./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i --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_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE --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 dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 ...................................................................................................................................................................... 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_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE --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 dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:57:58,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:57:58,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:57:58,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:57:58,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:57:58,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:57:58,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:57:58,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:57:58,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:57:58,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:57:58,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:57:58,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:57:58,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:57:58,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:57:58,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:57:58,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:57:58,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:57:58,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:57:58,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:57:58,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:57:58,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:57:58,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:57:58,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:57:58,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:57:58,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:57:58,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:57:58,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:57:58,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:57:58,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:57:58,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:57:58,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:57:58,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:57:58,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:57:58,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:57:58,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:57:58,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:57:58,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:57:58,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:57:58,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:57:58,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:57:58,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:57:58,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:57:58,515 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:57:58,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:57:58,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:57:58,517 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:57:58,517 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:57:58,517 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:57:58,518 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:57:58,518 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:57:58,518 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:57:58,518 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:57:58,525 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:57:58,525 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:57:58,525 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:57:58,526 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:57:58,526 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:57:58,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:57:58,527 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:57:58,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:57:58,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:57:58,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:57:58,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:57:58,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:57:58,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:57:58,528 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:57:58,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:57:58,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:57:58,529 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:57:58,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:57:58,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:57:58,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:57:58,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:57:58,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:57:58,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:57:58,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:57:58,531 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:57:58,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:57:58,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:57:58,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:57:58,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:57:58,532 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_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 [2021-10-24 10:57:58,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:57:58,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:57:58,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:57:58,803 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:57:58,804 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:57:58,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-10-24 10:57:58,882 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/data/480cd0ba5/06c66541c9e64f36b3090bfd2c15bc90/FLAG3d59843b3 [2021-10-24 10:57:59,373 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:57:59,374 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-10-24 10:57:59,409 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/data/480cd0ba5/06c66541c9e64f36b3090bfd2c15bc90/FLAG3d59843b3 [2021-10-24 10:57:59,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/data/480cd0ba5/06c66541c9e64f36b3090bfd2c15bc90 [2021-10-24 10:57:59,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:57:59,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:57:59,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:57:59,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:57:59,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:57:59,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:57:59" (1/1) ... [2021-10-24 10:57:59,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355e6199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:57:59, skipping insertion in model container [2021-10-24 10:57:59,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:57:59" (1/1) ... [2021-10-24 10:57:59,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:57:59,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:58:00,258 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: fesetround not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBuiltinFesetround(StandardFunctionHandler.java:1384) 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.visit(CHandler.java:1359) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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) [2021-10-24 10:58:00,268 INFO L168 Benchmark]: Toolchain (without parser) took 574.99 ms. Allocated memory is still 121.6 MB. Free memory was 90.4 MB in the beginning and 94.2 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:58:00,270 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 121.6 MB. Free memory was 75.4 MB in the beginning and 75.3 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:58:00,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 