./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 .............................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:54:49,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:54:49,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:54:49,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:54:49,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:54:49,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:54:49,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:54:49,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:54:49,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:54:49,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:54:49,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:54:49,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:54:49,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:54:49,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:54:49,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:54:49,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:54:49,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:54:49,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:54:49,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:54:49,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:54:49,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:54:49,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:54:49,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:54:49,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:54:49,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:54:49,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:54:49,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:54:49,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:54:49,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:54:49,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:54:49,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:54:49,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:54:49,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:54:49,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:54:49,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:54:49,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:54:49,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:54:49,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:54:49,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:54:49,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:54:49,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:54:49,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:54:49,408 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:54:49,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:54:49,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:54:49,411 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:54:49,411 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:54:49,412 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:54:49,412 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:54:49,412 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:54:49,412 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:54:49,413 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:54:49,414 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:54:49,415 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:54:49,415 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:54:49,415 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:54:49,416 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:54:49,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:54:49,417 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:54:49,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:54:49,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:54:49,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:54:49,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:54:49,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:54:49,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:54:49,419 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:54:49,419 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:54:49,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:54:49,420 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:54:49,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:54:49,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:54:49,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:54:49,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:54:49,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:54:49,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:54:49,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:54:49,425 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:54:49,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:54:49,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:54:49,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:54:49,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:54:49,426 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 [2021-10-20 05:54:49,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:54:49,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:54:49,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:54:49,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:54:49,891 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:54:49,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-10-20 05:54:49,996 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/data/e2a6bb013/5cd337fb6d0a416fb317a187ea658b44/FLAGe32f06a6d [2021-10-20 05:54:50,658 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:54:50,659 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-10-20 05:54:50,672 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/data/e2a6bb013/5cd337fb6d0a416fb317a187ea658b44/FLAGe32f06a6d [2021-10-20 05:54:50,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/data/e2a6bb013/5cd337fb6d0a416fb317a187ea658b44 [2021-10-20 05:54:50,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:54:50,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:54:50,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:54:50,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:54:50,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:54:50,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:50" (1/1) ... [2021-10-20 05:54:50,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be60884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:50, skipping insertion in model container [2021-10-20 05:54:50,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:50" (1/1) ... [2021-10-20 05:54:50,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:54:51,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:54:51,352 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1686) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$41(StandardFunctionHandler.java:360) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1978) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1607) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1584) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3218) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-20 05:54:51,364 INFO L168 Benchmark]: Toolchain (without parser) took 410.43 ms. Allocated memory was 100.7 MB in the beginning and 140.5 MB in the end (delta: 39.8 MB). Free memory was 66.4 MB in the beginning and 114.9 MB in the end (delta: -48.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:54:51,369 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 100.7 MB. Free memory is still 54.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:54:51,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.32 ms. Allocated memory was 100.7 MB in the beginning and 140.5 MB in the end (delta: 39.8 MB). Free memory was 66.4 MB in the beginning and 114.9 MB in the end (delta: -48.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:54:51,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 100.7 MB. Free memory is still 54.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 407.32 ms. Allocated memory was 100.7 MB in the beginning and 140.5 MB in the end (delta: 39.8 MB). Free memory was 66.4 MB in the beginning and 114.9 MB in the end (delta: -48.