/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/loops/veris.c_sendmail_tTflag_arr_one_loop.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:17:12,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:17:12,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:17:12,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 00:17:12,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-24 00:17:12,284 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:17:12,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:17:12,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:17:12,289 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:17:12,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:17:12,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:17:12,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:17:12,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:17:12,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:17:12,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:17:12,292 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:17:12,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:17:12,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:17:12,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:17:12,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:17:12,293 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:17:12,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:17:12,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:17:12,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:17:12,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:17:12,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:17:12,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:17:12,295 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:17:12,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:17:12,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:17:12,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:17:12,731 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:17:12,735 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:17:12,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2021-02-24 00:17:12,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/159a6fd06/71114bb535f245a89ed1fd02af0a01fa/FLAG33d396a72 [2021-02-24 00:17:13,529 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:17:13,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2021-02-24 00:17:13,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/159a6fd06/71114bb535f245a89ed1fd02af0a01fa/FLAG33d396a72 [2021-02-24 00:17:13,874 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/159a6fd06/71114bb535f245a89ed1fd02af0a01fa [2021-02-24 00:17:13,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:17:13,895 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:17:13,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:17:13,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:17:13,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:17:13,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:17:13" (1/1) ... [2021-02-24 00:17:13,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8b1fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:13, skipping insertion in model container [2021-02-24 00:17:13,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:17:13" (1/1) ... [2021-02-24 00:17:13,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:17:13,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:17:14,168 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c[386,399] [2021-02-24 00:17:14,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:17:14,209 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:17:14,227 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c[386,399] [2021-02-24 00:17:14,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:17:14,273 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:17:14,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14 WrapperNode [2021-02-24 00:17:14,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:17:14,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:17:14,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:17:14,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:17:14,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (1/1) ... [2021-02-24 00:17:14,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:17:14,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:17:14,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:17:14,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:17:14,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (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 [2021-02-24 00:17:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:17:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:17:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:17:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 00:17:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:17:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:17:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:17:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:17:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:17:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-02-24 00:17:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 00:17:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:17:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:17:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:17:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:17:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:17:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:17:14,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:17:14,918 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:17:14,918 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-24 00:17:14,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:17:14 BoogieIcfgContainer [2021-02-24 00:17:14,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:17:14,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:17:14,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:17:14,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:17:14,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:17:13" (1/3) ... [2021-02-24 00:17:14,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370b55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:17:14, skipping insertion in model container [2021-02-24 00:17:14,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:14" (2/3) ... [2021-02-24 00:17:14,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370b55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:17:14, skipping insertion in model container [2021-02-24 00:17:14,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:17:14" (3/3) ... [2021-02-24 00:17:14,938 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail_tTflag_arr_one_loop.c [2021-02-24 00:17:14,945 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:17:14,950 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:17:14,970 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:17:14,995 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:17:14,995 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:17:14,995 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:17:14,995 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:17:14,996 