572.81 ms. Allocated memory is still 121.6 MB. Free memory was 90.1 MB in the beginning and 94.2 MB in the end (delta: -4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:58:00,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 121.6 MB. Free memory was 75.4 MB in the beginning and 75.3 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 572.81 ms. Allocated memory is still 121.6 MB. Free memory was 90.1 MB in the beginning and 94.2 MB in the end (delta: -4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: fesetround not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: fesetround not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) 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 [2021-10-24 10:58:02,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:58:02,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:58:02,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:58:02,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:58:02,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:58:02,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:58:02,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:58:02,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:58:02,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:58:02,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:58:02,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:58:02,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:58:02,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:58:02,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:58:02,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:58:02,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:58:02,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:58:02,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:58:02,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:58:02,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:58:02,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:58:02,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:58:02,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:58:02,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:58:02,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:58:02,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:58:02,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:58:02,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:58:02,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:58:02,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:58:02,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:58:02,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:58:02,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:58:02,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:58:02,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:58:02,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:58:02,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:58:02,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:58:02,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:58:02,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:58:02,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:58:02,643 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:58:02,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:58:02,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:58:02,644 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:58:02,644 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:58:02,645 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:58:02,645 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:58:02,645 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:58:02,645 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:58:02,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:58:02,646 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:58:02,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:58:02,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:58:02,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:58:02,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:58:02,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:58:02,647 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:58:02,648 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:58:02,648 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:58:02,648 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:58:02,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:58:02,648 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:58:02,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:58:02,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:58:02,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:58:02,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:58:02,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:58:02,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:58:02,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:58:02,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:58:02,650 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:58:02,650 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:58:02,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:58:02,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:58:02,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:58:02,651 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_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbfc84775d165ba071925cc295d45b37e6e48fdc14a38c03379a9274950a3653 [2021-10-24 10:58:03,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:58:03,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:58:03,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:58:03,034 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:58:03,036 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:58:03,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-10-24 10:58:03,105 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/data/7fe1de535/874132075fbb4ba78f6f172d0acecf50/FLAGe95de83ed [2021-10-24 10:58:03,714 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:58:03,715 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2021-10-24 10:58:03,729 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/data/7fe1de535/874132075fbb4ba78f6f172d0acecf50/FLAGe95de83ed [2021-10-24 10:58:03,987 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/data/7fe1de535/874132075fbb4ba78f6f172d0acecf50 [2021-10-24 10:58:03,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:58:03,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:58:03,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:58:03,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:58:04,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:58:04,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:58:03" (1/1) ... [2021-10-24 10:58:04,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1714bc0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04, skipping insertion in model container [2021-10-24 10:58:04,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:58:03" (1/1) ... [2021-10-24 10:58:04,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:58:04,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:58:04,766 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_983819a5-fdea-445e-a57f-c187f60cd3c6/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2021-10-24 10:58:04,771 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_983819a5-fdea-445e-a57f-c187f60cd3c6/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2021-10-24 10:58:04,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:58:04,796 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:58:04,834 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_983819a5-fdea-445e-a57f-c187f60cd3c6/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2021-10-24 10:58:04,835 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_983819a5-fdea-445e-a57f-c187f60cd3c6/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2021-10-24 10:58:04,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:58:04,999 