/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 -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-b7b32d2 [2021-02-21 21:18:18,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:18:18,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:18:19,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 21:18:19,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:18:19,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:18:19,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:18:19,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:18:19,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:18:19,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:18:19,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:18:19,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:18:19,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:18:19,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:18:19,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:18:19,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:18:19,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 21:18:19,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 21:18:19,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 21:18:19,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 21:18:19,087 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 21:18:19,102 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:18:19,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:18:19,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:18:19,105 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:18:19,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:18:19,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:18:19,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:18:19,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:18:19,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:18:19,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:18:19,107 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:18:19,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:18:19,107 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:18:19,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:18:19,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:18:19,108 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:18:19,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:18:19,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:18:19,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:18:19,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:18:19,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:18:19,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:18:19,109 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:18:19,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:18:19,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:18:19,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:18:19,606 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:18:19,607 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:18:19,608 INFO L432 ainManager$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 [2021-02-21 21:18:19,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45370f7d1/57df234ca65746c383c3a7944ee2c6d0/FLAG40c24f087 [2021-02-21 21:18:20,542 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:18:20,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2021-02-21 21:18:20,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45370f7d1/57df234ca65746c383c3a7944ee2c6d0/FLAG40c24f087 [2021-02-21 21:18:20,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45370f7d1/57df234ca65746c383c3a7944ee2c6d0 [2021-02-21 21:18:20,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:18:20,870 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:18:20,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:18:20,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:18:20,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:18:20,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:18:20" (1/1) ... [2021-02-21 21:18:20,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ade3b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:20, skipping insertion in model container [2021-02-21 21:18:20,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:18:20" (1/1) ... [2021-02-21 21:18:20,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:18:20,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:18:21,080 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] [2021-02-21 21:18:21,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:18:21,124 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:18:21,149 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] [2021-02-21 21:18:21,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:18:21,213 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:18:21,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:21 WrapperNode [2021-02-21 21:18:21,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:18:21,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:18:21,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:18:21,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:18:21,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:21" (1/1) ... [2021-02-21 21:18:21,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:21" (1/1) ... [2021-02-21 21:18:21,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:21" (1/1) ... [2021-02-21 21:18:21,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:21" (1/1) ... [2021-02-21 21:18:21,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:21" (1/1) ... [2021-02-21 21:18:21,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:21" (1/1) ... [2021-02-21 21:18:21,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:21" (1/1) ... [2021-02-21 21:18:21,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:18:21,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:18:21,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:18:21,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:18:21,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:21" (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 [2021-02-21 21:18:21,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:18:21,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:18:21,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:18:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 21:18:21,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:18:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:18:21,485 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:18:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:18:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:18:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-02-21 21:18:21,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 21:18:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:18:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:18:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:18:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:18:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:18:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:18:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:18:22,172 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:18:22,173 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-21 21:18:22,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:18:22 BoogieIcfgContainer [2021-02-21 21:18:22,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:18:22,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:18:22,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:18:22,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:18:22,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:18:20" (1/3) ... [2021-02-21 