/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/while_infinite_loop_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 00:17:18,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 00:17:18,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 00:17:18,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 00:17:18,217 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 00:17:18,238 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 00:17:18,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 00:17:18,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 00:17:18,243 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 00:17:18,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 00:17:18,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 00:17:18,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 00:17:18,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 00:17:18,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 00:17:18,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 00:17:18,246 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 00:17:18,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 00:17:18,246 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 00:17:18,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 00:17:18,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 00:17:18,247 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 00:17:18,247 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 00:17:18,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 00:17:18,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 00:17:18,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 00:17:18,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 00:17:18,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 00:17:18,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-24 00:17:18,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 00:17:18,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 00:17:18,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 00:17:18,751 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 00:17:18,752 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 00:17:18,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c [2021-02-24 00:17:18,827 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e583ac189/1ad6b9e595524479ac7e6b8ab1af2ca1/FLAGd8d1b0b96 [2021-02-24 00:17:19,477 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 00:17:19,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c [2021-02-24 00:17:19,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e583ac189/1ad6b9e595524479ac7e6b8ab1af2ca1/FLAGd8d1b0b96 [2021-02-24 00:17:19,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e583ac189/1ad6b9e595524479ac7e6b8ab1af2ca1 [2021-02-24 00:17:19,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 00:17:19,860 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 00:17:19,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 00:17:19,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 00:17:19,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 00:17:19,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:17:19" (1/1) ... [2021-02-24 00:17:19,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48199d69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:19, skipping insertion in model container [2021-02-24 00:17:19,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 12:17:19" (1/1) ... [2021-02-24 00:17:19,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 00:17:19,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 00:17:20,045 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/while_infinite_loop_3.c[333,346] [2021-02-24 00:17:20,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:17:20,089 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 00:17:20,106 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/while_infinite_loop_3.c[333,346] [2021-02-24 00:17:20,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 00:17:20,129 INFO L208 MainTranslator]: Completed translation [2021-02-24 00:17:20,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:20 WrapperNode [2021-02-24 00:17:20,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 00:17:20,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 00:17:20,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 00:17:20,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 00:17:20,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:20" (1/1) ... [2021-02-24 00:17:20,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:20" (1/1) ... [2021-02-24 00:17:20,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:20" (1/1) ... [2021-02-24 00:17:20,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:20" (1/1) ... [2021-02-24 00:17:20,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:20" (1/1) ... [2021-02-24 00:17:20,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:20" (1/1) ... [2021-02-24 00:17:20,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:20" (1/1) ... [2021-02-24 00:17:20,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 00:17:20,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 00:17:20,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 00:17:20,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 00:17:20,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:20" (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 00:17:20,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 00:17:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 00:17:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 00:17:20,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 00:17:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2021-02-24 00:17:20,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 00:17:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 00:17:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 00:17:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 00:17:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 00:17:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 00:17:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2021-02-24 00:17:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 00:17:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 00:17:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 00:17:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 00:17:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 00:17:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 00:17:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 00:17:20,813 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 00:17:20,814 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-24 00:17:20,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:17:20 BoogieIcfgContainer [2021-02-24 00:17:20,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 00:17:20,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 00:17:20,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 00:17:20,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 00:17:20,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 12:17:19" (1/3) ... [2021-02-24 00:17:20,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373a12cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:17:20, skipping insertion in model container [2021-02-24 00:17:20,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 12:17:20" (2/3) ... [2021-02-24 