java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 12:01:09,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 12:01:09,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 12:01:09,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-05 12:01:09,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 12:01:09,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 12:01:09,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 12:01:09,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-05 12:01:09,289 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 12:01:09,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 12:01:09,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-05 12:01:09,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-05 12:01:09,294 INFO L138 SettingsManager]: * Use SBE=true [2019-09-05 12:01:09,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 12:01:09,294 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 12:01:09,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-05 12:01:09,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 12:01:09,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 12:01:09,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 12:01:09,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 12:01:09,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 12:01:09,297 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 12:01:09,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 12:01:09,297 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-05 12:01:09,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 12:01:09,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 12:01:09,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 12:01:09,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-05 12:01:09,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-05 12:01:09,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 12:01:09,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 12:01:09,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 12:01:09,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-05 12:01:09,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-05 12:01:09,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 12:01:09,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 12:01:09,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-05 12:01:09,336 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 12:01:09,354 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 12:01:09,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 12:01:09,363 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 12:01:09,363 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 12:01:09,364 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2019-09-05 12:01:09,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de7578df1/fa650f8f07494b189d7896e92e485d13/FLAG8da422c0e [2019-09-05 12:01:09,847 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 12:01:09,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2019-09-05 12:01:09,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de7578df1/fa650f8f07494b189d7896e92e485d13/FLAG8da422c0e [2019-09-05 12:01:10,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de7578df1/fa650f8f07494b189d7896e92e485d13 [2019-09-05 12:01:10,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 12:01:10,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 12:01:10,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 12:01:10,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 12:01:10,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 12:01:10,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 12:01:10" (1/1) ... [2019-09-05 12:01:10,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ccb992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:01:10, skipping insertion in model container [2019-09-05 12:01:10,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 12:01:10" (1/1) ... [2019-09-05 12:01:10,241 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 12:01:10,257 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 12:01:10,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 12:01:10,435 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 12:01:10,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 12:01:10,463 INFO L192 MainTranslator]: Completed translation [2019-09-05 12:01:10,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:01:10 WrapperNode [2019-09-05 12:01:10,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 12:01:10,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 12:01:10,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 12:01:10,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 12:01:10,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:01:10" (1/1) ... [2019-09-05 12:01:10,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:01:10" (1/1) ... [2019-09-05 12:01:10,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:01:10" (1/1) ... [2019-09-05 12:01:10,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:01:10" (1/1) ... [2019-09-05 12:01:10,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:01:10" (1/1) ... [2019-09-05 12:01:10,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:01:10" (1/1) ... [2019-09-05 12:01:10,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:01:10" (1/1) ... [2019-09-05 12:01:10,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 12:01:10,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 12:01:10,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 12:01:10,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 12:01:10,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:01:10" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 12:01:10,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 12:01:10,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 12:01:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-05 12:01:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 12:01:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 12:01:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-05 12:01:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-05 12:01:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-05 12:01:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 12:01:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 12:01:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 12:01:10,781 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 12:01:10,781 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-05 12:01:10,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 12:01:10 BoogieIcfgContainer [2019-09-05 12:01:10,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 12:01:10,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-05 12:01:10,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-05 12:01:10,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-05 12:01:10,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.09 12:01:10" (1/3) ... [2019-09-05 12:01:10,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f1b109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 12:01:10, skipping insertion in model container [2019-09-05 12:01:10,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 12:01:10" (2/3) ... [2019-09-05 12:01:10,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f1b109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 12:01:10, skipping insertion in model container [2019-09-05 12:01:10,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 12:01:10" (3/3) ... [2019-09-05 12:01:10,796 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i [2019-09-05 12:01:10,806 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-05 12:01:10,826 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-05 12:01:10,846 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-05 12:01:10,888 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-05 12:01:10,889 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-05 12:01:10,891 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-05 12:01:10,891 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-05 12:01:10,891 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-05 12:01:10,891 