21:18:22,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbd5740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:18:22, skipping insertion in model container [2021-02-21 21:18:22,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:21" (2/3) ... [2021-02-21 21:18:22,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbd5740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:18:22, skipping insertion in model container [2021-02-21 21:18:22,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:18:22" (3/3) ... [2021-02-21 21:18:22,189 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail_tTflag_arr_one_loop.c [2021-02-21 21:18:22,199 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:18:22,207 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:18:22,232 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:18:22,263 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:18:22,264 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:18:22,264 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:18:22,264 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:18:22,264 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:18:22,264 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:18:22,265 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:18:22,265 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:18:22,287 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2021-02-21 21:18:22,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-21 21:18:22,300 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:18:22,301 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] [2021-02-21 21:18:22,302 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:18:22,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:18:22,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1609627532, now seen corresponding path program 1 times [2021-02-21 21:18:22,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:18:22,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335645477] [2021-02-21 21:18:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:18:22,418 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:18:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:22,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:22,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:22,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:18:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:22,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:22,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:22,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:18:22,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335645477] [2021-02-21 21:18:22,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:18:22,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 21:18:22,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939827442] [2021-02-21 21:18:22,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 21:18:22,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:18:22,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 21:18:22,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 21:18:22,785 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 3 states. [2021-02-21 21:18:23,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:18:23,044 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2021-02-21 21:18:23,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 21:18:23,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-02-21 21:18:23,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:18:23,057 INFO L225 Difference]: With dead ends: 87 [2021-02-21 21:18:23,057 INFO L226 Difference]: Without dead ends: 47 [2021-02-21 21:18:23,064 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 [2021-02-21 21:18:23,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-02-21 21:18:23,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-02-21 21:18:23,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-02-21 21:18:23,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2021-02-21 21:18:23,126 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 32 [2021-02-21 21:18:23,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:18:23,127 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2021-02-21 21:18:23,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 21:18:23,128 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2021-02-21 21:18:23,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-21 21:18:23,129 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:18:23,129 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] [2021-02-21 21:18:23,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:18:23,130 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:18:23,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:18:23,132 INFO L82 PathProgramCache]: Analyzing trace with hash 531011061, now seen corresponding path program 1 times [2021-02-21 21:18:23,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:18:23,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466685892] [2021-02-21 21:18:23,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:18:23,136 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:18:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:23,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:18:23,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:18:23,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:18:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:18:23,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:18:23,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:18:23,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:18:23,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466685892] [2021-02-21 21:18:23,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:18:23,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-21 21:18:23,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658136344] [2021-02-21 21:18:23,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-21 21:18:23,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:18:23,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-21 21:18:23,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-21 21:18:23,320 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 5 states. [2021-02-21 21:18:23,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:18:23,649 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2021-02-21 21:18:23,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 21:18:23,650 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2021-02-21 21:18:23,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:18:23,651 INFO L225 Difference]: With dead ends: 47 [2021-02-21 21:18:23,652 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 21:18:23,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-02-21 21:18:23,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 21:18:23,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 21:18:23,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 21:18:23,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 21:18:23,655 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-02-21 21:18:23,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:18:23,655 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 21:18:23,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-21 21:18:23,656 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 21:18:23,656 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 