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:54:54,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:54:54,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:54:54,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:54:54,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:54:54,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:54:54,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:54:54,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:54:54,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:54:54,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:54:54,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:54:54,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:54:54,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:54:54,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:54:54,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:54:54,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:54:54,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:54:54,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:54:54,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:54:54,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:54:54,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:54:54,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:54:54,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:54:54,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:54:54,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:54:54,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:54:54,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:54:54,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:54:54,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:54:54,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:54:54,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:54:54,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:54:54,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:54:54,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:54:54,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:54:54,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:54:54,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:54:54,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:54:54,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:54:54,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:54:54,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:54:54,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:54:54,553 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:54:54,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:54:54,556 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:54:54,556 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:54:54,556 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:54:54,556 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:54:54,557 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:54:54,557 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:54:54,558 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:54:54,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:54:54,561 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:54:54,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:54:54,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:54:54,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:54:54,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:54:54,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:54:54,562 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:54:54,563 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:54:54,563 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:54:54,563 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:54:54,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:54:54,564 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:54:54,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:54:54,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:54:54,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:54:54,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:54:54,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:54:54,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:54:54,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:54:54,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:54:54,566 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:54:54,566 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:54:54,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:54:54,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:54:54,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:54:54,568 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 [2021-10-20 05:54:55,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:54:55,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:54:55,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:54:55,074 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:54:55,075 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:54:55,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-10-20 05:54:55,156 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/data/a19573414/7d9f3ee557c74704a830dd143d205827/FLAG39108c0a1 [2021-10-20 05:54:55,896 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:54:55,899 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2021-10-20 05:54:55,916 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/data/a19573414/7d9f3ee557c74704a830dd143d205827/FLAG39108c0a1 [2021-10-20 05:54:56,141 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/data/a19573414/7d9f3ee557c74704a830dd143d205827 [2021-10-20 05:54:56,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:54:56,147 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:54:56,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:54:56,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:54:56,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:54:56,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:56,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9dccd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56, skipping insertion in model container [2021-10-20 05:54:56,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:56,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:54:56,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:54:56,775 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/sv-benchmarks/c/float-newlib/double_req_bl_0876.c[14628,14641] [2021-10-20 05:54:56,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:54:56,796 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:54:56,947 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/sv-benchmarks/c/float-newlib/double_req_bl_0876.c[14628,14641] [2021-10-20 05:54:56,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:54:56,986 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:54:56,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56 WrapperNode [2021-10-20 05:54:56,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:54:56,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:54:56,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:54:56,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:54:56,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:57,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:57,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:54:57,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:54:57,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:54:57,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:54:57,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:57,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:57,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:57,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:57,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:57,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:57,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:57,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:54:57,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:54:57,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:54:57,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:54:57,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56" (1/1) ... [2021-10-20 05:54:57,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:54:57,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:54:57,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:54:57,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:54:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-20 