./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0250a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11f7724b26aaacc400564e4846b80581065da794226b0399a61dc9422d54755f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:52:43,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:52:43,817 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 00:52:43,823 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:52:43,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:52:43,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:52:43,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:52:43,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:52:43,856 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:52:43,857 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:52:43,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:52:43,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:52:43,859 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:52:43,859 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:52:43,860 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:52:43,861 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:52:43,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:52:43,862 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:52:43,862 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:52:43,863 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:52:43,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:52:43,864 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:52:43,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:52:43,866 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:52:43,866 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:52:43,867 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:52:43,867 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:52:43,868 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:52:43,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:52:43,869 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:52:43,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:52:43,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:52:43,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:52:43,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:52:43,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:52:43,871 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:52:43,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:52:43,871 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:52:43,871 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:52:43,872 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:52:43,872 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:52:43,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:52:43,872 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_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11f7724b26aaacc400564e4846b80581065da794226b0399a61dc9422d54755f [2023-11-29 00:52:44,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:52:44,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:52:44,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:52:44,181 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:52:44,182 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:52:44,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-newlib/float_req_bl_0250a.c [2023-11-29 00:52:47,284 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:52:47,517 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:52:47,518 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/sv-benchmarks/c/float-newlib/float_req_bl_0250a.c [2023-11-29 00:52:47,530 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/data/d08999143/0018ca5f6ad142509efc67af01196305/FLAGf0c2bbf85 [2023-11-29 00:52:47,548 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/data/d08999143/0018ca5f6ad142509efc67af01196305 [2023-11-29 00:52:47,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:52:47,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:52:47,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:52:47,556 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:52:47,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:52:47,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:47,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bf4f1bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47, skipping insertion in model container [2023-11-29 00:52:47,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:47,605 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:52:47,897 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_ac12a6ab-49c9-417e-80e1-573551b0be68/sv-benchmarks/c/float-newlib/float_req_bl_0250a.c[5433,5446] [2023-11-29 00:52:47,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:52:47,915 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:52:47,973 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_ac12a6ab-49c9-417e-80e1-573551b0be68/sv-benchmarks/c/float-newlib/float_req_bl_0250a.c[5433,5446] [2023-11-29 00:52:47,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:52:47,994 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:52:47,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47 WrapperNode [2023-11-29 00:52:47,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:52:47,996 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:52:47,996 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:52:47,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:52:48,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,059 INFO L138 Inliner]: procedures = 20, calls = 47, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 269 [2023-11-29 00:52:48,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:52:48,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:52:48,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:52:48,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:52:48,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,081 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,105 INFO L175 MemorySlicer]: Split 16 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 2, 2]. 13 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1]. [2023-11-29 00:52:48,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:52:48,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:52:48,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:52:48,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:52:48,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (1/1) ... [2023-11-29 00:52:48,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:52:48,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:48,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:52:48,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:52:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:52:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:52:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:52:48,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 00:52:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 00:52:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 00:52:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 00:52:48,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 00:52:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 00:52:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:52:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-29 00:52:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-29 00:52:48,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-29 00:52:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-29 00:52:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-29 00:52:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-29 00:52:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-29 00:52:48,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-29 