/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_int.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:20:05,309 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 11:20:05,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:20:05,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:20:05,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:20:05,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:20:05,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:20:05,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:20:05,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:20:05,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:20:05,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:20:05,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:20:05,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:20:05,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:20:05,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:20:05,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:20:05,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:20:05,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:20:05,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:20:05,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:20:05,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:20:05,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:20:05,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:20:05,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:20:05,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:20:05,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:20:05,412 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 11:20:05,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:20:05,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:20:05,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:20:05,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:20:05,446 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:20:05,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:20:05,446 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:20:05,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:20:05,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:20:05,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:20:05,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:20:05,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:20:05,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:20:05,447 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:20:05,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:20:05,448 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:20:05,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:20:05,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:20:05,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:20:05,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:20:05,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:20:05,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:20:05,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:20:05,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:20:05,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:20:05,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:20:05,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:20:05,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:20:05,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:20:05,451 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 11:20:05,774 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:20:05,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:20:05,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:20:05,796 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:20:05,796 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:20:05,797 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2020-07-21 11:20:05,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b05710d8/3fc63b454847444ebd702b66f5fce3cf/FLAGa6902c353 [2020-07-21 11:20:06,411 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:20:06,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2020-07-21 11:20:06,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b05710d8/3fc63b454847444ebd702b66f5fce3cf/FLAGa6902c353 [2020-07-21 11:20:06,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b05710d8/3fc63b454847444ebd702b66f5fce3cf [2020-07-21 11:20:06,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:20:06,755 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:20:06,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:20:06,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:20:06,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:20:06,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:20:06" (1/1) ... [2020-07-21 11:20:06,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@646f34c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:06, skipping insertion in model container [2020-07-21 11:20:06,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:20:06" (1/1) ... [2020-07-21 11:20:06,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:20:06,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:20:06,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:20:06,981 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:20:06,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:20:07,013 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:20:07,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:07 WrapperNode [2020-07-21 11:20:07,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:20:07,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:20:07,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:20:07,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:20:07,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:07" (1/1) ... [2020-07-21 11:20:07,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:07" (1/1) ... [2020-07-21 11:20:07,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:07" (1/1) ... [2020-07-21 11:20:07,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:07" (1/1) ... [2020-07-21 11:20:07,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:07" (1/1) ... [2020-07-21 11:20:07,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:07" (1/1) ... [2020-07-21 11:20:07,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:07" (1/1) ... [2020-07-21 11:20:07,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:20:07,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:20:07,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:20:07,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:20:07,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:07" (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 11:20:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:20:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:20:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-07-21 11:20:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-07-21 11:20:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-07-21 11:20:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:20:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:20:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-07-21 11:20:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-07-21 11:20:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 11:20:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 11:20:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-07-21 11:20:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:20:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 11:20:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 11:20:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:20:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:20:07,445 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:20:07,445 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 11:20:07,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:20:07 BoogieIcfgContainer [2020-07-21 11:20:07,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:20:07,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:20:07,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:20:07,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:20:07,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:20:06" (1/3) ... [2020-07-21 11:20:07,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b00842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:20:07, skipping insertion in model container [2020-07-21 11:20:07,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:20:07" (2/3) ... [2020-07-21 11:20:07,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b00842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:20:07, skipping insertion in model container [2020-07-21 11:20:07,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:20:07" (3/3) ... [2020-07-21 11:20:07,461 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_int.c_1.i [2020-07-21 11:20:07,474 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:20:07,482 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:20:07,499 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:20:07,527 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:20:07,527 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:20:07,527 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:20:07,528 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:20:07,528 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:20:07,528 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:20:07,529 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:20:07,529 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:20:07,552 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-21 11:20:07,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-21 11:20:07,560 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:20:07,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:20:07,562 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:20:07,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:20:07,570 INFO L82 PathProgramCache]: Analyzing trace with hash 589228543, now seen corresponding path program 1 times [2020-07-21 11:20:07,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:20:07,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2126746938] [2020-07-21 11:20:07,579 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 11:20:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:20:07,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 11:20:07,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:20:07,814 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 11:20:07,815 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:20:07,827 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:20:07,829 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:20:07,829 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-07-21 