/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:35:55,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:35:55,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:35:55,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 13:35:55,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:35:55,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:35:55,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:35:55,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:35:55,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:35:55,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:35:55,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:35:55,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:35:55,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:35:55,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:35:55,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:35:55,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:35:55,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 13:35:55,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:35:55,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:35:55,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:35:55,591 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 [2021-02-23 13:35:55,642 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:35:55,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:35:55,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:35:55,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:35:55,647 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:35:55,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:35:55,647 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:35:55,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:35:55,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:35:55,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:35:55,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:35:55,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:35:55,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:35:55,650 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:35:55,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:35:55,650 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:35:55,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:35:55,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:35:55,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:35:55,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:35:55,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:35:55,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:35:55,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:35:55,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:35:55,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:35:55,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:35:55,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:35:55,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:35:55,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:35:56,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:35:56,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:35:56,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:35:56,165 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:35:56,166 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:35:56,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2021-02-23 13:35:56,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0866561cb/065df3d9773841c39b3af43eee431cd1/FLAGc980764f8 [2021-02-23 13:35:56,984 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:35:56,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i [2021-02-23 13:35:56,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0866561cb/065df3d9773841c39b3af43eee431cd1/FLAGc980764f8 [2021-02-23 13:35:57,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0866561cb/065df3d9773841c39b3af43eee431cd1 [2021-02-23 13:35:57,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:35:57,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:35:57,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:35:57,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:35:57,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:35:57,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:35:57" (1/1) ... [2021-02-23 13:35:57,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f9ccde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:35:57, skipping insertion in model container [2021-02-23 13:35:57,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:35:57" (1/1) ... [2021-02-23 13:35:57,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:35:57,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:35:57,541 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i[297,310] [2021-02-23 13:35:57,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:35:57,568 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:35:57,582 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_int.c_1.i[297,310] [2021-02-23 13:35:57,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:35:57,601 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:35:57,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:35:57 WrapperNode [2021-02-23 13:35:57,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:35:57,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:35:57,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:35:57,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:35:57,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:35:57" (1/1) ... [2021-02-23 13:35:57,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:35:57" (1/1) ... [2021-02-23 13:35:57,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:35:57" (1/1) ... [2021-02-23 13:35:57,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:35:57" (1/1) ... [2021-02-23 13:35:57,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:35:57" (1/1) ... [2021-02-23 13:35:57,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:35:57" (1/1) ... [2021-02-23 13:35:57,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:35:57" (1/1) ... [2021-02-23 13:35:57,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:35:57,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:35:57,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:35:57,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:35:57,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:35:57" (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 [2021-02-23 13:35:57,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:35:57,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:35:57,753 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:35:57,753 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2021-02-23 13:35:57,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-02-23 13:35:57,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-02-23 13:35:57,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:35:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:35:57,755 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:35:57,755 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:35:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:35:57,756 INFO L130 BoogieDeclarations]: Found specification of procedure err [2021-02-23 13:35:57,757 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-02-23 13:35:57,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:35:57,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:35:57,759 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-02-23 13:35:57,759 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:35:57,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:35:57,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:35:57,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:35:57,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:35:58,174 