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:58:04,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04 WrapperNode [2021-10-24 10:58:04,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:58:05,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:58:05,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:58:05,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:58:05,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04" (1/1) ... [2021-10-24 10:58:05,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04" (1/1) ... [2021-10-24 10:58:05,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:58:05,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:58:05,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:58:05,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:58:05,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04" (1/1) ... [2021-10-24 10:58:05,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04" (1/1) ... [2021-10-24 10:58:05,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04" (1/1) ... [2021-10-24 10:58:05,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04" (1/1) ... [2021-10-24 10:58:05,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04" (1/1) ... [2021-10-24 10:58:05,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04" (1/1) ... [2021-10-24 10:58:05,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04" (1/1) ... [2021-10-24 10:58:05,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:58:05,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:58:05,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:58:05,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:58:05,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04" (1/1) ... [2021-10-24 10:58:05,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:58:05,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:58:05,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:58:05,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:58:05,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:58:05,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:58:05,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:58:05,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:58:05,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:58:05,635 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-24 10:58:05,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:58:05 BoogieIcfgContainer [2021-10-24 10:58:05,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:58:05,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:58:05,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:58:05,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:58:05,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:58:03" (1/3) ... [2021-10-24 10:58:05,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343cacd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:58:05, skipping insertion in model container [2021-10-24 10:58:05,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:58:04" (2/3) ... [2021-10-24 10:58:05,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343cacd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:58:05, skipping insertion in model container [2021-10-24 10:58:05,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:58:05" (3/3) ... [2021-10-24 10:58:05,644 INFO L111 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2021-10-24 10:58:05,650 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:58:05,650 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-24 10:58:05,696 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:58:05,702 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 [2021-10-24 10:58:05,702 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-24 10:58:05,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 40 states have (on average 1.65) internal successors, (66), 44 states have internal predecessors, (66), 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) [2021-10-24 10:58:05,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:58:05,720 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:58:05,721 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:58:05,722 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-24 10:58:05,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:58:05,727 INFO L82 PathProgramCache]: Analyzing trace with hash 889523607, now seen corresponding path program 1 times [2021-10-24 10:58:05,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:58:05,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814608777] [2021-10-24 10:58:05,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:58:05,757 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:58:05,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:58:05,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:58:05,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:58:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:58:05,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:58:05,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:58:05,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:05,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:58:05,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:05,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:58:05,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814608777] [2021-10-24 10:58:05,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814608777] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:58:05,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:58:05,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:58:05,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562207088] [2021-10-24 10:58:05,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:58:05,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:58:05,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:58:05,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:58:05,968 INFO L87 Difference]: Start difference. First operand has 45 states, 40 states have (on average 1.65) internal successors, (66), 44 states have internal predecessors, (66), 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 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-10-24 10:58:06,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:58:06,045 INFO L93 Difference]: Finished difference Result 99 states and 138 transitions. [2021-10-24 10:58:06,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:58:06,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 6 [2021-10-24 10:58:06,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:58:06,054 INFO L225 Difference]: With dead ends: 99 [2021-10-24 10:58:06,055 INFO L226 Difference]: Without dead ends: 50 [2021-10-24 10:58:06,057 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:58:06,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-24 10:58:06,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 37. [2021-10-24 10:58:06,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 36 states have internal predecessors, (42), 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) [2021-10-24 10:58:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2021-10-24 10:58:06,089 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 6 [2021-10-24 10:58:06,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:58:06,089 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2021-10-24 10:58:06,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-10-24 10:58:06,090 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2021-10-24 10:58:06,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-24 10:58:06,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:58:06,091 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:58:06,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:58:06,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:58:06,304 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-24 10:58:06,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:58:06,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1806855123, now seen corresponding path program 1 times [2021-10-24 