/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:04:31,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:04:31,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:04:31,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 19:04:31,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:04:31,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:04:31,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:04:31,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:04:31,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:04:31,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:04:31,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:04:31,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:04:31,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:04:31,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:04:31,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:04:31,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:04:31,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:04:31,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:04:31,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:04:31,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:04:31,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:04:31,945 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:04:31,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:04:31,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:04:31,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:04:31,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:04:31,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:04:31,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:04:31,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:04:31,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:04:31,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:04:31,949 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:04:31,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:04:31,950 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:04:31,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:04:31,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:04:31,950 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:04:31,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:04:31,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:04:31,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:04:31,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:04:31,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:04:31,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:04:31,952 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:04:32,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:04:32,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:04:32,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:04:32,255 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:04:32,256 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:04:32,257 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-08-22 19:04:32,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da3453538/46394aa0b64a4d6cbb71573420c5f054/FLAG584a25802 [2020-08-22 19:04:32,769 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:04:32,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2020-08-22 19:04:32,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da3453538/46394aa0b64a4d6cbb71573420c5f054/FLAG584a25802 [2020-08-22 19:04:33,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da3453538/46394aa0b64a4d6cbb71573420c5f054 [2020-08-22 19:04:33,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:04:33,211 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:04:33,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:04:33,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:04:33,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:04:33,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:04:33" (1/1) ... [2020-08-22 19:04:33,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74619ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:33, skipping insertion in model container [2020-08-22 19:04:33,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:04:33" (1/1) ... [2020-08-22 19:04:33,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:04:33,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:04:33,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:04:33,414 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:04:33,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:04:33,447 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:04:33,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:33 WrapperNode [2020-08-22 19:04:33,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:04:33,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:04:33,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:04:33,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:04:33,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:33" (1/1) ... [2020-08-22 19:04:33,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:33" (1/1) ... [2020-08-22 19:04:33,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:33" (1/1) ... [2020-08-22 19:04:33,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:33" (1/1) ... [2020-08-22 19:04:33,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:33" (1/1) ... [2020-08-22 19:04:33,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:33" (1/1) ... [2020-08-22 19:04:33,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:33" (1/1) ... [2020-08-22 19:04:33,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:04:33,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:04:33,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:04:33,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:04:33,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:33" (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 [2020-08-22 19:04:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:04:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:04:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2020-08-22 19:04:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-08-22 19:04:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-08-22 19:04:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:04:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:04:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure err [2020-08-22 19:04:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-08-22 19:04:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 19:04:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 19:04:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-08-22 19:04:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:04:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 19:04:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 19:04:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:04:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:04:33,835 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:04:33,836 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 19:04:33,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:04:33 BoogieIcfgContainer [2020-08-22 19:04:33,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:04:33,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:04:33,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:04:33,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:04:33,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:04:33" (1/3) ... [2020-08-22 