./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --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 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:41:04,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:41:04,722 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-28 20:41:04,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:41:04,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:41:04,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:41:04,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:41:04,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:41:04,760 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:41:04,760 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:41:04,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:41:04,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:41:04,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:41:04,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:41:04,763 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:41:04,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:41:04,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:41:04,764 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:41:04,765 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:41:04,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:41:04,766 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:41:04,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:41:04,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:41:04,767 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:41:04,767 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:41:04,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:41:04,768 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:41:04,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:41:04,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:41:04,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:41:04,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:41:04,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:41:04,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:41:04,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:41:04,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:41:04,771 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:41:04,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:41:04,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:41:04,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:41:04,771 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:41:04,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:41:04,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:41:04,772 INFO L153 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_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 [2023-11-28 20:41:05,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:41:05,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:41:05,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:41:05,036 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:41:05,037 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:41:05,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2023-11-28 20:41:07,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:41:07,991 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:41:07,992 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2023-11-28 20:41:07,999 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/data/530e9512d/93754cfb79f94f8ca8c2874a344bd7ed/FLAG6f592afe2 [2023-11-28 20:41:08,011 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/data/530e9512d/93754cfb79f94f8ca8c2874a344bd7ed [2023-11-28 20:41:08,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:41:08,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:41:08,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:41:08,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:41:08,020 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:41:08,021 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4619f9c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08, skipping insertion in model container [2023-11-28 20:41:08,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,042 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:41:08,181 WARN L240 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_92bdfd01-f4cf-43fc-91cd-f3947535c159/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2023-11-28 20:41:08,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:41:08,193 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:41:08,218 WARN L240 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_92bdfd01-f4cf-43fc-91cd-f3947535c159/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2023-11-28 20:41:08,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:41:08,233 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:41:08,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08 WrapperNode [2023-11-28 20:41:08,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:41:08,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:41:08,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:41:08,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:41:08,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,270 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2023-11-28 20:41:08,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:41:08,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:41:08,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:41:08,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:41:08,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,285 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,303 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-11-28 20:41:08,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,314 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,318 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:41:08,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:41:08,329 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:41:08,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:41:08,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (1/1) ... [2023-11-28 20:41:08,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:41:08,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:41:08,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:41:08,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:41:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:41:08,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:41:08,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 20:41:08,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 20:41:08,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-28 20:41:08,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:41:08,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-28 20:41:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-28 20:41:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-28 20:41:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-28 20:41:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 20:41:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 20:41:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-28 20:41:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-28 20:41:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-28 20:41:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-28 20:41:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-28 20:41:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-28 20:41:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:41:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:41:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-28 20:41:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-28 20:41:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-28 20:41:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-28 20:41:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:41:08,509 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:41:08,511 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:41:08,722 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:41:08,747 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:41:08,748 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-28 20:41:08,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:41:08 BoogieIcfgContainer [2023-11-28 20:41:08,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:41:08,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:41:08,752 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:41:08,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:41:08,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:41:08" (1/3) ... [2023-11-28 