/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_struct.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:43:14,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:43:14,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:43:14,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 17:43:14,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:43:14,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:43:14,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:43:14,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:43:14,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:43:14,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:43:14,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:43:14,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:43:14,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:43:14,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:43:14,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:43:14,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:43:14,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 17:43:14,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:43:14,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:43:14,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:43:14,407 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 [2021-02-19 17:43:14,470 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:43:14,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:43:14,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:43:14,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:43:14,477 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:43:14,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:43:14,478 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:43:14,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:43:14,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:43:14,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:43:14,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:43:14,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:43:14,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:43:14,482 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:43:14,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:43:14,483 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:43:14,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:43:14,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:43:14,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:43:14,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:43:14,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:43:14,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:43:14,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:43:14,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:43:14,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:43:14,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:43:14,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:43:14,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:43:14,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:43:14,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:43:15,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:43:15,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:43:15,011 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:43:15,012 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:43:15,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2021-02-19 17:43:15,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327b7c30b/899c75bbb1f6433db687586f6c8885d4/FLAGa8822d553 [2021-02-19 17:43:15,701 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:43:15,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2021-02-19 17:43:15,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327b7c30b/899c75bbb1f6433db687586f6c8885d4/FLAGa8822d553 [2021-02-19 17:43:16,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327b7c30b/899c75bbb1f6433db687586f6c8885d4 [2021-02-19 17:43:16,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:43:16,110 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:43:16,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:43:16,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:43:16,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:43:16,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:43:16" (1/1) ... [2021-02-19 17:43:16,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3596e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:43:16, skipping insertion in model container [2021-02-19 17:43:16,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:43:16" (1/1) ... [2021-02-19 17:43:16,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:43:16,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:43:16,362 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_struct.c_1.i[299,312] [2021-02-19 17:43:16,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:43:16,411 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:43:16,426 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_struct.c_1.i[299,312] [2021-02-19 17:43:16,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:43:16,450 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:43:16,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:43:16 WrapperNode [2021-02-19 17:43:16,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:43:16,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:43:16,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:43:16,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:43:16,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:43:16" (1/1) ... [2021-02-19 17:43:16,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:43:16" (1/1) ... [2021-02-19 17:43:16,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:43:16" (1/1) ... [2021-02-19 17:43:16,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:43:16" (1/1) ... [2021-02-19 17:43:16,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:43:16" (1/1) ... [2021-02-19 17:43:16,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:43:16" (1/1) ... [2021-02-19 17:43:16,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:43:16" (1/1) ... [2021-02-19 17:43:16,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:43:16,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:43:16,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:43:16,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:43:16,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:43:16" (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 [2021-02-19 17:43:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:43:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:43:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:43:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2021-02-19 17:43:16,595 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-02-19 17:43:16,595 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-02-19 17:43:16,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:43:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:43:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:43:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:43:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:43:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure err [2021-02-19 17:43:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-02-19 17:43:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:43:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:43:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-02-19 17:43:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:43:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:43:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:43:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:43:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:43:16,861 