./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20.i --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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e --- 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 12:02:56,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:02:56,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:02:56,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:02:56,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:02:56,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:02:56,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:02:56,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:02:56,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:02:56,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:02:56,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:02:56,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:02:56,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:02:56,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:02:56,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:02:56,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:02:56,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:02:56,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:02:56,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:02:56,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:02:56,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:02:56,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:02:56,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:02:56,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:02:56,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:02:56,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:02:56,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:02:56,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:02:56,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:02:56,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:02:56,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:02:56,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:02:56,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:02:56,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:02:56,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:02:56,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:02:56,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:02:56,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:02:56,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:02:56,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:02:56,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:02:56,431 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 12:02:56,450 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:02:56,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:02:56,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:02:56,451 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:02:56,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:02:56,452 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:02:56,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:02:56,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:02:56,453 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:02:56,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:02:56,453 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:02:56,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:02:56,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:02:56,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:02:56,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:02:56,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:02:56,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:02:56,460 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:02:56,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:02:56,460 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:02:56,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:02:56,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:02:56,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:02:56,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:02:56,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:02:56,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:02:56,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:02:56,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:02:56,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:02:56,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:02:56,462 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:02:56,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:02:56,462 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:02:56,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:02:56,462 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:02:56,463 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e [2022-12-13 12:02:56,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:02:56,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:02:56,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:02:56,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:02:56,675 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:02:56,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-12-13 12:02:59,168 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:02:59,315 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:02:59,316 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-12-13 12:02:59,320 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/data/a7779d4bf/47b119417a6c4e94ba76f074105831ab/FLAG1b7e56f73 [2022-12-13 12:02:59,737 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/data/a7779d4bf/47b119417a6c4e94ba76f074105831ab [2022-12-13 12:02:59,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:02:59,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:02:59,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:02:59,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:02:59,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:02:59,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df6b944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59, skipping insertion in model container [2022-12-13 12:02:59,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:02:59,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:02:59,872 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-12-13 12:02:59,878 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-12-13 12:02:59,881 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-12-13 12:02:59,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:02:59,890 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:02:59,900 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-12-13 12:02:59,903 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-12-13 12:02:59,904 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-12-13 12:02:59,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:02:59,916 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:02:59,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59 WrapperNode [2022-12-13 12:02:59,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:02:59,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:02:59,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:02:59,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:02:59,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,939 INFO L138 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2022-12-13 12:02:59,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:02:59,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:02:59,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:02:59,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:02:59,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,952 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:02:59,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:02:59,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:02:59,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:02:59,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (1/1) ... [2022-12-13 12:02:59,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:02:59,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:02:59,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:02:59,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:03:00,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:03:00,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:03:00,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:03:00,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:03:00,057 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:03:00,059 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:03:00,123 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:03:00,127 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:03:00,128 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:03:00,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:03:00 BoogieIcfgContainer [2022-12-13 12:03:00,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:03:00,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:03:00,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:03:00,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:03:00,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:02:59" (1/3) ... [2022-12-13 12:03:00,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154a08a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:03:00, skipping insertion in model container [2022-12-13 12:03:00,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:02:59" (2/3) ... [2022-12-13 12:03:00,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154a08a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:03:00, skipping insertion in model container [2022-12-13 12:03:00,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:03:00" (3/3) ... [2022-12-13 12:03:00,135 INFO L112 eAbstractionObserver]: Analyzing ICFG float20.i [2022-12-13 12:03:00,150 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:03:00,150 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-13 12:03:00,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:03:00,193 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;@1cd4167a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:03:00,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 12:03:00,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 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 12:03:00,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 12:03:00,203 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:03:00,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:03:00,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:03:00,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:03:00,208 