/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:20:11,360 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 11:20:11,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:20:11,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:20:11,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:20:11,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:20:11,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:20:11,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:20:11,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:20:11,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:20:11,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:20:11,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:20:11,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:20:11,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:20:11,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:20:11,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:20:11,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:20:11,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:20:11,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:20:11,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:20:11,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:20:11,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:20:11,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:20:11,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:20:11,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:20:11,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:20:11,434 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:20:11,468 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:20:11,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:20:11,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:20:11,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:20:11,471 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:20:11,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:20:11,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:20:11,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:20:11,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:20:11,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:20:11,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:20:11,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:20:11,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:20:11,475 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:20:11,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:20:11,476 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:20:11,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:20:11,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:20:11,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:20:11,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:20:11,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:20:11,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:20:11,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:20:11,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:20:11,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:20:11,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:20:11,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:20:11,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:20:11,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:20:11,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:20:11,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:20:11,852 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:20:11,858 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:20:11,860 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:20:11,860 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:20:11,861 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-07-21 11:20:11,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b11498b69/1392c64e89e54df99fac0d064a90b7cd/FLAG596456fc8 [2020-07-21 11:20:12,476 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:20:12,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-07-21 11:20:12,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b11498b69/1392c64e89e54df99fac0d064a90b7cd/FLAG596456fc8 [2020-07-21 11:20:12,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b11498b69/1392c64e89e54df99fac0d064a90b7cd [2020-07-21 11:20:12,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:20:12,856 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:20:12,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:20:12,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:20:12,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:20:12,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:20:12" (1/1) ... [2020-07-21 11:20:12,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1649d608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:12, skipping insertion in model container [2020-07-21 11:20:12,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:20:12" (1/1) ... [2020-07-21 11:20:12,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:20:12,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:20:13,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:20:13,115 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:20:13,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:20:13,149 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:20:13,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:13 WrapperNode [2020-07-21 11:20:13,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:20:13,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:20:13,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:20:13,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:20:13,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:13" (1/1) ... [2020-07-21 11:20:13,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:13" (1/1) ... [2020-07-21 11:20:13,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:13" (1/1) ... [2020-07-21 11:20:13,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:13" (1/1) ... [2020-07-21 11:20:13,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:13" (1/1) ... [2020-07-21 11:20:13,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:13" (1/1) ... [2020-07-21 11:20:13,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:13" (1/1) ... [2020-07-21 11:20:13,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:20:13,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:20:13,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:20:13,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:20:13,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:13" (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 [2020-07-21 11:20:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:20:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:20:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-07-21 11:20:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-07-21 11:20:13,360 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-07-21 11:20:13,361 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:20:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:20:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-07-21 11:20:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-07-21 11:20:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 11:20:13,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 11:20:13,362 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-07-21 11:20:13,362 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:20:13,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 11:20:13,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 11:20:13,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:20:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:20:13,631 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:20:13,632 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 11:20:13,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:20:13 BoogieIcfgContainer [2020-07-21 11:20:13,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:20:13,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:20:13,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:20:13,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:20:13,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:20:12" (1/3) ... [2020-07-21 11:20:13,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee00c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:20:13, skipping insertion in model container [2020-07-21 11:20:13,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:13" (2/3) ... [2020-07-21 11:20:13,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee00c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:20:13, skipping insertion in model container [2020-07-21 11:20:13,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:20:13" (3/3) ... [2020-07-21 11:20:13,657 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct.c_1.i [2020-07-21 11:20:13,690 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:20:13,701 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:20:13,715 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:20:13,738 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:20:13,738 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:20:13,739 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:20:13,739 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:20:13,739 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:20:13,739 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:20:13,739 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:20:13,739 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:20:13,760 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-21 11:20:13,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-21 11:20:13,767 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:20:13,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:20:13,768 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:20:13,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:20:13,775 INFO L82 PathProgramCache]: Analyzing trace with hash 589228543, now seen corresponding path program 1 times [2020-07-21 11:20:13,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:20:13,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792918155] [2020-07-21 11:20:13,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:20:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:20:13,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 11:20:13,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:20:13,988 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-07-21 11:20:13,989 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:20:13,999 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:20:14,000 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:20:14,000 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-07-21 11:20:14,053 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 11:20:14,054 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:20:14,060 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:20:14,061 