19:04:33,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8cb003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:04:33, skipping insertion in model container [2020-08-22 19:04:33,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:33" (2/3) ... [2020-08-22 19:04:33,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8cb003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:04:33, skipping insertion in model container [2020-08-22 19:04:33,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:04:33" (3/3) ... [2020-08-22 19:04:33,848 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct.c_1.i [2020-08-22 19:04:33,858 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:04:33,866 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:04:33,882 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:04:33,920 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:04:33,921 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:04:33,921 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:04:33,921 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:04:33,921 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:04:33,922 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:04:33,922 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:04:33,922 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:04:33,942 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-08-22 19:04:33,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-22 19:04:33,955 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:04:33,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:04:33,957 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:04:33,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:04:33,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1355543847, now seen corresponding path program 1 times [2020-08-22 19:04:33,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:04:33,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667713221] [2020-08-22 19:04:33,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:04:34,056 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:04:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:34,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:04:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:04:34,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667713221] [2020-08-22 19:04:34,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:04:34,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:04:34,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506028672] [2020-08-22 19:04:34,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:04:34,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:04:34,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:04:34,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:04:34,271 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 7 states. [2020-08-22 19:04:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:04:34,499 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2020-08-22 19:04:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 19:04:34,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-08-22 19:04:34,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:04:34,510 INFO L225 Difference]: With dead ends: 60 [2020-08-22 19:04:34,510 INFO L226 Difference]: Without dead ends: 25 [2020-08-22 19:04:34,514 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 [2020-08-22 19:04:34,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-08-22 19:04:34,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-08-22 19:04:34,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-08-22 19:04:34,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2020-08-22 19:04:34,559 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 16 [2020-08-22 19:04:34,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:04:34,559 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2020-08-22 19:04:34,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:04:34,560 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2020-08-22 19:04:34,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-22 19:04:34,561 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:04:34,562 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] [2020-08-22 19:04:34,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:04:34,562 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:04:34,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:04:34,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1044574925, now seen corresponding path program 1 times [2020-08-22 19:04:34,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:04:34,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1550231361] [2020-08-22 19:04:34,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:04:34,566 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:04:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:34,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:04:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:34,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 19:04:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:04:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:04:34,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1550231361] [2020-08-22 19:04:34,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:04:34,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 19:04:34,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979899093] [2020-08-22 19:04:34,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 19:04:34,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:04:34,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 19:04:34,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:04:34,729 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 10 states. [2020-08-22 19:04:34,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:04:34,995 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-08-22 19:04:34,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 19:04:34,996 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-08-22 19:04:34,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:04:34,997 INFO L225 Difference]: With dead ends: 25 [2020-08-22 19:04:34,997 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 19:04:34,999 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 [2020-08-22 19:04:34,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 19:04:35,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 19:04:35,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 19:04:35,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 19:04:35,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-08-22 19:04:35,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:04:35,001 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 19:04:35,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 19:04:35,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 19:04:35,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 19:04:35,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:04:35,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 19:04:35,360 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) (and (= |#memory_int| |old(#memory_int)|) (= (select (select |#memory_int| mutex_unlock_~b.base) mutex_unlock_~b.offset) 1))) [2020-08-22 19:04:35,360 INFO L264 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (or (and (= |#memory_int| |old(#memory_int)|) (= |mutex_unlock_#t~mem1| 1) (= (select (select |#memory_int| mutex_unlock_~b.base) mutex_unlock_~b.offset) 1)) (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1))) [2020-08-22 19:04:35,360 INFO L264 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2020-08-22 19:04:35,361 INFO L264 CegarLoopResult]: At program point L27-3(line 27) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2020-08-22 19:04:35,361 INFO L271 CegarLoopResult]: At program point L27-5(line 27) the Hoare annotation is: true [2020-08-22 19:04:35,361 INFO L271 CegarLoopResult]: At program point L27-6(line 27) the Hoare annotation is: true [2020-08-22 19:04:35,361 INFO L264 CegarLoopResult]: At program point mutex_unlockENTRY(lines 25 29) the Hoare annotation is: (or (= |#memory_int| |old(#memory_int)|) (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1))) [2020-08-22 19:04:35,362 INFO L271 CegarLoopResult]: At program point mutex_unlockEXIT(lines 25 29) the Hoare annotation is: true [2020-08-22 19:04:35,362 INFO L271 CegarLoopResult]: At program point mutex_unlockFINAL(lines 25 29) the Hoare annotation is: true [2020-08-22 19:04:35,362 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:04:35,362 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-08-22 19:04:35,363 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:04:35,363 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-08-22 19:04:35,363 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:04:35,364 INFO L271 CegarLoopResult]: At program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) the Hoare annotation is: true [2020-08-22 19:04:35,364 INFO L271 CegarLoopResult]: At program point errEXIT(lines 12 13) the Hoare annotation is: true [2020-08-22 19:04:35,364 INFO L271 CegarLoopResult]: At program point errENTRY(lines 12 13) the Hoare annotation is: true [2020-08-22 19:04:35,365 INFO L271 CegarLoopResult]: At program point errFINAL(lines 12 13) the Hoare annotation is: true [2020-08-22 19:04:35,365 INFO L264 CegarLoopResult]: At program point mutex_lockENTRY(lines 19 23) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (= |#memory_int| |old(#memory_int)|)) [2020-08-22 19:04:35,365 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2020-08-22 19:04:35,365 INFO L264 CegarLoopResult]: At program point mutex_lockEXIT(lines 19 23) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1))) [2020-08-22 19:04:35,366 INFO L264 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#t~mem0| 0) (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2020-08-22 19:04:35,366 INFO L264 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2020-08-22 19:04:35,366 INFO L264 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2020-08-22 19:04:35,366 INFO L264 CegarLoopResult]: At program point L21-5(line 21) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#t~mem0| 0) (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2020-08-22 19:04:35,367 INFO L264 CegarLoopResult]: At program point L21-6(line 21) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= |#memory_int| |old(#memory_int)|))) [2020-08-22 19:04:35,367 INFO L264 CegarLoopResult]: At program point mutex_lockFINAL(lines 19 23) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (and (= |mutex_lock_#in~a.base| mutex_lock_~a.base) (= |mutex_lock_#in~a.offset| mutex_lock_~a.offset) (= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 1))) [2020-08-22 19:04:35,367 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:04:35,368 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:04:35,368 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 19:04:35,368 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:04:35,368 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-08-22 19:04:35,369 INFO L271 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: true [2020-08-22 19:04:35,369 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 31 43) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-08-22 19:04:35,369 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 31 43) the Hoare annotation is: true [2020-08-22 19:04:35,369 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 31 43) the Hoare annotation is: true [2020-08-22 19:04:35,369 INFO L271 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: true [2020-08-22 19:04:35,369 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 1) [2020-08-22 19:04:35,370 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 0) [2020-08-22 19:04:35,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 19:04:35,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 19:04:35,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:04:35 BoogieIcfgContainer [2020-08-22 19:04:35,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:04:35,392 INFO L168 Benchmark]: Toolchain (without parser) took 2180.66 ms. Allocated memory was 138.4 MB in the beginning and 233.3 MB in the end (delta: 94.9 MB). Free memory was 102.7 MB in the beginning and 132.8 MB in the end (delta: -30.0 MB). Peak memory consumption was 64.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:04:35,393 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.9 MB in the beginning and 120.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-22 19:04:35,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.08 ms. Allocated memory is still 138.4 MB. Free memory was 102.3 MB in the beginning and 92.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-08-22 19:04:35,395 INFO L168 Benchmark]: Boogie Preprocessor took 119.16 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 178.6 MB in the end (delta: -86.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-08-22 19:04:35,396 INFO L168 Benchmark]: RCFGBuilder took 271.64 ms. Allocated memory is still 201.3 MB. Free memory was 178.4 MB in the beginning and 164.0 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-08-22 19:04:35,397 INFO L168 Benchmark]: TraceAbstraction took 1548.52 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 164.0 MB in the beginning and 132.8 MB in the end (delta: 31.3 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:04:35,401 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 120.9 MB in the beginning and 120.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 236.08 ms. Allocated memory is still 138.4 MB. Free memory was 102.3 MB in the beginning and 92.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.16 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 178.6 MB in the end (delta: -86.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 271.64 ms. Allocated memory is still 201.3 MB. Free memory was 178.4 MB in the beginning and 164.0 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1548.52 ms. Allocated memory was 201.3 MB in the beginning and 233.3 MB in the end (delta: 32.0 MB). Free memory was 164.0 MB in the beginning and 132.8 MB in the end (delta: 31.3 MB). Peak memory consumption was 63.2 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 [2020-08-22 19:04:35,410 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 19:04:35,410 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 19:04:35,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-08-22 19:04:35,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived contract for procedure mutex_lock: !(\old(unknown-#memory_int-unknown)[a][a] == 0) || ((a == a && a == a) && unknown-#memory_int-unknown[a][a] == 1) - ProcedureContractResult [Line: 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: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...