20:41:08,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d1eaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:41:08, skipping insertion in model container [2023-11-28 20:41:08,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:08" (2/3) ... [2023-11-28 20:41:08,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d1eaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:41:08, skipping insertion in model container [2023-11-28 20:41:08,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:41:08" (3/3) ... [2023-11-28 20:41:08,758 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a.c [2023-11-28 20:41:08,778 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:41:08,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:41:08,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:41:08,826 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=LoopHeads, 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;@6551652c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:41:08,826 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:41:08,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.71875) internal successors, (55), 33 states have internal predecessors, (55), 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) [2023-11-28 20:41:08,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-28 20:41:08,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:41:08,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:41:08,839 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:41:08,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:41:08,844 INFO L85 PathProgramCache]: Analyzing trace with hash 566501713, now seen corresponding path program 1 times [2023-11-28 20:41:08,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:41:08,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333478067] [2023-11-28 20:41:08,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:41:08,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:41:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:41:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:41:08,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:41:08,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333478067] [2023-11-28 20:41:08,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333478067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:41:09,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:41:09,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:41:09,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635185353] [2023-11-28 20:41:09,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:41:09,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 20:41:09,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:41:09,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 20:41:09,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:41:09,031 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.71875) internal successors, (55), 33 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:09,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:41:09,054 INFO L93 Difference]: Finished difference Result 67 states and 109 transitions. [2023-11-28 20:41:09,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 20:41:09,056 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-28 20:41:09,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:41:09,063 INFO L225 Difference]: With dead ends: 67 [2023-11-28 20:41:09,064 INFO L226 Difference]: Without dead ends: 32 [2023-11-28 20:41:09,066 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 [2023-11-28 20:41:09,069 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:41:09,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:41:09,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-28 20:41:09,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-28 20:41:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:09,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 46 transitions. [2023-11-28 20:41:09,100 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 46 transitions. Word has length 10 [2023-11-28 20:41:09,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:41:09,100 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 46 transitions. [2023-11-28 20:41:09,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:09,101 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2023-11-28 20:41:09,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-28 20:41:09,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:41:09,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:41:09,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:41:09,102 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:41:09,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:41:09,103 INFO L85 PathProgramCache]: Analyzing trace with hash 820943511, now seen corresponding path program 1 times [2023-11-28 20:41:09,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:41:09,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059171553] [2023-11-28 20:41:09,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:41:09,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:41:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:41:09,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:41:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:41:09,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:41:09,261 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 20:41:09,263 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 20:41:09,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:41:09,269 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-28 20:41:09,272 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:41:09,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:41:09 BoogieIcfgContainer [2023-11-28 20:41:09,294 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:41:09,295 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:41:09,295 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:41:09,295 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:41:09,296 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:41:08" (3/4) ... [2023-11-28 20:41:09,298 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 20:41:09,299 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:41:09,300 INFO L158 Benchmark]: Toolchain (without parser) took 1285.16ms. Allocated memory is still 161.5MB. Free memory was 127.7MB in the beginning and 123.0MB in the end (delta: 4.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-11-28 20:41:09,300 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:41:09,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.63ms. Allocated memory is still 161.5MB. Free memory was 127.7MB in the beginning and 116.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-28 20:41:09,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.39ms. Allocated memory is still 161.5MB. Free memory was 116.3MB in the beginning and 114.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:41:09,302 INFO L158 Benchmark]: Boogie Preprocessor took 56.40ms. Allocated memory is still 161.5MB. Free memory was 114.8MB in the beginning and 112.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:41:09,302 INFO L158 Benchmark]: RCFGBuilder took 420.15ms. Allocated memory is still 161.5MB. Free memory was 112.1MB in the beginning and 95.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-28 20:41:09,303 INFO L158 Benchmark]: TraceAbstraction took 542.78ms. Allocated memory is still 161.5MB. Free memory was 94.3MB in the beginning and 123.0MB in the end (delta: -28.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:41:09,303 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 161.5MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:41:09,306 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.63ms. Allocated memory is still 161.5MB. Free memory was 127.7MB in the beginning and 116.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.39ms. Allocated memory is still 161.5MB. Free memory was 116.3MB in the beginning and 114.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.40ms. Allocated memory is still 161.5MB. Free memory was 114.8MB in the beginning and 112.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 420.15ms. Allocated memory is still 161.5MB. Free memory was 112.1MB in the beginning and 95.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 542.78ms. Allocated memory is still 161.5MB. Free memory was 94.3MB in the beginning and 123.0MB in the end (delta: -28.