05:54:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-20 05:54:57,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:54:57,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:54:57,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-20 05:54:57,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-20 05:54:57,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:54:57,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:54:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-20 05:54:57,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-20 05:55:54,525 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:55:54,525 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-10-20 05:55:54,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:55:54 BoogieIcfgContainer [2021-10-20 05:55:54,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:55:54,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:55:54,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:55:54,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:55:54,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:54:56" (1/3) ... [2021-10-20 05:55:54,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17275b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:55:54, skipping insertion in model container [2021-10-20 05:55:54,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:56" (2/3) ... [2021-10-20 05:55:54,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17275b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:55:54, skipping insertion in model container [2021-10-20 05:55:54,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:55:54" (3/3) ... [2021-10-20 05:55:54,541 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0876.c [2021-10-20 05:55:54,548 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:55:54,548 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:55:54,639 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:55:54,645 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:55:54,646 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-20 05:55:54,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 221 states have (on average 1.7194570135746607) internal successors, (380), 222 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:55:54,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-20 05:55:54,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:55:54,679 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:55:54,680 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:55:54,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:55:54,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1484062990, now seen corresponding path program 1 times [2021-10-20 05:55:54,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:55:54,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769821744] [2021-10-20 05:55:54,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:55:54,704 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:55:54,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:55:54,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:55:54,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:55:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:55:55,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-20 05:55:55,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:55:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:55:55,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:55:56,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:55:56,153 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:55:56,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769821744] [2021-10-20 05:55:56,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769821744] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:55:56,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:55:56,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 05:55:56,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228340361] [2021-10-20 05:55:56,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-20 05:55:56,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:55:56,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-20 05:55:56,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:55:56,184 INFO L87 Difference]: Start difference. First operand has 223 states, 221 states have (on average 1.7194570135746607) internal successors, (380), 222 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:55:56,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:55:56,239 INFO L93 Difference]: Finished difference Result 444 states and 758 transitions. [2021-10-20 05:55:56,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-20 05:55:56,241 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-20 05:55:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:55:56,256 INFO L225 Difference]: With dead ends: 444 [2021-10-20 05:55:56,257 INFO L226 Difference]: Without dead ends: 219 [2021-10-20 05:55:56,261 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:55:56,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-20 05:55:56,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-10-20 05:55:56,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.3669724770642202) internal successors, (298), 218 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:55:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 298 transitions. [2021-10-20 05:55:56,329 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 298 transitions. Word has length 15 [2021-10-20 05:55:56,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:55:56,330 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 298 transitions. [2021-10-20 05:55:56,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:55:56,331 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 298 transitions. [2021-10-20 05:55:56,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 05:55:56,332 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:55:56,332 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:55:56,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:55:56,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:55:56,550 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:55:56,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:55:56,552 INFO L82 PathProgramCache]: Analyzing trace with hash 441555186, now seen corresponding path program 1 times [2021-10-20 05:55:56,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:55:56,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91341218] [2021-10-20 05:55:56,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:55:56,553 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:55:56,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:55:56,559 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:55:56,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:55:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:55:56,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-20 05:55:56,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:55:59,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:55:59,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:56:05,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:56:05,809 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:56:05,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91341218] [2021-10-20 05:56:05,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91341218] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:56:05,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:56:05,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-20 05:56:05,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404036459] [2021-10-20 05:56:05,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-20 05:56:05,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:56:05,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-20 05:56:05,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-20 05:56:05,814 INFO L87 Difference]: Start difference. First operand 219 states and 298 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:56:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:56:17,990 INFO L93 Difference]: Finished difference Result 354 states and 474 transitions. [2021-10-20 05:56:18,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-20 05:56:18,126 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-20 