./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b24fe5aae04e52fa3254bedb47b3233a00d35d78 ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:25:41,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:25:41,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:25:41,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:25:41,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:25:41,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:25:41,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:25:41,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:25:41,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:25:41,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:25:41,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:25:41,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:25:41,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:25:41,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:25:41,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:25:41,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:25:41,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:25:41,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:25:41,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:25:41,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:25:41,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:25:41,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:25:41,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:25:41,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:25:41,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:25:41,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:25:41,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:25:41,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:25:41,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:25:41,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:25:41,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:25:41,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:25:41,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:25:41,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:25:41,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:25:41,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:25:41,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:25:41,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:25:41,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:25:41,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:25:41,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:25:41,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:25:41,258 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:25:41,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:25:41,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:25:41,259 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:25:41,259 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:25:41,259 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:25:41,259 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:25:41,260 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:25:41,260 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:25:41,260 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:25:41,260 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:25:41,260 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:25:41,261 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:25:41,261 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:25:41,261 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:25:41,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:25:41,262 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:25:41,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:25:41,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:25:41,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:25:41,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:25:41,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:25:41,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:25:41,263 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:25:41,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:25:41,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:25:41,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:25:41,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:25:41,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:25:41,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:25:41,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:25:41,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:25:41,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:25:41,265 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:25:41,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:25:41,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:25:41,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:25:41,266 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b24fe5aae04e52fa3254bedb47b3233a00d35d78 [2019-11-26 02:25:41,431 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:25:41,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:25:41,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:25:41,444 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:25:41,445 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:25:41,447 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2019-11-26 02:25:41,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/data/00d8fb68b/bdd62a74dc5c4f0190a56c8a2a3d5220/FLAGa101c4548 [2019-11-26 02:25:41,917 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:25:41,918 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2019-11-26 02:25:41,933 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/data/00d8fb68b/bdd62a74dc5c4f0190a56c8a2a3d5220/FLAGa101c4548 [2019-11-26 02:25:42,229 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/data/00d8fb68b/bdd62a74dc5c4f0190a56c8a2a3d5220 [2019-11-26 02:25:42,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:25:42,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:25:42,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:25:42,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:25:42,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:25:42,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:25:42" (1/1) ... [2019-11-26 02:25:42,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b8177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42, skipping insertion in model container [2019-11-26 02:25:42,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:25:42" (1/1) ... [2019-11-26 02:25:42,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:25:42,297 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:25:42,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:25:42,670 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:25:42,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:25:42,783 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:25:42,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42 WrapperNode [2019-11-26 02:25:42,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:25:42,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:25:42,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:25:42,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:25:42,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42" (1/1) ... [2019-11-26 02:25:42,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42" (1/1) ... [2019-11-26 02:25:42,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:25:42,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:25:42,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:25:42,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:25:42,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42" (1/1) ... [2019-11-26 02:25:42,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42" (1/1) ... [2019-11-26 02:25:42,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42" (1/1) ... [2019-11-26 02:25:42,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42" (1/1) ... [2019-11-26 02:25:42,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42" (1/1) ... [2019-11-26 02:25:42,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42" (1/1) ... [2019-11-26 02:25:42,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42" (1/1) ... [2019-11-26 02:25:42,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:25:42,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:25:42,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:25:42,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:25:42,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/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 [2019-11-26 02:25:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:25:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-26 02:25:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:25:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-26 02:25:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:25:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-26 02:25:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:25:42,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:25:44,392 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:25:44,392 INFO L284 CfgBuilder]: Removed 74 assume(true) statements. [2019-11-26 02:25:44,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:44 BoogieIcfgContainer [2019-11-26 02:25:44,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:25:44,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:25:44,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:25:44,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:25:44,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:25:42" (1/3) ... [2019-11-26 02:25:44,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54da3b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:25:44, skipping insertion in model container [2019-11-26 02:25:44,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:25:42" (2/3) ... [2019-11-26 02:25:44,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54da3b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:25:44, skipping insertion in model container [2019-11-26 02:25:44,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:44" (3/3) ... [2019-11-26 02:25:44,405 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2019-11-26 02:25:44,413 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:25:44,421 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-26 02:25:44,430 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-26 02:25:44,453 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:25:44,453 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:25:44,453 