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 161.5MB. Free memory is still 123.0MB. 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: 82]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; [L77] float x = 1.0f / 0.0f; [L78] CALL, EXPR floor_float(x) [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000011, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000011] [L19] ieee_float_shape_type gf_u; [L20] EXPR gf_u.value = (x) [L21] EXPR gf_u.word [L21] EXPR (i0) = gf_u.word [L18-L22] { ieee_float_shape_type gf_u; gf_u.value = (x); (i0) = gf_u.word; } VAL [\old(x)=1000000000000000000000000000011, huge_floor=1000000000000000000000000000000, i0=2147483647, x=1000000000000000000000000000011] [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000011, huge_floor=1000000000000000000000000000000, i0=2147483647, i=2147483647, j0=128, x=1000000000000000000000000000011] [L25] COND FALSE !(j0 < 23) VAL [\old(x)=1000000000000000000000000000011, huge_floor=1000000000000000000000000000000, i0=2147483647, i=2147483647, j0=128, x=1000000000000000000000000000011] [L45] COND TRUE !((ix) < 0x7f800000L) [L46] return x + x; VAL [\old(x)=1000000000000000000000000000011, huge_floor=1000000000000000000000000000000, i0=2147483647, i=2147483647, j0=128, x=1000000000000000000000000000011] [L78] RET, EXPR floor_float(x) [L78] float res = floor_float(x); [L81] CALL, EXPR isinf_float(res) [L60] __int32_t ix; VAL [\old(x)=1000000000000000000000000000010, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000010] [L62] ieee_float_shape_type gf_u; [L63] EXPR gf_u.value = (x) [L64] EXPR gf_u.word [L64] EXPR (ix) = gf_u.word [L61-L65] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=1000000000000000000000000000010, huge_floor=1000000000000000000000000000000, ix=-8388607, x=1000000000000000000000000000010] [L66] ix &= 0x7fffffff [L67] return ((ix) == 0x7f800000L); [L81] RET, EXPR isinf_float(res) [L81] COND TRUE !isinf_float(res) [L82] reach_error() VAL [huge_floor=1000000000000000000000000000000, res=1000000000000000000000000000010, x=1000000000000000000000000000011] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 45 mSDtfsCounter, 3 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=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-28 20:41:09,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --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 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:41:11,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:41:11,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-28 20:41:11,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:41:11,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:41:11,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:41:11,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:41:11,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:41:11,369 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:41:11,369 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:41:11,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:41:11,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:41:11,372 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:41:11,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:41:11,373 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:41:11,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:41:11,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:41:11,374 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:41:11,375 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:41:11,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:41:11,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:41:11,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:41:11,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:41:11,377 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:41:11,378 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 20:41:11,378 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 20:41:11,379 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:41:11,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:41:11,380 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:41:11,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:41:11,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:41:11,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:41:11,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:41:11,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:41:11,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:41:11,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:41:11,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:41:11,383 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 20:41:11,383 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 20:41:11,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:41:11,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:41:11,384 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:41:11,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:41:11,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:41:11,384 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 20:41:11,385 INFO L153 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_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 [2023-11-28 20:41:11,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:41:11,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:41:11,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:41:11,707 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:41:11,707 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:41:11,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2023-11-28 20:41:14,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:41:14,819 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:41:14,820 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2023-11-28 20:41:14,828 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/data/306acdd49/101403cf5e03465884820787fea8e256/FLAG981d1ae3c [2023-11-28 20:41:14,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/data/306acdd49/101403cf5e03465884820787fea8e256 [2023-11-28 20:41:14,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:41:14,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:41:14,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:41:14,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:41:14,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:41:14,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:41:14" (1/1) ... [2023-11-28 20:41:14,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d4afe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:14, skipping insertion in model container [2023-11-28 20:41:14,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:41:14" (1/1) ... [2023-11-28 20:41:14,879 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:41:15,055 WARN L240 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_92bdfd01-f4cf-43fc-91cd-f3947535c159/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2023-11-28 20:41:15,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:41:15,073 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:41:15,098 WARN L240 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_92bdfd01-f4cf-43fc-91cd-f3947535c159/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2023-11-28 20:41:15,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:41:15,117 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:41:15,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15 WrapperNode [2023-11-28 20:41:15,117 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:41:15,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:41:15,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:41:15,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:41:15,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,161 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2023-11-28 20:41:15,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:41:15,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:41:15,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:41:15,163 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:41:15,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,179 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,195 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-11-28 20:41:15,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,210 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,213 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:41:15,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:41:15,221 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:41:15,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:41:15,222 