/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 17:25:50,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 17:25:50,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 17:25:50,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 17:25:50,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 17:25:50,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 17:25:50,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 17:25:50,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 17:25:50,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 17:25:50,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 17:25:50,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 17:25:50,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 17:25:50,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 17:25:50,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 17:25:50,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 17:25:50,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 17:25:50,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 17:25:50,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 17:25:50,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 17:25:50,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 17:25:50,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 17:25:50,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 17:25:50,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 17:25:50,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 17:25:50,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 17:25:50,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 17:25:50,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 17:25:50,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 17:25:50,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 17:25:50,501 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 17:25:50,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 17:25:50,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 17:25:50,505 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 17:25:50,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 17:25:50,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 17:25:50,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 17:25:50,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 17:25:50,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 17:25:50,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 17:25:50,506 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 17:25:50,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 17:25:50,507 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 17:25:50,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 17:25:50,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 17:25:50,507 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 17:25:50,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 17:25:50,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 17:25:50,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 17:25:50,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 17:25:50,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 17:25:50,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 17:25:50,508 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 17:25:50,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 17:25:50,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 17:25:50,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 17:25:50,796 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 17:25:50,796 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 17:25:50,797 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-07-17 17:25:50,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ee072366/503904eaf7a541d0a0542d65b604e39b/FLAG9c1742a6a [2020-07-17 17:25:51,308 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 17:25:51,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-07-17 17:25:51,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ee072366/503904eaf7a541d0a0542d65b604e39b/FLAG9c1742a6a [2020-07-17 17:25:51,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ee072366/503904eaf7a541d0a0542d65b604e39b [2020-07-17 17:25:51,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 17:25:51,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 17:25:51,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 17:25:51,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 17:25:51,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 17:25:51,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:25:51" (1/1) ... [2020-07-17 17:25:51,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8154e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:25:51, skipping insertion in model container [2020-07-17 17:25:51,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:25:51" (1/1) ... [2020-07-17 17:25:51,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 17:25:51,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 17:25:51,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:25:52,006 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 17:25:52,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:25:52,037 INFO L208 MainTranslator]: Completed translation [2020-07-17 17:25:52,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:25:52 WrapperNode [2020-07-17 17:25:52,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 17:25:52,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 17:25:52,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 17:25:52,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 17:25:52,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:25:52" (1/1) ... [2020-07-17 17:25:52,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:25:52" (1/1) ... [2020-07-17 17:25:52,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:25:52" (1/1) ... [2020-07-17 17:25:52,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:25:52" (1/1) ... [2020-07-17 17:25:52,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:25:52" (1/1) ... [2020-07-17 17:25:52,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:25:52" (1/1) ... [2020-07-17 17:25:52,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:25:52" (1/1) ... [2020-07-17 17:25:52,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 17:25:52,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 17:25:52,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 17:25:52,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 17:25:52,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:25:52" (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 [2020-07-17 17:25:52,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 17:25:52,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 17:25:52,218 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-07-17 17:25:52,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-07-17 17:25:52,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-07-17 17:25:52,218 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 17:25:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 17:25:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-07-17 17:25:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-07-17 17:25:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 17:25:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 17:25:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-07-17 17:25:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 17:25:52,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 17:25:52,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 17:25:52,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 17:25:52,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 17:25:52,460 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 17:25:52,460 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 17:25:52,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:25:52 BoogieIcfgContainer [2020-07-17 17:25:52,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 17:25:52,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 