/usr/bin/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/verifythis/tree_max_incorrect.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 22:12:14,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 22:12:14,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 22:12:14,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 22:12:14,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 22:12:14,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 22:12:14,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 22:12:14,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 22:12:14,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 22:12:14,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 22:12:14,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 22:12:14,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 22:12:14,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 22:12:14,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 22:12:14,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 22:12:14,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 22:12:14,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 22:12:14,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 22:12:14,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 22:12:14,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 22:12:14,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 22:12:14,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 22:12:14,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 22:12:14,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 22:12:14,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 22:12:14,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 22:12:14,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 22:12:14,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 22:12:14,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 22:12:14,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 22:12:14,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 22:12:14,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 22:12:14,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 22:12:14,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 22:12:14,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 22:12:14,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 22:12:14,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 22:12:14,175 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 22:12:14,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 22:12:14,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 22:12:14,177 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 22:12:14,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 22:12:14,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 22:12:14,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 22:12:14,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 22:12:14,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 22:12:14,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 22:12:14,178 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 22:12:14,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 22:12:14,179 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 22:12:14,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 22:12:14,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 22:12:14,179 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 22:12:14,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 22:12:14,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 22:12:14,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:12:14,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 22:12:14,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 22:12:14,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 22:12:14,181 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 22:12:14,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 22:12:14,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 22:12:14,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 22:12:14,485 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 22:12:14,486 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 22:12:14,487 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/tree_max_incorrect.c [2020-08-22 22:12:14,549 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303afaf88/2cbc74e9690b45af9b701a57df26b629/FLAG688f469a9 [2020-08-22 22:12:15,090 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 22:12:15,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/verifythis/tree_max_incorrect.c [2020-08-22 22:12:15,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303afaf88/2cbc74e9690b45af9b701a57df26b629/FLAG688f469a9 [2020-08-22 22:12:15,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303afaf88/2cbc74e9690b45af9b701a57df26b629 [2020-08-22 22:12:15,415 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 22:12:15,418 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 22:12:15,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 22:12:15,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 22:12:15,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 22:12:15,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:12:15" (1/1) ... [2020-08-22 22:12:15,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4550a7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:12:15, skipping insertion in model container [2020-08-22 22:12:15,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:12:15" (1/1) ... [2020-08-22 22:12:15,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 22:12:15,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 22:12:15,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:12:15,660 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 22:12:15,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:12:15,703 INFO L208 MainTranslator]: Completed translation [2020-08-22 22:12:15,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:12:15 WrapperNode [2020-08-22 22:12:15,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 22:12:15,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 22:12:15,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 22:12:15,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 22:12:15,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:12:15" (1/1) ... [2020-08-22 22:12:15,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:12:15" (1/1) ... [2020-08-22 22:12:15,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:12:15" (1/1) ... [2020-08-22 22:12:15,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:12:15" (1/1) ... [2020-08-22 22:12:15,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:12:15" (1/1) ... [2020-08-22 22:12:15,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:12:15" (1/1) ... [2020-08-22 22:12:15,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:12:15" (1/1) ... [2020-08-22 22:12:15,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 22:12:15,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 22:12:15,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 22:12:15,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 22:12:15,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:12:15" (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 [2020-08-22 22:12:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 22:12:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 22:12:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 22:12:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2020-08-22 22:12:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2020-08-22 22:12:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-08-22 22:12:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure task [2020-08-22 22:12:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 22:12:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 22:12:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 22:12:15,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 