./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe021_tso.opt.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_dbbd5643-216c-46ab-b771-9d42614f666d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe021_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/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 691ed8575a91b9ee823b4f058564c132f43bde1d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:13:22,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:13:22,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:13:22,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:13:22,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:13:22,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:13:22,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:13:22,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:13:22,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:13:22,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:13:22,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:13:22,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:13:22,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:13:22,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:13:22,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:13:22,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:13:22,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:13:22,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:13:22,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:13:22,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:13:22,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:13:22,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:13:22,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:13:22,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:13:22,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:13:22,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:13:22,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:13:22,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:13:22,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:13:22,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:13:22,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:13:22,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:13:22,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:13:22,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:13:22,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:13:22,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:13:22,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:13:22,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:13:22,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:13:22,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:13:22,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:13:22,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:13:23,018 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:13:23,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:13:23,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:13:23,029 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:13:23,029 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:13:23,029 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:13:23,029 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:13:23,030 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:13:23,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:13:23,030 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:13:23,030 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:13:23,030 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:13:23,031 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:13:23,032 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:13:23,032 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:13:23,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:13:23,033 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:13:23,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:13:23,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:13:23,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:13:23,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:13:23,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:13:23,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:13:23,034 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:13:23,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:13:23,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:13:23,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:13:23,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:13:23,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:13:23,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:13:23,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:13:23,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:13:23,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:13:23,037 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:13:23,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:13:23,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:13:23,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:13:23,037 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_dbbd5643-216c-46ab-b771-9d42614f666d/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 -> 691ed8575a91b9ee823b4f058564c132f43bde1d [2019-11-26 02:13:23,171 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:13:23,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:13:23,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:13:23,186 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:13:23,186 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:13:23,187 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe021_tso.opt.i [2019-11-26 02:13:23,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/bin/utaipan/data/7b97f5f11/4df9d44d45074e8d97aa9b7dcd3aefc5/FLAG1464b364f [2019-11-26 02:13:23,683 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:13:23,683 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/sv-benchmarks/c/pthread-wmm/safe021_tso.opt.i [2019-11-26 02:13:23,700 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/bin/utaipan/data/7b97f5f11/4df9d44d45074e8d97aa9b7dcd3aefc5/FLAG1464b364f [2019-11-26 02:13:23,711 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/bin/utaipan/data/7b97f5f11/4df9d44d45074e8d97aa9b7dcd3aefc5 [2019-11-26 02:13:23,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:13:23,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:13:23,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:13:23,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:13:23,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:13:23,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:13:23" (1/1) ... [2019-11-26 02:13:23,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568b4aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:23, skipping insertion in model container [2019-11-26 02:13:23,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:13:23" (1/1) ... [2019-11-26 02:13:23,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:13:23,781 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:13:24,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:13:24,147 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:13:24,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:13:24,276 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:13:24,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24 WrapperNode [2019-11-26 02:13:24,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:13:24,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:13:24,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:13:24,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:13:24,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24" (1/1) ... [2019-11-26 02:13:24,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24" (1/1) ... [2019-11-26 02:13:24,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:13:24,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:13:24,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:13:24,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:13:24,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24" (1/1) ... [2019-11-26 02:13:24,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24" (1/1) ... [2019-11-26 02:13:24,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24" (1/1) ... [2019-11-26 02:13:24,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24" (1/1) ... [2019-11-26 02:13:24,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24" (1/1) ... [2019-11-26 02:13:24,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24" (1/1) ... [2019-11-26 02:13:24,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24" (1/1) ... [2019-11-26 02:13:24,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:13:24,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:13:24,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:13:24,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:13:24,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/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 02:13:24,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:13:24,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:13:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:13:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:13:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:13:24,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:13:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:13:24,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:13:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:13:24,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:13:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:13:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:13:24,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:13:24,398 WARN L202 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:13:24,685 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:13:24,686 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:13:24,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:13:24 BoogieIcfgContainer [2019-11-26 