00:17:20,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373a12cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 12:17:20, skipping insertion in model container [2021-02-24 00:17:20,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 12:17:20" (3/3) ... [2021-02-24 00:17:20,849 INFO L111 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_3.c [2021-02-24 00:17:20,867 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 00:17:20,879 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 00:17:20,902 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 00:17:20,928 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 00:17:20,929 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 00:17:20,929 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-24 00:17:20,929 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 00:17:20,929 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 00:17:20,930 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 00:17:20,930 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 00:17:20,930 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 00:17:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2021-02-24 00:17:20,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-02-24 00:17:20,959 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:20,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 00:17:20,960 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:20,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:20,967 INFO L82 PathProgramCache]: Analyzing trace with hash -704668426, now seen corresponding path program 1 times [2021-02-24 00:17:20,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:20,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991530864] [2021-02-24 00:17:20,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:21,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:21,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:21,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:21,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:21,298 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-02-24 00:17:21,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:21,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:21,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:21,373 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 00:17:21,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991530864] [2021-02-24 00:17:21,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:17:21,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 00:17:21,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240416641] [2021-02-24 00:17:21,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 00:17:21,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:21,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 00:17:21,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:17:21,402 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2021-02-24 00:17:21,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:17:21,512 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2021-02-24 00:17:21,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 00:17:21,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2021-02-24 00:17:21,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:17:21,524 INFO L225 Difference]: With dead ends: 48 [2021-02-24 00:17:21,525 INFO L226 Difference]: Without dead ends: 28 [2021-02-24 00:17:21,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 00:17:21,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-02-24 00:17:21,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2021-02-24 00:17:21,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-02-24 00:17:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-02-24 00:17:21,585 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 18 [2021-02-24 00:17:21,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:17:21,585 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-02-24 00:17:21,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 00:17:21,586 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-02-24 00:17:21,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-02-24 00:17:21,587 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 00:17:21,587 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] [2021-02-24 00:17:21,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 00:17:21,588 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 00:17:21,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 00:17:21,589 INFO L82 PathProgramCache]: Analyzing trace with hash -2017543656, now seen corresponding path program 1 times [2021-02-24 00:17:21,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 00:17:21,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950435298] [2021-02-24 00:17:21,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 00:17:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:21,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:21,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:21,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:21,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:21,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:21,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:21,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:21,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 00:17:21,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:21,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:21,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 00:17:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:21,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:21,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:21,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 00:17:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 00:17:21,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:21,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 00:17:21,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 00:17:21,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 00:17:21,777 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 00:17:21,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950435298] [2021-02-24 00:17:21,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 00:17:21,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 00:17:21,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535382553] [2021-02-24 00:17:21,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 00:17:21,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 00:17:21,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 00:17:21,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-24 00:17:21,785 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 7 states. [2021-02-24 00:17:22,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 00:17:22,054 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-02-24 00:17:22,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 00:17:22,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2021-02-24 00:17:22,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 00:17:22,056 INFO L225 Difference]: With dead ends: 26 [2021-02-24 00:17:22,056 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 00:17:22,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-02-24 00:17:22,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 00:17:22,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 00:17:22,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 