00:52:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:52:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:52:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 00:52:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 00:52:48,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 00:52:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 00:52:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 00:52:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 00:52:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-29 00:52:48,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-29 00:52:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-29 00:52:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-29 00:52:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-29 00:52:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-11-29 00:52:48,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2023-11-29 00:52:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2023-11-29 00:52:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:52:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:52:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:52:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:52:48,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 00:52:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 00:52:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 00:52:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 00:52:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 00:52:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 00:52:48,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:52:48,389 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:52:48,391 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:52:48,668 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:52:48,698 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:52:48,699 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-29 00:52:48,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:52:48 BoogieIcfgContainer [2023-11-29 00:52:48,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:52:48,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:52:48,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:52:48,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:52:48,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:52:47" (1/3) ... [2023-11-29 00:52:48,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b37a9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:52:48, skipping insertion in model container [2023-11-29 00:52:48,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:47" (2/3) ... [2023-11-29 00:52:48,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b37a9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:52:48, skipping insertion in model container [2023-11-29 00:52:48,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:52:48" (3/3) ... [2023-11-29 00:52:48,710 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250a.c [2023-11-29 00:52:48,735 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:52:48,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 00:52:48,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:52:48,792 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;@7e98de7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:52:48,792 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 00:52:48,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 54 states have (on average 1.7407407407407407) internal successors, (94), 55 states have internal predecessors, (94), 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) [2023-11-29 00:52:48,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 00:52:48,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:52:48,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:48,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:52:48,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:48,811 INFO L85 PathProgramCache]: Analyzing trace with hash -965205173, now seen corresponding path program 1 times [2023-11-29 00:52:48,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:48,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22883003] [2023-11-29 00:52:48,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:48,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:52:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:52:48,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:48,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22883003] [2023-11-29 00:52:48,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22883003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:52:48,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:52:48,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:52:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050013304] [2023-11-29 00:52:49,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:52:49,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:52:49,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:49,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:52:49,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:52:49,091 INFO L87 Difference]: Start difference. First operand has 56 states, 54 states have (on average 1.7407407407407407) internal successors, (94), 55 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-29 00:52:49,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:52:49,165 INFO L93 Difference]: Finished difference Result 111 states and 187 transitions. [2023-11-29 00:52:49,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:52:49,168 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 00:52:49,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:52:49,176 INFO L225 Difference]: With dead ends: 111 [2023-11-29 00:52:49,176 INFO L226 Difference]: Without dead ends: 54 [2023-11-29 00:52:49,179 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 [2023-11-29 00:52:49,183 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:52:49,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:52:49,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-29 00:52:49,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-29 00:52:49,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 53 states have internal predecessors, (74), 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) [2023-11-29 00:52:49,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions. [2023-11-29 00:52:49,225 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 7 [2023-11-29 00:52:49,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:52:49,226 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 74 transitions. [2023-11-29 00:52:49,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-29 00:52:49,226 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions. [2023-11-29 00:52:49,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 00:52:49,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:52:49,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:49,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:52:49,228 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:52:49,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:49,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1927083972, now seen corresponding path program 1 times [2023-11-29 00:52:49,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:49,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398106489] [2023-11-29 00:52:49,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:49,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:52:49,275 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:52:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:52:49,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:52:49,326 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:52:49,327 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 00:52:49,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:52:49,331 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 00:52:49,334 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:52:49,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:52:49 BoogieIcfgContainer [2023-11-29 00:52:49,357 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:52:49,358 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:52:49,358 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:52:49,358 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:52:49,358 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:52:48" (3/4) ... [2023-11-29 00:52:49,360 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 00:52:49,361 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:52:49,362 INFO L158 Benchmark]: Toolchain (without parser) took 1808.64ms. Allocated memory is still 148.9MB. Free memory was 89.9MB in the beginning and 103.7MB in the end (delta: -13.