02:13:24,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:13:24,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:13:24,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:13:24,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:13:24,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:13:23" (1/3) ... [2019-11-26 02:13:24,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ac7665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:13:24, skipping insertion in model container [2019-11-26 02:13:24,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:13:24" (2/3) ... [2019-11-26 02:13:24,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ac7665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:13:24, skipping insertion in model container [2019-11-26 02:13:24,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:13:24" (3/3) ... [2019-11-26 02:13:24,694 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i [2019-11-26 02:13:24,751 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,751 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,752 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,752 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,752 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,752 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,753 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,753 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,753 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,753 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,754 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,754 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,754 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,754 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,754 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,755 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,755 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,755 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,755 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,756 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,756 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,756 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,756 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,756 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,757 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,757 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,757 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,757 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,757 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,758 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,758 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,758 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,758 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,758 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,759 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,759 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,759 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,759 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,759 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,760 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,760 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,760 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,760 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,761 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,761 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,761 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,761 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,761 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,762 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,762 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,762 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,762 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,762 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,762 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:13:24,812 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:13:24,812 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:13:24,818 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:13:24,828 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:13:24,844 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:13:24,844 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:13:24,844 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:13:24,844 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:13:24,845 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:13:24,845 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:13:24,845 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:13:24,845 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:13:24,855 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-26 02:13:24,983 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-11-26 02:13:24,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-11-26 02:13:24,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:13:24,999 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:13:25,000 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:13:25,000 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:13:25,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:13:25,006 INFO L82 PathProgramCache]: Analyzing trace with hash 644822426, now seen corresponding path program 1 times [2019-11-26 02:13:25,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:13:25,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5818413] [2019-11-26 02:13:25,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:13:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:13:25,305 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 02:13:25,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5818413] [2019-11-26 02:13:25,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:13:25,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:13:25,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829739038] [2019-11-26 02:13:25,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:13:25,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:13:25,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:13:25,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:13:25,326 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-11-26 02:13:25,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:13:25,453 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-11-26 02:13:25,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:13:25,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-26 02:13:25,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:13:25,489 INFO L225 Difference]: With dead ends: 1295 [2019-11-26 02:13:25,489 INFO L226 Difference]: Without dead ends: 601 [2019-11-26 02:13:25,491 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 02:13:25,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-11-26 02:13:25,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-11-26 02:13:25,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-11-26 02:13:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-11-26 02:13:25,614 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-11-26 02:13:25,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:13:25,614 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-11-26 02:13:25,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:13:25,614 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-11-26 02:13:25,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:13:25,618 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:13:25,618 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:13:25,618 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:13:25,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:13:25,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1114092486, now seen corresponding path program 1 times [2019-11-26 02:13:25,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:13:25,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262208770] [2019-11-26 02:13:25,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:13:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:13:25,751 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 02:13:25,751 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262208770] [2019-11-26 02:13:25,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:13:25,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:13:25,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879154557] [2019-11-26 02:13:25,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:13:25,753 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:13:25,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:13:25,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:13:25,754 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-11-26 02:13:25,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:13:25,823 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-11-26 02:13:25,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:13:25,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-26 02:13:25,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:13:25,828 INFO L225 Difference]: With dead ends: 601 [2019-11-26 02:13:25,828 INFO L226 Difference]: Without dead ends: 538 [2019-11-26 02:13:25,829 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:13:25,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-26 02:13:25,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-26 02:13:25,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-26 02:13:25,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-11-26 02:13:25,850 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-11-26 02:13:25,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:13:25,850 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-11-26 02:13:25,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:13:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-11-26 02:13:25,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:13:25,852 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:13:25,853 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:13:25,853 