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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 16:31:02,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 16:31:02,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 16:31:02,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-02 16:31:02,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 16:31:02,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 16:31:02,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 16:31:02,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 16:31:02,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 16:31:02,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 16:31:02,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 16:31:02,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 16:31:02,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 16:31:02,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 16:31:02,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 16:31:02,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 16:31:02,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 16:31:02,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 16:31:02,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 16:31:02,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 16:31:02,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-02 16:31:02,147 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 16:31:02,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 16:31:02,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-02 16:31:02,148 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-02 16:31:02,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-02 16:31:02,150 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-02 16:31:02,150 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-02 16:31:02,150 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-02 16:31:02,150 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-02 16:31:02,150 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-02 16:31:02,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 16:31:02,153 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 16:31:02,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 16:31:02,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 16:31:02,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 16:31:02,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 16:31:02,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 16:31:02,154 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 16:31:02,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 16:31:02,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 16:31:02,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 16:31:02,155 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-02 16:31:02,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 16:31:02,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 16:31:02,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 16:31:02,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 16:31:02,156 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-02 16:31:02,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 16:31:02,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 16:31:02,157 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-02 16:31:02,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 16:31:02,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 16:31:02,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 16:31:02,234 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 16:31:02,235 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 16:31:02,236 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label18.c [2019-10-02 16:31:02,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b739a3c/0547407bf6d54f07b2d151c6ee975875/FLAG67aae9ef3 [2019-10-02 16:31:02,847 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 16:31:02,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label18.c [2019-10-02 16:31:02,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b739a3c/0547407bf6d54f07b2d151c6ee975875/FLAG67aae9ef3 [2019-10-02 16:31:03,127 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b739a3c/0547407bf6d54f07b2d151c6ee975875 [2019-10-02 16:31:03,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 16:31:03,138 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 16:31:03,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 16:31:03,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 16:31:03,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 16:31:03,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:31:03" (1/1) ... [2019-10-02 16:31:03,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35da1448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:31:03, skipping insertion in model container [2019-10-02 16:31:03,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 04:31:03" (1/1) ... [2019-10-02 16:31:03,155 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 16:31:03,212 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 16:31:03,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:31:03,714 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 16:31:03,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 16:31:03,859 INFO L192 MainTranslator]: Completed translation [2019-10-02 16:31:03,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:31:03 WrapperNode [2019-10-02 16:31:03,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 16:31:03,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 16:31:03,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 16:31:03,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 16:31:03,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:31:03" (1/1) ... [2019-10-02 16:31:03,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:31:03" (1/1) ... [2019-10-02 16:31:03,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:31:03" (1/1) ... [2019-10-02 16:31:03,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:31:03" (1/1) ... [2019-10-02 16:31:03,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:31:03" (1/1) ... [2019-10-02 16:31:03,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:31:03" (1/1) ... [2019-10-02 16:31:03,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:31:03" (1/1) ... [2019-10-02 16:31:03,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 16:31:03,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 16:31:03,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 16:31:03,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 16:31:03,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:31:03" (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 [2019-10-02 16:31:04,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 16:31:04,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 16:31:04,021 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-02 16:31:04,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 16:31:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-02 16:31:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 16:31:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 16:31:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-02 16:31:04,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 16:31:04,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 16:31:04,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 16:31:05,131 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 16:31:05,131 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-02 16:31:05,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:31:05 BoogieIcfgContainer [2019-10-02 16:31:05,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 16:31:05,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 16:31:05,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 