22:12:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-08-22 22:12:15,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 22:12:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 22:12:15,900 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2020-08-22 22:12:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 22:12:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 22:12:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 22:12:15,901 INFO L130 BoogieDeclarations]: Found specification of procedure max [2020-08-22 22:12:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 22:12:15,902 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-08-22 22:12:15,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 22:12:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure task [2020-08-22 22:12:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 22:12:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 22:12:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 22:12:15,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 22:12:16,263 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 22:12:16,264 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 22:12:16,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:12:16 BoogieIcfgContainer [2020-08-22 22:12:16,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 22:12:16,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 22:12:16,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 22:12:16,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 22:12:16,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:12:15" (1/3) ... [2020-08-22 22:12:16,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e17500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:12:16, skipping insertion in model container [2020-08-22 22:12:16,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:12:15" (2/3) ... [2020-08-22 22:12:16,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e17500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:12:16, skipping insertion in model container [2020-08-22 22:12:16,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:12:16" (3/3) ... [2020-08-22 22:12:16,290 INFO L109 eAbstractionObserver]: Analyzing ICFG tree_max_incorrect.c [2020-08-22 22:12:16,301 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 22:12:16,309 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 22:12:16,322 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 22:12:16,345 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 22:12:16,345 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 22:12:16,345 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 22:12:16,345 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 22:12:16,345 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 22:12:16,345 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 22:12:16,345 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 22:12:16,346 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 22:12:16,363 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-08-22 22:12:16,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-08-22 22:12:16,376 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:12:16,377 INFO L422 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] [2020-08-22 22:12:16,377 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:12:16,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:12:16,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1509507830, now seen corresponding path program 1 times [2020-08-22 22:12:16,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:12:16,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699707393] [2020-08-22 22:12:16,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:12:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:12:16,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:12:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:12:16,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 22:12:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:12:16,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 22:12:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:12:16,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 22:12:16,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699707393] [2020-08-22 22:12:16,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:12:16,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 22:12:16,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493782600] [2020-08-22 22:12:16,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 22:12:16,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:12:16,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 22:12:16,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-08-22 22:12:16,914 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 10 states. [2020-08-22 22:12:17,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:12:17,931 INFO L93 Difference]: Finished difference Result 134 states and 160 transitions. [2020-08-22 22:12:17,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 22:12:17,934 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-08-22 22:12:17,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:12:17,948 INFO L225 Difference]: With dead ends: 134 [2020-08-22 22:12:17,948 INFO L226 Difference]: Without dead ends: 74 [2020-08-22 22:12:17,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:12:17,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-22 22:12:18,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-08-22 22:12:18,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-08-22 22:12:18,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2020-08-22 22:12:18,020 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 33 [2020-08-22 22:12:18,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:12:18,021 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2020-08-22 22:12:18,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 22:12:18,021 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2020-08-22 22:12:18,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-08-22 22:12:18,025 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:12:18,025 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-08-22 22:12:18,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 22:12:18,026 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:12:18,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:12:18,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1181568947, now seen corresponding path program 1 times [2020-08-22 22:12:18,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:12:18,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523397139] [2020-08-22 22:12:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:12:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:12:18,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:12:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:12:18,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 22:12:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:12:18,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 22:12:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:12:18,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 22:12:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:12:18,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-22 22:12:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:12:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-22 22:12:18,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523397139] [2020-08-22 22:12:18,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:12:18,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 22:12:18,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828297041] [2020-08-22 22:12:18,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 22:12:18,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:12:18,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 