./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1071.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1071.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55d78fe353fd0931b2d447fd45670a80ea73f6385110d8a7ff7bce3171c541bd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:50:10,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:50:10,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:50:10,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:50:10,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:50:10,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:50:10,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:50:10,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:50:10,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:50:10,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:50:10,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:50:10,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:50:10,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:50:10,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:50:10,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:50:10,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:50:10,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:50:10,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:50:10,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:50:10,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:50:10,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:50:10,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:50:10,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:50:10,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:50:10,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:50:10,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:50:10,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:50:10,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:50:10,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:50:10,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:50:10,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:50:10,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:50:10,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:50:10,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:50:10,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:50:10,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:50:10,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:50:10,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:50:10,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:50:10,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:50:10,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:50:10,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:50:10,370 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:50:10,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:50:10,370 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:50:10,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:50:10,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:50:10,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:50:10,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:50:10,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:50:10,377 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:50:10,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:50:10,378 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:50:10,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:50:10,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:50:10,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:50:10,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:50:10,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:50:10,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:50:10,379 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:50:10,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:50:10,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:50:10,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:50:10,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:50:10,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:50:10,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:50:10,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:50:10,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:50:10,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:50:10,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:50:10,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:50:10,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:50:10,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:50:10,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:50:10,381 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:50:10,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:50:10,382 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:50:10,382 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55d78fe353fd0931b2d447fd45670a80ea73f6385110d8a7ff7bce3171c541bd [2022-12-13 15:50:10,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:50:10,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:50:10,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:50:10,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:50:10,569 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:50:10,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2022-12-13 15:50:13,179 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:50:13,296 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:50:13,297 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2022-12-13 15:50:13,301 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/data/e810c2764/e7f4b6c587234c869f13c5897ce85ca6/FLAGe4831046d [2022-12-13 15:50:13,312 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/data/e810c2764/e7f4b6c587234c869f13c5897ce85ca6 [2022-12-13 15:50:13,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:50:13,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:50:13,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:50:13,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:50:13,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:50:13,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f41bc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13, skipping insertion in model container [2022-12-13 15:50:13,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:50:13,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:50:13,446 WARN L237 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_914096f9-7c62-4890-a552-1d640a69ed18/sv-benchmarks/c/float-newlib/float_req_bl_1071.c[1429,1442] [2022-12-13 15:50:13,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:50:13,456 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:50:13,470 WARN L237 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_914096f9-7c62-4890-a552-1d640a69ed18/sv-benchmarks/c/float-newlib/float_req_bl_1071.c[1429,1442] [2022-12-13 15:50:13,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:50:13,481 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:50:13,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13 WrapperNode [2022-12-13 15:50:13,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:50:13,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:50:13,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:50:13,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:50:13,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,507 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2022-12-13 15:50:13,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:50:13,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:50:13,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:50:13,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:50:13,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,524 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:50:13,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:50:13,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:50:13,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:50:13,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (1/1) ... [2022-12-13 15:50:13,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:50:13,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:50:13,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:50:13,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:50:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:50:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:50:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:50:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-12-13 15:50:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:50:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-12-13 15:50:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:50:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:50:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:50:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:50:13,653 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:50:13,655 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:50:13,788 