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:52:49,362 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory was 51.1MB in the beginning and 51.0MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:52:49,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.95ms. Allocated memory is still 148.9MB. Free memory was 89.8MB in the beginning and 116.8MB in the end (delta: -27.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 00:52:49,364 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.09ms. Allocated memory is still 148.9MB. Free memory was 116.8MB in the beginning and 114.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:52:49,364 INFO L158 Benchmark]: Boogie Preprocessor took 84.62ms. Allocated memory is still 148.9MB. Free memory was 114.1MB in the beginning and 110.3MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:52:49,365 INFO L158 Benchmark]: RCFGBuilder took 553.94ms. Allocated memory is still 148.9MB. Free memory was 110.3MB in the beginning and 86.9MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-29 00:52:49,365 INFO L158 Benchmark]: TraceAbstraction took 654.24ms. Allocated memory is still 148.9MB. Free memory was 86.1MB in the beginning and 104.4MB in the end (delta: -18.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:52:49,366 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 148.9MB. Free memory was 104.4MB in the beginning and 103.7MB in the end (delta: 698.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:52:49,369 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory was 51.1MB in the beginning and 51.0MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.95ms. Allocated memory is still 148.9MB. Free memory was 89.8MB in the beginning and 116.8MB in the end (delta: -27.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.09ms. Allocated memory is still 148.9MB. Free memory was 116.8MB in the beginning and 114.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.62ms. Allocated memory is still 148.9MB. Free memory was 114.1MB in the beginning and 110.3MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.94ms. Allocated memory is still 148.9MB. Free memory was 110.3MB in the beginning and 86.9MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 654.24ms. Allocated memory is still 148.9MB. Free memory was 86.1MB in the beginning and 104.4MB in the end (delta: -18.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.62ms. Allocated memory is still 148.9MB. Free memory was 104.4MB in the beginning and 103.7MB in the end (delta: 698.6kB). Peak memory consumption was 2.1MB. 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: 235]: 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 someBinaryFLOATComparisonOperation at line 60, overapproximation of someUnaryDOUBLEoperation at line 149, overapproximation of someUnaryFLOAToperation at line 147, overapproximation of someBinaryArithmeticFLOAToperation at line 166. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L62] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L145-L153] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L230] float x = 1.0f / 0.0f; [L231] CALL, EXPR __ieee754_asinf(x) [L156] float t, w, p, q, c, r, s; [L157] __int32_t hx, ix; VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L159] ieee_float_shape_type gf_u; [L160] EXPR gf_u.value = (x) [L161] EXPR gf_u.word [L161] EXPR (hx) = gf_u.word [L158-L162] { ieee_float_shape_type gf_u; gf_u.value = (x); (hx) = gf_u.word; } VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=1065353216, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L163] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=1065353216, ix=1065353216, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L164] COND TRUE ix == 0x3f800000 [L166] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=1065353216, ix=1065353216, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L231] RET, EXPR __ieee754_asinf(x) [L231] float res = __ieee754_asinf(x); [L234] CALL, EXPR isnan_float(res) [L60] return x != x; [L234] RET, EXPR isnan_float(res) [L234] COND TRUE !isnan_float(res) [L235] reach_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000001, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 71 mSDtfsCounter, 5 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=56occurred 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 [2023-11-29 00:52:49,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11f7724b26aaacc400564e4846b80581065da794226b0399a61dc9422d54755f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:52:51,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:52:51,410 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 00:52:51,417 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:52:51,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:52:51,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:52:51,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:52:51,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:52:51,449 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:52:51,450 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:52:51,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:52:51,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:52:51,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:52:51,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:52:51,453 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:52:51,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:52:51,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:52:51,454 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:52:51,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:52:51,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:52:51,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:52:51,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:52:51,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:52:51,457 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:52:51,458 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 00:52:51,458 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 00:52:51,459 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:52:51,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:52:51,459 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:52:51,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:52:51,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:52:51,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:52:51,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:52:51,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:52:51,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:52:51,464 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:52:51,464 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:52:51,464 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 00:52:51,465 