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:43:16,862 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 17:43:16,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:43:16 BoogieIcfgContainer [2021-02-19 17:43:16,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:43:16,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:43:16,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:43:16,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:43:16,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:43:16" (1/3) ... [2021-02-19 17:43:16,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1febf96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:43:16, skipping insertion in model container [2021-02-19 17:43:16,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:43:16" (2/3) ... [2021-02-19 17:43:16,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1febf96a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:43:16, skipping insertion in model container [2021-02-19 17:43:16,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:43:16" (3/3) ... [2021-02-19 17:43:16,909 INFO L111 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct.c_1.i [2021-02-19 17:43:16,950 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:43:16,959 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:43:17,022 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:43:17,094 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:43:17,094 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:43:17,094 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:43:17,094 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:43:17,094 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:43:17,095 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:43:17,095 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:43:17,095 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:43:17,136 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2021-02-19 17:43:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-02-19 17:43:17,143 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:43:17,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:43:17,145 INFO L428 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:43:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:43:17,163 INFO L82 PathProgramCache]: Analyzing trace with hash 2065797830, now seen corresponding path program 1 times [2021-02-19 17:43:17,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:43:17,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182367644] [2021-02-19 17:43:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:43:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:43:17,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:17,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:43:17,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:17,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:43:17,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:17,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:43:17,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:17,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:43:17,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:17,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:43:17,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:43:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:43:17,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:17,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:43:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:43:17,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182367644] [2021-02-19 17:43:17,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:43:17,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 17:43:17,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482286843] [2021-02-19 17:43:17,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 17:43:17,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:43:17,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 17:43:17,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-19 17:43:17,701 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2021-02-19 17:43:17,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:43:17,875 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2021-02-19 17:43:17,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 17:43:17,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2021-02-19 17:43:17,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:43:17,884 INFO L225 Difference]: With dead ends: 46 [2021-02-19 17:43:17,885 INFO L226 Difference]: Without dead ends: 18 [2021-02-19 17:43:17,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:43:17,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-02-19 17:43:17,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-02-19 17:43:17,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-02-19 17:43:17,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-02-19 17:43:17,931 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2021-02-19 17:43:17,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:43:17,931 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-02-19 17:43:17,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 17:43:17,932 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-02-19 17:43:17,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-19 17:43:17,933 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:43:17,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:43:17,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:43:17,934 INFO L428 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:43:17,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:43:17,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1712350896, now seen corresponding path program 1 times [2021-02-19 17:43:17,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:43:17,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652473915] [2021-02-19 17:43:17,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:43:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:43:17,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:17,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:43:17,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:17,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:43:17,985 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:17,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:43:17,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:17,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:43:17,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:17,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:43:18,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:43:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:43:18,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:18,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:43:18,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:43:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:43:18,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:18,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:43:18,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:43:18,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:43:18,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:43:18,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652473915] [2021-02-19 17:43:18,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:43:18,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-19 17:43:18,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212685315] [2021-02-19 