./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0931.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0931.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme --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 91b175b05d28541db58c7e93ed627b64b4bd09588286aa65a419fecf4760f469 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:09,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:09,643 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:58:09,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:09,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:09,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:09,692 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:09,692 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:09,693 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:58:09,698 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:58:09,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:09,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:09,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:09,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:09,703 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:09,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:09,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:58:09,705 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:09,705 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:58:09,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:09,706 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:09,706 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:58:09,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:09,707 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:58:09,708 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:09,708 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:58:09,708 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:09,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:09,710 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:09,710 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:58:09,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:09,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:09,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:09,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:09,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:58:09,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:58:09,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:58:09,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:09,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:09,714 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:58:09,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:09,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:09,715 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_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91b175b05d28541db58c7e93ed627b64b4bd09588286aa65a419fecf4760f469 [2023-11-26 11:58:10,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:10,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:10,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:10,089 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:10,089 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:10,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/float_req_bl_0931.c [2023-11-26 11:58:13,224 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:13,432 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:13,432 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/sv-benchmarks/c/float-newlib/float_req_bl_0931.c [2023-11-26 11:58:13,445 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/data/e7f5245b2/0a8a3f9c6b884a4080badb32d09e9439/FLAGe0c28eb0a [2023-11-26 11:58:13,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/data/e7f5245b2/0a8a3f9c6b884a4080badb32d09e9439 [2023-11-26 11:58:13,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:13,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:13,466 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:13,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:13,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:13,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d65170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13, skipping insertion in model container [2023-11-26 11:58:13,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,506 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:13,699 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_6e5056c9-33a5-4ced-b17d-7b12753946c6/sv-benchmarks/c/float-newlib/float_req_bl_0931.c[3146,3159] [2023-11-26 11:58:13,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:13,715 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:13,756 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_6e5056c9-33a5-4ced-b17d-7b12753946c6/sv-benchmarks/c/float-newlib/float_req_bl_0931.c[3146,3159] [2023-11-26 11:58:13,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:13,774 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:13,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13 WrapperNode [2023-11-26 11:58:13,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:13,776 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:13,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:13,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:13,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,828 INFO L138 Inliner]: procedures = 17, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 200 [2023-11-26 11:58:13,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:13,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:13,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:13,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:13,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,848 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,875 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2023-11-26 11:58:13,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,876 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,901 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:13,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:13,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:13,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:13,919 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (1/1) ... [2023-11-26 11:58:13,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:13,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:13,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:13,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:14,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:58:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:58:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:58:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:58:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:58:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:58:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:58:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-26 11:58:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-26 11:58:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-26 11:58:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-26 11:58:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-26 11:58:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:58:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:58:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:58:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:58:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:58:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-26 11:58:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-26 11:58:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-26 11:58:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-26 11:58:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-26 11:58:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:58:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:58:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:58:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:58:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:58:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:58:14,188 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:14,190 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:58:14,538 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:58:14,617 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:58:14,617 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-26 11:58:14,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:14 BoogieIcfgContainer [2023-11-26 11:58:14,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:58:14,653 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:58:14,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:58:14,657 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:58:14,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:58:13" (1/3) ... [2023-11-26 11:58:14,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772bd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:14, skipping insertion in model container [2023-11-26 11:58:14,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:13" (2/3) ... [2023-11-26 11:58:14,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772bd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:14, skipping insertion in model container [2023-11-26 11:58:14,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:14" (3/3) ... [2023-11-26 11:58:14,661 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0931.c [2023-11-26 11:58:14,685 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:58:14,685 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:58:14,751 