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:13:25,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:13:25,853 INFO L82 PathProgramCache]: Analyzing trace with hash 685985648, now seen corresponding path program 1 times [2019-11-26 02:13:25,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:13:25,854 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017303335] [2019-11-26 02:13:25,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:13:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:13:26,041 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 02:13:26,041 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017303335] [2019-11-26 02:13:26,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:13:26,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:13:26,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250048370] [2019-11-26 02:13:26,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:13:26,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:13:26,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:13:26,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:13:26,043 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-11-26 02:13:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:13:26,148 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-11-26 02:13:26,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:13:26,149 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-26 02:13:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:13:26,151 INFO L225 Difference]: With dead ends: 403 [2019-11-26 02:13:26,152 INFO L226 Difference]: Without dead ends: 349 [2019-11-26 02:13:26,152 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:13:26,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-11-26 02:13:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-11-26 02:13:26,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-26 02:13:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-11-26 02:13:26,165 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-11-26 02:13:26,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:13:26,166 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-11-26 02:13:26,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:13:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-11-26 02:13:26,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:13:26,167 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:13:26,168 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:13:26,168 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:13:26,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:13:26,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2035368650, now seen corresponding path program 1 times [2019-11-26 02:13:26,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:13:26,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808488716] [2019-11-26 02:13:26,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:13:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:13:26,303 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 02:13:26,304 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808488716] [2019-11-26 02:13:26,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:13:26,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:13:26,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247573291] [2019-11-26 02:13:26,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:13:26,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:13:26,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:13:26,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:13:26,305 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-11-26 02:13:26,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:13:26,489 INFO L93 Difference]: Finished difference Result 556 states and 1479 transitions. [2019-11-26 02:13:26,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:13:26,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-26 02:13:26,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:13:26,492 INFO L225 Difference]: With dead ends: 556 [2019-11-26 02:13:26,492 INFO L226 Difference]: Without dead ends: 280 [2019-11-26 02:13:26,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:13:26,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-11-26 02:13:26,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2019-11-26 02:13:26,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-11-26 02:13:26,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-11-26 02:13:26,505 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-11-26 02:13:26,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:13:26,506 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-11-26 02:13:26,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:13:26,507 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-11-26 02:13:26,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:13:26,512 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:13:26,513 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:13:26,513 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:13:26,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:13:26,513 INFO L82 PathProgramCache]: Analyzing trace with hash 46374848, now seen corresponding path program 2 times [2019-11-26 02:13:26,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:13:26,514 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809656212] [2019-11-26 02:13:26,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:13:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:13:26,713 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 02:13:26,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809656212] [2019-11-26 02:13:26,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:13:26,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:13:26,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474280765] [2019-11-26 02:13:26,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:13:26,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:13:26,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:13:26,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:13:26,716 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 8 states. [2019-11-26 02:13:26,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:13:26,842 INFO L93 Difference]: Finished difference Result 226 states and 564 transitions. [2019-11-26 02:13:26,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:13:26,842 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-26 02:13:26,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:13:26,842 INFO L225 Difference]: With dead ends: 226 [2019-11-26 02:13:26,842 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:13:26,843 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:13:26,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:13:26,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:13:26,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:13:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:13:26,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-26 02:13:26,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:13:26,844 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:13:26,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:13:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:13:26,844 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:13:26,846 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:13:26,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:13:26 BasicIcfg [2019-11-26 02:13:26,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:13:26,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:13:26,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:13:26,850 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:13:26,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:13:24" (3/4) ... [2019-11-26 02:13:26,854 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:13:26,862 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:13:26,862 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:13:26,862 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:13:26,878 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:13:26,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:13:26,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:13:26,916 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dbbd5643-216c-46ab-b771-9d42614f666d/bin/utaipan/witness.graphml [2019-11-26 02:13:26,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:13:26,918 INFO L168 Benchmark]: Toolchain (without parser) took 3203.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:13:26,918 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:13:26,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:13:26,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.70 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 02:13:26,920 INFO L168 Benchmark]: Boogie Preprocessor took 25.14 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 02:13:26,920 INFO L168 Benchmark]: RCFGBuilder took 343.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:13:26,920 INFO L168 Benchmark]: TraceAbstraction took 2160.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -47.9 MB). Peak memory consumption was 215.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:13:26,921 INFO L168 Benchmark]: Witness Printer took 66.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:13:26,923 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 562.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.70 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. * Boogie Preprocessor took 25.14 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 343.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2160.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -47.9 MB). Peak memory consumption was 215.3 MB. Max. memory is 11.5 GB. * Witness Printer took 66.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 90 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 240 SDtfs, 329 SDslu, 588 SDs, 0 SdLazy, 83 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 15369 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 correct! Received shutdown request...