./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0661b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0661b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU --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 bb7f3afec9a7b0bf288c62eb95c6c2b13307d1b9b48696daca584c7566ec9aef --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:10:03,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:10:03,872 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:10:03,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:10:03,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:10:03,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:10:03,919 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:10:03,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:10:03,920 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:10:03,921 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:10:03,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:10:03,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:10:03,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:10:03,923 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:10:03,923 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:10:03,923 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:10:03,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:10:03,927 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:10:03,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:10:03,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:10:03,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:10:03,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:10:03,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:10:03,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:10:03,941 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:10:03,941 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:10:03,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:10:03,942 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:10:03,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:10:03,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:10:03,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:10:03,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:10:03,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:03,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:10:03,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:10:03,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:10:03,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:10:03,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:10:03,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:10:03,945 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:10:03,945 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:10:03,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:10:03,946 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_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb7f3afec9a7b0bf288c62eb95c6c2b13307d1b9b48696daca584c7566ec9aef [2024-10-31 22:10:04,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:10:04,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:10:04,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:10:04,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:10:04,324 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:10:04,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/float-newlib/float_req_bl_0661b.c Unable to find full path for "g++" [2024-10-31 22:10:06,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:10:06,749 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:10:06,749 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/sv-benchmarks/c/float-newlib/float_req_bl_0661b.c [2024-10-31 22:10:06,760 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/data/2dd2f62b7/d8ccba9227a443f0a3d181a404c3b7f7/FLAG288c635ea [2024-10-31 22:10:06,792 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/data/2dd2f62b7/d8ccba9227a443f0a3d181a404c3b7f7 [2024-10-31 22:10:06,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:10:06,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:10:06,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:06,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:10:06,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:10:06,812 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:06" (1/1) ... [2024-10-31 22:10:06,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@711738a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:06, skipping insertion in model container [2024-10-31 22:10:06,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:06" (1/1) ... [2024-10-31 22:10:06,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:10:07,172 WARN L251 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_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/sv-benchmarks/c/float-newlib/float_req_bl_0661b.c[5269,5282] [2024-10-31 22:10:07,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:07,191 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:10:07,247 WARN L251 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_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/sv-benchmarks/c/float-newlib/float_req_bl_0661b.c[5269,5282] [2024-10-31 22:10:07,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:07,269 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:10:07,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07 WrapperNode [2024-10-31 22:10:07,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:07,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:07,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:10:07,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:10:07,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,290 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,337 INFO L138 Inliner]: procedures = 20, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 235 [2024-10-31 22:10:07,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:07,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:10:07,342 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:10:07,342 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:10:07,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,362 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,378 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-10-31 22:10:07,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,397 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:10:07,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:10:07,450 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:10:07,450 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:10:07,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (1/1) ... [2024-10-31 22:10:07,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:07,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:07,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:07,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:10:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:10:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:10:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-10-31 22:10:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:10:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-10-31 22:10:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:10:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-10-31 22:10:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2024-10-31 22:10:07,538 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2024-10-31 22:10:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:10:07,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:10:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:10:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-10-31 22:10:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2024-10-31 22:10:07,539 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2024-10-31 22:10:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:10:07,704 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:10:07,706 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:10:08,387 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-10-31 22:10:08,387 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:10:08,409 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:10:08,409 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-31 22:10:08,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:08 BoogieIcfgContainer [2024-10-31 22:10:08,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:10:08,420 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:10:08,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:10:08,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:10:08,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:10:06" (1/3) ... [2024-10-31 22:10:08,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7f1931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:08, skipping insertion in model container [2024-10-31 22:10:08,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:07" (2/3) ... [2024-10-31 22:10:08,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7f1931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:08, skipping insertion in model container [2024-10-31 22:10:08,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:08" (3/3) ... [2024-10-31 22:10:08,433 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0661b.c [2024-10-31 22:10:08,455 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:10:08,455 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:10:08,556 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:08,562 INFO L333 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, 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;@6b037f09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:08,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:10:08,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 85 states have (on average 