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:58:14,761 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;@50940ded, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:58:14,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:58:14,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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) [2023-11-26 11:58:14,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-26 11:58:14,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:14,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:14,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:14,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:14,783 INFO L85 PathProgramCache]: Analyzing trace with hash 660815018, now seen corresponding path program 1 times [2023-11-26 11:58:14,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:14,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708692197] [2023-11-26 11:58:14,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:14,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:15,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:15,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:15,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708692197] [2023-11-26 11:58:15,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708692197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:15,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:15,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:15,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786150848] [2023-11-26 11:58:15,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:15,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:58:15,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:15,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:58:15,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:58:15,086 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2023-11-26 11:58:15,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:15,122 INFO L93 Difference]: Finished difference Result 83 states and 139 transitions. [2023-11-26 11:58:15,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:58:15,125 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2023-11-26 11:58:15,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:15,135 INFO L225 Difference]: With dead ends: 83 [2023-11-26 11:58:15,135 INFO L226 Difference]: Without dead ends: 40 [2023-11-26 11:58:15,139 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 [2023-11-26 11:58:15,143 INFO L413 NwaCegarLoop]: 57 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, 57 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 [2023-11-26 11:58:15,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:15,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-26 11:58:15,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-26 11:58:15,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.4871794871794872) internal successors, (58), 39 states have internal predecessors, (58), 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) [2023-11-26 11:58:15,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 58 transitions. [2023-11-26 11:58:15,195 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 58 transitions. Word has length 9 [2023-11-26 11:58:15,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:15,196 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 58 transitions. [2023-11-26 11:58:15,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2023-11-26 11:58:15,196 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2023-11-26 11:58:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 11:58:15,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:15,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:15,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:58:15,200 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:15,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:15,201 INFO L85 PathProgramCache]: Analyzing trace with hash -2132777999, now seen corresponding path program 1 times [2023-11-26 11:58:15,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:15,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433652156] [2023-11-26 11:58:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:15,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:15,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:58:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:58:15,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:58:15,393 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:58:15,395 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:58:15,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:58:15,401 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 11:58:15,405 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:58:15,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:58:15 BoogieIcfgContainer [2023-11-26 11:58:15,457 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:58:15,458 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:58:15,458 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:58:15,458 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:58:15,459 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:14" (3/4) ... [2023-11-26 11:58:15,461 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:58:15,462 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:58:15,462 INFO L158 Benchmark]: Toolchain (without parser) took 1997.76ms. Allocated memory is still 159.4MB. Free memory was 114.4MB in the beginning and 96.5MB in the end (delta: 17.9MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2023-11-26 11:58:15,463 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:15,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.84ms. Allocated memory is still 159.4MB. Free memory was 114.4MB in the beginning and 101.4MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 11:58:15,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.03ms. Allocated memory is still 159.4MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:58:15,465 INFO L158 Benchmark]: Boogie Preprocessor took 87.58ms. Allocated memory is still 159.4MB. Free memory was 99.3MB in the beginning and 96.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:58:15,466 INFO L158 Benchmark]: RCFGBuilder took 700.08ms. Allocated memory is still 159.4MB. Free memory was 96.3MB in the beginning and 127.2MB in the end (delta: -30.9MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2023-11-26 11:58:15,466 INFO L158 Benchmark]: TraceAbstraction took 803.75ms. Allocated memory is still 159.4MB. Free memory was 126.6MB in the beginning and 96.5MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-26 11:58:15,467 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 159.4MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:15,473 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.84ms. Allocated memory is still 159.4MB. Free memory was 114.4MB in the beginning and 101.4MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.03ms. Allocated memory is still 159.4MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.58ms. Allocated memory is still 159.4MB. Free memory was 99.3MB in the beginning and 96.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 700.08ms. Allocated memory is still 159.4MB. Free memory was 96.3MB in the beginning and 127.2MB in the end (delta: -30.9MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * TraceAbstraction took 803.75ms. Allocated memory is still 159.4MB. Free memory was 126.6MB in the beginning and 96.5MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 159.4MB. Free memory is still 96.5MB. 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: 123]: 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 34. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L118] float x = 1.0f / 0.0f; [L119] CALL, EXPR __ieee754_logf(x) [L23] float hfsq, f, s, z, R, w, t1, t2, dk; [L24] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=2147483658, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2147483658, zero_log=0] [L27] ieee_float_shape_type gf_u; [L28] EXPR gf_u.value = (x) [L29] EXPR gf_u.word [L29] EXPR (ix) = gf_u.word [L26-L30] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=2147483658, ix=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2147483658, zero_log=0] [L32] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=2147483658, ix=0, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2147483658, zero_log=0] [L33] COND TRUE ((ix & 0x7fffffff) == 0) [L34] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=2147483658, ix=0, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2147483658, zero_log=0] [L119] RET, EXPR __ieee754_logf(x) [L119] float res = __ieee754_logf(x); [L122] CALL, EXPR isinf_float(res) [L102] __int32_t ix; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=2147483659, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2147483659, zero_log=0] [L104] ieee_float_shape_type gf_u; [L105] EXPR gf_u.value = (x) [L106] EXPR gf_u.word [L106] EXPR (ix) = gf_u.word [L103-L107] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=2147483659, ix=-2147483648, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2147483659, zero_log=0] [L108] ix &= 0x7fffffff [L109] return ((ix) == 0x7f800000L); [L122] RET, EXPR isinf_float(res) [L122] COND TRUE !isinf_float(res) [L123] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=2147483659, two25_log=33554432, x=2147483658, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 57 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, 57 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=42occurred 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2023-11-26 11:58:15,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0931.