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-12-13 12:03:00,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:03:00,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26413130] [2022-12-13 12:03:00,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:03:00,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:03:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:03:00,318 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 12:03:00,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:03:00,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26413130] [2022-12-13 12:03:00,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26413130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:03:00,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:03:00,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:03:00,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938094091] [2022-12-13 12:03:00,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:03:00,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:03:00,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:03:00,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:03:00,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:03:00,353 INFO L87 Difference]: Start difference. First operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 12:03:00,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:03:00,365 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2022-12-13 12:03:00,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:03:00,367 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-13 12:03:00,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:03:00,372 INFO L225 Difference]: With dead ends: 43 [2022-12-13 12:03:00,372 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 12:03:00,374 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 12:03:00,377 INFO L413 NwaCegarLoop]: 22 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, 22 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 12:03:00,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:03:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 12:03:00,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 12:03:00,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 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 12:03:00,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2022-12-13 12:03:00,401 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 6 [2022-12-13 12:03:00,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:03:00,401 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2022-12-13 12:03:00,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 12:03:00,402 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2022-12-13 12:03:00,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 12:03:00,402 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:03:00,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:03:00,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:03:00,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:03:00,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:03:00,404 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-12-13 12:03:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:03:00,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434498379] [2022-12-13 12:03:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:03:00,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:03:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:03:00,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:03:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:03:00,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:03:00,435 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:03:00,437 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 12:03:00,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-12-13 12:03:00,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-13 12:03:00,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:03:00,444 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:03:00,446 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:03:00,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:03:00 BoogieIcfgContainer [2022-12-13 12:03:00,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:03:00,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:03:00,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:03:00,459 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:03:00,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:03:00" (3/4) ... [2022-12-13 12:03:00,461 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:03:00,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:03:00,462 INFO L158 Benchmark]: Toolchain (without parser) took 719.90ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 90.6MB in the beginning and 115.3MB in the end (delta: -24.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-12-13 12:03:00,462 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:03:00,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.80ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 78.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 12:03:00,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.79ms. Allocated memory is still 123.7MB. Free memory was 78.3MB in the beginning and 76.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:03:00,463 INFO L158 Benchmark]: Boogie Preprocessor took 13.90ms. Allocated memory is still 123.7MB. Free memory was 76.7MB in the beginning and 75.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:03:00,464 INFO L158 Benchmark]: RCFGBuilder took 174.76ms. Allocated memory is still 123.7MB. Free memory was 75.6MB in the beginning and 66.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 12:03:00,464 INFO L158 Benchmark]: TraceAbstraction took 327.93ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 65.8MB in the beginning and 115.3MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:03:00,464 INFO L158 Benchmark]: Witness Printer took 2.82ms. Allocated memory is still 153.1MB. Free memory is still 115.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:03:00,466 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 123.7MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.80ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 78.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.79ms. Allocated memory is still 123.7MB. Free memory was 78.3MB in the beginning and 76.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.90ms. Allocated memory is still 123.7MB. Free memory was 76.7MB in the beginning and 75.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 174.76ms. Allocated memory is still 123.7MB. Free memory was 75.6MB in the beginning and 66.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 327.93ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 65.8MB in the beginning and 115.3MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.82ms. Allocated memory is still 153.1MB. Free memory is still 115.3MB. 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: 21]: 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 21, overapproximation of someBinaryArithmeticFLOAToperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 18. Possible FailurePath: [L48] float f=__VERIFIER_nondet_float(); [L49] CALL bug(f) [L17] COND FALSE !(!(min == 0x1.fffffep-105f)) VAL [\old(min)=53, min=53] [L18] float modifier = (0x1.0p-23 * (1<<1)); [L19] float ulpdiff = min * modifier; VAL [\old(min)=53, min=53] [L21] COND TRUE !(ulpdiff == 0x1p-126f) VAL [\old(min)=53, min=53] [L21] reach_error() VAL [\old(min)=53, min=53] - UnprovableResult [Line: 32]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 22 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, 22 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=23occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 12:03:00,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e --- 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 12:03:02,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:03:02,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:03:02,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:03:02,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:03:02,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:03:02,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:03:02,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:03:02,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:03:02,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:03:02,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:03:02,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:03:02,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:03:02,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:03:02,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:03:02,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:03:02,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:03:02,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:03:02,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:03:02,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:03:02,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:03:02,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:03:02,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:03:02,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:03:02,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:03:02,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:03:02,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:03:02,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:03:02,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:03:02,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:03:02,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:03:02,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:03:02,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:03:02,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:03:02,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:03:02,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:03:02,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:03:02,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:03:02,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:03:02,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:03:02,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:03:02,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 12:03:02,216 