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-05 12:01:10,892 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-05 12:01:10,892 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-05 12:01:10,892 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-05 12:01:10,913 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-05 12:01:10,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-05 12:01:10,918 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 12:01:10,919 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 12:01:10,920 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 12:01:10,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 12:01:10,925 INFO L82 PathProgramCache]: Analyzing trace with hash 578729635, now seen corresponding path program 1 times [2019-09-05 12:01:10,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 12:01:10,927 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 12:01:10,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:01:10,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:01:10,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:01:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:01:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:01:11,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-05 12:01:11,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-05 12:01:11,029 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-05 12:01:11,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-05 12:01:11,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-05 12:01:11,046 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-09-05 12:01:11,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 12:01:11,067 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2019-09-05 12:01:11,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-05 12:01:11,068 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-09-05 12:01:11,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 12:01:11,075 INFO L225 Difference]: With dead ends: 31 [2019-09-05 12:01:11,075 INFO L226 Difference]: Without dead ends: 12 [2019-09-05 12:01:11,078 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-05 12:01:11,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-09-05 12:01:11,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-09-05 12:01:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-09-05 12:01:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-09-05 12:01:11,116 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2019-09-05 12:01:11,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 12:01:11,116 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-09-05 12:01:11,117 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-05 12:01:11,117 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-09-05 12:01:11,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-05 12:01:11,117 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 12:01:11,118 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 12:01:11,118 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 12:01:11,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 12:01:11,119 INFO L82 PathProgramCache]: Analyzing trace with hash 575035551, now seen corresponding path program 1 times [2019-09-05 12:01:11,119 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 12:01:11,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 12:01:11,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:01:11,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:01:11,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:01:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:01:11,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:01:11,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-05 12:01:11,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-05 12:01:11,181 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-05 12:01:11,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-05 12:01:11,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-05 12:01:11,182 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2019-09-05 12:01:11,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 12:01:11,204 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-09-05 12:01:11,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-05 12:01:11,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-09-05 12:01:11,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 12:01:11,206 INFO L225 Difference]: With dead ends: 18 [2019-09-05 12:01:11,206 INFO L226 Difference]: Without dead ends: 13 [2019-09-05 12:01:11,208 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-05 12:01:11,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-09-05 12:01:11,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-09-05 12:01:11,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-09-05 12:01:11,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-09-05 12:01:11,218 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-09-05 12:01:11,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 12:01:11,219 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-09-05 12:01:11,219 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-05 12:01:11,219 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-09-05 12:01:11,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-05 12:01:11,220 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 12:01:11,220 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 12:01:11,221 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 12:01:11,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 12:01:11,221 INFO L82 PathProgramCache]: Analyzing trace with hash 681770644, now seen corresponding path program 1 times [2019-09-05 12:01:11,222 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 12:01:11,222 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 12:01:11,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:01:11,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:01:11,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:01:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:01:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:01:11,548 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-05 12:01:11,549 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-05 12:01:11,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:01:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:01:11,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-05 12:01:11,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-05 12:01:11,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-05 12:01:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:01:11,788 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-05 12:01:11,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2019-09-05 12:01:11,789 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-05 12:01:11,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-05 12:01:11,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-09-05 12:01:11,790 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 13 states. [2019-09-05 12:01:11,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 12:01:11,900 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-09-05 12:01:11,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-05 12:01:11,901 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 12 [2019-09-05 12:01:11,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 12:01:11,902 INFO L225 Difference]: With dead ends: 19 [2019-09-05 12:01:11,903 INFO L226 Difference]: Without dead ends: 14 [2019-09-05 12:01:11,904 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-09-05 12:01:11,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-09-05 12:01:11,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-09-05 12:01:11,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-09-05 12:01:11,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-09-05 12:01:11,909 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2019-09-05 12:01:11,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 12:01:11,909 INFO L475 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-09-05 12:01:11,909 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-05 