1.6588235294117648) internal successors, (141), 86 states have internal predecessors, (141), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:10:08,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:10:08,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:08,578 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:08,580 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:08,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:08,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1457392418, now seen corresponding path program 1 times [2024-10-31 22:10:08,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:08,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536456669] [2024-10-31 22:10:08,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:08,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:08,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:08,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:08,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536456669] [2024-10-31 22:10:08,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536456669] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:08,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:08,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:08,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782230651] [2024-10-31 22:10:08,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:08,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:10:08,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:08,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:10:08,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:10:08,976 INFO L87 Difference]: Start difference. First operand has 93 states, 85 states have (on average 1.6588235294117648) internal successors, (141), 86 states have internal predecessors, (141), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:09,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:09,040 INFO L93 Difference]: Finished difference Result 183 states and 298 transitions. [2024-10-31 22:10:09,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:10:09,043 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-31 22:10:09,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:09,056 INFO L225 Difference]: With dead ends: 183 [2024-10-31 22:10:09,056 INFO L226 Difference]: Without dead ends: 89 [2024-10-31 22:10:09,064 INFO L431 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 [2024-10-31 22:10:09,072 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:09,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:10:09,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-10-31 22:10:09,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-10-31 22:10:09,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 82 states have (on average 1.475609756097561) internal successors, (121), 82 states have internal predecessors, (121), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:10:09,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 129 transitions. [2024-10-31 22:10:09,179 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 129 transitions. Word has length 11 [2024-10-31 22:10:09,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:09,179 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 129 transitions. [2024-10-31 22:10:09,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:09,180 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 129 transitions. [2024-10-31 22:10:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-31 22:10:09,181 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:09,181 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:09,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:10:09,184 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:09,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:09,185 INFO L85 PathProgramCache]: Analyzing trace with hash 413186411, now seen corresponding path program 1 times [2024-10-31 22:10:09,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:09,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433389569] [2024-10-31 22:10:09,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:09,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:09,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:09,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:09,443 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:10:09,445 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 22:10:09,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:10:09,453 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-31 22:10:09,499 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:10:09,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:10:09 BoogieIcfgContainer [2024-10-31 22:10:09,511 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:10:09,511 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:10:09,512 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:10:09,512 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:10:09,516 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:08" (3/4) ... [2024-10-31 22:10:09,519 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:10:09,521 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:10:09,526 INFO L158 Benchmark]: Toolchain (without parser) took 2725.66ms. Allocated memory is still 169.9MB. Free memory was 142.3MB in the beginning and 104.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2024-10-31 22:10:09,526 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:10:09,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.81ms. Allocated memory is still 169.9MB. Free memory was 142.3MB in the beginning and 125.9MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-31 22:10:09,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.30ms. Allocated memory is still 169.9MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:10:09,528 INFO L158 Benchmark]: Boogie Preprocessor took 107.20ms. Allocated memory is still 169.9MB. Free memory was 123.8MB in the beginning and 120.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:10:09,528 INFO L158 Benchmark]: RCFGBuilder took 967.42ms. Allocated memory is still 169.9MB. Free memory was 120.6MB in the beginning and 93.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-31 22:10:09,529 INFO L158 Benchmark]: TraceAbstraction took 1091.37ms. Allocated memory is still 169.9MB. Free memory was 92.4MB in the beginning and 104.6MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:10:09,533 INFO L158 Benchmark]: Witness Printer took 9.22ms. Allocated memory is still 169.9MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:10:09,536 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.81ms. Allocated memory is still 169.9MB. Free memory was 142.3MB in the beginning and 125.9MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.30ms. Allocated memory is still 169.9MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.20ms. Allocated memory is still 169.9MB. Free memory was 123.8MB in the beginning and 120.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 967.42ms. Allocated memory is still 169.9MB. Free memory was 120.6MB in the beginning and 93.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1091.37ms. Allocated memory is still 169.9MB. Free memory was 92.4MB in the beginning and 104.6MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.22ms. Allocated memory is still 169.9MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 233]: 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 232, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L218] float x = __VERIFIER_nondet_float(); [L219] float y = 0.0f; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, y=0, zero_atan2=0] [L226] COND TRUE x > 0.0f [L229] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000040, y=0, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-8388606, ix=2139095042, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000040, y=0, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-8388606, hy=-8388607, ix=2139095042, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000040, y=0, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-8388606, hy=-8388607, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000040, y=0, zero_atan2=0] [L229] RET, EXPR __ieee754_atan2f(y, x) [L229] float res = __ieee754_atan2f(y, x); [L232] COND TRUE res != 0.0f VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L233] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 134 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2024-10-31 22:10:09,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0661b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU --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 bb7f3afec9a7b0bf288c62eb95c6c2b13307d1b9b48696daca584c7566ec9aef --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:10:12,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:10:12,180 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-31 22:10:12,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:10:12,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:10:12,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:10:12,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:10:12,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:10:12,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:10:12,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:10:12,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:10:12,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:10:12,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:10:12,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:10:12,218 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:10:12,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:10:12,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:10:12,219 