10:58:06,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:58:06,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983331154] [2021-10-24 10:58:06,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:58:06,307 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:58:06,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:58:06,308 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:58:06,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:58:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:58:06,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 10:58:06,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:58:06,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:06,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:58:08,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:08,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:58:08,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983331154] [2021-10-24 10:58:08,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983331154] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:58:08,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:58:08,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 10:58:08,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037723189] [2021-10-24 10:58:08,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:58:08,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:58:08,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:58:08,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:58:08,169 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-10-24 10:58:10,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:58:10,196 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2021-10-24 10:58:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 10:58:10,196 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 7 [2021-10-24 10:58:10,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:58:10,198 INFO L225 Difference]: With dead ends: 59 [2021-10-24 10:58:10,198 INFO L226 Difference]: Without dead ends: 57 [2021-10-24 10:58:10,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1779.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-24 10:58:10,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-24 10:58:10,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 35. [2021-10-24 10:58:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.25) internal successors, (40), 34 states have internal predecessors, (40), 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) [2021-10-24 10:58:10,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-10-24 10:58:10,206 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2021-10-24 10:58:10,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:58:10,206 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-10-24 10:58:10,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-10-24 10:58:10,207 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-10-24 10:58:10,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 10:58:10,208 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:58:10,208 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:58:10,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:58:10,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:58:10,421 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-24 10:58:10,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:58:10,422 INFO L82 PathProgramCache]: Analyzing trace with hash -260891071, now seen corresponding path program 1 times [2021-10-24 10:58:10,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:58:10,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076038778] [2021-10-24 10:58:10,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:58:10,424 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:58:10,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:58:10,429 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:58:10,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:58:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:58:10,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:58:10,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:58:10,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:10,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:58:10,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:10,692 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:58:10,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076038778] [2021-10-24 10:58:10,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076038778] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:58:10,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:58:10,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:58:10,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110650118] [2021-10-24 10:58:10,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:58:10,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:58:10,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:58:10,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:58:10,696 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-10-24 10:58:10,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:58:10,735 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2021-10-24 10:58:10,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:58:10,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 12 [2021-10-24 10:58:10,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:58:10,737 INFO L225 Difference]: With dead ends: 59 [2021-10-24 10:58:10,737 INFO L226 Difference]: Without dead ends: 35 [2021-10-24 10:58:10,738 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:58:10,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-24 10:58:10,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-24 10:58:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.0625) internal successors, (34), 34 states have internal predecessors, (34), 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) [2021-10-24 10:58:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2021-10-24 10:58:10,743 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 12 [2021-10-24 10:58:10,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:58:10,744 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2021-10-24 10:58:10,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-10-24 10:58:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2021-10-24 10:58:10,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-24 10:58:10,745 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:58:10,745 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:58:10,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:58:10,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:58:10,958 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-24 10:58:10,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:58:10,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1557632932, now seen corresponding path program 1 times [2021-10-24 10:58:10,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:58:10,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786009973] [2021-10-24 10:58:10,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:58:10,960 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:58:10,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:58:10,961 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:58:10,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:58:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:58:11,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 10:58:11,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:58:11,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:11,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:58:14,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:14,568 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:58:14,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786009973] [2021-10-24 10:58:14,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786009973] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:58:14,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:58:14,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 