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 00:52:51,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:52:51,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:52:51,465 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:52:51,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:52:51,466 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:52:51,466 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 00:52:51,466 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_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11f7724b26aaacc400564e4846b80581065da794226b0399a61dc9422d54755f [2023-11-29 00:52:51,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:52:51,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:52:51,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:52:51,797 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:52:51,797 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:52:51,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/float-newlib/float_req_bl_0250a.c [2023-11-29 00:52:54,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:52:54,960 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:52:54,961 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/sv-benchmarks/c/float-newlib/float_req_bl_0250a.c [2023-11-29 00:52:54,976 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/data/0bb852c3f/8db727e2d0ee4650a3ee8ccf38aeeb86/FLAG616ddba37 [2023-11-29 00:52:54,994 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/data/0bb852c3f/8db727e2d0ee4650a3ee8ccf38aeeb86 [2023-11-29 00:52:54,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:52:55,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:52:55,002 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:52:55,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:52:55,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:52:55,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:52:54" (1/1) ... [2023-11-29 00:52:55,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a5c2125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55, skipping insertion in model container [2023-11-29 00:52:55,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:52:54" (1/1) ... [2023-11-29 00:52:55,043 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:52:55,269 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_ac12a6ab-49c9-417e-80e1-573551b0be68/sv-benchmarks/c/float-newlib/float_req_bl_0250a.c[5433,5446] [2023-11-29 00:52:55,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:52:55,295 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:52:55,355 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_ac12a6ab-49c9-417e-80e1-573551b0be68/sv-benchmarks/c/float-newlib/float_req_bl_0250a.c[5433,5446] [2023-11-29 00:52:55,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:52:55,379 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:52:55,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55 WrapperNode [2023-11-29 00:52:55,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:52:55,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:52:55,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:52:55,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:52:55,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,443 INFO L138 Inliner]: procedures = 23, calls = 47, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 248 [2023-11-29 00:52:55,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:52:55,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:52:55,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:52:55,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:52:55,459 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,467 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,491 INFO L175 MemorySlicer]: Split 16 memory accesses to 8 slices as follows [2, 2, 2, 2, 2, 2, 2, 2]. 13 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1]. [2023-11-29 00:52:55,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,512 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:52:55,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:52:55,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:52:55,538 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:52:55,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (1/1) ... [2023-11-29 00:52:55,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:52:55,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:55,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:52:55,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:52:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:52:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 00:52:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 00:52:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 00:52:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 00:52:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-29 00:52:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-29 00:52:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-29 00:52:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-11-29 00:52:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:52:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-29 00:52:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-29 00:52:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-11-29 00:52:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-11-29 00:52:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2023-11-29 00:52:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2023-11-29 00:52:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2023-11-29 00:52:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2023-11-29 00:52:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 00:52:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 00:52:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 00:52:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 00:52:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-29 00:52:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-29 00:52:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-11-29 00:52:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-11-29 00:52:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:52:55,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:52:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-29 00:52:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-29 00:52:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-11-29 00:52:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-11-29 00:52:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2023-11-29 00:52:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2023-11-29 00:52:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2023-11-29 00:52:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2023-11-29 00:52:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 00:52:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 00:52:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 00:52:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 00:52:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-29 00:52:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-29 00:52:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-11-29 00:52:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-11-29 00:52:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:52:55,827 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:52:55,829 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:53:15,989 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:53:16,020 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:53:16,021 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-29 00:53:16,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:53:16 BoogieIcfgContainer [2023-11-29 