05:56:18,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:56:18,128 INFO L225 Difference]: With dead ends: 354 [2021-10-20 05:56:18,129 INFO L226 Difference]: Without dead ends: 154 [2021-10-20 05:56:18,131 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5850.2ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-20 05:56:18,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-10-20 05:56:18,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 145. [2021-10-20 05:56:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 144 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:56:18,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 179 transitions. [2021-10-20 05:56:18,149 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 179 transitions. Word has length 19 [2021-10-20 05:56:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:56:18,150 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 179 transitions. [2021-10-20 05:56:18,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:56:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 179 transitions. [2021-10-20 05:56:18,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-20 05:56:18,152 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:56:18,152 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:56:18,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:56:18,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:56:18,367 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:56:18,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:56:18,368 INFO L82 PathProgramCache]: Analyzing trace with hash 654842519, now seen corresponding path program 1 times [2021-10-20 05:56:18,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:56:18,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813578112] [2021-10-20 05:56:18,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:56:18,370 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:56:18,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:56:18,372 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:56:18,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:56:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:56:18,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-20 05:56:18,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:56:19,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-10-20 05:56:24,877 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:56:24,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 43 [2021-10-20 05:56:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:56:48,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:57:01,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2021-10-20 05:57:01,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2021-10-20 05:57:11,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:57:11,065 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:57:11,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813578112] [2021-10-20 05:57:11,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813578112] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:57:11,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:57:11,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-10-20 05:57:11,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330212424] [2021-10-20 05:57:11,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-20 05:57:11,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:57:11,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-20 05:57:11,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=258, Unknown=5, NotChecked=0, Total=306 [2021-10-20 05:57:11,070 INFO L87 Difference]: Start difference. First operand 145 states and 179 transitions. Second operand has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:57:41,410 WARN L207 SmtUtils]: Spent 5.21 s on a formula simplification that was a NOOP. DAG size: 72 [2021-10-20 05:57:59,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:57:59,953 INFO L93 Difference]: Finished difference Result 164 states and 198 transitions. [2021-10-20 05:57:59,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-20 05:57:59,955 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-20 05:57:59,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:57:59,957 INFO L225 Difference]: With dead ends: 164 [2021-10-20 05:57:59,957 INFO L226 Difference]: Without dead ends: 63 [2021-10-20 05:57:59,959 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 67593.7ms TimeCoverageRelationStatistics Valid=127, Invalid=518, Unknown=5, NotChecked=0, Total=650 [2021-10-20 05:57:59,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-20 05:57:59,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 54. [2021-10-20 05:57:59,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.169811320754717) internal successors, (62), 53 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:57:59,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2021-10-20 05:57:59,968 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 21 [2021-10-20 05:57:59,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:57:59,969 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2021-10-20 05:57:59,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0555555555555554) internal successors, (37), 18 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:57:59,970 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2021-10-20 05:57:59,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-20 05:57:59,971 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:57:59,971 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:57:59,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-20 05:58:00,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:58:00,188 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:58:00,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:58:00,189 INFO L82 PathProgramCache]: Analyzing trace with hash 656689561, now seen corresponding path program 1 times [2021-10-20 05:58:00,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:58:00,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1596376287] [2021-10-20 05:58:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:58:00,191 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:58:00,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:58:00,194 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:58:00,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 05:58:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:58:00,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-20 05:58:00,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:58:02,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-10-20 05:58:08,074 INFO L354 Elim1Store]: treesize reduction 26, result has 46.9 percent of original size [2021-10-20 05:58:08,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 92 [2021-10-20 05:58:12,152 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:58:12,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 104 [2021-10-20 05:58:12,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-10-20 05:58:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:58:19,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:58:49,469 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:58:49,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 150 treesize of output 135 [2021-10-20 05:58:50,530 INFO L354 Elim1Store]: treesize reduction 18, result has 65.4 percent of original size [2021-10-20 05:58:50,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 153 [2021-10-20 05:58:50,584 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:58:50,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1596376287] [2021-10-20 05:58:50,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-10-20 05:58:50,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [51164490] [2021-10-20 05:58:50,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:58:50,585 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-20 05:58:50,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/cvc4 [2021-10-20 05:58:50,586 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-20 05:58:50,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-20 05:58:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:58:57,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-20 05:58:57,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@795a73d2 [2021-10-20 