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:17:14,996 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:17:14,996 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:17:14,996 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:17:15,013 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2021-02-24 00:17:15,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-24 00:17:15,023 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:15,024 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] [2021-02-24 00:17:15,025 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:15,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:15,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1609627532, now seen corresponding path program 1 times [2021-02-24 00:17:15,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:15,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479245860] [2021-02-24 00:17:15,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:15,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:15,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:15,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:15,336 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:15,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:17:15,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479245860] [2021-02-24 00:17:15,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:17:15,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 00:17:15,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057572719] [2021-02-24 00:17:15,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 00:17:15,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:15,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 00:17:15,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:17:15,373 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 3 states. [2021-02-24 00:17:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:17:15,638 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2021-02-24 00:17:15,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 00:17:15,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-02-24 00:17:15,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:17:15,652 INFO L225 Difference]: With dead ends: 87 [2021-02-24 00:17:15,652 INFO L226 Difference]: Without dead ends: 47 [2021-02-24 00:17:15,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:17:15,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-02-24 00:17:15,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-02-24 00:17:15,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-02-24 00:17:15,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2021-02-24 00:17:15,732 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 32 [2021-02-24 00:17:15,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:17:15,733 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2021-02-24 00:17:15,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 00:17:15,733 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2021-02-24 00:17:15,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-24 00:17:15,737 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:15,737 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] [2021-02-24 00:17:15,738 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:17:15,738 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:15,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:15,739 INFO L82 PathProgramCache]: Analyzing trace with hash 531011061, now seen corresponding path program 1 times [2021-02-24 00:17:15,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:15,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417268396] [2021-02-24 00:17:15,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:15,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:15,849 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,850 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:15,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:15,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:15,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:15,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:15,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 00:17:15,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417268396] [2021-02-24 00:17:15,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:17:15,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 00:17:15,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811176929] [2021-02-24 00:17:15,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 00:17:15,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:15,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 00:17:15,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-24 00:17:15,933 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 5 states. [2021-02-24 00:17:16,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:17:16,144 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2021-02-24 00:17:16,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 00:17:16,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2021-02-24 00:17:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:17:16,146 INFO L225 Difference]: With dead ends: 47 [2021-02-24 00:17:16,146 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:17:16,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:17:16,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:17:16,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:17:16,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:17:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:17:16,149 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-02-24 00:17:16,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:17:16,150 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:17:16,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 00:17:16,150 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:17:16,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:17:16,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:17:16,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:17:16,435 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-24 00:17:16,435 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-24 00:17:16,436 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-24 00:17:16,436 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-24 00:17:16,436 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-24 00:17:16,436 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:17:16,436 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-24 00:17:16,437 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 00:17:16,437 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-24 00:17:16,437 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-24 00:17:16,437 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-24 00:17:16,437 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-24 00:17:16,438 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:17:16,438 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 00:17:16,438 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 00:17:16,438 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 00:17:16,438 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 00:17:16,438 INFO L192 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: true [2021-02-24 00:17:16,439 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-24 00:17:16,439 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 12 39) the Hoare annotation is: true [2021-02-24 00:17:16,439 INFO L192 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: true [2021-02-24 00:17:16,439 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-24 00:17:16,439 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-24 00:17:16,439 INFO L192 CegarLoopUtils]: At program point L28-2(line 28) the Hoare annotation is: true [2021-02-24 00:17:16,440 INFO L192 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: true [2021-02-24 00:17:16,440 INFO L192 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: true [2021-02-24 00:17:16,440 INFO L192 CegarLoopUtils]: At program point L20-3(lines 20 22) the Hoare annotation is: true [2021-02-24 00:17:16,440 INFO L192 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: true [2021-02-24 00:17:16,440 INFO L192 CegarLoopUtils]: At program point L20-4(line 20) the Hoare annotation is: true [2021-02-24 00:17:16,441 INFO L192 CegarLoopUtils]: At program point L20-5(line 20) the Hoare annotation is: true [2021-02-24 00:17:16,441 INFO L192 CegarLoopUtils]: At program point L20-6(lines 20 22) the Hoare annotation is: true [2021-02-24 00:17:16,441 INFO L192 CegarLoopUtils]: At program point L20-7(lines 20 22) the Hoare annotation is: true [2021-02-24 00:17:16,441 INFO L192 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: true [2021-02-24 00:17:16,441 INFO L192 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-02-24 00:17:16,441 INFO L192 CegarLoopUtils]: At program point L33-1(line 33) the Hoare annotation is: true [2021-02-24 00:17:16,441 INFO L192 CegarLoopUtils]: At program point L33-2(line 33) the Hoare annotation is: true [2021-02-24 00:17:16,442 INFO L192 CegarLoopUtils]: At program point L29-2(lines 29 35) the Hoare annotation is: true [2021-02-24 00:17:16,442 INFO L192 CegarLoopUtils]: At program point L29-3(lines 29 35) the Hoare annotation is: true [2021-02-24 00:17:16,442 INFO L192 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: true [2021-02-24 00:17:16,442 INFO L192 CegarLoopUtils]: At program point L21-1(line 21) the Hoare annotation is: true [2021-02-24 00:17:16,442 INFO L192 CegarLoopUtils]: At program point L21-2(line 21) the Hoare annotation is: true [2021-02-24 00:17:16,442 INFO L192 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: true [2021-02-24 00:17:16,443 INFO L192 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: true [2021-02-24 00:17:16,443 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 12 39) the Hoare annotation is: true [2021-02-24 00:17:16,443 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-24 00:17:16,443 INFO L192 CegarLoopUtils]: At program point L34-1(line 34) the Hoare annotation is: true [2021-02-24 00:17:16,443 INFO L192 CegarLoopUtils]: At program point L34-2(line 34) the Hoare annotation is: true [2021-02-24 00:17:16,443 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 12 39) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-24 00:17:16,444 INFO L192 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: true [2021-02-24 00:17:16,444 INFO L192 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: true [2021-02-24 00:17:16,444 INFO L192 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: true [2021-02-24 00:17:16,444 INFO L192 CegarLoopUtils]: At program point L14-1(line 14) the Hoare annotation is: true [2021-02-24 00:17:16,444 INFO L192 CegarLoopUtils]: At program point L14-2(line 14) the Hoare annotation is: true [2021-02-24 00:17:16,444 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2021-02-24 00:17:16,445 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: true [2021-02-24 00:17:16,445 INFO L185 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2021-02-24 00:17:16,445 INFO L185 CegarLoopUtils]: At program point L7(lines 7 9) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= __VERIFIER_assert_~cond 1)) [2021-02-24 00:17:16,445 INFO L185 CegarLoopUtils]: At program point L8-1(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2021-02-24 00:17:16,446 INFO L192 CegarLoopUtils]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2021-02-24 00:17:16,446 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2021-02-24 00:17:16,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:17:16 BoogieIcfgContainer [2021-02-24 00:17:16,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:17:16,461 INFO L168 Benchmark]: Toolchain (without parser) took 2578.16 ms. Allocated memory was 174.1 MB in the beginning and 209.7 MB in the end (delta: 35.7 MB). Free memory was 149.3 MB in the beginning and 147.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 38.3 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:16,462 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 174.1 MB. Free memory is still 147.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:17:16,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.83 ms. Allocated memory is still 174.1 MB. Free memory was 148.0 MB in the beginning and 138.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:16,464 INFO L168 Benchmark]: Boogie Preprocessor took 72.22 ms. Allocated memory is still 174.1 MB. Free memory was 138.4 MB in the beginning and 136.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:16,465 INFO L168 Benchmark]: RCFGBuilder took 571.59 ms. Allocated memory is still 174.1 MB. Free memory was 136.9 MB in the beginning and 155.1 MB in the end (delta: -18.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:16,466 INFO L168 Benchmark]: TraceAbstraction took 1531.10 ms. Allocated memory was 174.1 MB in the beginning and 209.7 MB in the end (delta: 35.7 MB). Free memory was 155.1 MB in the beginning and 147.6 MB in the end (delta: 7.5 MB). Peak memory consumption was 42.7 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:16,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 174.1 MB. Free memory is still 147.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 374.83 ms. Allocated memory is still 174.1 MB. Free memory was 148.0 MB in the beginning and 138.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 72.22 ms. Allocated memory is still 174.1 MB. Free memory was 138.4 MB in the beginning and 136.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 571.59 ms. Allocated memory is still 174.1 MB. Free memory was 136.9 MB in the beginning and 155.1 MB in the end (delta: -18.2 MB). Peak memory consumption was 20.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1531.10 ms. Allocated memory was 174.1 MB in the beginning and 209.7 MB in the end (delta: 35.7 MB). Free memory was 155.1 MB in the beginning and 147.6 MB in the end (delta: 7.5 MB). Peak memory consumption was 42.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 7 SDslu, 95 SDs, 0 SdLazy, 88 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred 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: 0.0s HoareAnnotationTime, 57 LocationsWithAnnotation, 64 PreInvPairs, 90 NumberOfFragments, 109 HoareAnnotationTreeSize, 64 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 57 FomulaSimplificationsInter, 166 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 3906 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 correct! Received shutdown request...