10:58:14,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221766114] [2021-10-24 10:58:14,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:58:14,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:58:14,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:58:14,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:58:14,572 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-24 10:58:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:58:15,583 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2021-10-24 10:58:15,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:58:15,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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 14 [2021-10-24 10:58:15,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:58:15,588 INFO L225 Difference]: With dead ends: 35 [2021-10-24 10:58:15,588 INFO L226 Difference]: Without dead ends: 33 [2021-10-24 10:58:15,588 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1743.5ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:58:15,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-24 10:58:15,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-24 10:58:15,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.032258064516129) internal successors, (32), 32 states have internal predecessors, (32), 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) [2021-10-24 10:58:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2021-10-24 10:58:15,593 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 14 [2021-10-24 10:58:15,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:58:15,593 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2021-10-24 10:58:15,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-24 10:58:15,594 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2021-10-24 10:58:15,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-24 10:58:15,594 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:58:15,595 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, 1, 1] [2021-10-24 10:58:15,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-24 10:58:15,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:58:15,796 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-24 10:58:15,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:58:15,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1314857025, now seen corresponding path program 1 times [2021-10-24 10:58:15,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:58:15,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131492961] [2021-10-24 10:58:15,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:58:15,797 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:58:15,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:58:15,798 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:58:15,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:58:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:58:15,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-24 10:58:15,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:58:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:18,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:58:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:24,783 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:58:24,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131492961] [2021-10-24 10:58:24,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131492961] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:58:24,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:58:24,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2021-10-24 10:58:24,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940415080] [2021-10-24 10:58:24,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-24 10:58:24,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:58:24,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-24 10:58:24,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-24 10:58:24,786 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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) [2021-10-24 10:58:29,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:58:29,345 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2021-10-24 10:58:29,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 10:58:29,346 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 23 [2021-10-24 10:58:29,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:58:29,347 INFO L225 Difference]: With dead ends: 33 [2021-10-24 10:58:29,347 INFO L226 Difference]: Without dead ends: 31 [2021-10-24 10:58:29,348 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 9021.0ms TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2021-10-24 10:58:29,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-24 10:58:29,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-24 10:58:29,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.0) internal successors, (30), 30 states have internal predecessors, (30), 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) [2021-10-24 10:58:29,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2021-10-24 10:58:29,353 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 23 [2021-10-24 10:58:29,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:58:29,354 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2021-10-24 10:58:29,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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) [2021-10-24 10:58:29,354 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2021-10-24 10:58:29,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-24 10:58:29,355 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:58:29,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:58:29,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-24 10:58:29,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:58:29,573 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-10-24 10:58:29,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:58:29,574 INFO L82 PathProgramCache]: Analyzing trace with hash 240169883, now seen corresponding path program 1 times [2021-10-24 10:58:29,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:58:29,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558416231] [2021-10-24 10:58:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:58:29,575 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:58:29,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:58:29,578 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:58:29,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:58:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:58:29,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-24 10:58:29,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:58:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:31,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:58:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:58:44,272 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:58:44,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558416231] [2021-10-24 10:58:44,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1558416231] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:58:44,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:58:44,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-24 10:58:44,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024433067] [2021-10-24 10:58:44,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-24 10:58:44,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:58:44,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-24 10:58:44,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2021-10-24 10:58:44,275 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 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) [2021-10-24 10:58:51,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:58:51,663 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2021-10-24 10:58:51,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-24 10:58:51,669 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 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 