05:58:57,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934681265] [2021-10-20 05:58:57,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:58:57,298 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:58:57,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:58:57,303 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:58:57,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-20 05:58:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:58:57,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-20 05:58:57,541 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@795a73d2 [2021-10-20 05:58:57,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:58:57,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-20 05:58:57,542 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-20 05:58:57,542 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-20 05:58:57,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:58:57,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-20 05:58:57,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2021-10-20 05:58:57,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:58:58,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:58:58,160 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:58:58,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:58:58 BoogieIcfgContainer [2021-10-20 05:58:58,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:58:58,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:58:58,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:58:58,180 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:58:58,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:55:54" (3/4) ... [2021-10-20 05:58:58,184 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-20 05:58:58,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:58:58,186 INFO L168 Benchmark]: Toolchain (without parser) took 242037.83 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 58.0 MB in the beginning and 67.2 MB in the end (delta: -9.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:58:58,186 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 75.5 MB. Free memory is still 55.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:58:58,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 836.32 ms. Allocated memory is still 75.5 MB. Free memory was 57.8 MB in the beginning and 43.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:58:58,188 INFO L168 Benchmark]: Boogie Procedure Inliner took 184.17 ms. Allocated memory is still 75.5 MB. Free memory was 43.7 MB in the beginning and 38.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:58:58,189 INFO L168 Benchmark]: Boogie Preprocessor took 219.27 ms. Allocated memory is still 75.5 MB. Free memory was 38.6 MB in the beginning and 54.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:58:58,189 INFO L168 Benchmark]: RCFGBuilder took 57135.89 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 54.4 MB in the beginning and 48.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. [2021-10-20 05:58:58,190 INFO L168 Benchmark]: TraceAbstraction took 183646.95 ms. Allocated memory is still 100.7 MB. Free memory was 48.1 MB in the beginning and 67.2 MB in the end (delta: -19.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:58:58,191 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 100.7 MB. Free memory was 67.2 MB in the beginning and 67.2 MB in the end (delta: 2.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:58:58,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 75.5 MB. Free memory is still 55.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 836.32 ms. Allocated memory is still 75.5 MB. Free memory was 57.8 MB in the beginning and 43.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 184.17 ms. Allocated memory is still 75.5 MB. Free memory was 43.7 MB in the beginning and 38.6 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 219.27 ms. Allocated memory is still 75.5 MB. Free memory was 38.6 MB in the beginning and 54.4 MB in the end (delta: -15.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 57135.89 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 54.4 MB in the beginning and 48.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 183646.95 ms. Allocated memory is still 100.7 MB. Free memory was 48.1 MB in the beginning and 67.2 MB in the end (delta: -19.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.10 ms. Allocated memory is still 100.7 MB. Free memory was 67.2 MB in the beginning and 67.2 MB in the end (delta: 2.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 608]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L40-L42] static const double two54_scalbn = 1.80143985094819840000e+16, twom54_scalbn = 5.55111512312578270212e-17, huge_scalbn = 1.0e+300, tiny_scalbn = 1.0e-300; [L95] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L222-L261] static const double bp_pow[] = { 1.0, 1.5, }, dp_h_pow[] = { 0.0, 5.84962487220764160156e-01, }, dp_l_pow[] = { 0.0, 1.35003920212974897128e-08, }, zero_pow = 0.0, one_pow = 1.0, two_pow = 2.0, two53_pow = 9007199254740992.0, huge_pow = 1.0e300, tiny_pow = 1.0e-300, L1_pow = 5.99999999999994648725e-01, L2_pow = 4.28571428578550184252e-01, L3_pow = 3.33333329818377432918e-01, L4_pow = 2.72728123808534006489e-01, L5_pow = 2.30660745775561754067e-01, L6_pow = 2.06975017800338417784e-01, P1_pow = 1.66666666666666019037e-01, P2_pow = -2.77777777770155933842e-03, P3_pow = 6.61375632143793436117e-05, P4_pow = -1.65339022054652515390e-06, P5_pow = 4.13813679705723846039e-08, lg2_pow = 6.93147180559945286227e-01, lg2_h_pow = 6.93147182464599609375e-01, lg2_l_pow = -1.90465429995776804525e-09, ovt_pow = 8.0085662595372944372e-0017, cp_pow = 9.61796693925975554329e-01, cp_h_pow = 9.61796700954437255859e-01, cp_l_pow = -7.02846165095275826516e-09, ivln2_pow = 1.44269504088896338700e+00, ivln2_h_pow = 1.44269502162933349609e+00, ivln2_l_pow = 1.92596299112661746887e-08; [L599] double x = __VERIFIER_nondet_double(); [L600] double y = 1.0 / 0.0; [L207] __uint32_t high; [L209] ieee_double_shape_type gh_u; [L210] gh_u.value = (x) [L211] EXPR gh_u.parts.msw [L211] (high) = gh_u.parts.msw [L214] ieee_double_shape_type sh_u; [L215] sh_u.value = (x) [L216] sh_u.parts.msw = (high & 0x7fffffff) [L217] EXPR sh_u.value [L217] (x) = sh_u.value [L219] return x; [L602] COND TRUE fabs_double(x) < 1.0 [L264] double z, ax, z_h, z_l, p_h, p_l; [L265] double y1, t1, t2, r, s, t, u, v, w; [L266] __int32_t i, j, k, yisint, n; [L267] __int32_t hx, hy, ix, iy; [L268] __uint32_t lx, ly; [L271] ieee_double_shape_type ew_u; [L272] ew_u.value = (x) [L273] EXPR ew_u.parts.msw [L273] (hx) = ew_u.parts.msw [L274] EXPR ew_u.parts.lsw [L274] (lx) = ew_u.parts.lsw [L277] ieee_double_shape_type ew_u; [L278] ew_u.value = (y) [L279] EXPR ew_u.parts.msw [L279] (hy) = ew_u.parts.msw [L280] EXPR ew_u.parts.lsw [L280] (ly) = ew_u.parts.lsw [L282] ix = hx & 0x7fffffff [L283] iy = hy & 0x7fffffff [L285] COND FALSE !((iy | ly) == 0) [L288-L289] COND TRUE ix > 0x7ff00000 || ((ix == 0x7ff00000) && (lx != 0)) || iy > 0x7ff00000 || ((iy == 0x7ff00000) && (ly != 0)) [L290] COND FALSE !(((ix - 0x3ff00000) | lx) == 0) [L293] return __builtin_nan(""); [L604] double res = __ieee754_pow(x, y); [L607] EXPR res == 0.0 && __signbit_double(res) == 0 [L607] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L608] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 223 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 183522.6ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 17.1ms, AutomataDifference: 61306.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 502 SDtfs, 765 SDslu, 1040 SDs, 0 SdLazy, 252 SolverSat, 32 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 32705.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 73444.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 76.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 115.9ms SsaConstructionTime, 914.3ms SatisfiabilityAnalysisTime, 62086.7ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 104 ConstructedInterpolants, 55 QuantifiedInterpolants, 1484 SizeOfPredicates, 26 NumberOfNonLiveVariables, 399 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-20 05:58:58,423 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-20 05:58:58,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db5a7693-eb5c-4dc6-90aa-95fc529e258b/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...