16:31:05,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 16:31:05,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 04:31:03" (1/3) ... [2019-10-02 16:31:05,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24183d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:31:05, skipping insertion in model container [2019-10-02 16:31:05,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 04:31:03" (2/3) ... [2019-10-02 16:31:05,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24183d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 04:31:05, skipping insertion in model container [2019-10-02 16:31:05,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 04:31:05" (3/3) ... [2019-10-02 16:31:05,141 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label18.c [2019-10-02 16:31:05,150 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 16:31:05,159 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 16:31:05,175 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 16:31:05,202 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 16:31:05,203 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-02 16:31:05,203 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 16:31:05,203 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 16:31:05,204 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 16:31:05,204 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 16:31:05,204 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 16:31:05,204 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 16:31:05,233 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2019-10-02 16:31:05,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-02 16:31:05,254 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:31:05,255 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:31:05,257 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:31:05,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:31:05,263 INFO L82 PathProgramCache]: Analyzing trace with hash 652609782, now seen corresponding path program 1 times [2019-10-02 16:31:05,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:31:05,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:31:05,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:31:05,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:31:05,314 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:31:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:31:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:31:05,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:31:05,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 16:31:05,760 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:31:05,769 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 16:31:05,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 16:31:05,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:31:05,787 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2019-10-02 16:31:06,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:31:06,970 INFO L93 Difference]: Finished difference Result 497 states and 763 transitions. [2019-10-02 16:31:06,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 16:31:06,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 106 [2019-10-02 16:31:06,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:31:06,992 INFO L225 Difference]: With dead ends: 497 [2019-10-02 16:31:06,992 INFO L226 Difference]: Without dead ends: 413 [2019-10-02 16:31:06,994 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:31:07,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-02 16:31:07,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 278. [2019-10-02 16:31:07,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-10-02 16:31:07,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 406 transitions. [2019-10-02 16:31:07,085 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 406 transitions. Word has length 106 [2019-10-02 16:31:07,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:31:07,087 INFO L475 AbstractCegarLoop]: Abstraction has 278 states and 406 transitions. [2019-10-02 16:31:07,087 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 16:31:07,087 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 406 transitions. [2019-10-02 16:31:07,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-02 16:31:07,099 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:31:07,099 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:31:07,099 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:31:07,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:31:07,100 INFO L82 PathProgramCache]: Analyzing trace with hash -913625651, now seen corresponding path program 1 times [2019-10-02 16:31:07,100 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:31:07,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:31:07,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:31:07,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:31:07,103 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:31:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:31:07,234 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:31:07,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:31:07,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 16:31:07,235 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:31:07,237 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 16:31:07,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 16:31:07,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-02 16:31:07,239 INFO L87 Difference]: Start difference. First operand 278 states and 406 transitions. Second operand 6 states. [2019-10-02 16:31:08,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:31:08,037 INFO L93 Difference]: Finished difference Result 431 states and 625 transitions. [2019-10-02 16:31:08,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 16:31:08,038 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2019-10-02 16:31:08,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:31:08,043 INFO L225 Difference]: With dead ends: 431 [2019-10-02 16:31:08,043 INFO L226 Difference]: Without dead ends: 431 [2019-10-02 16:31:08,044 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-02 16:31:08,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-02 16:31:08,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 417. [2019-10-02 16:31:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2019-10-02 16:31:08,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 597 transitions. [2019-10-02 16:31:08,090 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 597 transitions. Word has length 116 [2019-10-02 16:31:08,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:31:08,091 INFO L475 AbstractCegarLoop]: Abstraction has 417 states and 597 transitions. [2019-10-02 16:31:08,091 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 16:31:08,091 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 597 transitions. [2019-10-02 16:31:08,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-02 16:31:08,097 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:31:08,098 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:31:08,098 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:31:08,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:31:08,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1757329551, now seen corresponding path program 1 times [2019-10-02 16:31:08,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:31:08,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:31:08,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:31:08,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:31:08,102 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:31:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:31:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:31:08,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:31:08,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 