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:10:12,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:10:12,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:10:12,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:10:12,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:10:12,225 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:10:12,225 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:10:12,229 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:10:12,229 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:10:12,230 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:10:12,230 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:10:12,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:10:12,231 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:10:12,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:10:12,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:10:12,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:10:12,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:10:12,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:12,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:10:12,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:10:12,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:10:12,234 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:10:12,234 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:10:12,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:10:12,237 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:10:12,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:10:12,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:10:12,238 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:10:12,239 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_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb7f3afec9a7b0bf288c62eb95c6c2b13307d1b9b48696daca584c7566ec9aef [2024-10-31 22:10:12,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:10:12,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:10:12,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:10:12,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:10:12,666 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:10:12,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/float-newlib/float_req_bl_0661b.c Unable to find full path for "g++" [2024-10-31 22:10:14,802 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:10:15,033 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:10:15,034 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/sv-benchmarks/c/float-newlib/float_req_bl_0661b.c [2024-10-31 22:10:15,043 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/data/783f4a474/ffaa67273ce04c3299ed33c4d3be2907/FLAG37aab7967 [2024-10-31 22:10:15,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/data/783f4a474/ffaa67273ce04c3299ed33c4d3be2907 [2024-10-31 22:10:15,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:10:15,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:10:15,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:15,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:10:15,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:10:15,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b9a5fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15, skipping insertion in model container [2024-10-31 22:10:15,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,138 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:10:15,458 WARN L251 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_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/sv-benchmarks/c/float-newlib/float_req_bl_0661b.c[5269,5282] [2024-10-31 22:10:15,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:15,489 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:10:15,570 WARN L251 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_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/sv-benchmarks/c/float-newlib/float_req_bl_0661b.c[5269,5282] [2024-10-31 22:10:15,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:15,608 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:10:15,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15 WrapperNode [2024-10-31 22:10:15,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:15,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:15,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:10:15,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:10:15,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,684 INFO L138 Inliner]: procedures = 23, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 220 [2024-10-31 22:10:15,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:15,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:10:15,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:10:15,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:10:15,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,713 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,756 INFO L175 MemorySlicer]: Split 53 memory accesses to 11 slices as follows [2, 2, 7, 2, 7, 23, 2, 2, 2, 2, 2]. 43 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 4, 0, 4, 0, 0, 0, 0, 0, 0]. The 19 writes are split as follows [0, 1, 0, 1, 0, 12, 1, 1, 1, 1, 1]. [2024-10-31 22:10:15,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,756 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,797 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,839 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:10:15,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:10:15,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:10:15,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:10:15,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (1/1) ... [2024-10-31 22:10:15,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:15,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:15,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:15,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:10:15,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:10:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-10-31 22:10:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-10-31 22:10:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-10-31 22:10:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-10-31 22:10:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-10-31 22:10:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-10-31 22:10:15,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-10-31 22:10:15,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-10-31 22:10:15,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-10-31 22:10:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-10-31 22:10:15,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-10-31 22:10:15,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 22:10:15,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-31 22:10:15,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-31 22:10:15,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-31 22:10:15,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-31 22:10:15,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-31 22:10:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-10-31 22:10:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-10-31 22:10:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-10-31 22:10:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-10-31 22:10:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-10-31 22:10:15,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:10:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-10-31 22:10:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-10-31 22:10:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-10-31 22:10:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-10-31 22:10:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-10-31 22:10:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-10-31 22:10:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-10-31 22:10:15,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-10-31 22:10:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-10-31 22:10:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-10-31 22:10:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-10-31 22:10:15,932 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2024-10-31 22:10:15,936 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2024-10-31 22:10:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-31 22:10:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-31 22:10:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-31 22:10:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-31 22:10:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-31 22:10:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-31 22:10:15,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-10-31 22:10:15,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-10-31 22:10:15,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-10-31 22:10:15,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-10-31 22:10:15,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-10-31 22:10:15,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-10-31 22:10:15,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-10-31 22:10:15,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-10-31 22:10:15,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-10-31 22:10:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-10-31 22:10:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-10-31 22:10:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-10-31 22:10:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-10-31 22:10:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-10-31 22:10:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-10-31 22:10:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-10-31 22:10:15,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:10:15,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:10:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-10-31 