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (1/1) ... [2023-11-28 20:41:15,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:41:15,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:41:15,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:41:15,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:41:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:41:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 20:41:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-28 20:41:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-28 20:41:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-28 20:41:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:41:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-28 20:41:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-28 20:41:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-11-28 20:41:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-11-28 20:41:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-28 20:41:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-28 20:41:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-28 20:41:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-28 20:41:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:41:15,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:41:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-28 20:41:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-28 20:41:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-11-28 20:41:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-11-28 20:41:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-28 20:41:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-28 20:41:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-28 20:41:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-28 20:41:15,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:41:15,404 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:41:15,406 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:41:15,916 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:41:15,949 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:41:15,950 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-28 20:41:15,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:41:15 BoogieIcfgContainer [2023-11-28 20:41:15,950 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:41:15,953 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:41:15,953 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:41:15,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:41:15,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:41:14" (1/3) ... [2023-11-28 20:41:15,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dcd6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:41:15, skipping insertion in model container [2023-11-28 20:41:15,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:41:15" (2/3) ... [2023-11-28 20:41:15,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dcd6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:41:15, skipping insertion in model container [2023-11-28 20:41:15,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:41:15" (3/3) ... [2023-11-28 20:41:15,959 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a.c [2023-11-28 20:41:15,987 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:41:15,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:41:16,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:41:16,042 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=LoopHeads, 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;@2a4bcb04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:41:16,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:41:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 25 states have internal predecessors, (41), 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) [2023-11-28 20:41:16,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-28 20:41:16,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:41:16,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:41:16,053 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:41:16,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:41:16,059 INFO L85 PathProgramCache]: Analyzing trace with hash 845941010, now seen corresponding path program 1 times [2023-11-28 20:41:16,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:41:16,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32588085] [2023-11-28 20:41:16,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:41:16,076 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 [2023-11-28 20:41:16,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:41:16,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 20:41:16,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 20:41:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:41:16,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 20:41:16,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:41:16,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:41:16,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:41:16,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:41:16,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32588085] [2023-11-28 20:41:16,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32588085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:41:16,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:41:16,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:41:16,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405766085] [2023-11-28 20:41:16,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:41:16,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 20:41:16,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:41:16,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 20:41:16,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:41:16,286 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 25 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:16,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:41:16,312 INFO L93 Difference]: Finished difference Result 51 states and 81 transitions. [2023-11-28 20:41:16,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 20:41:16,314 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-28 20:41:16,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:41:16,324 INFO L225 Difference]: With dead ends: 51 [2023-11-28 20:41:16,324 INFO L226 Difference]: Without dead ends: 24 [2023-11-28 20:41:16,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:41:16,330 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:41:16,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:41:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-28 20:41:16,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-28 20:41:16,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:16,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2023-11-28 20:41:16,365 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 32 transitions. Word has length 10 [2023-11-28 20:41:16,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:41:16,365 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 32 transitions. [2023-11-28 20:41:16,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2023-11-28 20:41:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-28 20:41:16,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:41:16,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:41:16,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 20:41:16,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 20:41:16,571 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:41:16,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:41:16,571 INFO L85 PathProgramCache]: Analyzing trace with hash 718747328, now seen corresponding path program 1 times [2023-11-28 20:41:16,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:41:16,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728669796] [2023-11-28 20:41:16,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:41:16,573 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 [2023-11-28 20:41:16,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:41:16,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 20:41:16,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 20:41:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:41:16,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-28 20:41:16,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:41:16,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:41:16,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:41:16,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:41:16,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728669796] [2023-11-28 