16:31:08,323 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:31:08,326 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 16:31:08,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 16:31:08,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:31:08,327 INFO L87 Difference]: Start difference. First operand 417 states and 597 transitions. Second operand 4 states. [2019-10-02 16:31:09,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:31:09,342 INFO L93 Difference]: Finished difference Result 687 states and 941 transitions. [2019-10-02 16:31:09,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 16:31:09,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-10-02 16:31:09,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:31:09,347 INFO L225 Difference]: With dead ends: 687 [2019-10-02 16:31:09,347 INFO L226 Difference]: Without dead ends: 687 [2019-10-02 16:31:09,348 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-02 16:31:09,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2019-10-02 16:31:09,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 552. [2019-10-02 16:31:09,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2019-10-02 16:31:09,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 762 transitions. [2019-10-02 16:31:09,368 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 762 transitions. Word has length 117 [2019-10-02 16:31:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:31:09,369 INFO L475 AbstractCegarLoop]: Abstraction has 552 states and 762 transitions. [2019-10-02 16:31:09,369 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 16:31:09,369 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 762 transitions. [2019-10-02 16:31:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-02 16:31:09,372 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 16:31:09,372 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 16:31:09,372 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 16:31:09,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 16:31:09,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1567219207, now seen corresponding path program 1 times [2019-10-02 16:31:09,373 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-02 16:31:09,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:31:09,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 16:31:09,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 16:31:09,374 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-02 16:31:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 16:31:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 16:31:09,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 16:31:09,482 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 16:31:09,482 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-02 16:31:09,483 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 16:31:09,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 16:31:09,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 16:31:09,483 INFO L87 Difference]: Start difference. First operand 552 states and 762 transitions. Second operand 3 states. [2019-10-02 16:31:10,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 16:31:10,040 INFO L93 Difference]: Finished difference Result 957 states and 1281 transitions. [2019-10-02 16:31:10,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 16:31:10,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-02 16:31:10,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 16:31:10,043 INFO L225 Difference]: With dead ends: 957 [2019-10-02 16:31:10,043 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 16:31:10,043 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 16:31:10,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 16:31:10,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 16:31:10,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 16:31:10,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 16:31:10,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2019-10-02 16:31:10,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 16:31:10,045 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 16:31:10,045 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 16:31:10,045 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 16:31:10,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 16:31:10,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 04:31:10 BoogieIcfgContainer [2019-10-02 16:31:10,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 16:31:10,054 INFO L168 Benchmark]: Toolchain (without parser) took 6914.60 ms. Allocated memory was 129.5 MB in the beginning and 354.4 MB in the end (delta: 224.9 MB). Free memory was 83.7 MB in the beginning and 92.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 215.9 MB. Max. memory is 7.1 GB. [2019-10-02 16:31:10,055 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 129.5 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 16:31:10,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.22 ms. Allocated memory was 129.5 MB in the beginning and 198.2 MB in the end (delta: 68.7 MB). Free memory was 83.5 MB in the beginning and 153.1 MB in the end (delta: -69.6 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2019-10-02 16:31:10,057 INFO L168 Benchmark]: Boogie Preprocessor took 99.88 ms. Allocated memory is still 198.2 MB. Free memory was 153.1 MB in the beginning and 148.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-10-02 16:31:10,058 INFO L168 Benchmark]: RCFGBuilder took 1171.99 ms. Allocated memory was 198.2 MB in the beginning and 215.0 MB in the end (delta: 16.8 MB). Free memory was 148.3 MB in the beginning and 162.1 MB in the end (delta: -13.8 MB). Peak memory consumption was 88.6 MB. Max. memory is 7.1 GB. [2019-10-02 16:31:10,059 INFO L168 Benchmark]: TraceAbstraction took 4916.69 ms. Allocated memory was 215.0 MB in the beginning and 354.4 MB in the end (delta: 139.5 MB). Free memory was 162.1 MB in the beginning and 92.7 MB in the end (delta: 69.4 MB). Peak memory consumption was 208.9 MB. Max. memory is 7.1 GB. [2019-10-02 16:31:10,063 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 129.5 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.22 ms. Allocated memory was 129.5 MB in the beginning and 198.2 MB in the end (delta: 68.7 MB). Free memory was 83.5 MB in the beginning and 153.1 MB in the end (delta: -69.6 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.88 ms. Allocated memory is still 198.2 MB. Free memory was 153.1 MB in the beginning and 148.3 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1171.99 ms. Allocated memory was 198.2 MB in the beginning and 215.0 MB in the end (delta: 16.8 MB). Free memory was 148.3 MB in the beginning and 162.1 MB in the end (delta: -13.8 MB). Peak memory consumption was 88.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4916.69 ms. Allocated memory was 215.0 MB in the beginning and 354.4 MB in the end (delta: 139.5 MB). Free memory was 162.1 MB in the beginning and 92.7 MB in the end (delta: 69.4 MB). Peak memory consumption was 208.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 476]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 331 SDtfs, 939 SDslu, 109 SDs, 0 SdLazy, 2328 SolverSat, 536 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=552occurred in iteration=3, 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 284 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 460 NumberOfCodeBlocks, 460 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 456 ConstructedInterpolants, 0 QuantifiedInterpolants, 197894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 27/27 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...