mod (+ ULTIMATE.start_main_~j~5 5) 4294967296) 10) (= (select ULTIMATE.start_main_~string_entrada~5 (mod ULTIMATE.start_main_~i~5 4294967296)) (select ULTIMATE.start_main_~vetor_vogais~5 (mod (+ ULTIMATE.start_main_~j~5 5) 4294967296)))) was unknown! [2018-09-26 09:12:28,112 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:12:28,114 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Solver returned unknown at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:412) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.computePdr(Pdr.java:291) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.(Pdr.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructPdr(TraceCheckConstructor.java:274) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-26 09:12:28,118 INFO L168 Benchmark]: Toolchain (without parser) took 33724.19 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 39.3 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 248.5 MB). Peak memory consumption was 287.8 MB. Max. memory is 7.1 GB. [2018-09-26 09:12:28,119 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:12:28,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:12:28,121 INFO L168 Benchmark]: Boogie Preprocessor took 28.57 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:12:28,121 INFO L168 Benchmark]: RCFGBuilder took 395.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 09:12:28,122 INFO L168 Benchmark]: TraceAbstraction took 33250.38 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 39.3 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 227.4 MB). Peak memory consumption was 266.7 MB. Max. memory is 7.1 GB. [2018-09-26 09:12:28,131 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.18 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 43.27 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 28.57 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 395.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33250.38 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 39.3 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 227.4 MB). Peak memory consumption was 266.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Solver returned unknown de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Solver returned unknown: de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:412) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/vogal.i_5.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_09-12-28-150.csv Received shutdown request...