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/overflow1.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:54:53,864 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:54:53,866 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:54:53,882 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:54:53,882 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:54:53,883 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:54:53,885 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:54:53,886 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:54:53,888 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:54:53,889 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:54:53,890 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 08:54:53,938 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-09-26 08:54:53,948 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:54:53,948 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:54:53,949 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:54:53,949 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 08:54:53,949 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 08:54:53,950 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:54:53,950 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:54:54,021 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:54:54,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:54:54,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:54:54,043 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:54:54,044 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:54:54,044 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/overflow1.i_3.bpl [2018-09-26 08:54:54,045 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/overflow1.i_3.bpl' [2018-09-26 08:54:54,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:54:54,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:54:54,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:54:54,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:54:54,108 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:54:54,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:54" (1/1) ... [2018-09-26 08:54:54,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:54" (1/1) ... [2018-09-26 08:54:54,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:54:54,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:54:54,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:54:54,153 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:54:54,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:54" (1/1) ... [2018-09-26 08:54:54,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:54" (1/1) ... [2018-09-26 08:54:54,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:54" (1/1) ... [2018-09-26 08:54:54,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:54" (1/1) ... [2018-09-26 08:54:54,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:54" (1/1) ... [2018-09-26 08:54:54,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:54" (1/1) ... [2018-09-26 08:54:54,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:54" (1/1) ... [2018-09-26 08:54:54,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:54:54,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:54:54,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:54:54,181 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:54:54,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:54" (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 08:54:54,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:54:54,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:54:54,436 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:54:54,436 INFO L202 PluginConnector]: Adding new model overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:54:54 BoogieIcfgContainer [2018-09-26 08:54:54,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:54:54,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:54:54,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:54:54,441 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:54:54,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:54:54" (1/2) ... [2018-09-26 08:54:54,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214cbb04 and model type overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:54:54, skipping insertion in model container [2018-09-26 08:54:54,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "overflow1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:54:54" (2/2) ... [2018-09-26 08:54:54,445 INFO L112 eAbstractionObserver]: Analyzing ICFG overflow1.i_3.bpl [2018-09-26 08:54:54,455 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:54:54,465 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:54:54,514 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:54:54,515 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:54:54,515 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:54:54,515 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 08:54:54,516 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:54:54,516 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:54:54,516 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:54:54,516 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:54:54,516 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:54:54,533 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 08:54:54,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:54:54,545 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:54:54,546 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:54:54,548 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:54:54,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:54:54,560 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:54:54,582 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:54:55,044 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:54:55,044 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 08:54:55,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 08:54:55,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 08:54:55,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:54:55,063 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-09-26 08:54:55,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:54:55,123 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-09-26 08:54:55,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 08:54:55,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 08:54:55,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:54:55,138 INFO L225 Difference]: With dead ends: 10 [2018-09-26 08:54:55,139 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 08:54:55,143 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:54:55,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 08:54:55,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 08:54:55,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 08:54:55,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 08:54:55,182 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 08:54:55,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:54:55,182 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 08:54:55,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 08:54:55,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 08:54:55,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 08:54:55,183 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:54:55,183 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 08:54:55,184 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:54:55,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:54:55,184 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:54:55,202 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:55:07,484 WARN L178 SmtUtils]: Spent 12.05 s on a formula simplification that was a NOOP. DAG size: 26 [2018-09-26 08:55:19,781 WARN L178 SmtUtils]: Spent 12.17 s on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2018-09-26 08:55:51,317 WARN L178 SmtUtils]: Spent 12.19 s on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-09-26 08:56:03,464 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse5 (mod c_ULTIMATE.start_main_~x~4 2))) (let ((.cse2 (not (= 0 .cse5))) (.cse0 (mod (+ c_ULTIMATE.start_main_~x~4 2) 4294967296)) (.cse4 (+ .cse5 (- 2)))) (and (not (let ((.cse3 (mod (+ c_ULTIMATE.start_main_~x~4 4) 4294967296))) (and (<= 10 .cse0) (= 0 (let ((.cse1 (mod (ite (and .cse2 (< .cse3 0)) .cse4 .cse5) 4294967296))) (ite (<= .cse1 2147483647) .cse1 (+ .cse1 (- 4294967296))))) (< .cse3 10)))) (not (let ((.cse7 (mod c_ULTIMATE.start_main_~x~4 4294967296))) (and (= 0 (let ((.cse6 (mod (ite (and .cse2 (< .cse7 0)) .cse4 .cse5) 4294967296))) (ite (<= .cse6 2147483647) .cse6 (+ .cse6 (- 4294967296))))) (< .cse7 10)))) (not (and (< .cse0 10) (= (let ((.cse8 (mod (ite (and .cse2 (< .cse0 0)) .cse4 .cse5) 4294967296))) (ite (<= .cse8 2147483647) .cse8 (+ .cse8 (- 4294967296)))) 0)))))) is different from false [2018-09-26 08:56:03,506 ERROR L410 Pdr]: Internal query 276#(and (not (and (<= 10 (mod (+ ULTIMATE.start_main_~x~4 2) 4294967296)) (= 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)))) (< (mod (+ ULTIMATE.start_main_~x~4 4) 4294967296) 10))) (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)))) (< (mod ULTIMATE.start_main_~x~4 4294967296) 10))) (not (and (< (mod (+ ULTIMATE.start_main_~x~4 2) 4294967296) 10) (= (ite (<= (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod (+ ULTIMATE.start_main_~x~4 2) 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 2) 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 2) 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) (- 4294967296))) 0)))) && assume !!(main_~x~4 % 4294967296 >= 10);main_~x~4 := main_~x~4 + 2; && 167#(and (< (mod (+ ULTIMATE.start_main_~x~4 2) 4294967296) 10) (= (ite (<= (mod (ite (and (not (= 0 (mod ULTIMATE.start_main_~x~4 2))) (< (mod (+ ULTIMATE.start_main_~x~4 2) 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 2) 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 2) 4294967296) 0)) (+ (mod ULTIMATE.start_main_~x~4 2) (- 2)) (mod ULTIMATE.start_main_~x~4 2)) 4294967296) (- 4294967296))) 0) (<= 10 (mod ULTIMATE.start_main_~x~4 4294967296))) was unknown! [2018-09-26 08:56:03,707 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 08:56:03,709 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 08:56:03,713 INFO L168 Benchmark]: Toolchain (without parser) took 69610.99 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: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-09-26 08:56:03,716 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 08:56:03,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.95 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 08:56:03,717 INFO L168 Benchmark]: Boogie Preprocessor took 27.54 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 08:56:03,718 INFO L168 Benchmark]: RCFGBuilder took 256.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 08:56:03,719 INFO L168 Benchmark]: TraceAbstraction took 69275.05 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-09-26 08:56:03,723 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 43.95 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 27.54 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 256.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 69275.05 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: 87.2 MB). Peak memory consumption was 87.2 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/overflow1.i_3.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-56-03-739.csv Received shutdown request...