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:50:13,792 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:50:13,792 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-13 15:50:13,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:50:13 BoogieIcfgContainer [2022-12-13 15:50:13,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:50:13,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:50:13,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:50:13,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:50:13,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:50:13" (1/3) ... [2022-12-13 15:50:13,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62123ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:50:13, skipping insertion in model container [2022-12-13 15:50:13,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:13" (2/3) ... [2022-12-13 15:50:13,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62123ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:50:13, skipping insertion in model container [2022-12-13 15:50:13,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:50:13" (3/3) ... [2022-12-13 15:50:13,803 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071.c [2022-12-13 15:50:13,822 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:50:13,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 15:50:13,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:50:13,864 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@68ec8a7f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:50:13,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 15:50:13,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 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) [2022-12-13 15:50:13,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 15:50:13,873 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:50:13,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:50:13,873 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:50:13,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:50:13,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1945097259, now seen corresponding path program 1 times [2022-12-13 15:50:13,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:50:13,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440488420] [2022-12-13 15:50:13,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:50:13,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:50:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:50:14,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:50:14,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:50:14,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440488420] [2022-12-13 15:50:14,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440488420] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:50:14,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:50:14,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:50:14,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540958648] [2022-12-13 15:50:14,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:50:14,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:50:14,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:50:14,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:50:14,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:50:14,052 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-12-13 15:50:14,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:50:14,066 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2022-12-13 15:50:14,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:50:14,068 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-12-13 15:50:14,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:50:14,075 INFO L225 Difference]: With dead ends: 40 [2022-12-13 15:50:14,076 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 15:50:14,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:50:14,081 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:50:14,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:50:14,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 15:50:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-13 15:50:14,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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) [2022-12-13 15:50:14,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-13 15:50:14,106 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2022-12-13 15:50:14,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:50:14,106 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-13 15:50:14,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-12-13 15:50:14,106 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-13 15:50:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 15:50:14,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:50:14,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:50:14,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:50:14,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:50:14,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:50:14,108 INFO L85 PathProgramCache]: Analyzing trace with hash -390209938, now seen corresponding path program 1 times [2022-12-13 15:50:14,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:50:14,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406334938] [2022-12-13 15:50:14,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:50:14,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:50:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:50:14,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:50:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:50:14,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:50:14,215 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:50:14,217 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 15:50:14,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:50:14,222 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 15:50:14,224 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:50:14,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:50:14 BoogieIcfgContainer [2022-12-13 15:50:14,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:50:14,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:50:14,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:50:14,239 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:50:14,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:50:13" (3/4) ... [2022-12-13 15:50:14,242 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:50:14,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:50:14,243 INFO L158 Benchmark]: Toolchain (without parser) took 927.76ms. Allocated memory is still 123.7MB. Free memory was 83.7MB in the beginning and 81.2MB in the end (delta: 2.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-12-13 15:50:14,243 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:50:14,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.60ms. Allocated memory is still 123.7MB. Free memory was 83.7MB in the beginning and 73.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 15:50:14,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.32ms. Allocated memory is still 123.7MB. Free memory was 73.0MB in the beginning and 71.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:50:14,244 INFO L158 Benchmark]: Boogie Preprocessor took 18.93ms. Allocated memory is still 123.7MB. Free memory was 71.1MB in the beginning and 69.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:50:14,244 INFO L158 Benchmark]: RCFGBuilder took 266.94ms. Allocated memory is still 123.7MB. Free memory was 69.8MB in the beginning and 57.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 15:50:14,244 INFO L158 Benchmark]: TraceAbstraction took 442.72ms. Allocated memory is still 123.7MB. Free memory was 56.4MB in the beginning and 81.8MB in the end (delta: -25.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:50:14,245 INFO L158 Benchmark]: Witness Printer took 2.97ms. Allocated memory is still 123.7MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:50:14,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.60ms. Allocated memory is still 123.7MB. Free memory was 83.7MB in the beginning and 73.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.32ms. Allocated memory is still 123.7MB. Free memory was 73.0MB in the beginning and 71.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.93ms. Allocated memory is still 123.7MB. Free memory was 71.1MB in the beginning and 69.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 266.94ms. Allocated memory is still 123.7MB. Free memory was 69.8MB in the beginning and 57.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 442.72ms. Allocated memory is still 123.7MB. Free memory was 56.4MB in the beginning and 81.8MB in the end (delta: -25.