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme --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 91b175b05d28541db58c7e93ed627b64b4bd09588286aa65a419fecf4760f469 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:18,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:18,564 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 11:58:18,574 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:18,575 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:18,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:18,625 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:18,626 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:18,627 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:58:18,632 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:58:18,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:18,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:18,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:18,636 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:18,637 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:18,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:18,638 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:58:18,639 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:18,639 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:18,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:18,640 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:58:18,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:18,641 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:58:18,641 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:58:18,642 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:58:18,642 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:58:18,643 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:18,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:58:18,644 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:18,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:18,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:18,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:58:18,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:18,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:18,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:18,648 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:18,649 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:58:18,649 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:58:18,649 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:58:18,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:18,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:18,650 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:58:18,651 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:18,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:18,652 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:58:18,652 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_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91b175b05d28541db58c7e93ed627b64b4bd09588286aa65a419fecf4760f469 [2023-11-26 11:58:19,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:19,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:19,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:19,115 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:19,115 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:19,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-newlib/float_req_bl_0931.c [2023-11-26 11:58:22,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:22,763 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:22,763 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/sv-benchmarks/c/float-newlib/float_req_bl_0931.c [2023-11-26 11:58:22,772 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/data/8fba55f13/432cdd7875284d558bea8f64a7ac6527/FLAGfcc216bc1 [2023-11-26 11:58:22,788 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/data/8fba55f13/432cdd7875284d558bea8f64a7ac6527 [2023-11-26 11:58:22,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:22,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:22,795 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:22,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:22,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:22,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:22" (1/1) ... [2023-11-26 11:58:22,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac60a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:22, skipping insertion in model container [2023-11-26 11:58:22,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:22" (1/1) ... [2023-11-26 11:58:22,842 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:23,051 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_6e5056c9-33a5-4ced-b17d-7b12753946c6/sv-benchmarks/c/float-newlib/float_req_bl_0931.c[3146,3159] [2023-11-26 11:58:23,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:23,073 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:23,132 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_6e5056c9-33a5-4ced-b17d-7b12753946c6/sv-benchmarks/c/float-newlib/float_req_bl_0931.c[3146,3159] [2023-11-26 11:58:23,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:23,165 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:23,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23 WrapperNode [2023-11-26 11:58:23,166 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:23,167 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:23,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:23,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:23,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,205 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,254 INFO L138 Inliner]: procedures = 20, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 156 [2023-11-26 11:58:23,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:23,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:23,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:23,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:23,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,327 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2023-11-26 11:58:23,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,340 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:23,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:23,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:23,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:23,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (1/1) ... [2023-11-26 11:58:23,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:23,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:23,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:23,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:58:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 11:58:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 11:58:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 11:58:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 11:58:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-26 11:58:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:58:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-26 11:58:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-26 11:58:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-11-26 11:58:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-11-26 11:58:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-11-26 11:58:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 11:58:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 11:58:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 11:58:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 11:58:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-26 11:58:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:23,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-26 11:58:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-26 11:58:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-11-26 11:58:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-11-26 11:58:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-11-26 11:58:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 11:58:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 11:58:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 11:58:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 11:58:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-26 11:58:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:58:23,713 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:23,718 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:58:57,733 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:58:57,764 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:58:57,765 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-26 11:58:57,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:57 BoogieIcfgContainer [2023-11-26 11:58:57,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:58:57,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:58:57,772 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:58:57,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:58:57,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:58:22" (1/3) ... [2023-11-26 11:58:57,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd48f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:57, skipping insertion in model container [2023-11-26 11:58:57,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:23" (2/3) ... [2023-11-26 11:58:57,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd48f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:57, skipping insertion in model container [2023-11-26 11:58:57,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:57" (3/3) ... [2023-11-26 