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:03:02,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:03:02,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:03:02,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:03:02,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:03:02,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:03:02,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:03:02,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:03:02,218 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:03:02,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:03:02,219 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:03:02,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:03:02,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:03:02,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:03:02,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:03:02,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:03:02,220 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:03:02,220 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:03:02,220 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:03:02,220 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:03:02,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:03:02,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:03:02,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:03:02,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:03:02,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:03:02,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:03:02,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:03:02,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:03:02,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:03:02,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:03:02,222 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:03:02,228 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:03:02,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:03:02,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:03:02,228 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:03:02,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:03:02,228 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:03:02,229 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:03:02,229 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e [2022-12-13 12:03:02,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:03:02,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:03:02,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:03:02,481 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:03:02,482 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:03:02,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-12-13 12:03:05,022 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:03:05,207 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:03:05,208 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-12-13 12:03:05,214 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/data/46f0109ea/d8a330695174419da819108ac16605f0/FLAG267b109e5 [2022-12-13 12:03:05,581 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/data/46f0109ea/d8a330695174419da819108ac16605f0 [2022-12-13 12:03:05,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:03:05,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:03:05,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:03:05,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:03:05,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:03:05,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c92477d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05, skipping insertion in model container [2022-12-13 12:03:05,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:03:05,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:03:05,707 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-12-13 12:03:05,714 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-12-13 12:03:05,717 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-12-13 12:03:05,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:03:05,728 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:03:05,739 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-12-13 12:03:05,742 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-12-13 12:03:05,744 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_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-12-13 12:03:05,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:03:05,755 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:03:05,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05 WrapperNode [2022-12-13 12:03:05,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:03:05,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:03:05,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:03:05,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:03:05,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,780 INFO L138 Inliner]: procedures = 19, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2022-12-13 12:03:05,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:03:05,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:03:05,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:03:05,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:03:05,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,796 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:03:05,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:03:05,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:03:05,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:03:05,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (1/1) ... [2022-12-13 12:03:05,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:03:05,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:03:05,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:03:05,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:03:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:03:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 12:03:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:03:05,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:03:05,915 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:03:05,916 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:03:08,190 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:03:08,195 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:03:08,195 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:03:08,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:03:08 BoogieIcfgContainer [2022-12-13 12:03:08,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:03:08,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:03:08,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:03:08,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:03:08,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:03:05" (1/3) ... [2022-12-13 12:03:08,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63510e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:03:08, skipping insertion in model container [2022-12-13 12:03:08,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:03:05" (2/3) ... [2022-12-13 12:03:08,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63510e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:03:08, skipping insertion in model container [2022-12-13 12:03:08,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:03:08" (3/3) ... [2022-12-13 12:03:08,202 INFO L112 eAbstractionObserver]: Analyzing ICFG float20.i [2022-12-13 12:03:08,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:03:08,215 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-13 12:03:08,246 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:03:08,250 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;@2371770b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:03:08,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 12:03:08,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 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 12:03:08,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 12:03:08,259 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:03:08,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:03:08,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:03:08,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:03:08,264 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-12-13 12:03:08,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:03:08,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141303560] [2022-12-13 12:03:08,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:03:08,273 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 12:03:08,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:03:08,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:08,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:03:08,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 12:03:08,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:03:08,404 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 12:03:08,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:03:08,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:03:08,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141303560] [2022-12-13 12:03:08,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141303560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:03:08,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:03:08,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:03:08,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244636652] [2022-12-13 12:03:08,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:03:08,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:03:08,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:03:08,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:03:08,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:03:08,431 INFO L87 Difference]: Start difference. First operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 12:03:08,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:03:08,442 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2022-12-13 12:03:08,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:03:08,444 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-13 12:03:08,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:03:08,448 INFO L225 Difference]: With dead ends: 43 [2022-12-13 12:03:08,449 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 12:03:08,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 12:03:08,453 INFO L413 NwaCegarLoop]: 22 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, 22 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 12:03:08,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:03:08,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 12:03:08,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 