22:12:18,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-08-22 22:12:18,408 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand 12 states. [2020-08-22 22:12:19,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:12:19,060 INFO L93 Difference]: Finished difference Result 99 states and 111 transitions. [2020-08-22 22:12:19,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 22:12:19,061 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-08-22 22:12:19,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:12:19,063 INFO L225 Difference]: With dead ends: 99 [2020-08-22 22:12:19,064 INFO L226 Difference]: Without dead ends: 76 [2020-08-22 22:12:19,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2020-08-22 22:12:19,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-08-22 22:12:19,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-08-22 22:12:19,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-08-22 22:12:19,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2020-08-22 22:12:19,086 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 54 [2020-08-22 22:12:19,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:12:19,087 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2020-08-22 22:12:19,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 22:12:19,087 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2020-08-22 22:12:19,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-08-22 22:12:19,091 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:12:19,091 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-08-22 22:12:19,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 22:12:19,091 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:12:19,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:12:19,092 INFO L82 PathProgramCache]: Analyzing trace with hash 2103557100, now seen corresponding path program 1 times [2020-08-22 22:12:19,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:12:19,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301129543] [2020-08-22 22:12:19,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:12:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 22:12:19,131 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 22:12:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 22:12:19,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 22:12:19,218 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 22:12:19,218 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 22:12:19,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 22:12:19,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 10:12:19 BoogieIcfgContainer [2020-08-22 22:12:19,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 22:12:19,277 INFO L168 Benchmark]: Toolchain (without parser) took 3858.89 ms. Allocated memory was 139.5 MB in the beginning and 244.8 MB in the end (delta: 105.4 MB). Free memory was 103.3 MB in the beginning and 127.0 MB in the end (delta: -23.7 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-08-22 22:12:19,278 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 22:12:19,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.40 ms. Allocated memory is still 139.5 MB. Free memory was 103.1 MB in the beginning and 92.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-08-22 22:12:19,280 INFO L168 Benchmark]: Boogie Preprocessor took 129.79 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 92.2 MB in the beginning and 180.9 MB in the end (delta: -88.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-08-22 22:12:19,281 INFO L168 Benchmark]: RCFGBuilder took 439.62 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 157.6 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-08-22 22:12:19,282 INFO L168 Benchmark]: TraceAbstraction took 2998.99 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 157.0 MB in the beginning and 127.0 MB in the end (delta: 30.0 MB). Peak memory consumption was 71.4 MB. Max. memory is 7.1 GB. [2020-08-22 22:12:19,286 INFO L336 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 139.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 282.40 ms. Allocated memory is still 139.5 MB. Free memory was 103.1 MB in the beginning and 92.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.79 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 92.2 MB in the beginning and 180.9 MB in the end (delta: -88.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 439.62 ms. Allocated memory is still 203.4 MB. Free memory was 180.9 MB in the beginning and 157.6 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2998.99 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 157.0 MB in the beginning and 127.0 MB in the end (delta: 30.0 MB). Peak memory consumption was 71.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L58] CALL, EXPR nondet_tree() [L18] COND FALSE !(__VERIFIER_nondet_bool()) VAL [__VERIFIER_nondet_bool()=0] [L21] struct node *n = (struct node *)malloc(sizeof(struct node)); VAL [malloc(sizeof(struct node))={-1:0}, n={-1:0}] [L22] n->data = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-2147483647, malloc(sizeof(struct node))={-1:0}, n={-1:0}] [L23] CALL, EXPR nondet_tree() [L18] COND TRUE __VERIFIER_nondet_bool() VAL [__VERIFIER_nondet_bool()=1] [L19] return 0; VAL [\result={0:0}] [L23] RET, EXPR nondet_tree() VAL [malloc(sizeof(struct node))={-1:0}, n={-1:0}, nondet_tree()={0:0}] [L23] n->left = nondet_tree() VAL [malloc(sizeof(struct node))={-1:0}, n={-1:0}, nondet_tree()={0:0}] [L24] CALL, EXPR nondet_tree() [L18] COND TRUE __VERIFIER_nondet_bool() VAL [__VERIFIER_nondet_bool()=1] [L19] return 0; VAL [\result={0:0}] [L24] RET, EXPR nondet_tree() VAL [malloc(sizeof(struct node))={-1:0}, n={-1:0}, nondet_tree()={0:0}] [L24] n->right = nondet_tree() VAL [malloc(sizeof(struct node))={-1:0}, n={-1:0}, nondet_tree()={0:0}] [L25] return n; VAL [\result={-1:0}, malloc(sizeof(struct node))={-1:0}, n={-1:0}] [L58] RET, EXPR nondet_tree() VAL [nondet_tree()={-1:0}] [L58] CALL task(nondet_tree()) VAL [n={-1:0}] [L53] CALL, EXPR max(n) VAL [n={-1:0}] [L30] COND FALSE !(!n) VAL [n={-1:0}, n={-1:0}] [L33] EXPR n->left VAL [n={-1:0}, n={-1:0}, n->left={0:0}] [L33] CALL, EXPR max(n->left) VAL [n={0:0}] [L30] COND TRUE !n VAL [n={0:0}, n={0:0}] [L31] return -2147483648; VAL [\result=-2147483648, n={0:0}, n={0:0}] [L33] RET, EXPR max(n->left) VAL [max(n->left)=-2147483648, n={-1:0}, n={-1:0}, n->left={0:0}] [L33] int a = max(n->left); VAL [a=-2147483648, max(n->left)=-2147483648, n={-1:0}, n={-1:0}, n->left={0:0}] [L34] EXPR n->right VAL [a=-2147483648, n={-1:0}, n={-1:0}, n->right={0:0}] [L34] CALL, EXPR max(n->right) VAL [n={0:0}] [L30] COND TRUE !n VAL [n={0:0}, n={0:0}] [L31] return -2147483648; VAL [\result=-2147483648, n={0:0}, n={0:0}] [L34] RET, EXPR max(n->right) VAL [a=-2147483648, max(n->right)=-2147483648, n={-1:0}, n={-1:0}, n->right={0:0}] [L34] int b = max(n->right); VAL [a=-2147483648, b=-2147483648, max(n->right)=-2147483648, n={-1:0}, n={-1:0}, n->right={0:0}] [L35] COND TRUE a >= b VAL [a=-2147483648, b=-2147483648, n={-1:0}, n={-1:0}] [L35] return a; VAL [\result=-2147483648, a=-2147483648, b=-2147483648, n={-1:0}, n={-1:0}] [L53] RET, EXPR max(n) VAL [max(n)=-2147483648, n={-1:0}, n={-1:0}] [L53] int a = max(n); VAL [a=-2147483648, max(n)=-2147483648, n={-1:0}, n={-1:0}] [L54] CALL check(n, a) VAL [\old(a)=-2147483648, n={-1:0}] [L41] COND TRUE \read(*n) VAL [\old(a)=-2147483648, a=-2147483648, n={-1:0}, n={-1:0}] [L42] EXPR n->data VAL [\old(a)=-2147483648, a=-2147483648, n={-1:0}, n={-1:0}, n->data=-2147483647] [L42] CALL __VERIFIER_assert(n->data <= a) VAL [\old(cond)=0] [L9] COND TRUE !cond VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 139 SDtfs, 269 SDslu, 374 SDs, 0 SdLazy, 921 SolverSat, 107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 13119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 11/11 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...