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:20:14,061 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-07-21 11:20:14,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:20:14,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:20:14,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792918155] [2020-07-21 11:20:14,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:20:14,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:20:14,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520548900] [2020-07-21 11:20:14,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:20:14,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:20:14,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:20:14,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:20:14,106 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 5 states. [2020-07-21 11:20:14,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:20:14,222 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-07-21 11:20:14,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:20:14,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-21 11:20:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:20:14,236 INFO L225 Difference]: With dead ends: 46 [2020-07-21 11:20:14,236 INFO L226 Difference]: Without dead ends: 18 [2020-07-21 11:20:14,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:20:14,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-21 11:20:14,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-21 11:20:14,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-21 11:20:14,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-07-21 11:20:14,287 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2020-07-21 11:20:14,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:20:14,288 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-07-21 11:20:14,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:20:14,288 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-07-21 11:20:14,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-21 11:20:14,290 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:20:14,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:20:14,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:20:14,506 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:20:14,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:20:14,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1259031447, now seen corresponding path program 1 times [2020-07-21 11:20:14,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:20:14,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143050071] [2020-07-21 11:20:14,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:20:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:20:14,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-21 11:20:14,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:20:14,587 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-07-21 11:20:14,587 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:20:14,591 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:20:14,591 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:20:14,592 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-07-21 11:20:14,631 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 11:20:14,633 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:20:14,636 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:20:14,637 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:20:14,637 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-07-21 11:20:14,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:20:14,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:20:14,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143050071] [2020-07-21 11:20:14,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:20:14,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 11:20:14,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810475450] [2020-07-21 11:20:14,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:20:14,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:20:14,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:20:14,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:20:14,658 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 7 states. [2020-07-21 11:20:14,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:20:14,729 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-07-21 11:20:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:20:14,729 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-07-21 11:20:14,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:20:14,730 INFO L225 Difference]: With dead ends: 18 [2020-07-21 11:20:14,730 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:20:14,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:20:14,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:20:14,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:20:14,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:20:14,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:20:14,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-21 11:20:14,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:20:14,734 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:20:14,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:20:14,734 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:20:14,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:20:14,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:20:14,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:20:15,052 INFO L264 CegarLoopResult]: At program point mutex_unlockENTRY(lines 25 29) the Hoare annotation is: (or (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|))) (= (select (select |#memory_int| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2020-07-21 11:20:15,052 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-07-21 11:20:15,053 INFO L268 CegarLoopResult]: For program point mutex_unlockEXIT(lines 25 29) no Hoare annotation was computed. [2020-07-21 11:20:15,053 INFO L264 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|))) [2020-07-21 11:20:15,053 INFO L268 CegarLoopResult]: For program point L27-3(line 27) no Hoare annotation was computed. [2020-07-21 11:20:15,053 INFO L268 CegarLoopResult]: For program point mutex_unlockFINAL(lines 25 29) no Hoare annotation was computed. [2020-07-21 11:20:15,053 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:20:15,054 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:20:15,054 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:20:15,054 INFO L268 CegarLoopResult]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-07-21 11:20:15,055 INFO L268 CegarLoopResult]: For program point errEXIT(lines 12 13) no Hoare annotation was computed. [2020-07-21 11:20:15,055 INFO L271 CegarLoopResult]: At program point errENTRY(lines 12 13) the Hoare annotation is: true [2020-07-21 11:20:15,055 INFO L268 CegarLoopResult]: For program point errFINAL(lines 12 13) no Hoare annotation was computed. [2020-07-21 11:20:15,056 INFO L264 CegarLoopResult]: At program point mutex_lockENTRY(lines 19 23) the Hoare annotation is: (or (= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0) (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|)))) [2020-07-21 11:20:15,056 INFO L268 CegarLoopResult]: For program point mutex_lockFINAL(lines 19 23) no Hoare annotation was computed. [2020-07-21 11:20:15,056 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-07-21 11:20:15,056 INFO L268 CegarLoopResult]: For program point mutex_lockEXIT(lines 19 23) no Hoare annotation was computed. [2020-07-21 11:20:15,056 INFO L264 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|))) [2020-07-21 11:20:15,056 INFO L268 CegarLoopResult]: For program point L21-3(line 21) no Hoare annotation was computed. [2020-07-21 11:20:15,057 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:20:15,058 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 11:20:15,058 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:20:15,058 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:20:15,058 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 31 43) the Hoare annotation is: true [2020-07-21 11:20:15,059 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 31 43) no Hoare annotation was computed. [2020-07-21 11:20:15,059 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 31 43) no Hoare annotation was computed. [2020-07-21 11:20:15,059 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-07-21 11:20:15,059 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (= 0 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-21 11:20:15,060 INFO L264 CegarLoopResult]: At program point L36-1(line 36) the Hoare annotation is: (= 1 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-21 11:20:15,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:20:15 BoogieIcfgContainer [2020-07-21 11:20:15,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:20:15,074 INFO L168 Benchmark]: Toolchain (without parser) took 2218.20 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 101.8 MB in the beginning and 101.2 MB in the end (delta: 654.0 kB). Peak memory consumption was 62.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:20:15,077 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 11:20:15,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.53 ms. Allocated memory is still 140.0 MB. Free memory was 101.4 MB in the beginning and 91.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:20:15,080 INFO L168 Benchmark]: Boogie Preprocessor took 134.54 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 91.3 MB in the beginning and 179.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:20:15,085 INFO L168 Benchmark]: RCFGBuilder took 351.49 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 165.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-21 11:20:15,087 INFO L168 Benchmark]: TraceAbstraction took 1431.51 ms. Allocated memory is still 201.3 MB. Free memory was 165.0 MB in the beginning and 101.2 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:20:15,097 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 293.53 ms. Allocated memory is still 140.0 MB. Free memory was 101.4 MB in the beginning and 91.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.54 ms. Allocated memory was 140.0 MB in the beginning and 201.3 MB in the end (delta: 61.3 MB). Free memory was 91.3 MB in the beginning and 179.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 351.49 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 165.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1431.51 ms. Allocated memory is still 201.3 MB. Free memory was 165.0 MB in the beginning and 101.2 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 4 SDslu, 96 SDs, 0 SdLazy, 40 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 11 LocationsWithAnnotation, 15 PreInvPairs, 16 NumberOfFragments, 67 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1104 SizeOfPredicates, 14 NumberOfNonLiveVariables, 125 ConjunctsInSsa, 35 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...