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:35:58,174 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 13:35:58,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:35:58 BoogieIcfgContainer [2021-02-23 13:35:58,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:35:58,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:35:58,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:35:58,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:35:58,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:35:57" (1/3) ... [2021-02-23 13:35:58,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102ad489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:35:58, skipping insertion in model container [2021-02-23 13:35:58,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:35:57" (2/3) ... [2021-02-23 13:35:58,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102ad489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:35:58, skipping insertion in model container [2021-02-23 13:35:58,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:35:58" (3/3) ... [2021-02-23 13:35:58,201 INFO L111 eAbstractionObserver]: Analyzing ICFG mutex_lock_int.c_1.i [2021-02-23 13:35:58,209 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:35:58,214 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:35:58,239 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:35:58,274 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:35:58,275 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:35:58,275 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:35:58,275 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:35:58,275 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:35:58,275 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:35:58,276 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:35:58,276 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:35:58,335 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2021-02-23 13:35:58,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-02-23 13:35:58,351 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:35:58,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:35:58,353 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:35:58,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:35:58,370 INFO L82 PathProgramCache]: Analyzing trace with hash 2065797830, now seen corresponding path program 1 times [2021-02-23 13:35:58,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:35:58,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638110681] [2021-02-23 13:35:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:35:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:35:58,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:58,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:35:58,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:58,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:35:58,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:58,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:35:58,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:58,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:35:58,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:58,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:35:58,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:35:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:35:58,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:58,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:35:58,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:35:58,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638110681] [2021-02-23 13:35:58,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:35:58,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 13:35:58,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40965401] [2021-02-23 13:35:58,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 13:35:58,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:35:58,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 13:35:58,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-23 13:35:58,829 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2021-02-23 13:35:59,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:35:59,077 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2021-02-23 13:35:59,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 13:35:59,079 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2021-02-23 13:35:59,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:35:59,086 INFO L225 Difference]: With dead ends: 46 [2021-02-23 13:35:59,086 INFO L226 Difference]: Without dead ends: 18 [2021-02-23 13:35:59,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-23 13:35:59,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-02-23 13:35:59,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-02-23 13:35:59,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-02-23 13:35:59,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-02-23 13:35:59,133 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2021-02-23 13:35:59,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:35:59,133 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-02-23 13:35:59,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 13:35:59,134 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-02-23 13:35:59,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-23 13:35:59,134 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:35:59,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:35:59,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:35:59,135 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:35:59,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:35:59,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1712350896, now seen corresponding path program 1 times [2021-02-23 13:35:59,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:35:59,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058768164] [2021-02-23 13:35:59,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:35:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:35:59,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:59,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:35:59,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:59,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:35:59,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:59,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:35:59,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:59,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:35:59,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:59,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:35:59,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:35:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:35:59,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:59,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:35:59,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-23 13:35:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:35:59,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:59,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:35:59,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:35:59,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:35:59,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:35:59,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058768164] [2021-02-23 13:35:59,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:35:59,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 13:35:59,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614306619] [2021-02-23 13:35:59,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 13:35:59,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:35:59,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 