17:25:52,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 17:25:52,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 17:25:52,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 05:25:51" (1/3) ... [2020-07-17 17:25:52,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422a1c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:25:52, skipping insertion in model container [2020-07-17 17:25:52,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:25:52" (2/3) ... [2020-07-17 17:25:52,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422a1c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:25:52, skipping insertion in model container [2020-07-17 17:25:52,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:25:52" (3/3) ... [2020-07-17 17:25:52,497 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct.c_1.i [2020-07-17 17:25:52,507 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 17:25:52,515 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 17:25:52,529 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 17:25:52,549 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 17:25:52,549 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 17:25:52,549 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 17:25:52,549 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 17:25:52,550 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 17:25:52,550 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 17:25:52,550 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 17:25:52,550 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 17:25:52,563 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-07-17 17:25:52,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-17 17:25:52,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:25:52,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:25:52,573 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:25:52,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:25:52,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1355543847, now seen corresponding path program 1 times [2020-07-17 17:25:52,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:25:52,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670084541] [2020-07-17 17:25:52,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:25:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:25:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:25:52,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:25:52,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670084541] [2020-07-17 17:25:52,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:25:52,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 17:25:52,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848206465] [2020-07-17 17:25:52,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 17:25:52,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:25:52,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 17:25:52,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-17 17:25:52,862 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 7 states. [2020-07-17 17:25:53,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:25:53,118 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2020-07-17 17:25:53,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 17:25:53,120 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-07-17 17:25:53,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:25:53,129 INFO L225 Difference]: With dead ends: 60 [2020-07-17 17:25:53,129 INFO L226 Difference]: Without dead ends: 25 [2020-07-17 17:25:53,133 INFO L675 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 [2020-07-17 17:25:53,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-07-17 17:25:53,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-07-17 17:25:53,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-17 17:25:53,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2020-07-17 17:25:53,173 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 16 [2020-07-17 17:25:53,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:25:53,174 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2020-07-17 17:25:53,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 17:25:53,174 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2020-07-17 17:25:53,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-17 17:25:53,176 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:25:53,176 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] [2020-07-17 17:25:53,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 17:25:53,177 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:25:53,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:25:53,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1044574925, now seen corresponding path program 1 times [2020-07-17 17:25:53,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:25:53,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166320129] [2020-07-17 17:25:53,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:25:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:25:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:25:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:25:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:25:53,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166320129] [2020-07-17 17:25:53,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:25:53,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 17:25:53,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699701540] [2020-07-17 17:25:53,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 17:25:53,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:25:53,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 17:25:53,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-07-17 17:25:53,372 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 10 states. [2020-07-17 17:25:53,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:25:53,633 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-07-17 17:25:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 17:25:53,634 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-07-17 17:25:53,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:25:53,635 INFO L225 Difference]: With dead ends: 25 [2020-07-17 17:25:53,635 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 17:25:53,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2020-07-17 17:25:53,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 17:25:53,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 17:25:53,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 17:25:53,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 17:25:53,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-07-17 17:25:53,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:25:53,638 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 17:25:53,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 17:25:53,638 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 17:25:53,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 17:25:53,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 17:25:53,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 17:25:54,008 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (or (and (= 1 (select (select |#memory_int| mutex_unlock_~b.base) mutex_unlock_~b.offset)) (= |#memory_int| |old(#memory_int)|)) (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|)))) [2020-07-17 17:25:54,009 INFO L264 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (or (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|))) (and (= 1 |mutex_unlock_#t~mem1|) (= 1 (select (select |#memory_int| mutex_unlock_~b.base) mutex_unlock_~b.offset)) (= |#memory_int| |old(#memory_int)|))) [2020-07-17 17:25:54,009 INFO L264 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|))) [2020-07-17 17:25:54,009 INFO L264 CegarLoopResult]: At program point L27-3(line 27) the Hoare annotation is: (not (= 1 (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|))) [2020-07-17 17:25:54,009 INFO L271 CegarLoopResult]: At