00:53:16,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:53:16,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:53:16,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:53:16,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:53:16,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:52:54" (1/3) ... [2023-11-29 00:53:16,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277709a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:53:16, skipping insertion in model container [2023-11-29 00:53:16,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:52:55" (2/3) ... [2023-11-29 00:53:16,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277709a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:53:16, skipping insertion in model container [2023-11-29 00:53:16,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:53:16" (3/3) ... [2023-11-29 00:53:16,031 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250a.c [2023-11-29 00:53:16,050 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:53:16,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 00:53:16,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:53:16,096 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;@367b20f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:53:16,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 00:53:16,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 49 states have (on average 1.7346938775510203) internal successors, (85), 50 states have internal predecessors, (85), 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) [2023-11-29 00:53:16,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 00:53:16,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:16,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:16,106 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:53:16,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:16,112 INFO L85 PathProgramCache]: Analyzing trace with hash 97023805, now seen corresponding path program 1 times [2023-11-29 00:53:16,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:16,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004235302] [2023-11-29 00:53:16,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:16,122 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 [2023-11-29 00:53:16,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:16,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:53:16,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 00:53:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:16,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 00:53:16,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:16,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:16,812 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:53:16,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:16,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004235302] [2023-11-29 00:53:16,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004235302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:16,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:16,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:53:16,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673503073] [2023-11-29 00:53:16,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:16,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:53:16,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:16,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:53:16,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:53:16,845 INFO L87 Difference]: Start difference. First operand has 51 states, 49 states have (on average 1.7346938775510203) internal successors, (85), 50 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-29 00:53:21,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 00:53:21,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:21,620 INFO L93 Difference]: Finished difference Result 101 states and 169 transitions. [2023-11-29 00:53:21,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:53:21,623 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 00:53:21,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:21,631 INFO L225 Difference]: With dead ends: 101 [2023-11-29 00:53:21,631 INFO L226 Difference]: Without dead ends: 49 [2023-11-29 00:53:21,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:53:21,638 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:21,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2023-11-29 00:53:21,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-29 00:53:21,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-29 00:53:21,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.375) internal successors, (66), 48 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2023-11-29 00:53:21,674 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 7 [2023-11-29 00:53:21,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:21,675 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2023-11-29 00:53:21,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-29 00:53:21,675 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2023-11-29 00:53:21,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 00:53:21,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:21,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:21,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:53:21,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:53:21,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:53:21,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:21,878 INFO L85 PathProgramCache]: Analyzing trace with hash 937928444, now seen corresponding path program 1 times [2023-11-29 00:53:21,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:21,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631577956] [2023-11-29 00:53:21,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:21,879 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 [2023-11-29 00:53:21,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:21,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:53:21,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 00:53:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:22,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:53:22,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:22,562 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 [2023-11-29 00:53:22,581 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 [2023-11-29 00:53:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:22,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:53:22,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:22,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631577956] [2023-11-29 00:53:22,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631577956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:22,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:22,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:53:22,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622582423] [2023-11-29 00:53:22,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:22,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:53:22,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:22,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:53:22,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:53:22,889 INFO L87 Difference]: Start difference. First operand 49 states and 66 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:23,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:23,638 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2023-11-29 00:53:23,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:53:23,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-29 00:53:23,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:23,640 INFO L225 Difference]: With dead ends: 53 [2023-11-29 00:53:23,640 INFO L226 Difference]: Without dead ends: 10 [2023-11-29 