00:17:22,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 00:17:22,059 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-02-24 00:17:22,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 00:17:22,060 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 00:17:22,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 00:17:22,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 00:17:22,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 00:17:22,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 00:17:22,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 00:17:22,554 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-24 00:17:22,554 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-24 00:17:22,555 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-24 00:17:22,555 INFO L185 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2021-02-24 00:17:22,556 INFO L185 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2021-02-24 00:17:22,556 INFO L185 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2021-02-24 00:17:22,556 INFO L185 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2021-02-24 00:17:22,556 INFO L185 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2021-02-24 00:17:22,556 INFO L185 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2021-02-24 00:17:22,557 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (= ~x~0 0) [2021-02-24 00:17:22,557 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)|) (= ~x~0 |old(~x~0)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-24 00:17:22,557 INFO L185 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2021-02-24 00:17:22,557 INFO L185 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2021-02-24 00:17:22,558 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (= ~x~0 0) [2021-02-24 00:17:22,558 INFO L185 CegarLoopUtils]: At program point evalENTRY(lines 14 21) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2021-02-24 00:17:22,560 INFO L185 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2021-02-24 00:17:22,560 INFO L185 CegarLoopUtils]: At program point L16-1(lines 14 21) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2021-02-24 00:17:22,560 INFO L185 CegarLoopUtils]: At program point evalEXIT(lines 14 21) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2021-02-24 00:17:22,560 INFO L185 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: false [2021-02-24 00:17:22,561 INFO L185 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: (= ~x~0 0) [2021-02-24 00:17:22,562 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 00:17:22,562 INFO L185 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: false [2021-02-24 00:17:22,562 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (not (= |old(~x~0)| 0)) [2021-02-24 00:17:22,562 INFO L185 CegarLoopUtils]: At program point L29(lines 24 35) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2021-02-24 00:17:22,563 INFO L185 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2021-02-24 00:17:22,563 INFO L185 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: (or (= ~x~0 |old(~x~0)|) (not (= |old(~x~0)| 0))) [2021-02-24 00:17:22,563 INFO L185 CegarLoopUtils]: At program point L26-1(lines 26 30) the Hoare annotation is: (not (= |old(~x~0)| 0)) [2021-02-24 00:17:22,563 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 24 35) the Hoare annotation is: (not (= |old(~x~0)| 0)) [2021-02-24 00:17:22,563 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 24 35) the Hoare annotation is: (not (= |old(~x~0)| 0)) [2021-02-24 00:17:22,565 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2021-02-24 00:17:22,565 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: (or (not (= ~x~0 0)) (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:17:22,565 INFO L185 CegarLoopUtils]: At program point L7(line 7) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= ~x~0 0))) [2021-02-24 00:17:22,565 INFO L185 CegarLoopUtils]: At program point L6(lines 6 8) the Hoare annotation is: (or (not (= ~x~0 0)) (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:17:22,566 INFO L185 CegarLoopUtils]: At program point L7-1(line 7) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= ~x~0 0))) [2021-02-24 00:17:22,566 INFO L185 CegarLoopUtils]: At program point L6-2(lines 5 10) the Hoare annotation is: (or (not (= ~x~0 0)) (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-24 00:17:22,566 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= ~x~0 0))) [2021-02-24 00:17:22,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 12:17:22 BoogieIcfgContainer [2021-02-24 00:17:22,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 00:17:22,588 INFO L168 Benchmark]: Toolchain (without parser) took 2738.64 ms. Allocated memory was 152.0 MB in the beginning and 183.5 MB in the end (delta: 31.5 MB). Free memory was 129.5 MB in the beginning and 135.2 MB in the end (delta: -5.7 MB). Peak memory consumption was 59.3 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:22,588 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 00:17:22,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.65 ms. Allocated memory is still 152.0 MB. Free memory was 128.3 MB in the beginning and 118.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:22,590 INFO L168 Benchmark]: Boogie Preprocessor took 61.37 ms. Allocated memory is still 152.0 MB. Free memory was 118.5 MB in the beginning and 117.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:22,591 INFO L168 Benchmark]: RCFGBuilder took 623.66 ms. Allocated memory is still 152.0 MB. Free memory was 117.1 MB in the beginning and 135.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:22,592 INFO L168 Benchmark]: TraceAbstraction took 1761.39 ms. Allocated memory was 152.0 MB in the beginning and 183.5 MB in the end (delta: 31.5 MB). Free memory was 135.2 MB in the beginning and 135.2 MB in the end (delta: 24.6 kB). Peak memory consumption was 64.0 MB. Max. memory is 8.0 GB. [2021-02-24 00:17:22,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 268.65 ms. Allocated memory is still 152.0 MB. Free memory was 128.3 MB in the beginning and 118.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.37 ms. Allocated memory is still 152.0 MB. Free memory was 118.5 MB in the beginning and 117.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 623.66 ms. Allocated memory is still 152.0 MB. Free memory was 117.1 MB in the beginning and 135.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1761.39 ms. Allocated memory was 152.0 MB in the beginning and 183.5 MB in the end (delta: 31.5 MB). Free memory was 135.2 MB in the beginning and 135.2 MB in the end (delta: 24.6 kB). Peak memory consumption was 64.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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 - ProcedureContractResult [Line: 14]: Procedure Contract for eval Derived contract for procedure eval: x == \old(x) || !(\old(x) == 0) - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: !(\old(x) == 0) - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: (!(x == 0) || \old(cond) == 0) || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 34 SDslu, 45 SDs, 0 SdLazy, 40 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 51 PreInvPairs, 58 NumberOfFragments, 203 HoareAnnotationTreeSize, 51 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 33 FomulaSimplificationsInter, 409 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 2368 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...