/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/ldv-regression/mutex_lock_int.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:33:50,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:33:50,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:33:50,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 20:33:50,691 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:33:50,712 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:33:50,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:33:50,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:33:50,717 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:33:50,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:33:50,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:33:50,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:33:50,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:33:50,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:33:50,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:33:50,719 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:33:50,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:33:50,719 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:33:50,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:33:50,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:33:50,720 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:33:50,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:33:50,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:33:50,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:33:50,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:33:50,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:33:50,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:33:50,721 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:33:51,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:33:51,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:33:51,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:33:51,108 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:33:51,108 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:33:51,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2020-10-23 20:33:51,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d629b772f/ecbfeab2a0764fccbf86a9d8daa1098e/FLAG965163eea [2020-10-23 20:33:51,712 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:33:51,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2020-10-23 20:33:51,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d629b772f/ecbfeab2a0764fccbf86a9d8daa1098e/FLAG965163eea [2020-10-23 20:33:52,084 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d629b772f/ecbfeab2a0764fccbf86a9d8daa1098e [2020-10-23 20:33:52,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:33:52,092 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:33:52,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:33:52,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:33:52,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:33:52,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:33:52" (1/1) ... [2020-10-23 20:33:52,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50040672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:52, skipping insertion in model container [2020-10-23 20:33:52,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:33:52" (1/1) ... [2020-10-23 20:33:52,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:33:52,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:33:52,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:33:52,325 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:33:52,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:33:52,365 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:33:52,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:52 WrapperNode [2020-10-23 20:33:52,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:33:52,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:33:52,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:33:52,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:33:52,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:52" (1/1) ... [2020-10-23 20:33:52,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:52" (1/1) ... [2020-10-23 20:33:52,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:52" (1/1) ... [2020-10-23 20:33:52,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:52" (1/1) ... [2020-10-23 20:33:52,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:52" (1/1) ... [2020-10-23 20:33:52,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:52" (1/1) ... [2020-10-23 20:33:52,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:52" (1/1) ... [2020-10-23 20:33:52,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:33:52,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:33:52,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:33:52,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:33:52,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:33:52,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:33:52,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:33:52,506 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:33:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-10-23 20:33:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-23 20:33:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-23 20:33:52,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:33:52,507 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:33:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:33:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:33:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:33:52,508 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-10-23 20:33:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-23 20:33:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:33:52,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:33:52,510 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-23 20:33:52,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:33:52,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:33:52,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:33:52,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:33:52,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:33:53,014 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:33:53,017 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:33:53,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:33:53 BoogieIcfgContainer [2020-10-23 20:33:53,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:33:53,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:33:53,062 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:33:53,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:33:53,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:33:52" (1/3) ... [2020-10-23 20:33:53,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de5f756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:33:53, skipping insertion in model container [2020-10-23 20:33:53,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:33:52" (2/3) ... [2020-10-23 20:33:53,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de5f756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:33:53, skipping insertion in model container [2020-10-23 20:33:53,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:33:53" (3/3) ... [2020-10-23 20:33:53,080 INFO L111 eAbstractionObserver]: Analyzing ICFG mutex_lock_int.c_1.i [2020-10-23 20:33:53,112 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:33:53,118 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:33:53,136 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:33:53,172 