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:25:44,453 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:25:44,453 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:25:44,454 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:25:44,454 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:25:44,454 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:25:44,469 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-26 02:25:44,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:25:44,477 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:25:44,477 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-26 02:25:44,478 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:25:44,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:25:44,483 INFO L82 PathProgramCache]: Analyzing trace with hash 292248813, now seen corresponding path program 1 times [2019-11-26 02:25:44,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:25:44,492 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525656936] [2019-11-26 02:25:44,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:25:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:25:44,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:25:44,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525656936] [2019-11-26 02:25:44,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:25:44,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:25:44,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227771845] [2019-11-26 02:25:44,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:25:44,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:25:44,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:25:44,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:25:44,719 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2019-11-26 02:25:44,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:25:44,915 INFO L93 Difference]: Finished difference Result 104 states and 143 transitions. [2019-11-26 02:25:44,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:25:44,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-26 02:25:44,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:25:44,926 INFO L225 Difference]: With dead ends: 104 [2019-11-26 02:25:44,927 INFO L226 Difference]: Without dead ends: 63 [2019-11-26 02:25:44,930 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:25:44,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-26 02:25:44,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 44. [2019-11-26 02:25:44,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-26 02:25:44,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2019-11-26 02:25:44,968 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 5 [2019-11-26 02:25:44,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:25:44,968 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2019-11-26 02:25:44,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:25:44,969 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2019-11-26 02:25:44,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-26 02:25:44,969 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:25:44,969 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-26 02:25:44,970 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:25:44,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:25:44,970 INFO L82 PathProgramCache]: Analyzing trace with hash 214586024, now seen corresponding path program 1 times [2019-11-26 02:25:44,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:25:44,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353382166] [2019-11-26 02:25:44,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:25:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:25:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:25:45,076 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353382166] [2019-11-26 02:25:45,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:25:45,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:25:45,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858888962] [2019-11-26 02:25:45,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:25:45,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:25:45,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:25:45,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:25:45,079 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand 3 states. [2019-11-26 02:25:45,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:25:45,184 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2019-11-26 02:25:45,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:25:45,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-26 02:25:45,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:25:45,187 INFO L225 Difference]: With dead ends: 100 [2019-11-26 02:25:45,188 INFO L226 Difference]: Without dead ends: 57 [2019-11-26 02:25:45,189 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:25:45,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-11-26 02:25:45,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 39. [2019-11-26 02:25:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-26 02:25:45,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2019-11-26 02:25:45,195 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 6 [2019-11-26 02:25:45,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:25:45,195 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2019-11-26 02:25:45,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:25:45,195 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2019-11-26 02:25:45,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:25:45,196 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:25:45,196 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:25:45,196 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:25:45,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:25:45,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1247007781, now seen corresponding path program 1 times [2019-11-26 02:25:45,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:25:45,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889779958] [2019-11-26 02:25:45,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:25:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:25:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:25:45,448 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:25:45,448 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:25:45,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:25:45 BoogieIcfgContainer [2019-11-26 02:25:45,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:25:45,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:25:45,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:25:45,496 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:25:45,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:25:44" (3/4) ... [2019-11-26 02:25:45,499 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:25:45,551 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6516ea51-0822-4d50-8076-9ae1d5679425/bin/utaipan/witness.graphml [2019-11-26 02:25:45,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:25:45,553 INFO L168 Benchmark]: Toolchain (without parser) took 3320.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 939.4 MB in the beginning and 940.2 MB in the end (delta: -782.5 kB). Peak memory consumption was 173.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:45,553 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:25:45,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 939.4 MB in the beginning and 1.2 GB in the end (delta: -212.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:45,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:45,555 INFO L168 Benchmark]: Boogie Preprocessor took 50.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:25:45,555 INFO L168 Benchmark]: RCFGBuilder took 1495.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 136.3 MB). Peak memory consumption was 136.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:45,556 INFO L168 Benchmark]: TraceAbstraction took 1101.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 940.2 MB in the end (delta: 69.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:25:45,556 INFO L168 Benchmark]: Witness Printer took 55.52 ms. Allocated memory is still 1.2 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:25:45,558 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 551.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 939.4 MB in the beginning and 1.2 GB in the end (delta: -212.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1495.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 136.3 MB). Peak memory consumption was 136.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1101.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 940.2 MB in the end (delta: 69.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. * Witness Printer took 55.52 ms. Allocated memory is still 1.2 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 655]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L651] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; [L562] void *ptr = malloc(size); [L564] return ptr; [L668] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L562] void *ptr = malloc(size); [L564] return ptr; [L669] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={2:0}] [L641] COND FALSE !(&m->list != (s)) [L646] return 0; VAL [mutexes={2:0}] [L655] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={2:0}] [L641] COND FALSE !(&m->list != (s)) [L646] return 0; VAL [mutexes={2:0}] [L622] COND TRUE !ldv_is_in_set(new, s) [L623] struct ldv_list_element *le; [L562] void *ptr = malloc(size); [L564] return ptr; [L624] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L625] le->e = new [L594] head->next [L582] next->prev = new [L583] new->next = next [L584] new->prev = prev [L585] prev->next = new [L640] struct ldv_list_element *m; [L641] EXPR (s)->next [L641] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L641] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={2:0}] [L641] COND TRUE &m->list != (s) [L642] EXPR m->e VAL [mutexes={2:0}] [L642] COND TRUE m->e == e [L643] return 1; VAL [mutexes={2:0}] [L655] COND TRUE ldv_is_in_set(m, &mutexes) [L655] __VERIFIER_error() VAL [mutexes={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 5 error locations. Result: UNSAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 39 SDslu, 101 SDs, 0 SdLazy, 51 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=1, 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, 37 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 97 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...