30 [2021-10-24 10:58:51,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:58:51,669 INFO L225 Difference]: With dead ends: 31 [2021-10-24 10:58:51,669 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 10:58:51,672 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 14849.6ms TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2021-10-24 10:58:51,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 10:58:51,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 10:58:51,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-24 10:58:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 10:58:51,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-10-24 10:58:51,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:58:51,673 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 10:58:51,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 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) [2021-10-24 10:58:51,673 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 10:58:51,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 10:58:51,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:58:51,675 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:58:51,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:58:51,676 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:58:51,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:58:51,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:58:51,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 10:58:51,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:58:51,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:58:51,932 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:58:52,207 INFO L857 garLoopResultBuilder]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2021-10-24 10:58:52,208 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1110) no Hoare annotation was computed. [2021-10-24 10:58:52,208 INFO L857 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2021-10-24 10:58:52,208 INFO L857 garLoopResultBuilder]: For program point L3-2(line 3) no Hoare annotation was computed. [2021-10-24 10:58:52,208 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,208 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,208 INFO L857 garLoopResultBuilder]: For program point L1110(line 1110) no Hoare annotation was computed. [2021-10-24 10:58:52,208 INFO L857 garLoopResultBuilder]: For program point L1110-1(line 1110) no Hoare annotation was computed. [2021-10-24 10:58:52,209 INFO L853 garLoopResultBuilder]: At program point L1110-3(lines 1097 1113) the Hoare annotation is: (and (fp.eq ULTIMATE.start_roundingTest_~roundToNearestSum~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388609.0 8388608.0))) (= currentRoundingMode roundTowardNegative) (exists ((v_currentRoundingMode_37 RoundingMode)) (= ULTIMATE.start_roundingTest_~roundDownSum~0 (fp.add currentRoundingMode ((_ to_fp 8 24) v_currentRoundingMode_37 ((_ to_fp 11 53) v_currentRoundingMode_37 1.0)) ((_ to_fp 8 24) v_currentRoundingMode_37 ((_ to_fp 11 53) v_currentRoundingMode_37 (/ 3.0 33554432.0)))))) (exists ((currentRoundingMode RoundingMode)) (and (= ULTIMATE.start_roundingTest_~f2 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3.0 33554432.0)))) (= ULTIMATE.start_roundingTest_~f1 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))))) (= (_ bv1024 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i)) [2021-10-24 10:58:52,209 INFO L857 garLoopResultBuilder]: For program point L1110-4(line 1110) no Hoare annotation was computed. [2021-10-24 10:58:52,209 INFO L857 garLoopResultBuilder]: For program point L1110-5(line 1110) no Hoare annotation was computed. [2021-10-24 10:58:52,209 INFO L853 garLoopResultBuilder]: At program point L1110-7(lines 1097 1113) the Hoare annotation is: (not (= (_ bv3072 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i)) [2021-10-24 10:58:52,209 INFO L853 garLoopResultBuilder]: At program point L1135(lines 1116 1136) the Hoare annotation is: (not (= (_ bv3072 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i)) [2021-10-24 10:58:52,209 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 1110) no Hoare annotation was computed. [2021-10-24 10:58:52,209 INFO L857 garLoopResultBuilder]: For program point L1103(line 1103) no Hoare annotation was computed. [2021-10-24 10:58:52,210 INFO L857 garLoopResultBuilder]: For program point L1103-1(line 1103) no Hoare annotation was computed. [2021-10-24 10:58:52,210 INFO L857 garLoopResultBuilder]: For program point L1103-3(line 1103) no Hoare annotation was computed. [2021-10-24 10:58:52,210 INFO L857 garLoopResultBuilder]: For program point L1103-4(line 1103) no Hoare annotation was computed. [2021-10-24 10:58:52,210 INFO L857 garLoopResultBuilder]: For program point L1103-5(line 1103) no Hoare annotation was computed. [2021-10-24 10:58:52,210 INFO L857 garLoopResultBuilder]: For program point L1103-7(line 1103) no Hoare annotation was computed. [2021-10-24 10:58:52,210 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,210 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,210 INFO L857 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,210 INFO L857 garLoopResultBuilder]: For program point L-1-5(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,211 INFO L857 garLoopResultBuilder]: For program point L-1-7(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,211 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1103) no Hoare annotation was computed. [2021-10-24 10:58:52,211 INFO L857 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,211 INFO L857 garLoopResultBuilder]: For program point L-1-10(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,211 INFO L857 garLoopResultBuilder]: For program point L-1-12(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,211 INFO L857 garLoopResultBuilder]: For program point L-1-14(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,211 INFO L857 garLoopResultBuilder]: For program point L-1-16(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,211 INFO L857 garLoopResultBuilder]: For program point L-1-18(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,211 INFO L857 garLoopResultBuilder]: For program point L-1-19(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,212 INFO L857 garLoopResultBuilder]: For program point L-1-21(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,212 INFO L857 garLoopResultBuilder]: For program point L-1-23(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,212 INFO L857 garLoopResultBuilder]: For program point L-1-25(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,212 INFO L857 garLoopResultBuilder]: For program point L-1-27(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,212 INFO L857 garLoopResultBuilder]: For program point L-1-28(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,212 INFO L857 garLoopResultBuilder]: For program point L-1-30(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,212 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,212 INFO L857 garLoopResultBuilder]: For program point L-1-32(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,212 INFO L857 garLoopResultBuilder]: For program point L-1-34(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,212 INFO L857 garLoopResultBuilder]: For program point L-1-36(line -1) no Hoare annotation was computed. [2021-10-24 10:58:52,213 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 1103) no Hoare annotation was computed. [2021-10-24 10:58:52,213 INFO L857 garLoopResultBuilder]: For program point L2(lines 2 4) no Hoare annotation was computed. [2021-10-24 10:58:52,218 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:58:52,227 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2021-10-24 10:58:52,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,230 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,230 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,235 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2021-10-24 10:58:52,235 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,235 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,235 