20:41:16,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728669796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:41:16,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:41:16,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:41:16,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119016221] [2023-11-28 20:41:16,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:41:16,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:41:16,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:41:16,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:41:16,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:41:16,899 INFO L87 Difference]: Start difference. First operand 24 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:17,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:41:17,378 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2023-11-28 20:41:17,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:41:17,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-28 20:41:17,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:41:17,380 INFO L225 Difference]: With dead ends: 39 [2023-11-28 20:41:17,380 INFO L226 Difference]: Without dead ends: 27 [2023-11-28 20:41:17,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:41:17,382 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 54 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:41:17,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 27 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 20:41:17,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-28 20:41:17,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2023-11-28 20:41:17,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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) [2023-11-28 20:41:17,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-11-28 20:41:17,387 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2023-11-28 20:41:17,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:41:17,387 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-11-28 20:41:17,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:17,387 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-11-28 20:41:17,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-28 20:41:17,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:41:17,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:41:17,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 20:41:17,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 20:41:17,589 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:41:17,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:41:17,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1056260034, now seen corresponding path program 1 times [2023-11-28 20:41:17,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:41:17,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546248972] [2023-11-28 20:41:17,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:41:17,591 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 [2023-11-28 20:41:17,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:41:17,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 20:41:17,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 20:41:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:41:17,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 20:41:17,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:41:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:41:17,918 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:41:17,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:41:17,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546248972] [2023-11-28 20:41:17,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1546248972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:41:17,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:41:17,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-28 20:41:17,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359881134] [2023-11-28 20:41:17,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:41:17,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:41:17,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:41:17,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:41:17,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:41:17,921 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:18,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:41:18,352 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-11-28 20:41:18,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:41:18,353 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-28 20:41:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:41:18,354 INFO L225 Difference]: With dead ends: 30 [2023-11-28 20:41:18,355 INFO L226 Difference]: Without dead ends: 22 [2023-11-28 20:41:18,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:41:18,357 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 19 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:41:18,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 83 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 20:41:18,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-28 20:41:18,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-28 20:41:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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) [2023-11-28 20:41:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2023-11-28 20:41:18,363 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 12 [2023-11-28 20:41:18,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:41:18,364 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2023-11-28 20:41:18,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:41:18,364 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-11-28 20:41:18,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-28 20:41:18,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:41:18,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:41:18,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 20:41:18,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 20:41:18,566 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:41:18,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:41:18,567 INFO L85 PathProgramCache]: Analyzing trace with hash -276566365, now seen corresponding path program 1 times [2023-11-28 20:41:18,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:41:18,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745329653] [2023-11-28 20:41:18,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:41:18,567 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 [2023-11-28 20:41:18,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:41:18,568 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 20:41:18,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 20:41:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:41:18,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 20:41:18,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:41:18,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:41:18,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:41:18,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:41:18,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745329653] [2023-11-28 20:41:18,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745329653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:41:18,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:41:18,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:41:18,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930369791] [2023-11-28 20:41:18,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:41:18,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:41:18,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:41:18,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:41:18,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:41:18,822 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2023-11-28 20:41:18,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:41:18,934 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2023-11-28 20:41:18,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:41:18,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) Word has length 16 [2023-11-28 20:41:18,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:41:18,935 INFO L225 Difference]: With dead ends: 22 [2023-11-28 20:41:18,935 INFO L226 Difference]: Without dead ends: 0 [2023-11-28 20:41:18,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:41:18,937 