21:18:23,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:18:23,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 21:18:24,147 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-21 21:18:24,148 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-21 21:18:24,148 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-21 21:18:24,148 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-21 21:18:24,149 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-21 21:18:24,149 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,149 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-21 21:18:24,149 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,149 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-21 21:18:24,150 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|)) [2021-02-21 21:18:24,150 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-21 21:18:24,150 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-21 21:18:24,150 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,150 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,151 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,151 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,151 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-21 21:18:24,151 INFO L192 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: true [2021-02-21 21:18:24,151 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-21 21:18:24,151 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 12 39) the Hoare annotation is: true [2021-02-21 21:18:24,152 INFO L192 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: true [2021-02-21 21:18:24,152 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-21 21:18:24,152 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-21 21:18:24,152 INFO L192 CegarLoopUtils]: At program point L28-2(line 28) the Hoare annotation is: true [2021-02-21 21:18:24,152 INFO L192 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: true [2021-02-21 21:18:24,152 INFO L192 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: true [2021-02-21 21:18:24,153 INFO L192 CegarLoopUtils]: At program point L20-3(lines 20 22) the Hoare annotation is: true [2021-02-21 21:18:24,153 INFO L192 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: true [2021-02-21 21:18:24,153 INFO L192 CegarLoopUtils]: At program point L20-4(line 20) the Hoare annotation is: true [2021-02-21 21:18:24,153 INFO L192 CegarLoopUtils]: At program point L20-5(line 20) the Hoare annotation is: true [2021-02-21 21:18:24,153 INFO L192 CegarLoopUtils]: At program point L20-6(lines 20 22) the Hoare annotation is: true [2021-02-21 21:18:24,154 INFO L192 CegarLoopUtils]: At program point L20-7(lines 20 22) the Hoare annotation is: true [2021-02-21 21:18:24,154 INFO L192 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: true [2021-02-21 21:18:24,154 INFO L192 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-02-21 21:18:24,154 INFO L192 CegarLoopUtils]: At program point L33-1(line 33) the Hoare annotation is: true [2021-02-21 21:18:24,154 INFO L192 CegarLoopUtils]: At program point L33-2(line 33) the Hoare annotation is: true [2021-02-21 21:18:24,155 INFO L192 CegarLoopUtils]: At program point L29-2(lines 29 35) the Hoare annotation is: true [2021-02-21 21:18:24,155 INFO L192 CegarLoopUtils]: At program point L29-3(lines 29 35) the Hoare annotation is: true [2021-02-21 21:18:24,155 INFO L192 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: true [2021-02-21 21:18:24,155 INFO L192 CegarLoopUtils]: At program point L21-1(line 21) the Hoare annotation is: true [2021-02-21 21:18:24,155 INFO L192 CegarLoopUtils]: At program point L21-2(line 21) the Hoare annotation is: true [2021-02-21 21:18:24,156 INFO L192 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: true [2021-02-21 21:18:24,156 INFO L192 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: true [2021-02-21 21:18:24,156 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 12 39) the Hoare annotation is: true [2021-02-21 21:18:24,156 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-21 21:18:24,156 INFO L192 CegarLoopUtils]: At program point L34-1(line 34) the Hoare annotation is: true [2021-02-21 21:18:24,156 INFO L192 CegarLoopUtils]: At program point L34-2(line 34) the Hoare annotation is: true [2021-02-21 21:18:24,157 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 12 39) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-21 21:18:24,157 INFO L192 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: true [2021-02-21 21:18:24,157 INFO L192 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: true [2021-02-21 21:18:24,157 INFO L192 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: true [2021-02-21 21:18:24,158 INFO L192 CegarLoopUtils]: At program point L14-1(line 14) the Hoare annotation is: true [2021-02-21 21:18:24,158 INFO L192 CegarLoopUtils]: At program point L14-2(line 14) the Hoare annotation is: true [2021-02-21 21:18:24,158 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2021-02-21 21:18:24,158 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: true [2021-02-21 21:18:24,158 INFO L185 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2021-02-21 21:18:24,159 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)) [2021-02-21 21:18:24,159 INFO L185 CegarLoopUtils]: At program point L8-1(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2021-02-21 21:18:24,159 INFO L192 CegarLoopUtils]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2021-02-21 21:18:24,159 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2021-02-21 21:18:24,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:18:24 BoogieIcfgContainer [2021-02-21 21:18:24,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:18:24,180 INFO L168 Benchmark]: Toolchain (without parser) took 3320.92 ms. Allocated memory is still 151.0 MB. Free memory was 127.8 MB in the beginning and 94.6 MB in the end (delta: 33.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:24,181 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:18:24,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.51 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 117.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:24,184 INFO L168 Benchmark]: Boogie Preprocessor took 88.66 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:24,185 INFO L168 Benchmark]: RCFGBuilder took 870.55 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 132.2 MB in the end (delta: -16.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:24,186 INFO L168 Benchmark]: TraceAbstraction took 2000.46 ms. Allocated memory is still 151.0 MB. Free memory was 131.7 MB in the beginning and 94.6 MB in the end (delta: 37.0 MB). Peak memory consumption was 38.6 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:24,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 151.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 342.51 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 117.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 88.66 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 870.55 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 132.2 MB in the end (delta: -16.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2000.46 ms. Allocated memory is still 151.0 MB. Free memory was 131.7 MB in the beginning and 94.6 MB in the end (delta: 37.0 MB). Peak memory consumption was 38.6 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: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, 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, 0.3s 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, 0.1s HoareSimplificationTime, 57 FomulaSimplificationsInter, 166 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...