12:03:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 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 12:03:08,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2022-12-13 12:03:08,479 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 6 [2022-12-13 12:03:08,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:03:08,479 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2022-12-13 12:03:08,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 12:03:08,480 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2022-12-13 12:03:08,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 12:03:08,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:03:08,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 12:03:08,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:08,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:08,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:03:08,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:03:08,685 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-12-13 12:03:08,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:03:08,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039268248] [2022-12-13 12:03:08,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:03:08,687 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 12:03:08,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:03:08,690 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:08,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:03:08,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:03:08,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:03:09,272 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 12:03:09,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:03:09,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:03:09,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039268248] [2022-12-13 12:03:09,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039268248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:03:09,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:03:09,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:03:09,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727487362] [2022-12-13 12:03:09,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:03:09,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:03:09,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:03:09,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:03:09,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:03:09,274 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 12:03:11,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 12:03:11,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:03:11,976 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2022-12-13 12:03:11,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:03:11,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-13 12:03:11,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:03:11,977 INFO L225 Difference]: With dead ends: 19 [2022-12-13 12:03:11,977 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 12:03:11,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:03:11,978 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 12:03:11,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 14 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 12:03:11,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 12:03:11,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 12:03:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 16 states have internal predecessors, (16), 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 12:03:11,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-12-13 12:03:11,981 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 6 [2022-12-13 12:03:11,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:03:11,981 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-12-13 12:03:11,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 12:03:11,981 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-12-13 12:03:11,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 12:03:11,981 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:03:11,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:03:11,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:12,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:12,184 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:03:12,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:03:12,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1928169781, now seen corresponding path program 1 times [2022-12-13 12:03:12,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:03:12,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446394423] [2022-12-13 12:03:12,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:03:12,188 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 12:03:12,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:03:12,189 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:12,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:03:12,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:03:12,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:03:23,460 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 12:03:23,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:03:23,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:03:23,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446394423] [2022-12-13 12:03:23,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446394423] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:03:23,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:03:23,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:03:23,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525813285] [2022-12-13 12:03:23,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:03:23,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:03:23,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:03:23,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:03:23,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:03:23,462 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 12:03:29,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 12:03:32,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 12:03:34,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 12:03:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:03:35,125 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2022-12-13 12:03:35,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:03:35,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 12:03:35,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:03:35,152 INFO L225 Difference]: With dead ends: 17 [2022-12-13 12:03:35,152 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 12:03:35,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:03:35,153 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-12-13 12:03:35,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 9 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2022-12-13 12:03:35,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 12:03:35,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 12:03:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 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 12:03:35,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2022-12-13 12:03:35,156 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 10 [2022-12-13 12:03:35,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:03:35,156 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2022-12-13 12:03:35,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 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 12:03:35,156 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2022-12-13 12:03:35,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 12:03:35,160 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:03:35,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:03:35,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:35,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:35,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 12:03:35,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:03:35,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1162826544, now seen corresponding path program 1 times [2022-12-13 12:03:35,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:03:35,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067141829] [2022-12-13 12:03:35,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:03:35,367 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 12:03:35,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:03:35,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:35,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:03:35,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:03:35,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:03:36,339 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 12:03:36,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:03:36,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:03:36,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067141829] [2022-12-13 12:03:36,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067141829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:03:36,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:03:36,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:03:36,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604606928] [2022-12-13 12:03:36,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:03:36,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:03:36,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:03:36,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:03:36,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:03:36,340 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 12:03:38,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 12:03:39,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:03:39,183 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-12-13 12:03:39,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:03:39,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-13 12:03:39,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:03:39,184 INFO L225 Difference]: With dead ends: 15 [2022-12-13 12:03:39,184 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 12:03:39,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:03:39,185 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-13 12:03:39,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-12-13 12:03:39,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 12:03:39,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 