12:01:11,909 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-09-05 12:01:11,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-05 12:01:11,910 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 12:01:11,910 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 12:01:11,911 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 12:01:11,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 12:01:11,911 INFO L82 PathProgramCache]: Analyzing trace with hash -304408769, now seen corresponding path program 2 times [2019-09-05 12:01:11,912 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-05 12:01:11,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-05 12:01:11,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:01:11,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 12:01:11,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 12:01:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 12:01:12,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-05 12:01:12,103 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-05 12:01:12,103 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-05 12:01:12,118 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-05 12:01:12,132 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-05 12:01:12,133 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-05 12:01:12,134 WARN L254 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 23 conjunts are in the unsatisfiable core [2019-09-05 12:01:12,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-05 12:01:12,395 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-05 12:01:12,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 12:01:12,450 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-05 12:01:12,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2019-09-05 12:01:12,452 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-05 12:01:12,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-05 12:01:12,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2019-09-05 12:01:12,454 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 14 states. [2019-09-05 12:01:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 12:01:12,690 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-09-05 12:01:12,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-05 12:01:12,690 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13 [2019-09-05 12:01:12,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 12:01:12,691 INFO L225 Difference]: With dead ends: 16 [2019-09-05 12:01:12,691 INFO L226 Difference]: Without dead ends: 0 [2019-09-05 12:01:12,692 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2019-09-05 12:01:12,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-05 12:01:12,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-05 12:01:12,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-05 12:01:12,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-05 12:01:12,693 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-09-05 12:01:12,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 12:01:12,693 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-05 12:01:12,694 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-05 12:01:12,694 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-05 12:01:12,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-05 12:01:12,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-05 12:01:12,859 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-05 12:01:12,860 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-05 12:01:12,860 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-05 12:01:12,860 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-05 12:01:12,860 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-05 12:01:12,860 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-05 12:01:12,860 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2019-09-05 12:01:12,861 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2019-09-05 12:01:12,861 INFO L443 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-09-05 12:01:12,861 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-09-05 12:01:12,861 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= .cse0 main_~hi~0) (<= main_~hi~0 .cse0) (<= main_~lo~0 main_~hi~0))) [2019-09-05 12:01:12,861 INFO L439 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (let ((.cse1 (+ main_~hi~0 1))) (let ((.cse0 (div .cse1 2))) (and (<= main_~lo~0 1) (<= .cse0 (+ main_~mid~0 1)) (<= .cse0 1) (<= 1 main_~lo~0) (= 0 (mod .cse1 2)) (< 0 .cse0)))) (let ((.cse2 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= .cse2 main_~hi~0) (<= main_~hi~0 main_~lo~0) (<= main_~hi~0 .cse2) (<= main_~lo~0 main_~hi~0)))) [2019-09-05 12:01:12,862 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 23) no Hoare annotation was computed. [2019-09-05 12:01:12,862 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-05 12:01:12,862 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-05 12:01:12,862 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-05 12:01:12,862 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-05 12:01:12,863 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-05 12:01:12,863 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-05 12:01:12,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.09 12:01:12 BoogieIcfgContainer [2019-09-05 12:01:12,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-05 12:01:12,880 INFO L168 Benchmark]: Toolchain (without parser) took 2655.65 ms. Allocated memory was 134.2 MB in the beginning and 228.1 MB in the end (delta: 93.8 MB). Free memory was 88.9 MB in the beginning and 140.5 MB in the end (delta: -51.6 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2019-09-05 12:01:12,881 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 134.2 MB. Free memory was 107.3 MB in the beginning and 107.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-05 12:01:12,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.99 ms. Allocated memory is still 134.2 MB. Free memory was 88.5 MB in the beginning and 79.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-05 12:01:12,885 INFO L168 Benchmark]: Boogie Preprocessor took 111.41 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 79.5 MB in the beginning and 177.9 MB in the end (delta: -98.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-09-05 12:01:12,887 INFO L168 Benchmark]: RCFGBuilder took 207.16 ms. Allocated memory is still 200.8 MB. Free memory was 177.9 MB in the beginning and 167.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-09-05 12:01:12,888 INFO L168 Benchmark]: TraceAbstraction took 2092.96 ms. Allocated memory was 200.8 MB in the beginning and 228.1 MB in the end (delta: 27.3 MB). Free memory was 166.7 MB in the beginning and 140.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 53.5 MB. Max. memory is 7.1 GB. [2019-09-05 12:01:12,897 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 134.2 MB. Free memory was 107.3 MB in the beginning and 107.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 238.99 ms. Allocated memory is still 134.2 MB. Free memory was 88.5 MB in the beginning and 79.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.41 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 79.5 MB in the beginning and 177.9 MB in the end (delta: -98.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 207.16 ms. Allocated memory is still 200.8 MB. Free memory was 177.9 MB in the beginning and 167.3 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2092.96 ms. Allocated memory was 200.8 MB in the beginning and 228.1 MB in the end (delta: 27.3 MB). Free memory was 166.7 MB in the beginning and 140.5 MB in the end (delta: 26.2 MB). Peak memory consumption was 53.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (2 * mid + lo <= hi && hi <= 2 * mid + lo) && lo <= hi - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 11 SDslu, 108 SDs, 0 SdLazy, 90 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 17 NumberOfFragments, 82 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 120 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 3770 SizeOfPredicates, 6 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...