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,236 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,236 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,236 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,236 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,236 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:58:52 BoogieIcfgContainer [2021-10-24 10:58:52,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:58:52,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:58:52,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:58:52,239 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:58:52,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:58:05" (3/4) ... [2021-10-24 10:58:52,243 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 10:58:52,255 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2021-10-24 10:58:52,255 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-10-24 10:58:52,255 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-24 10:58:52,256 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-24 10:58:52,279 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.eq~FLOAT(roundToNearestSum, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 8388609/8388608)) && unknown-currentRoundingMode-unknown == ~roundTowardNegative) && (\exists v_currentRoundingMode_37 : FloatRoundingMode :: roundDownSum == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(v_currentRoundingMode_37, ~to_fp~LONGDOUBLE(v_currentRoundingMode_37, 1.0)), ~to_fp~LONGDOUBLE(v_currentRoundingMode_37, ~to_fp~LONGDOUBLE(v_currentRoundingMode_37, 3/33554432))))) && (\exists currentRoundingMode : FloatRoundingMode :: f2 == ~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3/33554432)) && f1 == ~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)))) && 1024bv32 == unknown-i-unknown [2021-10-24 10:58:52,293 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:58:52,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:58:52,295 INFO L168 Benchmark]: Toolchain (without parser) took 48299.64 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 34.0 MB in the beginning and 52.8 MB in the end (delta: -18.8 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:58:52,295 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 56.6 MB. Free memory is still 37.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:58:52,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1003.50 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.8 MB in the beginning and 35.6 MB in the end (delta: -1.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:58:52,296 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.15 ms. Allocated memory is still 71.3 MB. Free memory was 35.6 MB in the beginning and 52.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:58:52,297 INFO L168 Benchmark]: Boogie Preprocessor took 27.90 ms. Allocated memory is still 71.3 MB. Free memory was 52.2 MB in the beginning and 50.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:58:52,297 INFO L168 Benchmark]: RCFGBuilder took 546.06 ms. Allocated memory is still 71.3 MB. Free memory was 50.8 MB in the beginning and 38.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:58:52,298 INFO L168 Benchmark]: TraceAbstraction took 46600.13 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 38.2 MB in the beginning and 56.3 MB in the end (delta: -18.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:58:52,298 INFO L168 Benchmark]: Witness Printer took 54.56 ms. Allocated memory is still 86.0 MB. Free memory was 56.3 MB in the beginning and 52.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:58:52,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 56.6 MB. Free memory is still 37.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1003.50 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.8 MB in the beginning and 35.6 MB in the end (delta: -1.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.15 ms. Allocated memory is still 71.3 MB. Free memory was 35.6 MB in the beginning and 52.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.90 ms. Allocated memory is still 71.3 MB. Free memory was 52.2 MB in the beginning and 50.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 546.06 ms. Allocated memory is still 71.3 MB. Free memory was 50.8 MB in the beginning and 38.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 46600.13 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 38.2 MB in the beginning and 56.3 MB in the end (delta: -18.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 54.56 ms. Allocated memory is still 86.0 MB. Free memory was 56.3 MB in the beginning and 52.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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 - PositiveResult [Line: 1103]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1103]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 46523.8ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 12.1ms, AutomataDifference: 15155.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 325.2ms, InitialAbstractionConstructionTime: 9.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 147 SDtfs, 448 SDslu, 230 SDs, 0 SdLazy, 332 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6705.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 27410.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 40.4ms AutomataMinimizationTime, 6 MinimizatonAttempts, 35 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 51 HoareAnnotationTreeSize, 3 FomulaSimplifications, 104 FormulaSimplificationTreeSizeReduction, 48.9ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 66 FormulaSimplificationTreeSizeReductionInter, 270.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 44.0ms SsaConstructionTime, 466.2ms SatisfiabilityAnalysisTime, 28784.7ms InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 172 ConstructedInterpolants, 36 QuantifiedInterpolants, 1283 SizeOfPredicates, 49 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1097]: Loop Invariant [2021-10-24 10:58:52,312 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2021-10-24 10:58:52,312 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,312 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,312 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,312 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,313 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,313 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,313 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,313 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,314 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2021-10-24 10:58:52,314 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,314 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,314 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_currentRoundingMode_37,QUANTIFIED] [2021-10-24 10:58:52,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 10:58:52,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((~fp.eq~FLOAT(roundToNearestSum, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 8388609/8388608)) && unknown-currentRoundingMode-unknown == ~roundTowardNegative) && (\exists v_currentRoundingMode_37 : FloatRoundingMode :: roundDownSum == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(v_currentRoundingMode_37, ~to_fp~LONGDOUBLE(v_currentRoundingMode_37, 1.0)), ~to_fp~LONGDOUBLE(v_currentRoundingMode_37, ~to_fp~LONGDOUBLE(v_currentRoundingMode_37, 3/33554432))))) && (\exists currentRoundingMode : FloatRoundingMode :: f2 == ~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3/33554432)) && f1 == ~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)))) && 1024bv32 == unknown-i-unknown - InvariantResult [Line: 1116]: Loop Invariant Derived loop invariant: !(3072bv32 == unknown-i-unknown) - InvariantResult [Line: 1097]: Loop Invariant Derived loop invariant: !(3072bv32 == unknown-i-unknown) RESULT: Ultimate proved your program to be correct! [2021-10-24 10:58:52,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_983819a5-fdea-445e-a57f-c187f60cd3c6/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...