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:41:18,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:41:18,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-28 20:41:18,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-28 20:41:18,939 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) [2023-11-28 20:41:18,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-28 20:41:18,939 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2023-11-28 20:41:18,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:41:18,939 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:41:18,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2023-11-28 20:41:18,940 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-28 20:41:18,940 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-28 20:41:18,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 20:41:18,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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)] Forceful destruction successful, exit code 0 [2023-11-28 20:41:19,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 20:41:19,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-28 20:41:19,179 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 33) no Hoare annotation was computed. [2023-11-28 20:41:19,180 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 84) no Hoare annotation was computed. [2023-11-28 20:41:19,180 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 70 87) no Hoare annotation was computed. [2023-11-28 20:41:19,180 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2023-11-28 20:41:19,180 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 32) no Hoare annotation was computed. [2023-11-28 20:41:19,180 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2023-11-28 20:41:19,180 INFO L895 garLoopResultBuilder]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse1 .cse1)))) (and (= |ULTIMATE.start_floor_float_#res#1| .cse0) (= .cse0 |ULTIMATE.start_isinf_float_~x#1|))) [2023-11-28 20:41:19,181 INFO L899 garLoopResultBuilder]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2023-11-28 20:41:19,181 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2023-11-28 20:41:19,181 INFO L899 garLoopResultBuilder]: For program point floor_float_returnLabel#1(lines 15 56) no Hoare annotation was computed. [2023-11-28 20:41:19,181 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2023-11-28 20:41:19,181 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 48) no Hoare annotation was computed. [2023-11-28 20:41:19,181 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-28 20:41:19,181 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 49) no Hoare annotation was computed. [2023-11-28 20:41:19,181 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 54) no Hoare annotation was computed. [2023-11-28 20:41:19,182 INFO L895 garLoopResultBuilder]: At program point L50-1(lines 50 54) the Hoare annotation is: false [2023-11-28 20:41:19,182 INFO L899 garLoopResultBuilder]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2023-11-28 20:41:19,182 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-28 20:41:19,182 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 42) no Hoare annotation was computed. [2023-11-28 20:41:19,182 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2023-11-28 20:41:19,182 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 43) no Hoare annotation was computed. [2023-11-28 20:41:19,182 INFO L899 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2023-11-28 20:41:19,182 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= |ULTIMATE.start_floor_float_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-28 20:41:19,183 INFO L899 garLoopResultBuilder]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2023-11-28 20:41:19,183 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2023-11-28 20:41:19,183 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2023-11-28 20:41:19,186 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-28 20:41:19,188 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:41:19,198 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-28 20:41:19,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-28 20:41:19,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-28 20:41:19,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:41:19 BoogieIcfgContainer [2023-11-28 20:41:19,200 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:41:19,200 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:41:19,200 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:41:19,201 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:41:19,201 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:41:15" (3/4) ... [2023-11-28 20:41:19,202 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 20:41:19,208 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-28 20:41:19,209 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-28 20:41:19,209 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-28 20:41:19,209 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 20:41:19,290 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 20:41:19,291 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 20:41:19,291 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:41:19,292 INFO L158 Benchmark]: Toolchain (without parser) took 4444.66ms. Allocated memory is still 113.2MB. Free memory was 89.6MB in the beginning and 44.4MB in the end (delta: 45.2MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2023-11-28 20:41:19,292 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 112.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:41:19,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.33ms. Allocated memory is still 113.2MB. Free memory was 89.6MB in the beginning and 77.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-28 20:41:19,293 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.21ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 75.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:41:19,293 INFO L158 Benchmark]: Boogie Preprocessor took 58.01ms. Allocated memory is still 113.2MB. Free memory was 75.9MB in the beginning and 73.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:41:19,294 INFO L158 Benchmark]: RCFGBuilder took 729.09ms. Allocated memory is still 113.2MB. Free memory was 73.2MB in the beginning and 90.5MB in the end (delta: -17.3MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-11-28 20:41:19,294 INFO L158 Benchmark]: TraceAbstraction took 3247.30ms. Allocated memory is still 113.2MB. Free memory was 90.2MB in the beginning and 49.3MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2023-11-28 20:41:19,294 INFO L158 Benchmark]: Witness Printer took 90.86ms. Allocated memory is still 113.2MB. Free memory was 49.3MB in the beginning and 44.4MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-28 20:41:19,297 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 112.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.33ms. Allocated memory is still 113.2MB. Free memory was 89.6MB in the beginning and 77.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.21ms. Allocated memory is still 113.2MB. Free memory was 77.7MB in the beginning and 75.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.01ms. Allocated memory is still 113.2MB. Free memory was 75.9MB in the beginning and 73.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 729.09ms. Allocated memory is still 113.2MB. Free memory was 73.2MB in the beginning and 90.5MB in the end (delta: -17.3MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3247.30ms. Allocated memory is still 113.2MB. Free memory was 90.2MB in the beginning and 49.3MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * Witness Printer took 90.86ms. Allocated memory is still 113.2MB. Free memory was 49.3MB in the beginning and 44.4MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * 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: 82]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 59 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 21, 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 46 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 9 QuantifiedInterpolants, 313 SizeOfPredicates, 25 NumberOfNonLiveVariables, 209 ConjunctsInSsa, 35 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 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-28 20:41:19,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92bdfd01-f4cf-43fc-91cd-f3947535c159/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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