17:43:18,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-19 17:43:18,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:43:18,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-19 17:43:18,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-02-19 17:43:18,119 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 9 states. [2021-02-19 17:43:18,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:43:18,348 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-02-19 17:43:18,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-19 17:43:18,348 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2021-02-19 17:43:18,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:43:18,349 INFO L225 Difference]: With dead ends: 18 [2021-02-19 17:43:18,349 INFO L226 Difference]: Without dead ends: 0 [2021-02-19 17:43:18,351 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 [2021-02-19 17:43:18,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-19 17:43:18,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-19 17:43:18,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-19 17:43:18,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-19 17:43:18,352 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-02-19 17:43:18,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:43:18,352 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-19 17:43:18,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-19 17:43:18,352 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-19 17:43:18,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-19 17:43:18,353 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:43:18,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-19 17:43:18,498 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-19 17:43:18,498 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-19 17:43:18,498 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-19 17:43:18,499 INFO L185 CegarLoopUtils]: At program point mutex_unlockENTRY(lines 27 31) 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))) [2021-02-19 17:43:18,499 INFO L189 CegarLoopUtils]: For program point L29(line 29) no Hoare annotation was computed. [2021-02-19 17:43:18,499 INFO L185 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2021-02-19 17:43:18,499 INFO L189 CegarLoopUtils]: For program point mutex_unlockEXIT(lines 27 31) no Hoare annotation was computed. [2021-02-19 17:43:18,499 INFO L189 CegarLoopUtils]: For program point L29-3(line 29) no Hoare annotation was computed. [2021-02-19 17:43:18,500 INFO L189 CegarLoopUtils]: For program point mutex_unlockFINAL(lines 27 31) no Hoare annotation was computed. [2021-02-19 17:43:18,500 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-19 17:43:18,500 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|)) [2021-02-19 17:43:18,500 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-19 17:43:18,500 INFO L189 CegarLoopUtils]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-02-19 17:43:18,501 INFO L189 CegarLoopUtils]: For program point errEXIT(lines 14 15) no Hoare annotation was computed. [2021-02-19 17:43:18,501 INFO L192 CegarLoopUtils]: At program point errENTRY(lines 14 15) the Hoare annotation is: true [2021-02-19 17:43:18,501 INFO L189 CegarLoopUtils]: For program point errFINAL(lines 14 15) no Hoare annotation was computed. [2021-02-19 17:43:18,501 INFO L185 CegarLoopUtils]: At program point mutex_lockENTRY(lines 21 25) 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)|)) [2021-02-19 17:43:18,501 INFO L189 CegarLoopUtils]: For program point mutex_lockFINAL(lines 21 25) no Hoare annotation was computed. [2021-02-19 17:43:18,501 INFO L189 CegarLoopUtils]: For program point L23(line 23) no Hoare annotation was computed. [2021-02-19 17:43:18,502 INFO L185 CegarLoopUtils]: At program point L23-1(line 23) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2021-02-19 17:43:18,502 INFO L189 CegarLoopUtils]: For program point mutex_lockEXIT(lines 21 25) no Hoare annotation was computed. [2021-02-19 17:43:18,502 INFO L189 CegarLoopUtils]: For program point L23-3(line 23) no Hoare annotation was computed. [2021-02-19 17:43:18,502 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-19 17:43:18,502 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-19 17:43:18,502 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-19 17:43:18,502 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-19 17:43:18,503 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 33 45) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2021-02-19 17:43:18,503 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 33 45) no Hoare annotation was computed. [2021-02-19 17:43:18,503 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 33 45) no Hoare annotation was computed. [2021-02-19 17:43:18,503 INFO L189 CegarLoopUtils]: For program point L40(line 40) no Hoare annotation was computed. [2021-02-19 17:43:18,503 INFO L185 CegarLoopUtils]: At program point L38(line 38) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 0) [2021-02-19 17:43:18,504 INFO L185 CegarLoopUtils]: At program point L38-1(line 38) the Hoare annotation is: (= (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|) 1) [2021-02-19 17:43:18,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:43:18 BoogieIcfgContainer [2021-02-19 17:43:18,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:43:18,512 INFO L168 Benchmark]: Toolchain (without parser) took 2413.87 ms. Allocated memory is still 160.4 MB. Free memory was 135.6 MB in the beginning and 76.1 MB in the end (delta: 59.5 MB). Peak memory consumption was 60.3 MB. Max. memory is 8.0 GB. [2021-02-19 17:43:18,512 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 160.4 MB. Free memory is still 133.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:43:18,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.46 ms. Allocated memory is still 160.4 MB. Free memory was 134.5 MB in the beginning and 125.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-19 17:43:18,514 INFO L168 Benchmark]: Boogie Preprocessor took 35.86 ms. Allocated memory is still 160.4 MB. Free memory was 125.1 MB in the beginning and 123.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-19 17:43:18,515 INFO L168 Benchmark]: RCFGBuilder took 400.95 ms. Allocated memory is still 160.4 MB. Free memory was 123.6 MB in the beginning and 143.3 MB in the end (delta: -19.7 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. [2021-02-19 17:43:18,516 INFO L168 Benchmark]: TraceAbstraction took 1618.33 ms. Allocated memory is still 160.4 MB. Free memory was 143.3 MB in the beginning and 76.1 MB in the end (delta: 67.2 MB). Peak memory consumption was 66.9 MB. Max. memory is 8.0 GB. [2021-02-19 17:43:18,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 160.4 MB. Free memory is still 133.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 336.46 ms. Allocated memory is still 160.4 MB. Free memory was 134.5 MB in the beginning and 125.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.86 ms. Allocated memory is still 160.4 MB. Free memory was 125.1 MB in the beginning and 123.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 400.95 ms. Allocated memory is still 160.4 MB. Free memory was 123.6 MB in the beginning and 143.3 MB in the end (delta: -19.7 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1618.33 ms. Allocated memory is still 160.4 MB. Free memory was 143.3 MB in the beginning and 76.1 MB in the end (delta: 67.2 MB). Peak memory consumption was 66.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: 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: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, 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, 0.0s 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...