program point L27-5(line 27) the Hoare annotation is: true [2020-07-17 17:25:54,009 INFO L271 CegarLoopResult]: At program point L27-6(line 27) the Hoare annotation is: true [2020-07-17 17:25:54,010 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|))) (= |#memory_int| |old(#memory_int)|)) [2020-07-17 17:25:54,010 INFO L271 CegarLoopResult]: At program point mutex_unlockEXIT(lines 25 29) the Hoare annotation is: true [2020-07-17 17:25:54,010 INFO L271 CegarLoopResult]: At program point mutex_unlockFINAL(lines 25 29) the Hoare annotation is: true [2020-07-17 17:25:54,010 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 17:25:54,011 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-17 17:25:54,011 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 17:25:54,011 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-17 17:25:54,011 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 17:25:54,011 INFO L271 CegarLoopResult]: At program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) the Hoare annotation is: true [2020-07-17 17:25:54,012 INFO L271 CegarLoopResult]: At program point errEXIT(lines 12 13) the Hoare annotation is: true [2020-07-17 17:25:54,012 INFO L271 CegarLoopResult]: At program point errENTRY(lines 12 13) the Hoare annotation is: true [2020-07-17 17:25:54,012 INFO L271 CegarLoopResult]: At program point errFINAL(lines 12 13) the Hoare annotation is: true [2020-07-17 17:25:54,012 INFO L264 CegarLoopResult]: At program point mutex_lockENTRY(lines 19 23) the Hoare annotation is: (or (= |#memory_int| |old(#memory_int)|) (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|)))) [2020-07-17 17:25:54,013 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (or (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|)) (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|)))) [2020-07-17 17:25:54,013 INFO L264 CegarLoopResult]: At program point mutex_lockEXIT(lines 19 23) the Hoare annotation is: (or (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset)) (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|)))) [2020-07-17 17:25:54,013 INFO L264 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (or (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= 0 |mutex_lock_#t~mem0|) (= |#memory_int| |old(#memory_int)|)) (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|)))) [2020-07-17 17:25:54,014 INFO L264 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|))) [2020-07-17 17:25:54,014 INFO L264 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|))) [2020-07-17 17:25:54,014 INFO L264 CegarLoopResult]: At program point L21-5(line 21) the Hoare annotation is: (or (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= 0 |mutex_lock_#t~mem0|) (= |#memory_int| |old(#memory_int)|)) (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|)))) [2020-07-17 17:25:54,014 INFO L264 CegarLoopResult]: At program point L21-6(line 21) the Hoare annotation is: (or (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|)) (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|)))) [2020-07-17 17:25:54,014 INFO L264 CegarLoopResult]: At program point mutex_lockFINAL(lines 19 23) the Hoare annotation is: (or (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset)) (not (= 0 (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|)))) [2020-07-17 17:25:54,015 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 17:25:54,015 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 17:25:54,015 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 17:25:54,015 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 17:25:54,015 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-07-17 17:25:54,016 INFO L271 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: true [2020-07-17 17:25:54,016 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 31 43) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|)) [2020-07-17 17:25:54,016 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 31 43) the Hoare annotation is: true [2020-07-17 17:25:54,016 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 31 43) the Hoare annotation is: true [2020-07-17 17:25:54,016 INFO L271 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: true [2020-07-17 17:25:54,017 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (= 1 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-17 17:25:54,017 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (= 0 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2020-07-17 17:25:54,032 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-17 17:25:54,033 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-17 17:25:54,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 05:25:54 BoogieIcfgContainer [2020-07-17 17:25:54,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 17:25:54,043 INFO L168 Benchmark]: Toolchain (without parser) took 2299.45 ms. Allocated memory was 144.7 MB in the beginning and 235.9 MB in the end (delta: 91.2 MB). Free memory was 101.4 MB in the beginning and 137.9 MB in the end (delta: -36.5 MB). Peak memory consumption was 54.8 MB. Max. memory is 7.1 GB. [2020-07-17 17:25:54,044 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 144.7 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 17:25:54,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.92 ms. Allocated memory is still 144.7 MB. Free memory was 101.0 MB in the beginning and 90.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-17 17:25:54,046 INFO L168 Benchmark]: Boogie Preprocessor took 121.04 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 90.9 MB in the beginning and 181.1 MB in the end (delta: -90.2 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-17 17:25:54,047 INFO L168 Benchmark]: RCFGBuilder took 305.86 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 166.8 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-17 17:25:54,048 INFO L168 Benchmark]: TraceAbstraction took 1566.54 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.2 MB in the beginning and 137.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 GB. [2020-07-17 17:25:54,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 144.7 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 290.92 ms. Allocated memory is still 144.7 MB. Free memory was 101.0 MB in the beginning and 90.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.04 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 90.9 MB in the beginning and 181.1 MB in the end (delta: -90.2 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 305.86 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 166.8 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1566.54 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.2 MB in the beginning and 137.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 7.1 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: 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 - ProcedureContractResult [Line: 25]: Procedure Contract for mutex_unlock Derived contract for procedure mutex_unlock: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for err Derived contract for procedure err: 1 - ProcedureContractResult [Line: 19]: Procedure Contract for mutex_lock [2020-07-17 17:25:54,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-17 17:25:54,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-17 17:25:54,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-17 17:25:54,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure mutex_lock: ((a == a && unknown-#memory_int-unknown[a][a] == 1) && a == a) || !(0 == \old(unknown-#memory_int-unknown)[a][a]) - ProcedureContractResult [Line: 31]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 43 SDslu, 89 SDs, 0 SdLazy, 179 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 39 LocationsWithAnnotation, 56 PreInvPairs, 69 NumberOfFragments, 281 HoareAnnotationTreeSize, 56 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 39 FomulaSimplificationsInter, 265 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 2730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...