11:20:07,883 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 11:20:07,885 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:20:07,890 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:20:07,890 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 11:20:07,891 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-07-21 11:20:07,914 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 11:20:07,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:20:07,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2126746938] [2020-07-21 11:20:07,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:20:07,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:20:07,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497461902] [2020-07-21 11:20:07,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:20:07,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:20:07,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:20:07,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:20:07,941 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 5 states. [2020-07-21 11:20:08,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:20:08,041 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2020-07-21 11:20:08,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:20:08,044 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-21 11:20:08,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:20:08,055 INFO L225 Difference]: With dead ends: 46 [2020-07-21 11:20:08,055 INFO L226 Difference]: Without dead ends: 18 [2020-07-21 11:20:08,060 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 11:20:08,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-21 11:20:08,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-21 11:20:08,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-21 11:20:08,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-07-21 11:20:08,113 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2020-07-21 11:20:08,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:20:08,114 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-07-21 11:20:08,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:20:08,114 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-07-21 11:20:08,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-21 11:20:08,115 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:20:08,116 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 11:20:08,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:20:08,330 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:20:08,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:20:08,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1259031447, now seen corresponding path program 1 times [2020-07-21 11:20:08,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:20:08,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662976362] [2020-07-21 11:20:08,333 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 11:20:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:20:08,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-21 11:20:08,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:20:08,417 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 11:20:08,418 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:20:08,422 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:20:08,423 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 11:20:08,423 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-07-21 11:20:08,473 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 11:20:08,474 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 11:20:08,478 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 11:20:08,478 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 11:20:08,479 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2020-07-21 11:20:08,493 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 11:20:08,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:20:08,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662976362] [2020-07-21 11:20:08,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:20:08,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 11:20:08,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679856652] [2020-07-21 11:20:08,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:20:08,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:20:08,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:20:08,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:20:08,498 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 7 states. [2020-07-21 11:20:08,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:20:08,566 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-07-21 11:20:08,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:20:08,567 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-07-21 11:20:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:20:08,568 INFO L225 Difference]: With dead ends: 18 [2020-07-21 11:20:08,568 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:20:08,570 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 11:20:08,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:20:08,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:20:08,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:20:08,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:20:08,571 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-07-21 11:20:08,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:20:08,571 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:20:08,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:20:08,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:20:08,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:20:08,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:20:08,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:20:08,876 INFO L264 CegarLoopResult]: At program point mutex_unlockENTRY(lines 22 26) 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 11:20:08,876 INFO L268 CegarLoopResult]: For program point mutex_unlockEXIT(lines 22 26) no Hoare annotation was computed. [2020-07-21 11:20:08,877 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-07-21 11:20:08,877 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|))) [2020-07-21 11:20:08,877 INFO L268 CegarLoopResult]: For program point mutex_unlockFINAL(lines 22 26) no Hoare annotation was computed. [2020-07-21 11:20:08,877 INFO L268 CegarLoopResult]: For program point L24-3(line 24) no Hoare annotation was computed. [2020-07-21 11:20:08,877 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:20:08,878 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:20:08,878 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:20:08,878 INFO L268 CegarLoopResult]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-07-21 11:20:08,878 INFO L268 CegarLoopResult]: For program point errEXIT(lines 13 14) no Hoare annotation was computed. [2020-07-21 11:20:08,879 INFO L271 CegarLoopResult]: At program point errENTRY(lines 13 14) the Hoare annotation is: true [2020-07-21 11:20:08,879 INFO L268 CegarLoopResult]: For program point errFINAL(lines 13 14) no Hoare annotation was computed. [2020-07-21 11:20:08,879 INFO L264 CegarLoopResult]: At program point mutex_lockENTRY(lines 16 20) 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 11:20:08,879 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|))) [2020-07-21 11:20:08,879 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-07-21 11:20:08,880 INFO L268 CegarLoopResult]: For program point mutex_lockFINAL(lines 16 20) no Hoare annotation was computed. [2020-07-21 11:20:08,880 INFO L268 CegarLoopResult]: For program point mutex_lockEXIT(lines 16 20) no Hoare annotation was computed. [2020-07-21 11:20:08,880 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-07-21 11:20:08,880 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:20:08,880 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-21 11:20:08,880 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:20:08,881 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:20:08,881 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (= 0 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-21 11:20:08,881 INFO L264 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: (= 1 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-21 11:20:08,881 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 28 40) the Hoare annotation is: true [2020-07-21 11:20:08,881 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 28 40) no Hoare annotation was computed. [2020-07-21 11:20:08,882 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 28 40) no Hoare annotation was computed. [2020-07-21 11:20:08,882 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-07-21 11:20:08,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:20:08 BoogieIcfgContainer [2020-07-21 11:20:08,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:20:08,892 INFO L168 Benchmark]: Toolchain (without parser) took 2138.22 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 103.7 MB in the beginning and 103.1 MB in the end (delta: 655.9 kB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:20:08,893 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 11:20:08,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.63 ms. Allocated memory is still 145.2 MB. Free memory was 103.5 MB in the beginning and 93.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:20:08,895 INFO L168 Benchmark]: Boogie Preprocessor took 132.08 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 93.4 MB in the beginning and 181.1 MB in the end (delta: -87.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-21 11:20:08,896 INFO L168 Benchmark]: RCFGBuilder took 302.71 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 167.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-07-21 11:20:08,897 INFO L168 Benchmark]: TraceAbstraction took 1437.40 ms. Allocated memory is still 202.9 MB. Free memory was 167.2 MB in the beginning and 103.1 MB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 7.1 GB. [2020-07-21 11:20:08,900 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 257.63 ms. Allocated memory is still 145.2 MB. Free memory was 103.5 MB in the beginning and 93.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.08 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 93.4 MB in the beginning and 181.1 MB in the end (delta: -87.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 302.71 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 167.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1437.40 ms. Allocated memory is still 202.9 MB. Free memory was 167.2 MB in the beginning and 103.1 MB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: 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: 0.0s, 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, 0.3s 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...