22:10:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-10-31 22:10:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-10-31 22:10:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-10-31 22:10:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-10-31 22:10:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-10-31 22:10:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-10-31 22:10:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-10-31 22:10:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-10-31 22:10:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-10-31 22:10:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-10-31 22:10:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2024-10-31 22:10:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2024-10-31 22:10:15,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-31 22:10:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-31 22:10:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-31 22:10:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-31 22:10:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-31 22:10:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-31 22:10:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-10-31 22:10:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-10-31 22:10:15,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-10-31 22:10:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-10-31 22:10:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-10-31 22:10:15,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:10:16,223 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:10:16,226 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:10:38,836 INFO L? ?]: Removed 76 outVars from TransFormulas that were not future-live. [2024-10-31 22:10:38,836 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:10:38,866 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:10:38,866 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-10-31 22:10:38,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:38 BoogieIcfgContainer [2024-10-31 22:10:38,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:10:38,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:10:38,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:10:38,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:10:38,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:10:15" (1/3) ... [2024-10-31 22:10:38,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cba02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:38, skipping insertion in model container [2024-10-31 22:10:38,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:15" (2/3) ... [2024-10-31 22:10:38,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cba02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:38, skipping insertion in model container [2024-10-31 22:10:38,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:38" (3/3) ... [2024-10-31 22:10:38,895 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0661b.c [2024-10-31 22:10:38,916 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:10:38,916 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:10:39,051 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:39,072 INFO L333 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, 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;@68b0ae63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:39,072 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:10:39,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 78 states have (on average 1.6666666666666667) internal successors, (130), 79 states have internal predecessors, (130), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:10:39,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:10:39,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:39,097 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:39,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:39,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:39,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1457367593, now seen corresponding path program 1 times [2024-10-31 22:10:39,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:10:39,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206321967] [2024-10-31 22:10:39,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:39,124 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 [2024-10-31 22:10:39,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:10:39,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:10:39,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:10:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:40,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-31 22:10:40,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:40,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:40,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:10:40,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:10:40,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206321967] [2024-10-31 22:10:40,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206321967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:40,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:40,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:40,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422427642] [2024-10-31 22:10:40,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:40,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:10:40,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:10:40,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:10:40,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:10:40,502 INFO L87 Difference]: Start difference. First operand has 86 states, 78 states have (on average 1.6666666666666667) internal successors, (130), 79 states have internal predecessors, (130), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:40,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:10:40,534 INFO L93 Difference]: Finished difference Result 169 states and 276 transitions. [2024-10-31 22:10:40,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:10:40,537 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-31 22:10:40,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:10:40,546 INFO L225 Difference]: With dead ends: 169 [2024-10-31 22:10:40,547 INFO L226 Difference]: Without dead ends: 82 [2024-10-31 22:10:40,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:10:40,558 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:10:40,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:10:40,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-10-31 22:10:40,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-10-31 22:10:40,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 75 states have (on average 1.4666666666666666) internal successors, (110), 75 states have internal predecessors, (110), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:10:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 118 transitions. [2024-10-31 22:10:40,638 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 118 transitions. Word has length 11 [2024-10-31 22:10:40,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:10:40,639 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 118 transitions. [2024-10-31 22:10:40,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 118 transitions. [2024-10-31 22:10:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-31 22:10:40,640 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:10:40,640 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:40,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:10:40,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:10:40,842 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:10:40,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:40,843 INFO L85 PathProgramCache]: Analyzing trace with hash 413161586, now seen corresponding path program 1 times [2024-10-31 22:10:40,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:10:40,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232136645] [2024-10-31 22:10:40,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:40,844 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 [2024-10-31 22:10:40,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:10:40,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/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) [2024-10-31 22:10:40,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ee64c8-0aa5-4007-ace8-f674fc3ba0b0/bin/uautomizer-verify-4GaUIPS5ZU/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 [2024-10-31 22:10:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:42,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-31 22:10:42,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:42,539 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 [2024-10-31 22:10:42,564 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 29 treesize of output 13 [2024-10-31 22:10:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:44,019 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:10:44,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:10:44,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232136645] [2024-10-31 22:10:44,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232136645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:44,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:44,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:10:44,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595646434] [2024-10-31 22:10:44,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:44,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:10:44,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:10:44,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:10:44,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:10:44,025 INFO L87 Difference]: Start difference. First operand 82 states and 118 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)