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/simple1.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:07:20,644 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:07:20,646 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:07:20,668 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-09-26 09:07:20,727 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 09:07:20,742 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:07:20,742 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:07:20,744 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:07:20,744 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:07:20,744 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 09:07:20,744 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:07:20,745 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:07:20,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:07:20,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:07:20,837 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:07:20,839 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:07:20,840 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:07:20,840 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/simple1.i_3.bpl [2018-09-26 09:07:20,841 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/simple1.i_3.bpl' [2018-09-26 09:07:20,909 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:07:20,914 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:07:20,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:07:20,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:07:20,916 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:07:20,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:20" (1/1) ... [2018-09-26 09:07:20,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:20" (1/1) ... [2018-09-26 09:07:20,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:07:20,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:07:20,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:07:20,959 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:07:20,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:20" (1/1) ... [2018-09-26 09:07:20,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:20" (1/1) ... [2018-09-26 09:07:20,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:20" (1/1) ... [2018-09-26 09:07:20,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:20" (1/1) ... [2018-09-26 09:07:20,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:20" (1/1) ... [2018-09-26 09:07:20,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:20" (1/1) ... [2018-09-26 09:07:20,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:20" (1/1) ... [2018-09-26 09:07:20,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:07:20,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:07:20,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:07:20,983 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:07:20,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:20" (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 09:07:21,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 09:07:21,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 09:07:21,303 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 09:07:21,303 INFO L202 PluginConnector]: Adding new model simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:07:21 BoogieIcfgContainer [2018-09-26 09:07:21,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:07:21,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:07:21,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:07:21,308 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:07:21,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:20" (1/2) ... [2018-09-26 09:07:21,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2ef08a and model type simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:07:21, skipping insertion in model container [2018-09-26 09:07:21,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "simple1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:07:21" (2/2) ... [2018-09-26 09:07:21,312 INFO L112 eAbstractionObserver]: Analyzing ICFG simple1.i_3.bpl [2018-09-26 09:07:21,322 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:07:21,330 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:07:21,377 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:07:21,378 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:07:21,378 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:07:21,379 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:07:21,379 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:07:21,379 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:07:21,379 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:07:21,379 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:07:21,380 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:07:21,395 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 09:07:21,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 09:07:21,404 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:07:21,405 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 09:07:21,406 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:07:21,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:07:21,413 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 09:07:21,435 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:07:21,651 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:07:21,651 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 09:07:21,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 09:07:21,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 09:07:21,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 09:07:21,666 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-26 09:07:21,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:07:21,726 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-09-26 09:07:21,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 09:07:21,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 09:07:21,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:07:21,741 INFO L225 Difference]: With dead ends: 10 [2018-09-26 09:07:21,741 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 09:07:21,749 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 09:07:21,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 09:07:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 09:07:21,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 09:07:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 09:07:21,831 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 09:07:21,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:07:21,832 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 09:07:21,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 09:07:21,832 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 09:07:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 09:07:21,833 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:07:21,833 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 09:07:21,834 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:07:21,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:07:21,834 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 09:07:21,862 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:07:22,406 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2018-09-26 09:07:46,898 WARN L178 SmtUtils]: Spent 12.05 s on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-09-26 09:07:59,317 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2018-09-26 09:08:11,617 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_ULTIMATE.start_main_~x~4 2))) (let ((.cse1 (not (= 0 .cse4))) (.cse7 (mod (+ c_ULTIMATE.start_main_~x~4 4) 4294967296)) (.cse3 (+ .cse4 (- 2)))) (let ((.cse5 (= 0 (let ((.cse8 (mod (ite (and .cse1 (< .cse7 0)) .cse3 .cse4) 4294967296))) (ite (<= .cse8 2147483647) .cse8 (+ .cse8 (- 4294967296)))))) (.cse6 (<= 268435455 .cse7))) (and (not (let ((.cse2 (mod c_ULTIMATE.start_main_~x~4 4294967296))) (and (= 0 (let ((.cse0 (mod (ite (and .cse1 (< .cse2 0)) .cse3 .cse4) 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) (<= 268435455 .cse2)))) (not (and .cse5 .cse6 (< (mod (+ c_ULTIMATE.start_main_~x~4 2) 4294967296) 268435455))) (not (and .cse5 .cse6)))))) is different from true [2018-09-26 09:08:11,619 ERROR L410 Pdr]: Internal query 355#(and (not (and (= 0 (ite (<= (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod ULTIMATE.start_main_~x~4 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) 2147483647) (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod ULTIMATE.start_main_~x~4 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) (+ (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod ULTIMATE.start_main_~x~4 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) (- 4294967296)))) (<= 268435455 (mod ULTIMATE.start_main_~x~4 4294967296)))) (not (and (= 0 (ite (<= (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) 2147483647) (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) (+ (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) (- 4294967296)))) (<= 268435455 (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296)) (< (mod (+ ULTIMATE.start_main_~x~4 2) 4294967296) 268435455))) (not (and (= 0 (ite (<= (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) 2147483647) (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) (+ (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) (- 4294967296)))) (<= 268435455 (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296))))) && assume true; && 269#(and (= 0 (ite (<= (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) 2147483647) (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) (+ (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) (- 4294967296)))) (<= 268435455 (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296)) (< (mod (+ ULTIMATE.start_main_~x~4 2) 4294967296) 268435455)) was unknown! [2018-09-26 09:08:11,820 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:08:11,822 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 09:08:11,826 INFO L168 Benchmark]: Toolchain (without parser) took 50915.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. [2018-09-26 09:08:11,827 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:08:11,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.43 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 09:08:11,829 INFO L168 Benchmark]: Boogie Preprocessor took 22.00 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 09:08:11,830 INFO L168 Benchmark]: RCFGBuilder took 320.56 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 09:08:11,831 INFO L168 Benchmark]: TraceAbstraction took 50520.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-09-26 09:08:11,836 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.43 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 22.00 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 320.56 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 50520.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 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/simple1.i_3.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_09-08-11-850.csv Received shutdown request...