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.97ms. Allocated memory is still 123.7MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 59]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 40, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L54] float x = 0.0f / 0.0f; [L55] CALL, EXPR trunc_float(x) [L15] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=8589934599, x=8589934599] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L21] signbit = w & 0x80000000 [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=8589934599, exponent_less_127=255, signbit=4294967295, w=-1, x=8589934599] [L23] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=8589934599, exponent_less_127=255, signbit=4294967295, w=-1, x=8589934599] [L39] COND TRUE exponent_less_127 == 255 [L40] return x + x; VAL [\old(x)=8589934599, exponent_less_127=255, signbit=4294967295, w=-1, x=8589934599] [L55] RET, EXPR trunc_float(x) [L55] float res = trunc_float(x); [L58] CALL, EXPR isnan_float(res) [L46] return x != x; VAL [\old(x)=8589934600, \result=0, x=8589934600] [L58] RET, EXPR isnan_float(res) [L58] COND TRUE !isnan_float(res) [L59] reach_error() VAL [res=8589934600, x=8589934599] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 23 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 15:50:14,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1071.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55d78fe353fd0931b2d447fd45670a80ea73f6385110d8a7ff7bce3171c541bd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:50:15,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:50:15,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:50:15,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:50:15,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:50:15,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:50:15,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:50:15,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:50:15,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:50:15,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:50:15,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:50:15,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:50:15,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:50:15,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:50:15,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:50:15,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:50:15,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:50:15,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:50:15,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:50:15,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:50:15,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:50:15,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:50:15,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:50:15,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:50:16,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:50:16,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:50:16,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:50:16,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:50:16,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:50:16,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:50:16,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:50:16,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:50:16,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:50:16,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:50:16,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:50:16,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:50:16,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:50:16,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:50:16,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:50:16,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:50:16,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:50:16,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 15:50:16,024 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:50:16,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:50:16,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:50:16,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:50:16,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:50:16,025 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:50:16,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:50:16,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:50:16,026 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:50:16,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:50:16,026 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:50:16,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:50:16,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:50:16,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:50:16,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:50:16,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:50:16,027 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 15:50:16,027 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 15:50:16,027 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 15:50:16,027 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:50:16,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:50:16,028 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:50:16,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:50:16,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:50:16,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:50:16,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:50:16,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:50:16,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:50:16,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:50:16,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:50:16,029 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 15:50:16,029 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 15:50:16,029 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:50:16,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:50:16,029 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:50:16,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:50:16,029 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 15:50:16,029 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:50:16,030 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55d78fe353fd0931b2d447fd45670a80ea73f6385110d8a7ff7bce3171c541bd [2022-12-13 15:50:16,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:50:16,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:50:16,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:50:16,266 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:50:16,266 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:50:16,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2022-12-13 15:50:18,747 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:50:18,903 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:50:18,903 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2022-12-13 15:50:18,910 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/data/877c26efb/3625a74393d54c338f1e1e0c933cf5fc/FLAGfd35681ba [2022-12-13 15:50:18,921 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/data/877c26efb/3625a74393d54c338f1e1e0c933cf5fc [2022-12-13 15:50:18,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:50:18,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:50:18,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:50:18,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:50:18,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:50:18,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:50:18" (1/1) ... [2022-12-13 15:50:18,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c2f5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:18, skipping insertion in model container [2022-12-13 15:50:18,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:50:18" (1/1) ... [2022-12-13 15:50:18,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:50:18,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:50:19,080 WARN L237 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_914096f9-7c62-4890-a552-1d640a69ed18/sv-benchmarks/c/float-newlib/float_req_bl_1071.c[1429,1442] [2022-12-13 15:50:19,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:50:19,093 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:50:19,108 WARN L237 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_914096f9-7c62-4890-a552-1d640a69ed18/sv-benchmarks/c/float-newlib/float_req_bl_1071.c[1429,1442] [2022-12-13 15:50:19,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:50:19,121 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:50:19,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19 WrapperNode [2022-12-13 15:50:19,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:50:19,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:50:19,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:50:19,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:50:19,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (1/1) ... [2022-12-13 15:50:19,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (1/1) ... [2022-12-13 15:50:19,149 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2022-12-13 