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:33:53,172 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:33:53,173 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:33:53,173 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:33:53,173 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:33:53,173 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:33:53,173 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:33:53,174 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:33:53,195 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2020-10-23 20:33:53,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-23 20:33:53,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:33:53,210 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] [2020-10-23 20:33:53,210 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:33:53,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:33:53,225 INFO L82 PathProgramCache]: Analyzing trace with hash -512414827, now seen corresponding path program 1 times [2020-10-23 20:33:53,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:33:53,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898408013] [2020-10-23 20:33:53,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:33:53,326 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:33:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:33:53,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:33:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:33:53,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:33:53,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898408013] [2020-10-23 20:33:53,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:33:53,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:33:53,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992229348] [2020-10-23 20:33:53,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:33:53,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:33:53,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:33:53,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:33:53,680 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 7 states. [2020-10-23 20:33:53,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:33:53,974 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2020-10-23 20:33:53,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 20:33:53,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-10-23 20:33:53,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:33:53,986 INFO L225 Difference]: With dead ends: 70 [2020-10-23 20:33:53,987 INFO L226 Difference]: Without dead ends: 31 [2020-10-23 20:33:53,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:33:54,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-23 20:33:54,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-23 20:33:54,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-23 20:33:54,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2020-10-23 20:33:54,038 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 22 [2020-10-23 20:33:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:33:54,039 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2020-10-23 20:33:54,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:33:54,039 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2020-10-23 20:33:54,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-23 20:33:54,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:33:54,041 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] [2020-10-23 20:33:54,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:33:54,041 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:33:54,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:33:54,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1063002447, now seen corresponding path program 1 times [2020-10-23 20:33:54,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:33:54,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244274009] [2020-10-23 20:33:54,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:33:54,052 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:33:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:33:54,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:33:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:33:54,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-23 20:33:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:33:54,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:33:54,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244274009] [2020-10-23 20:33:54,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:33:54,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:33:54,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055378902] [2020-10-23 20:33:54,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:33:54,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:33:54,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:33:54,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:33:54,235 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 10 states. [2020-10-23 20:33:54,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:33:54,597 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2020-10-23 20:33:54,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 20:33:54,597 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2020-10-23 20:33:54,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:33:54,598 INFO L225 Difference]: With dead ends: 31 [2020-10-23 20:33:54,598 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 20:33:54,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2020-10-23 20:33:54,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 20:33:54,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 20:33:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 20:33:54,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 20:33:54,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2020-10-23 20:33:54,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:33:54,602 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 20:33:54,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:33:54,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 20:33:54,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 20:33:54,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:33:54,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 20:33:55,312 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-10-23 20:33:55,312 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-23 20:33:55,313 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-10-23 20:33:55,313 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-10-23 20:33:55,313 INFO L270 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) (and (= |#memory_int| |old(#memory_int)|) (= (select (select |#memory_int| mutex_unlock_~b.base) mutex_unlock_~b.offset) 1))) [2020-10-23 20:33:55,314 INFO L270 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: (or (and (= |#memory_int| |old(#memory_int)|) (= |mutex_unlock_#t~mem8| 1) (= (select (select |#memory_int| mutex_unlock_~b.base) mutex_unlock_~b.offset) 1)) (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1))) [2020-10-23 20:33:55,314 INFO L270 CegarLoopResult]: At program point L26-2(line 26) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2020-10-23 20:33:55,314 INFO L270 CegarLoopResult]: At program point L26-3(line 26) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2020-10-23 20:33:55,314 INFO L277 CegarLoopResult]: At program point L26-5(line 26) the Hoare annotation is: true [2020-10-23 20:33:55,314 INFO L277 CegarLoopResult]: At program point L26-6(line 26) the Hoare annotation is: true [2020-10-23 20:33:55,315 INFO L270 CegarLoopResult]: At program point mutex_unlockENTRY(lines 24 28) the Hoare annotation is: (or (= |#memory_int| |old(#memory_int)|) (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1))) [2020-10-23 20:33:55,315 INFO L277 CegarLoopResult]: At program point mutex_unlockEXIT(lines 24 28) the Hoare annotation is: true [2020-10-23 20:33:55,315 INFO L277 CegarLoopResult]: At program point mutex_unlockFINAL(lines 24 28) the Hoare annotation is: true [2020-10-23 20:33:55,315 INFO L277 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-10-23 20:33:55,315 INFO L277 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-10-23 20:33:55,316 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 20:33:55,316 INFO L277 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-10-23 20:33:55,316 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-23 20:33:55,316 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-10-23 20:33:55,316 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |old(#t~string4.offset)| |#t~string4.