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/sum04.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:09:33,803 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:09:33,806 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:09:33,825 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:09:33,826 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:09:33,827 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:09:33,829 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:09:33,831 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:09:33,834 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:09:33,835 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:09:33,842 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 09:09:33,843 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 09:09:33,844 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 09:09:33,847 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 09:09:33,849 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 09:09:33,851 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 09:09:33,852 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 09:09:33,857 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 09:09:33,860 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 09:09:33,865 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 09:09:33,866 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 09:09:33,870 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 09:09:33,875 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-26 09:09:33,884 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 09:09:33,885 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 09:09:33,888 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 09:09:33,889 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 09:09:33,889 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 09:09:33,905 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:09:33,906 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:09:33,910 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:09:33,911 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:09:33,911 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 09:09:33,911 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:09:33,915 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:09:33,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:09:33,998 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:09:34,006 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:09:34,008 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:09:34,009 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:09:34,009 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum04.i_4.bpl [2018-09-26 09:09:34,010 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum04.i_4.bpl' [2018-09-26 09:09:34,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:09:34,067 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:09:34,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:09:34,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:09:34,068 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:09:34,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:09:34" (1/1) ... [2018-09-26 09:09:34,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:09:34" (1/1) ... [2018-09-26 09:09:34,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:09:34,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:09:34,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:09:34,109 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:09:34,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:09:34" (1/1) ... [2018-09-26 09:09:34,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:09:34" (1/1) ... [2018-09-26 09:09:34,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:09:34" (1/1) ... [2018-09-26 09:09:34,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:09:34" (1/1) ... [2018-09-26 09:09:34,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:09:34" (1/1) ... [2018-09-26 09:09:34,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:09:34" (1/1) ... [2018-09-26 09:09:34,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:09:34" (1/1) ... [2018-09-26 09:09:34,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:09:34,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:09:34,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:09:34,129 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:09:34,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:09:34" (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 09:09:34,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 09:09:34,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 09:09:34,622 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 09:09:34,623 INFO L202 PluginConnector]: Adding new model sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:09:34 BoogieIcfgContainer [2018-09-26 09:09:34,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:09:34,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:09:34,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:09:34,629 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:09:34,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:09:34" (1/2) ... [2018-09-26 09:09:34,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a73c976 and model type sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:09:34, skipping insertion in model container [2018-09-26 09:09:34,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:09:34" (2/2) ... [2018-09-26 09:09:34,634 INFO L112 eAbstractionObserver]: Analyzing ICFG sum04.i_4.bpl [2018-09-26 09:09:34,647 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:09:34,657 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:09:34,713 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:09:34,714 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:09:34,714 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:09:34,714 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:09:34,714 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:09:34,715 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:09:34,715 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:09:34,715 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:09:34,715 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:09:34,733 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 09:09:34,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 09:09:34,743 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:09:34,745 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 09:09:34,746 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:09:34,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:09:34,756 