13:35:59,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-02-23 13:35:59,373 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 9 states. [2021-02-23 13:35:59,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:35:59,655 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-02-23 13:35:59,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 13:35:59,655 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2021-02-23 13:35:59,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:35:59,656 INFO L225 Difference]: With dead ends: 18 [2021-02-23 13:35:59,656 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 13:35:59,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-02-23 13:35:59,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 13:35:59,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 13:35:59,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 13:35:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 13:35:59,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-02-23 13:35:59,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:35:59,660 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 13:35:59,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 13:35:59,660 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 13:35:59,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 13:35:59,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 13:35:59,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 13:35:59,866 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 13:35:59,866 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 13:35:59,866 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 13:35:59,868 INFO L185 CegarLoopUtils]: At program point mutex_unlockENTRY(lines 24 28) the Hoare annotation is: (or (= |#memory_int| |old(#memory_int)|) (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1))) [2021-02-23 13:35:59,868 INFO L189 CegarLoopUtils]: For program point mutex_unlockEXIT(lines 24 28) no Hoare annotation was computed. [2021-02-23 13:35:59,868 INFO L189 CegarLoopUtils]: For program point L26(line 26) no Hoare annotation was computed. [2021-02-23 13:35:59,868 INFO L185 CegarLoopUtils]: At program point L26-1(line 26) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2021-02-23 13:35:59,869 INFO L189 CegarLoopUtils]: For program point L26-3(line 26) no Hoare annotation was computed. [2021-02-23 13:35:59,869 INFO L189 CegarLoopUtils]: For program point mutex_unlockFINAL(lines 24 28) no Hoare annotation was computed. [2021-02-23 13:35:59,869 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:35:59,869 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |old(#t~string4.offset)| |#t~string4.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 13:35:59,869 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:35:59,870 INFO L189 CegarLoopUtils]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-02-23 13:35:59,870 INFO L189 CegarLoopUtils]: For program point errEXIT(lines 15 16) no Hoare annotation was computed. [2021-02-23 13:35:59,870 INFO L192 CegarLoopUtils]: At program point errENTRY(lines 15 16) the Hoare annotation is: true [2021-02-23 13:35:59,870 INFO L189 CegarLoopUtils]: For program point errFINAL(lines 15 16) no Hoare annotation was computed. [2021-02-23 13:35:59,870 INFO L185 CegarLoopUtils]: At program point mutex_lockENTRY(lines 18 22) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (= |#memory_int| |old(#memory_int)|)) [2021-02-23 13:35:59,870 INFO L189 CegarLoopUtils]: For program point L20-3(line 20) no Hoare annotation was computed. [2021-02-23 13:35:59,871 INFO L189 CegarLoopUtils]: For program point mutex_lockFINAL(lines 18 22) no Hoare annotation was computed. [2021-02-23 13:35:59,871 INFO L189 CegarLoopUtils]: For program point mutex_lockEXIT(lines 18 22) no Hoare annotation was computed. [2021-02-23 13:35:59,871 INFO L189 CegarLoopUtils]: For program point L20(line 20) no Hoare annotation was computed. [2021-02-23 13:35:59,871 INFO L185 CegarLoopUtils]: At program point L20-1(line 20) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2021-02-23 13:35:59,871 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:35:59,872 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 13:35:59,872 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 13:35:59,872 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:35:59,872 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 30 42) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-23 13:35:59,872 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 30 42) no Hoare annotation was computed. [2021-02-23 13:35:59,873 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 30 42) no Hoare annotation was computed. [2021-02-23 13:35:59,873 INFO L189 CegarLoopUtils]: For program point L37(line 37) no Hoare annotation was computed. [2021-02-23 13:35:59,873 INFO L185 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 0) [2021-02-23 13:35:59,873 INFO L185 CegarLoopUtils]: At program point L35-1(line 35) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 1) [2021-02-23 13:35:59,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:35:59 BoogieIcfgContainer [2021-02-23 13:35:59,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:35:59,884 INFO L168 Benchmark]: Toolchain (without parser) took 2528.50 ms. Allocated memory was 176.2 MB in the beginning and 248.5 MB in the end (delta: 72.4 MB). Free memory was 152.4 MB in the beginning and 204.9 MB in the end (delta: -52.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 8.0 GB. [2021-02-23 13:35:59,884 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 176.2 MB. Free memory is still 147.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:35:59,886 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.01 ms. Allocated memory is still 176.2 MB. Free memory was 151.5 MB in the beginning and 142.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 13:35:59,888 INFO L168 Benchmark]: Boogie Preprocessor took 31.92 ms. Allocated memory is still 176.2 MB. Free memory was 142.2 MB in the beginning and 140.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:35:59,889 INFO L168 Benchmark]: RCFGBuilder took 544.67 ms. Allocated memory is still 176.2 MB. Free memory was 140.8 MB in the beginning and 126.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-23 13:35:59,894 INFO L168 Benchmark]: TraceAbstraction took 1697.59 ms. Allocated memory was 176.2 MB in the beginning and 248.5 MB in the end (delta: 72.4 MB). Free memory was 125.9 MB in the beginning and 204.9 MB in the end (delta: -79.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:35:59,903 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 176.2 MB. Free memory is still 147.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 235.01 ms. Allocated memory is still 176.2 MB. Free memory was 151.5 MB in the beginning and 142.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.92 ms. Allocated memory is still 176.2 MB. Free memory was 142.2 MB in the beginning and 140.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 544.67 ms. Allocated memory is still 176.2 MB. Free memory was 140.8 MB in the beginning and 126.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1697.59 ms. Allocated memory was 176.2 MB in the beginning and 248.5 MB in the end (delta: 72.4 MB). Free memory was 125.9 MB in the beginning and 204.9 MB in the end (delta: -79.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 19 SDslu, 57 SDs, 0 SdLazy, 104 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s 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, 98 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 103 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1916 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...