11:58:57,782 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0931.c [2023-11-26 11:58:57,798 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:58:57,798 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:58:57,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:58:57,851 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;@4eb5dbb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:58:57,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:58:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.75) internal successors, (49), 29 states have internal predecessors, (49), 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) [2023-11-26 11:58:57,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-26 11:58:57,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:57,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:57,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:57,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:57,870 INFO L85 PathProgramCache]: Analyzing trace with hash 109542722, now seen corresponding path program 1 times [2023-11-26 11:58:57,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:58:57,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652374096] [2023-11-26 11:58:57,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:57,882 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 [2023-11-26 11:58:57,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:58:57,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:58:57,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:58:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:58,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:58:58,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:58,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:58,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:58,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:58:58,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652374096] [2023-11-26 11:58:58,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652374096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:58,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:58,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:58:58,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038446076] [2023-11-26 11:58:58,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:58,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:58:58,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:58:58,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:58:58,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:58:58,526 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.75) internal successors, (49), 29 states have internal predecessors, (49), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2023-11-26 11:58:58,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:58:58,599 INFO L93 Difference]: Finished difference Result 59 states and 97 transitions. [2023-11-26 11:58:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:58:58,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2023-11-26 11:58:58,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:58:58,611 INFO L225 Difference]: With dead ends: 59 [2023-11-26 11:58:58,612 INFO L226 Difference]: Without dead ends: 28 [2023-11-26 11:58:58,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:58:58,619 INFO L413 NwaCegarLoop]: 37 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, 37 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 [2023-11-26 11:58:58,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:58:58,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-26 11:58:58,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-26 11:58:58,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 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) [2023-11-26 11:58:58,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2023-11-26 11:58:58,662 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 9 [2023-11-26 11:58:58,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:58:58,662 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2023-11-26 11:58:58,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2023-11-26 11:58:58,663 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2023-11-26 11:58:58,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 11:58:58,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:58:58,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:58,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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)] Ended with exit code 0 [2023-11-26 11:58:58,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:58:58,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:58:58,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:58,886 INFO L85 PathProgramCache]: Analyzing trace with hash -423960259, now seen corresponding path program 1 times [2023-11-26 11:58:58,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:58:58,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311096615] [2023-11-26 11:58:58,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:58,887 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 [2023-11-26 11:58:58,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:58:58,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:58:58,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:58:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:59,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:58:59,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:58:59,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-26 11:58:59,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2023-11-26 11:58:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:58:59,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:58:59,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:58:59,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311096615] [2023-11-26 11:58:59,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311096615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:59,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:59,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:58:59,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321635355] [2023-11-26 11:58:59,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:59,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:58:59,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:58:59,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:58:59,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:58:59,785 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:00,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:00,150 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2023-11-26 11:59:00,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:00,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-26 11:59:00,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:00,152 INFO L225 Difference]: With dead ends: 35 [2023-11-26 11:59:00,152 INFO L226 Difference]: Without dead ends: 14 [2023-11-26 11:59:00,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:00,154 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:00,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:59:00,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-26 11:59:00,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-26 11:59:00,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 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) [2023-11-26 11:59:00,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2023-11-26 11:59:00,159 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 11 [2023-11-26 11:59:00,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:00,159 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2023-11-26 11:59:00,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:59:00,160 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2023-11-26 11:59:00,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 11:59:00,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:00,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:00,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:00,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:59:00,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:59:00,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:00,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1231630622, now seen corresponding path program 1 times [2023-11-26 11:59:00,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:59:00,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821680444] [2023-11-26 11:59:00,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:00,376 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 [2023-11-26 11:59:00,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:59:00,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 11:59:00,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:59:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:00,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-26 11:59:00,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:01,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-26 11:59:01,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2023-11-26 11:59:01,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:59:01,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:01,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:59:01,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821680444] [2023-11-26 11:59:01,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821680444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:01,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:01,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:59:01,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067522846] [2023-11-26 