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-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:18:58,737 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:18:58,739 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:18:58,759 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:18:58,759 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:18:58,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:18:58,762 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:18:58,764 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:18:58,767 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:18:58,768 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:18:58,775 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 08:18:58,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 08:18:58,778 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 08:18:58,781 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 08:18:58,785 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 08:18:58,786 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 08:18:58,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 08:18:58,791 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 08:18:58,794 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 08:18:58,796 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 08:18:58,797 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 08:18:58,798 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 08:18:58,802 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-26 08:18:58,818 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-09-26 08:18:58,834 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:18:58,834 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:18:58,836 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 08:18:58,836 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 08:18:58,836 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:18:58,837 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-09-26 08:18:58,837 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 08:18:58,837 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:18:58,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:18:58,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:18:58,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:18:58,928 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:18:58,928 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:18:58,929 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl [2018-09-26 08:18:58,929 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl' [2018-09-26 08:18:58,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:18:58,997 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:18:58,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:18:58,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:18:58,998 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:18:59,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:18:58" (1/1) ... [2018-09-26 08:18:59,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:18:58" (1/1) ... [2018-09-26 08:18:59,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:18:59,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:18:59,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:18:59,047 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:18:59,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:18:58" (1/1) ... [2018-09-26 08:18:59,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:18:58" (1/1) ... [2018-09-26 08:18:59,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:18:58" (1/1) ... [2018-09-26 08:18:59,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:18:58" (1/1) ... [2018-09-26 08:18:59,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:18:58" (1/1) ... [2018-09-26 08:18:59,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:18:58" (1/1) ... [2018-09-26 08:18:59,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:18:58" (1/1) ... [2018-09-26 08:18:59,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:18:59,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:18:59,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:18:59,088 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:18:59,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:18:58" (1/1) ... [2018-09-26 08:18:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:18:59,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:18:59,917 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:18:59,919 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:18:59 BoogieIcfgContainer [2018-09-26 08:18:59,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:18:59,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:18:59,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:18:59,925 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:18:59,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:18:58" (1/2) ... [2018-09-26 08:18:59,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c3711c0 and model type pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:18:59, skipping insertion in model container [2018-09-26 08:18:59,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:18:59" (2/2) ... [2018-09-26 08:18:59,929 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl [2018-09-26 08:18:59,938 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:18:59,946 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:18:59,988 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:18:59,989 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:18:59,990 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:18:59,990 INFO L383 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-09-26 08:18:59,990 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:18:59,990 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:18:59,990 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:18:59,991 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:18:59,991 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:19:00,007 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 08:19:00,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:19:00,020 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:00,021 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:19:00,022 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:00,031 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:00,031 INFO L82 PathProgramCache]: Analyzing trace with hash 979518, now seen corresponding path program 1 times [2018-09-26 08:19:00,038 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:00,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:00,224 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:19:00,225 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 08:19:00,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:19:00,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:19:00,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:19:00,249 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-09-26 08:19:00,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:00,307 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-09-26 08:19:00,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:19:00,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-09-26 08:19:00,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:00,331 INFO L225 Difference]: With dead ends: 11 [2018-09-26 08:19:00,331 INFO L226 Difference]: Without dead ends: 8 [2018-09-26 08:19:00,335 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 08:19:00,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-26 08:19:00,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-09-26 08:19:00,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 08:19:00,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 