00:53:23,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:53:23,642 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:23,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:53:23,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-29 00:53:23,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-29 00:53:23,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.0) internal successors, (9), 9 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) [2023-11-29 00:53:23,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2023-11-29 00:53:23,645 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 8 [2023-11-29 00:53:23,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:23,645 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2023-11-29 00:53:23,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:53:23,646 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2023-11-29 00:53:23,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 00:53:23,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:23,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:23,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 00:53:23,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:53:23,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:53:23,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:23,848 INFO L85 PathProgramCache]: Analyzing trace with hash -993328033, now seen corresponding path program 1 times [2023-11-29 00:53:23,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:53:23,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519281030] [2023-11-29 00:53:23,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:23,849 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 [2023-11-29 00:53:23,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:53:23,850 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 00:53:23,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 00:53:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:53:24,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:53:24,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:24,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:53:24,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:53:24,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 00:53:24,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519281030] [2023-11-29 00:53:24,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1519281030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:53:24,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:53:24,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:53:24,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494134948] [2023-11-29 00:53:24,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:53:24,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:53:24,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 00:53:24,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:53:24,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:53:24,987 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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) [2023-11-29 00:53:25,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:25,813 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2023-11-29 00:53:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:53:25,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 [2023-11-29 00:53:25,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:25,814 INFO L225 Difference]: With dead ends: 10 [2023-11-29 00:53:25,814 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 00:53:25,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:53:25,816 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:25,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:53:25,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 00:53:25,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 00:53:25,818 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) [2023-11-29 00:53:25,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 00:53:25,818 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2023-11-29 00:53:25,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:25,819 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:53:25,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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) [2023-11-29 00:53:25,819 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 00:53:25,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 00:53:25,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 00:53:25,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-29 00:53:26,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 00:53:26,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 00:53:26,189 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 89) no Hoare annotation was computed. [2023-11-29 00:53:26,189 INFO L899 garLoopResultBuilder]: For program point L85-2(lines 85 89) no Hoare annotation was computed. [2023-11-29 00:53:26,190 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 237) no Hoare annotation was computed. [2023-11-29 00:53:26,190 INFO L899 garLoopResultBuilder]: For program point L201-1(lines 201 205) no Hoare annotation was computed. [2023-11-29 00:53:26,190 INFO L895 garLoopResultBuilder]: At program point L201-2(lines 201 205) the Hoare annotation is: false [2023-11-29 00:53:26,190 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 106) no Hoare annotation was computed. [2023-11-29 00:53:26,190 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 69 73) no Hoare annotation was computed. [2023-11-29 00:53:26,190 INFO L899 garLoopResultBuilder]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2023-11-29 00:53:26,190 INFO L895 garLoopResultBuilder]: At program point L69-2(lines 69 73) the Hoare annotation is: false [2023-11-29 00:53:26,191 INFO L899 garLoopResultBuilder]: For program point L69-3(lines 69 73) no Hoare annotation was computed. [2023-11-29 00:53:26,191 INFO L895 garLoopResultBuilder]: At program point L86-3(lines 86 87) the Hoare annotation is: false [2023-11-29 00:53:26,191 INFO L899 garLoopResultBuilder]: For program point L86-4(lines 86 87) no Hoare annotation was computed. [2023-11-29 00:53:26,191 INFO L899 garLoopResultBuilder]: For program point L235(line 235) no Hoare annotation was computed. [2023-11-29 00:53:26,191 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 184) no Hoare annotation was computed. [2023-11-29 00:53:26,191 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 169 184) no Hoare annotation was computed. [2023-11-29 00:53:26,192 INFO L899 garLoopResultBuilder]: For program point __ieee754_sqrtf_returnLabel#1(lines 64 129) no Hoare annotation was computed. [2023-11-29 00:53:26,192 INFO L899 garLoopResultBuilder]: For program point __ieee754_asinf_returnLabel#1(lines 155 221) no Hoare annotation was computed. [2023-11-29 00:53:26,192 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 183) no Hoare annotation was computed. [2023-11-29 00:53:26,192 INFO L899 garLoopResultBuilder]: For program point L137(lines 137 141) no Hoare annotation was computed. [2023-11-29 00:53:26,192 INFO L895 garLoopResultBuilder]: At program point L137-1(lines 137 141) the Hoare annotation is: false [2023-11-29 00:53:26,192 INFO L899 garLoopResultBuilder]: For program point L137-2(lines 137 141) no Hoare annotation was computed. [2023-11-29 00:53:26,193 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 172) no Hoare annotation was computed. [2023-11-29 00:53:26,193 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 123 127) no Hoare annotation was computed. [2023-11-29 00:53:26,193 INFO L895 garLoopResultBuilder]: At program point L123-2(lines 123 127) the Hoare annotation is: false [2023-11-29 00:53:26,193 INFO L899 garLoopResultBuilder]: For program point L123-3(lines 123 127) no Hoare annotation was