11:59:01,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:01,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:59:01,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:59:01,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:59:01,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:01,517 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 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) [2023-11-26 11:59:01,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:01,988 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2023-11-26 11:59:01,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:01,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2023-11-26 11:59:01,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:01,989 INFO L225 Difference]: With dead ends: 14 [2023-11-26 11:59:01,989 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:59:01,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:59:01,991 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:01,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 23 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:01,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:59:01,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:59:01,992 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) [2023-11-26 11:59:01,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:59:01,993 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-11-26 11:59:01,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:01,993 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:59:01,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 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) [2023-11-26 11:59:01,993 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:59:01,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:59:02,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:59:02,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:02,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 11:59:02,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:59:02,373 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 96) no Hoare annotation was computed. [2023-11-26 11:59:02,373 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 65) no Hoare annotation was computed. [2023-11-26 11:59:02,374 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 97) no Hoare annotation was computed. [2023-11-26 11:59:02,374 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 112 127) no Hoare annotation was computed. [2023-11-26 11:59:02,374 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 103 107) no Hoare annotation was computed. [2023-11-26 11:59:02,374 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2023-11-26 11:59:02,374 INFO L895 garLoopResultBuilder]: At program point L103-2(lines 103 107) 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___ieee754_logf_#res#1| .cse0) (= .cse0 |ULTIMATE.start_isinf_float_~x#1|))) [2023-11-26 11:59:02,375 INFO L899 garLoopResultBuilder]: For program point L103-3(lines 103 107) no Hoare annotation was computed. [2023-11-26 11:59:02,375 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2023-11-26 11:59:02,375 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:59:02,375 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 47) no Hoare annotation was computed. [2023-11-26 11:59:02,375 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2023-11-26 11:59:02,375 INFO L899 garLoopResultBuilder]: For program point L122(lines 122 125) no Hoare annotation was computed. [2023-11-26 11:59:02,375 INFO L899 garLoopResultBuilder]: For program point L123(line 123) no Hoare annotation was computed. [2023-11-26 11:59:02,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2023-11-26 11:59:02,376 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2023-11-26 11:59:02,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:59:02,376 INFO L899 garLoopResultBuilder]: For program point L58(lines 58 74) no Hoare annotation was computed. [2023-11-26 11:59:02,376 INFO L899 garLoopResultBuilder]: For program point __ieee754_logf_returnLabel#1(lines 22 98) no Hoare annotation was computed. [2023-11-26 11:59:02,376 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2023-11-26 11:59:02,377 INFO L895 garLoopResultBuilder]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2023-11-26 11:59:02,377 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 66) no Hoare annotation was computed. [2023-11-26 11:59:02,377 INFO L899 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2023-11-26 11:59:02,377 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_logf_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-26 11:59:02,377 INFO L899 garLoopResultBuilder]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2023-11-26 11:59:02,377 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2023-11-26 11:59:02,377 INFO L895 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2023-11-26 11:59:02,378 INFO L899 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2023-11-26 11:59:02,378 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 73) no Hoare annotation was computed. [2023-11-26 11:59:02,378 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2023-11-26 11:59:02,386 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 11:59:02,389 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:59:02,403 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-26 11:59:02,404 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-26 11:59:02,404 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-26 11:59:02,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:59:02 BoogieIcfgContainer [2023-11-26 11:59:02,406 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:59:02,410 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:59:02,410 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:59:02,411 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:59:02,412 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:57" (3/4) ... [2023-11-26 11:59:02,414 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:59:02,427 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-26 11:59:02,427 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-26 11:59:02,428 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:59:02,428 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:59:02,553 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:59:02,554 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:59:02,554 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:59:02,555 INFO L158 Benchmark]: Toolchain (without parser) took 39761.90ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 45.3MB in the end (delta: 23.1MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2023-11-26 11:59:02,555 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 69.2MB. Free memory is still 44.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:59:02,555 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.54ms. Allocated memory is still 92.3MB. Free memory was 68.1MB in the beginning and 54.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:59:02,556 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.23ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 52.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:59:02,556 INFO L158 Benchmark]: Boogie Preprocessor took 101.85ms. Allocated memory is still 92.3MB. Free memory was 52.7MB in the beginning and 49.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:59:02,557 INFO L158 Benchmark]: RCFGBuilder took 34410.32ms. Allocated memory is still 92.3MB. Free memory was 49.3MB in the beginning and 53.7MB in the end (delta: -4.4MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2023-11-26 11:59:02,557 INFO L158 Benchmark]: TraceAbstraction took 4635.51ms. Allocated memory is still 92.3MB. Free memory was 52.8MB in the beginning and 51.0MB in the end (delta: 1.8MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2023-11-26 11:59:02,558 INFO L158 Benchmark]: Witness Printer took 144.17ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 45.3MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:59:02,560 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 69.2MB. Free memory is still 44.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.54ms. Allocated memory is still 92.3MB. Free memory was 68.1MB in the beginning and 54.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.23ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 52.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.85ms. Allocated memory is still 92.3MB. Free memory was 52.7MB in the beginning and 49.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 34410.32ms. Allocated memory is still 92.3MB. Free memory was 49.3MB in the beginning and 53.7MB in the end (delta: -4.4MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4635.51ms. Allocated memory is still 92.3MB. Free memory was 52.8MB in the beginning and 51.0MB in the end (delta: 1.8MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Witness Printer took 144.17ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 45.3MB in the end (delta: 5.7MB). 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: 123]: 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, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 49 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 6 NumberOfFragments, 47 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 4 QuantifiedInterpolants, 220 SizeOfPredicates, 16 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-26 11:59:02,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5056c9-33a5-4ced-b17d-7b12753946c6/bin/uautomizer-verify-VRDe98Ueme/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