08:19:00,365 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 08:19:00,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:00,365 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 08:19:00,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:19:00,366 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 08:19:00,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 08:19:00,366 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:00,366 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 08:19:00,367 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:00,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:00,367 INFO L82 PathProgramCache]: Analyzing trace with hash 941392015, now seen corresponding path program 1 times [2018-09-26 08:19:00,367 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:00,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:00,489 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:00,489 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-09-26 08:19:00,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 08:19:00,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 08:19:00,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-26 08:19:00,492 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-09-26 08:19:00,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:00,557 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-09-26 08:19:00,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 08:19:00,557 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-09-26 08:19:00,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:00,558 INFO L225 Difference]: With dead ends: 12 [2018-09-26 08:19:00,558 INFO L226 Difference]: Without dead ends: 10 [2018-09-26 08:19:00,559 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:19:00,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-09-26 08:19:00,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-09-26 08:19:00,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-26 08:19:00,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-09-26 08:19:00,563 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-09-26 08:19:00,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:00,564 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-09-26 08:19:00,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 08:19:00,564 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-09-26 08:19:00,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 08:19:00,565 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:00,565 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-09-26 08:19:00,566 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:00,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:00,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1560297824, now seen corresponding path program 2 times [2018-09-26 08:19:00,566 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:00,710 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:00,711 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:00,711 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-09-26 08:19:00,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 08:19:00,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 08:19:00,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-09-26 08:19:00,714 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-09-26 08:19:00,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:00,813 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-09-26 08:19:00,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-26 08:19:00,813 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-09-26 08:19:00,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:00,814 INFO L225 Difference]: With dead ends: 14 [2018-09-26 08:19:00,815 INFO L226 Difference]: Without dead ends: 12 [2018-09-26 08:19:00,816 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-26 08:19:00,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-09-26 08:19:00,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2018-09-26 08:19:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-26 08:19:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-09-26 08:19:00,825 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-09-26 08:19:00,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:00,827 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-09-26 08:19:00,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 08:19:00,827 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-09-26 08:19:00,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-26 08:19:00,828 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:00,830 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-09-26 08:19:00,831 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:00,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:00,832 INFO L82 PathProgramCache]: Analyzing trace with hash -502547343, now seen corresponding path program 3 times [2018-09-26 08:19:00,832 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:01,013 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:01,014 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:01,014 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-09-26 08:19:01,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 08:19:01,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 08:19:01,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-09-26 08:19:01,018 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2018-09-26 08:19:01,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:01,134 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-09-26 08:19:01,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 08:19:01,135 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-09-26 08:19:01,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:01,139 INFO L225 Difference]: With dead ends: 16 [2018-09-26 08:19:01,139 INFO L226 Difference]: Without dead ends: 14 [2018-09-26 08:19:01,140 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-09-26 08:19:01,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-09-26 08:19:01,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-09-26 08:19:01,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-09-26 08:19:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-09-26 08:19:01,148 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-09-26 08:19:01,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:01,148 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-09-26 08:19:01,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 08:19:01,149 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-09-26 08:19:01,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-26 08:19:01,150 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:01,150 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2018-09-26 08:19:01,150 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:01,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:01,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1911584254, now seen corresponding path program 4 times [2018-09-26 08:19:01,151 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:01,251 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-26 08:19:01,251 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:01,251 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-09-26 08:19:01,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 08:19:01,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 08:19:01,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-26 08:19:01,253 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 8 states. [2018-09-26 08:19:01,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:01,308 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-09-26 