computed. [2023-11-29 00:53:26,193 INFO L899 garLoopResultBuilder]: For program point L206(lines 206 210) no Hoare annotation was computed. [2023-11-29 00:53:26,193 INFO L895 garLoopResultBuilder]: At program point L206-1(lines 206 210) the Hoare annotation is: false [2023-11-29 00:53:26,194 INFO L899 garLoopResultBuilder]: For program point L206-2(lines 206 210) no Hoare annotation was computed. [2023-11-29 00:53:26,194 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 00:53:26,194 INFO L899 garLoopResultBuilder]: For program point L158-1(lines 158 162) no Hoare annotation was computed. [2023-11-29 00:53:26,194 INFO L895 garLoopResultBuilder]: At program point L158-2(lines 158 162) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asinf_~x#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-29 00:53:26,194 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2023-11-29 00:53:26,194 INFO L899 garLoopResultBuilder]: For program point L158-3(lines 158 162) no Hoare annotation was computed. [2023-11-29 00:53:26,195 INFO L899 garLoopResultBuilder]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2023-11-29 00:53:26,195 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 77) no Hoare annotation was computed. [2023-11-29 00:53:26,195 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 223 240) no Hoare annotation was computed. [2023-11-29 00:53:26,195 INFO L899 garLoopResultBuilder]: For program point L111(lines 111 120) no Hoare annotation was computed. [2023-11-29 00:53:26,195 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 80) no Hoare annotation was computed. [2023-11-29 00:53:26,195 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 00:53:26,195 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 216) no Hoare annotation was computed. [2023-11-29 00:53:26,196 INFO L899 garLoopResultBuilder]: For program point L195-2(lines 155 221) no Hoare annotation was computed. [2023-11-29 00:53:26,196 INFO L899 garLoopResultBuilder]: For program point L113(lines 113 119) no Hoare annotation was computed. [2023-11-29 00:53:26,196 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 82) no Hoare annotation was computed. [2023-11-29 00:53:26,196 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 184) no Hoare annotation was computed. [2023-11-29 00:53:26,196 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 235) no Hoare annotation was computed. [2023-11-29 00:53:26,197 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 118) no Hoare annotation was computed. [2023-11-29 00:53:26,197 INFO L899 garLoopResultBuilder]: For program point L132-1(lines 132 136) no Hoare annotation was computed. [2023-11-29 00:53:26,197 INFO L895 garLoopResultBuilder]: At program point L132-2(lines 132 136) the Hoare annotation is: false [2023-11-29 00:53:26,197 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 100 109) the Hoare annotation is: false [2023-11-29 00:53:26,197 INFO L899 garLoopResultBuilder]: For program point L100-3(lines 64 129) no Hoare annotation was computed. [2023-11-29 00:53:26,197 INFO L899 garLoopResultBuilder]: For program point L167(lines 167 184) no Hoare annotation was computed. [2023-11-29 00:53:26,201 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 00:53:26,204 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:53:26,219 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-29 00:53:26,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:53:26 BoogieIcfgContainer [2023-11-29 00:53:26,220 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:53:26,221 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:53:26,221 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:53:26,221 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:53:26,222 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:53:16" (3/4) ... [2023-11-29 00:53:26,224 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 00:53:26,236 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-29 00:53:26,237 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 00:53:26,237 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 00:53:26,238 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 00:53:26,347 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 00:53:26,348 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 00:53:26,348 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:53:26,349 INFO L158 Benchmark]: Toolchain (without parser) took 31349.12ms. Allocated memory is still 104.9MB. Free memory was 81.1MB in the beginning and 37.8MB in the end (delta: 43.3MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2023-11-29 00:53:26,349 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:53:26,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.61ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 65.8MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 00:53:26,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.71ms. Allocated memory is still 104.9MB. Free memory was 65.8MB in the beginning and 63.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:53:26,351 INFO L158 Benchmark]: Boogie Preprocessor took 92.12ms. Allocated memory is still 104.9MB. Free memory was 63.1MB in the beginning and 58.8MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:53:26,351 INFO L158 Benchmark]: RCFGBuilder took 20483.49ms. Allocated memory is still 104.9MB. Free memory was 58.8MB in the beginning and 58.4MB in the end (delta: 376.1kB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2023-11-29 00:53:26,352 INFO L158 Benchmark]: TraceAbstraction took 10195.85ms. Allocated memory is still 104.9MB. Free memory was 57.6MB in the beginning and 43.4MB in the end (delta: 14.2MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2023-11-29 00:53:26,352 INFO L158 Benchmark]: Witness Printer took 127.31ms. Allocated memory is still 104.9MB. Free memory was 42.7MB in the beginning and 37.8MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 00:53:26,355 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 69.2MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.61ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 65.8MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.71ms. Allocated memory is still 104.9MB. Free memory was 65.8MB in the beginning and 63.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.12ms. Allocated memory is still 104.9MB. Free memory was 63.1MB in the beginning and 58.8MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 20483.49ms. Allocated memory is still 104.9MB. Free memory was 58.8MB in the beginning and 58.4MB in the end (delta: 376.1kB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10195.85ms. Allocated memory is still 104.9MB. Free memory was 57.6MB in the beginning and 43.4MB in the end (delta: 14.2MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Witness Printer took 127.31ms. Allocated memory is still 104.9MB. Free memory was 42.7MB in the beginning and 37.8MB in the end (delta: 5.0MB). 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 * 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: 235]: 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, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 69 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 9 LocationsWithAnnotation, 9 PreInvPairs, 10 NumberOfFragments, 20 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 4 QuantifiedInterpolants, 166 SizeOfPredicates, 14 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 19 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: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 206]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-29 00:53:26,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac12a6ab-49c9-417e-80e1-573551b0be68/bin/uautomizer-verify-BQ2R08f2Ya/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 Writing output log to file Ultimate.log Result: TRUE