15:50:19,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:50:19,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:50:19,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:50:19,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:50:19,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (1/1) ... [2022-12-13 15:50:19,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (1/1) ... [2022-12-13 15:50:19,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (1/1) ... [2022-12-13 15:50:19,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (1/1) ... [2022-12-13 15:50:19,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (1/1) ... [2022-12-13 15:50:19,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (1/1) ... [2022-12-13 15:50:19,169 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (1/1) ... [2022-12-13 15:50:19,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (1/1) ... [2022-12-13 15:50:19,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:50:19,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:50:19,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:50:19,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:50:19,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (1/1) ... [2022-12-13 15:50:19,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:50:19,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:50:19,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:50:19,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:50:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:50:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 15:50:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:50:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-12-13 15:50:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 15:50:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:50:19,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:50:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-12-13 15:50:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 15:50:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:50:19,299 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:50:19,301 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:50:19,469 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:50:19,475 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:50:19,475 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-13 15:50:19,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:50:19 BoogieIcfgContainer [2022-12-13 15:50:19,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:50:19,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:50:19,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:50:19,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:50:19,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:50:18" (1/3) ... [2022-12-13 15:50:19,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c4052c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:50:19, skipping insertion in model container [2022-12-13 15:50:19,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:50:19" (2/3) ... [2022-12-13 15:50:19,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c4052c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:50:19, skipping insertion in model container [2022-12-13 15:50:19,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:50:19" (3/3) ... [2022-12-13 15:50:19,486 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071.c [2022-12-13 15:50:19,504 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:50:19,504 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 15:50:19,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:50:19,555 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@45a18d7a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:50:19,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 15:50:19,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 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) [2022-12-13 15:50:19,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 15:50:19,565 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:50:19,566 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:50:19,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:50:19,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:50:19,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1945097259, now seen corresponding path program 1 times [2022-12-13 15:50:19,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:50:19,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012231502] [2022-12-13 15:50:19,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:50:19,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:50:19,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:50:19,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:50:19,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 15:50:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:50:19,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 15:50:19,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:50:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:50:19,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:50:19,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:50:19,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012231502] [2022-12-13 15:50:19,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012231502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:50:19,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:50:19,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:50:19,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984402657] [2022-12-13 15:50:19,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:50:19,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:50:19,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:50:19,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:50:19,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:50:19,708 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-12-13 15:50:19,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:50:19,719 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2022-12-13 15:50:19,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:50:19,721 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-12-13 15:50:19,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:50:19,726 INFO L225 Difference]: With dead ends: 40 [2022-12-13 15:50:19,726 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 15:50:19,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:50:19,730 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:50:19,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:50:19,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 15:50:19,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-13 15:50:19,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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) [2022-12-13 15:50:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-13 15:50:19,752 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2022-12-13 15:50:19,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:50:19,752 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-13 15:50:19,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-12-13 15:50:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-13 15:50:19,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 15:50:19,752 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:50:19,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:50:19,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:50:19,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:50:19,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:50:19,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:50:19,957 INFO L85 PathProgramCache]: Analyzing trace with hash -390209938, now seen corresponding path program 1 times [2022-12-13 15:50:19,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:50:19,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118530217] [2022-12-13 15:50:19,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:50:19,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:50:19,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:50:19,963 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:50:19,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 15:50:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:50:20,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:50:20,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:50:20,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:50:20,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:50:20,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:50:20,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118530217] [2022-12-13 15:50:20,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118530217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:50:20,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:50:20,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:50:20,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213980281] [2022-12-13 