12:03:39,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:03:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 12:03:39,186 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-13 12:03:39,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:03:39,186 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 12:03:39,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 12:03:39,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 12:03:39,187 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 12:03:39,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 12:03:39,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-12-13 12:03:39,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-13 12:03:39,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 0 [2022-12-13 12:03:39,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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 12:03:39,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 12:03:42,382 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-12-13 12:03:42,382 INFO L899 garLoopResultBuilder]: For program point L27-2(line 27) no Hoare annotation was computed. [2022-12-13 12:03:42,383 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 32) no Hoare annotation was computed. [2022-12-13 12:03:42,383 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 47 58) the Hoare annotation is: true [2022-12-13 12:03:42,383 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-12-13 12:03:42,383 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 12:03:42,383 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-12-13 12:03:42,384 INFO L895 garLoopResultBuilder]: At program point L32-3(lines 26 35) the Hoare annotation is: (and (exists ((|ULTIMATE.start_bugBrokenOut_~min#1| (_ FloatingPoint 8 24))) (and (fp.eq |ULTIMATE.start_bugBrokenOut_~min#1| ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))) (= |ULTIMATE.start_bugBrokenOut_~ulpdiff~1#1| ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode |ULTIMATE.start_bugBrokenOut_~min#1|) ((_ to_fp 11 53) currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))))))) (= currentRoundingMode roundNearestTiesToEven)) [2022-12-13 12:03:42,384 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 12:03:42,384 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2022-12-13 12:03:42,384 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 12:03:42,384 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2022-12-13 12:03:42,384 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2022-12-13 12:03:42,385 INFO L895 garLoopResultBuilder]: At program point L21-3(lines 16 24) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0)))) (and (fp.eq |ULTIMATE.start_bug_~min#1| .cse0) (= currentRoundingMode roundNearestTiesToEven) (exists ((|ULTIMATE.start_bug_~min#1| (_ FloatingPoint 8 24))) (and (fp.eq |ULTIMATE.start_bug_~min#1| .cse0) (= |ULTIMATE.start_bug_~ulpdiff~0#1| (fp.mul currentRoundingMode |ULTIMATE.start_bug_~min#1| ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))))))) [2022-12-13 12:03:42,385 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-12-13 12:03:42,385 INFO L899 garLoopResultBuilder]: For program point L17-2(line 17) no Hoare annotation was computed. [2022-12-13 12:03:42,385 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2022-12-13 12:03:42,385 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 12:03:42,385 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2022-12-13 12:03:42,386 INFO L902 garLoopResultBuilder]: At program point L42-3(lines 37 45) the Hoare annotation is: true [2022-12-13 12:03:42,386 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-12-13 12:03:42,386 INFO L899 garLoopResultBuilder]: For program point L38-2(line 38) no Hoare annotation was computed. [2022-12-13 12:03:42,386 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2022-12-13 12:03:42,389 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 12:03:42,390 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:03:42,397 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-12-13 12:03:42,397 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-12-13 12:03:42,397 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-12-13 12:03:42,400 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-12-13 12:03:42,400 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-12-13 12:03:42,400 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-12-13 12:03:42,401 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-12-13 12:03:42,401 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-12-13 12:03:42,402 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-12-13 12:03:42,402 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-12-13 12:03:42,402 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-12-13 12:03:42,402 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-12-13 12:03:42,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:03:42 BoogieIcfgContainer [2022-12-13 12:03:42,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:03:42,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:03:42,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:03:42,403 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:03:42,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:03:08" (3/4) ... [2022-12-13 12:03:42,405 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 12:03:42,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 12:03:42,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 12:03:42,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 12:03:42,412 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 12:03:42,428 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bug_~min#1 : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))) [2022-12-13 12:03:42,428 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start_bugBrokenOut_~min#1 : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min#1), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2022-12-13 12:03:42,433 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:03:42,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:03:42,433 INFO L158 Benchmark]: Toolchain (without parser) took 36849.35ms. Allocated memory is still 73.4MB. Free memory was 51.0MB in the beginning and 34.6MB in the end (delta: 16.4MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2022-12-13 12:03:42,433 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory is still 34.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:03:42,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.00ms. Allocated memory is still 73.4MB. Free memory was 50.9MB in the beginning and 38.1MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 12:03:42,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.56ms. Allocated memory is still 73.4MB. Free memory was 37.9MB in the beginning and 36.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:03:42,434 INFO L158 Benchmark]: Boogie Preprocessor took 17.88ms. Allocated memory is still 73.4MB. Free memory was 36.3MB in the beginning and 35.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:03:42,434 INFO L158 Benchmark]: RCFGBuilder took 2397.03ms. Allocated memory is still 73.4MB. Free memory was 35.0MB in the beginning and 44.7MB in the end (delta: -9.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-12-13 12:03:42,434 INFO L158 Benchmark]: TraceAbstraction took 34204.86ms. Allocated memory is still 73.4MB. Free memory was 44.0MB in the beginning and 37.5MB in the end (delta: 6.5MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2022-12-13 12:03:42,434 INFO L158 Benchmark]: Witness Printer took 29.80ms. Allocated memory is still 73.4MB. Free memory was 37.1MB in the beginning and 34.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:03:42,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory is still 34.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.00ms. Allocated memory is still 73.4MB. Free memory was 50.9MB in the beginning and 38.1MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.56ms. Allocated memory is still 73.4MB. Free memory was 37.9MB in the beginning and 36.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.88ms. Allocated memory is still 73.4MB. Free memory was 36.3MB in the beginning and 35.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2397.03ms. Allocated memory is still 73.4MB. Free memory was 35.0MB in the beginning and 44.7MB in the end (delta: -9.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * TraceAbstraction took 34204.86ms. Allocated memory is still 73.4MB. Free memory was 44.0MB in the beginning and 37.5MB in the end (delta: 6.5MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * Witness Printer took 29.80ms. Allocated memory is still 73.4MB. Free memory was 37.1MB in the beginning and 34.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 32]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 42]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 34.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 16.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 16.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 42 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 65 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 3 QuantifiedInterpolants, 163 SizeOfPredicates, 12 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant [2022-12-13 12:03:42,440 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-12-13 12:03:42,440 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-12-13 12:03:42,440 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-12-13 12:03:42,440 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-12-13 12:03:42,440 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-12-13 12:03:42,440 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] Derived loop invariant: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bug_~min#1 : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant [2022-12-13 12:03:42,441 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-12-13 12:03:42,441 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-12-13 12:03:42,441 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-12-13 12:03:42,441 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-12-13 12:03:42,441 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min#1,QUANTIFIED] [2022-12-13 12:03:42,441 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists ULTIMATE.start_bugBrokenOut_~min#1 : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min#1), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 12:03:42,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fad4e9-b178-4d3e-b3b4-8eed5ac567c1/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: TRUE