08:19:01,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 08:19:01,309 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2018-09-26 08:19:01,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:01,310 INFO L225 Difference]: With dead ends: 17 [2018-09-26 08:19:01,310 INFO L226 Difference]: Without dead ends: 15 [2018-09-26 08:19:01,311 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-26 08:19:01,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-09-26 08:19:01,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-09-26 08:19:01,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-09-26 08:19:01,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-09-26 08:19:01,316 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-09-26 08:19:01,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:01,316 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-09-26 08:19:01,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 08:19:01,317 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-09-26 08:19:01,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-26 08:19:01,318 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:01,318 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2018-09-26 08:19:01,318 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:01,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:01,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1213609811, now seen corresponding path program 5 times [2018-09-26 08:19:01,319 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-09-26 08:19:01,457 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:01,457 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-09-26 08:19:01,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:19:01,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:19:01,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:19:01,458 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2018-09-26 08:19:01,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:01,478 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-09-26 08:19:01,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:19:01,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-09-26 08:19:01,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:01,480 INFO L225 Difference]: With dead ends: 15 [2018-09-26 08:19:01,480 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 08:19:01,481 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 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 08:19:01,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 08:19:01,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 08:19:01,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 08:19:01,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 08:19:01,484 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-09-26 08:19:01,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:01,484 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 08:19:01,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:19:01,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 08:19:01,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 08:19:01,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 08:19:01,543 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 57 313) the Hoare annotation is: false [2018-09-26 08:19:01,543 INFO L426 ceAbstractionStarter]: For program point L250(lines 250 260) no Hoare annotation was computed. [2018-09-26 08:19:01,545 INFO L422 ceAbstractionStarter]: At program point L310(lines 200 310) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse1 (<= 0 ~r1))) (or (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) (<= ~send2 127) (= ~mode2 (* 256 (div ~mode2 256))) (<= 0 ~send2) (= 0 (+ ~nomsg 1)) .cse1) (and (= ~mode1 1) .cse0 (= ULTIMATE.start_assert_~arg 1) (not (= ~p2_old ~nomsg)) (= ~mode3 1) .cse1))) [2018-09-26 08:19:01,545 INFO L426 ceAbstractionStarter]: For program point L277(lines 277 284) no Hoare annotation was computed. [2018-09-26 08:19:01,545 INFO L422 ceAbstractionStarter]: At program point L304(lines 304 311) the Hoare annotation is: false [2018-09-26 08:19:01,546 INFO L426 ceAbstractionStarter]: For program point L207(lines 207 215) no Hoare annotation was computed. [2018-09-26 08:19:01,546 INFO L422 ceAbstractionStarter]: At program point L298(lines 298 305) the Hoare annotation is: (and (= ~mode1 1) (<= ~r1 0) (= ULTIMATE.start_assert_~arg 1) (not (= ~p2_old ~nomsg)) (= ~mode3 1) (<= 0 ~r1)) [2018-09-26 08:19:01,546 INFO L426 ceAbstractionStarter]: For program point L265(lines 259 266) no Hoare annotation was computed. [2018-09-26 08:19:01,546 INFO L426 ceAbstractionStarter]: For program point L288(lines 283 289) no Hoare annotation was computed. [2018-09-26 08:19:01,547 INFO L426 ceAbstractionStarter]: For program point L222(lines 214 223) no Hoare annotation was computed. [2018-09-26 08:19:01,547 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 57 313) the Hoare annotation is: true [2018-09-26 08:19:01,547 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 57 313) no Hoare annotation was computed. [2018-09-26 08:19:01,547 INFO L426 ceAbstractionStarter]: For program point L245(lines 236 246) no Hoare annotation was computed. [2018-09-26 08:19:01,550 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 312) the Hoare annotation is: false [2018-09-26 08:19:01,551 INFO L426 ceAbstractionStarter]: For program point L227(lines 227 237) no Hoare annotation was computed. [2018-09-26 08:19:01,568 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:19:01 BoogieIcfgContainer [2018-09-26 08:19:01,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:19:01,570 INFO L168 Benchmark]: Toolchain (without parser) took 2575.49 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: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-09-26 08:19:01,572 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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 08:19:01,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.87 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 08:19:01,573 INFO L168 Benchmark]: Boogie Preprocessor took 40.33 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 08:19:01,574 INFO L168 Benchmark]: RCFGBuilder took 832.12 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 08:19:01,575 INFO L168 Benchmark]: TraceAbstraction took 1646.92 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-26 08:19:01,579 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 0.20 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 48.87 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 40.33 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 832.12 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 1646.92 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 312]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 298]: Loop Invariant Derived loop invariant: ((((~mode1 == 1 && ~r1 <= 0) && assert_~arg == 1) && !(~p2_old == ~nomsg)) && ~mode3 == 1) && 0 <= ~r1 - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: (((((((~r1 <= 0 && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && ~send2 <= 127) && ~mode2 == 256 * (~mode2 / 256)) && 0 <= ~send2) && 0 == ~nomsg + 1) && 0 <= ~r1) || (((((~mode1 == 1 && ~r1 <= 0) && assert_~arg == 1) && !(~p2_old == ~nomsg)) && ~mode3 == 1) && 0 <= ~r1) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 19 SDslu, 34 SDs, 0 SdLazy, 94 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 84 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2410 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 35/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-19-01-593.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c_9.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-19-01-593.csv Received shutdown request...