15:50:20,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:50:20,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:50:20,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:50:20,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:50:20,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:50:20,227 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-13 15:50:20,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:50:20,265 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2022-12-13 15:50:20,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:50:20,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-12-13 15:50:20,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:50:20,267 INFO L225 Difference]: With dead ends: 29 [2022-12-13 15:50:20,267 INFO L226 Difference]: Without dead ends: 24 [2022-12-13 15:50:20,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:50:20,268 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 24 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:50:20,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 24 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:50:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-13 15:50:20,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2022-12-13 15:50:20,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 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) [2022-12-13 15:50:20,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-12-13 15:50:20,275 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 11 [2022-12-13 15:50:20,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:50:20,275 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-12-13 15:50:20,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-13 15:50:20,276 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-12-13 15:50:20,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 15:50:20,276 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:50:20,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:50:20,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 15:50:20,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:50:20,478 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:50:20,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:50:20,480 INFO L85 PathProgramCache]: Analyzing trace with hash 843742638, now seen corresponding path program 1 times [2022-12-13 15:50:20,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:50:20,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691391941] [2022-12-13 15:50:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:50:20,484 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:50:20,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:50:20,487 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:50:20,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 15:50:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:50:20,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 15:50:20,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:50:20,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:50:20,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:50:20,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:50:20,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691391941] [2022-12-13 15:50:20,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691391941] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:50:20,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:50:20,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 15:50:20,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385362056] [2022-12-13 15:50:20,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:50:20,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:50:20,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:50:20,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:50:20,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:50:20,704 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2022-12-13 15:50:20,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:50:20,857 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2022-12-13 15:50:20,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:50:20,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 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 12 [2022-12-13 15:50:20,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:50:20,857 INFO L225 Difference]: With dead ends: 24 [2022-12-13 15:50:20,857 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 15:50:20,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:50:20,858 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:50:20,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 65 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 15:50:20,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 15:50:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 15:50:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-12-13 15:50:20,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-12-13 15:50:20,862 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 12 [2022-12-13 15:50:20,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:50:20,862 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-12-13 15:50:20,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 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) [2022-12-13 15:50:20,863 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-12-13 15:50:20,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 15:50:20,863 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:50:20,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:50:20,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 15:50:21,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:50:21,065 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:50:21,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:50:21,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2105231138, now seen corresponding path program 1 times [2022-12-13 15:50:21,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:50:21,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875764189] [2022-12-13 15:50:21,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:50:21,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:50:21,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:50:21,068 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:50:21,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 15:50:21,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 139 [2022-12-13 15:50:21,172 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-12-13 15:50:21,181 INFO L158 Benchmark]: Toolchain (without parser) took 2255.22ms. Allocated memory is still 90.2MB. Free memory was 68.3MB in the beginning and 45.0MB in the end (delta: 23.4MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-12-13 15:50:21,182 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 69.2MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:50:21,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.70ms. Allocated memory is still 90.2MB. Free memory was 68.1MB in the beginning and 57.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 15:50:21,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.90ms. Allocated memory is still 90.2MB. Free memory was 57.1MB in the beginning and 55.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:50:21,185 INFO L158 Benchmark]: Boogie Preprocessor took 22.75ms. Allocated memory is still 90.2MB. Free memory was 55.3MB in the beginning and 53.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:50:21,186 INFO L158 Benchmark]: RCFGBuilder took 304.57ms. Allocated memory is still 90.2MB. Free memory was 53.8MB in the beginning and 66.8MB in the end (delta: -13.0MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-12-13 15:50:21,188 INFO L158 Benchmark]: TraceAbstraction took 1699.12ms. Allocated memory is still 90.2MB. Free memory was 66.0MB in the beginning and 45.0MB in the end (delta: 21.1MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2022-12-13 15:50:21,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 69.2MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.70ms. Allocated memory is still 90.2MB. Free memory was 68.1MB in the beginning and 57.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.90ms. Allocated memory is still 90.2MB. Free memory was 57.1MB in the beginning and 55.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.75ms. Allocated memory is still 90.2MB. Free memory was 55.3MB in the beginning and 53.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 304.57ms. Allocated memory is still 90.2MB. Free memory was 53.8MB in the beginning and 66.8MB in the end (delta: -13.0MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1699.12ms. Allocated memory is still 90.2MB. Free memory was 66.0MB in the beginning and 45.0MB in the end (delta: 21.1MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-13 15:50:21,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_914096f9-7c62-4890-a552-1d640a69ed18/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output.