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:33:55,317 INFO L277 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-10-23 20:33:55,317 INFO L277 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-10-23 20:33:55,317 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-23 20:33:55,317 INFO L277 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-10-23 20:33:55,317 INFO L277 CegarLoopResult]: At program point errEXIT(lines 15 16) the Hoare annotation is: true [2020-10-23 20:33:55,318 INFO L277 CegarLoopResult]: At program point errENTRY(lines 15 16) the Hoare annotation is: true [2020-10-23 20:33:55,318 INFO L277 CegarLoopResult]: At program point errFINAL(lines 15 16) the Hoare annotation is: true [2020-10-23 20:33:55,318 INFO L270 CegarLoopResult]: At program point mutex_lockENTRY(lines 18 22) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (= |#memory_int| |old(#memory_int)|)) [2020-10-23 20:33:55,318 INFO L270 CegarLoopResult]: At program point mutex_lockEXIT(lines 18 22) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1))) [2020-10-23 20:33:55,319 INFO L270 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2020-10-23 20:33:55,319 INFO L270 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#t~mem7| 0) (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2020-10-23 20:33:55,319 INFO L270 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2020-10-23 20:33:55,319 INFO L270 CegarLoopResult]: At program point L20-3(line 20) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2020-10-23 20:33:55,319 INFO L270 CegarLoopResult]: At program point L20-5(line 20) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#t~mem7| 0) (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2020-10-23 20:33:55,320 INFO L270 CegarLoopResult]: At program point L20-6(line 20) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2020-10-23 20:33:55,320 INFO L270 CegarLoopResult]: At program point mutex_lockFINAL(lines 18 22) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1))) [2020-10-23 20:33:55,320 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-23 20:33:55,320 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 20:33:55,320 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 20:33:55,321 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-23 20:33:55,321 INFO L270 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 0) [2020-10-23 20:33:55,321 INFO L270 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-10-23 20:33:55,321 INFO L277 CegarLoopResult]: At program point L32-1(line 32) the Hoare annotation is: true [2020-10-23 20:33:55,321 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 30 42) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:33:55,322 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 30 42) the Hoare annotation is: true [2020-10-23 20:33:55,322 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 30 42) the Hoare annotation is: true [2020-10-23 20:33:55,322 INFO L277 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: true [2020-10-23 20:33:55,322 INFO L270 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 1) [2020-10-23 20:33:55,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:33:55,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:33:55,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:33:55 BoogieIcfgContainer [2020-10-23 20:33:55,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:33:55,344 INFO L168 Benchmark]: Toolchain (without parser) took 3254.20 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 102.7 MB in the beginning and 103.8 MB in the end (delta: -1.1 MB). Peak memory consumption was 80.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:33:55,345 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 89.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:33:55,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.13 ms. Allocated memory is still 125.8 MB. Free memory was 102.0 MB in the beginning and 92.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:33:55,347 INFO L168 Benchmark]: Boogie Preprocessor took 53.90 ms. Allocated memory is still 125.8 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:33:55,348 INFO L168 Benchmark]: RCFGBuilder took 597.48 ms. Allocated memory is still 125.8 MB. Free memory was 91.5 MB in the beginning and 76.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-23 20:33:55,348 INFO L168 Benchmark]: TraceAbstraction took 2279.57 ms. Allocated memory is still 151.0 MB. Free memory was 135.7 MB in the beginning and 103.8 MB in the end (delta: 31.9 MB). Peak memory consumption was 86.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:33:55,352 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 125.8 MB. Free memory is still 89.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 272.13 ms. Allocated memory is still 125.8 MB. Free memory was 102.0 MB in the beginning and 92.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.90 ms. Allocated memory is still 125.8 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 597.48 ms. Allocated memory is still 125.8 MB. Free memory was 91.5 MB in the beginning and 76.4 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2279.57 ms. Allocated memory is still 151.0 MB. Free memory was 135.7 MB in the beginning and 103.8 MB in the end (delta: 31.9 MB). Peak memory consumption was 86.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 24]: Procedure Contract for mutex_unlock Derived contract for procedure mutex_unlock: 1 - ProcedureContractResult [Line: 15]: Procedure Contract for err Derived contract for procedure err: 1 - ProcedureContractResult [Line: 18]: Procedure Contract for mutex_lock [2020-10-23 20:33:55,360 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:33:55,360 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:33:55,361 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-23 20:33:55,361 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure mutex_lock: !(\old(unknown-#memory_int-unknown)[a][a] == 0) || ((a == a && a == a) && unknown-#memory_int-unknown[a][a] == 1) - ProcedureContractResult [Line: 30]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 48 SDslu, 107 SDs, 0 SdLazy, 227 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred 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, 48 LocationsWithAnnotation, 69 PreInvPairs, 82 NumberOfFragments, 314 HoareAnnotationTreeSize, 69 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 48 FomulaSimplificationsInter, 587 FormulaSimplificationTreeSizeReductionInter, 0.4s 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...