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 09:09:34,783 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:09:34,969 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-26 09:09:35,121 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:09:35,122 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 09:09:35,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 09:09:35,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 09:09:35,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 09:09:35,136 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-26 09:09:35,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:09:35,179 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2018-09-26 09:09:35,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 09:09:35,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 09:09:35,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:09:35,195 INFO L225 Difference]: With dead ends: 13 [2018-09-26 09:09:35,195 INFO L226 Difference]: Without dead ends: 8 [2018-09-26 09:09:35,199 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 09:09:35,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-26 09:09:35,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-09-26 09:09:35,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-09-26 09:09:35,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-09-26 09:09:35,240 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2018-09-26 09:09:35,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:09:35,240 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-09-26 09:09:35,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 09:09:35,240 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-09-26 09:09:35,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-26 09:09:35,241 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:09:35,241 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2018-09-26 09:09:35,242 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:09:35,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:09:35,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1808144116, 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 09:09:35,254 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:09:39,570 WARN L178 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-26 09:09:40,261 WARN L178 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-09-26 09:09:43,998 WARN L178 SmtUtils]: Spent 3.69 s on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-09-26 09:09:44,861 ERROR L410 Pdr]: Internal query 707#(and (not (and (exists ((v_ULTIMATE.start_main_~sn~4_11 Int)) (and (or (and (= (+ ULTIMATE.start_main_~sn~4 2) v_ULTIMATE.start_main_~sn~4_11) (< ULTIMATE.start_main_~i~4 4)) (and (= ULTIMATE.start_main_~sn~4 v_ULTIMATE.start_main_~sn~4_11) (<= 4 ULTIMATE.start_main_~i~4))) (exists ((v_ULTIMATE.start_main_~sn~4_10 Int)) (and (or (and (= v_ULTIMATE.start_main_~sn~4_10 (+ v_ULTIMATE.start_main_~sn~4_11 2)) (< ULTIMATE.start_main_~i~4 3)) (and (<= 3 ULTIMATE.start_main_~i~4) (= v_ULTIMATE.start_main_~sn~4_11 v_ULTIMATE.start_main_~sn~4_10))) (= (ite (or (= v_ULTIMATE.start_main_~sn~4_10 16) (= v_ULTIMATE.start_main_~sn~4_10 0)) 1 0) 0))))) (< 6 ULTIMATE.start_main_~i~4))) (not (and (< 5 ULTIMATE.start_main_~i~4) (exists ((v_ULTIMATE.start_main_~sn~4_12 Int)) (and (exists ((v_ULTIMATE.start_main_~sn~4_11 Int)) (and (or (and (= v_ULTIMATE.start_main_~sn~4_11 (+ v_ULTIMATE.start_main_~sn~4_12 2)) (< ULTIMATE.start_main_~i~4 3)) (and (= v_ULTIMATE.start_main_~sn~4_12 v_ULTIMATE.start_main_~sn~4_11) (<= 3 ULTIMATE.start_main_~i~4))) (exists ((v_ULTIMATE.start_main_~sn~4_10 Int)) (and (or (and (= v_ULTIMATE.start_main_~sn~4_10 (+ v_ULTIMATE.start_main_~sn~4_11 2)) (< ULTIMATE.start_main_~i~4 2)) (and (<= 2 ULTIMATE.start_main_~i~4) (= v_ULTIMATE.start_main_~sn~4_11 v_ULTIMATE.start_main_~sn~4_10))) (= (ite (or (= v_ULTIMATE.start_main_~sn~4_10 16) (= v_ULTIMATE.start_main_~sn~4_10 0)) 1 0) 0))))) (or (and (= (+ ULTIMATE.start_main_~sn~4 2) v_ULTIMATE.start_main_~sn~4_12) (< ULTIMATE.start_main_~i~4 4)) (and (= ULTIMATE.start_main_~sn~4 v_ULTIMATE.start_main_~sn~4_12) (<= 4 ULTIMATE.start_main_~i~4)))))))) && BeginParallelComposition{ParallelCodeBlock0: assume main_~i~4 < 4;main_~sn~4 := main_~sn~4 + 2;ParallelCodeBlock1: assume !(main_~i~4 < 4);}EndParallelCompositionmain_#t~post0 := main_~i~4;main_~i~4 := main_#t~post0 + 1;havoc main_#t~post0; && 345#(and (exists ((v_ULTIMATE.start_main_~sn~4_11 Int)) (and (or (and (= (+ ULTIMATE.start_main_~sn~4 2) v_ULTIMATE.start_main_~sn~4_11) (< ULTIMATE.start_main_~i~4 4)) (and (= ULTIMATE.start_main_~sn~4 v_ULTIMATE.start_main_~sn~4_11) (<= 4 ULTIMATE.start_main_~i~4))) (exists ((v_ULTIMATE.start_main_~sn~4_10 Int)) (and (or (and (= v_ULTIMATE.start_main_~sn~4_10 (+ v_ULTIMATE.start_main_~sn~4_11 2)) (< ULTIMATE.start_main_~i~4 3)) (and (<= 3 ULTIMATE.start_main_~i~4) (= v_ULTIMATE.start_main_~sn~4_11 v_ULTIMATE.start_main_~sn~4_10))) (= (ite (or (= v_ULTIMATE.start_main_~sn~4_10 16) (= v_ULTIMATE.start_main_~sn~4_10 0)) 1 0) 0))))) (<= ULTIMATE.start_main_~i~4 7) (< 6 ULTIMATE.start_main_~i~4)) was unknown! [2018-09-26 09:09:45,063 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:09:45,065 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-26 09:09:45,069 INFO L168 Benchmark]: Toolchain (without parser) took 11005.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 298.7 MB). Peak memory consumption was 298.7 MB. Max. memory is 7.1 GB. [2018-09-26 09:09:45,071 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:09:45,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.51 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:09:45,072 INFO L168 Benchmark]: Boogie Preprocessor took 19.87 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:09:45,072 INFO L168 Benchmark]: RCFGBuilder took 494.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 09:09:45,074 INFO L168 Benchmark]: TraceAbstraction took 10444.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 277.5 MB). Peak memory consumption was 277.5 MB. Max. memory is 7.1 GB. [2018-09-26 09:09:45,078 INFO L336 ainManager$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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.51 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 19.87 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 494.09 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 10444.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 277.5 MB). Peak memory consumption was 277.5 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/sum04.i_4.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_09-09-45-092.csv Received shutdown request...