./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:01,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:01,977 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:04:01,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:01,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:02,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:02,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:02,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:02,017 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:02,017 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:02,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:02,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:02,020 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:02,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:02,022 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:02,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:02,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:04:02,023 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:02,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:02,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:02,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:02,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:04:02,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:02,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:04:02,026 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:02,026 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:02,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:02,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:02,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:02,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:02,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:04:02,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:02,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:02,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:02,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:02,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:04:02,031 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:02,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:04:02,032 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:02,032 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:02,032 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:02,033 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:02,033 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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 [2024-10-31 22:04:02,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:02,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:02,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:02,457 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:02,459 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:02,461 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c Unable to find full path for "g++" [2024-10-31 22:04:04,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:05,008 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:05,008 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2024-10-31 22:04:05,016 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/data/9d8fdc936/80725c8065f745918d253b3d54d37482/FLAG51a96c53c [2024-10-31 22:04:05,030 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/data/9d8fdc936/80725c8065f745918d253b3d54d37482 [2024-10-31 22:04:05,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:05,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:05,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:05,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:05,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:05,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d41283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05, skipping insertion in model container [2024-10-31 22:04:05,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,077 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:05,362 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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2024-10-31 22:04:05,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:05,376 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:05,418 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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2024-10-31 22:04:05,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:05,440 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:05,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05 WrapperNode [2024-10-31 22:04:05,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:05,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:05,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:05,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:05,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,486 INFO L138 Inliner]: procedures = 18, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 176 [2024-10-31 22:04:05,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:05,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:05,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:05,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:05,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,507 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,523 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-10-31 22:04:05,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:05,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:05,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:05,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:05,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (1/1) ... [2024-10-31 22:04:05,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:05,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:05,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:05,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:04:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:04:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:04:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:04:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:04:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-31 22:04:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-31 22:04:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-31 22:04:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-31 22:04:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:04:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:04:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:04:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:04:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-31 22:04:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-31 22:04:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-31 22:04:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-31 22:04:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:05,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:04:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:04:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:04:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:04:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:04:05,724 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:05,727 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:06,046 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-10-31 22:04:06,047 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:06,068 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:06,068 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-31 22:04:06,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:06 BoogieIcfgContainer [2024-10-31 22:04:06,069 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:06,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:06,072 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:06,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:06,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:05" (1/3) ... [2024-10-31 22:04:06,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552eb1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:06, skipping insertion in model container [2024-10-31 22:04:06,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:05" (2/3) ... [2024-10-31 22:04:06,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552eb1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:06, skipping insertion in model container [2024-10-31 22:04:06,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:06" (3/3) ... [2024-10-31 22:04:06,085 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2024-10-31 22:04:06,110 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:06,110 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:04:06,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:06,188 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;@7687d50a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:06,188 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:04:06,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 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 22:04:06,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-31 22:04:06,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:06,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:06,198 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:04:06,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:06,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1902379920, now seen corresponding path program 1 times [2024-10-31 22:04:06,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:06,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849815220] [2024-10-31 22:04:06,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:06,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:06,425 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 22:04:06,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:06,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849815220] [2024-10-31 22:04:06,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849815220] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:06,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:06,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:06,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807473150] [2024-10-31 22:04:06,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:06,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:04:06,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:06,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:04:06,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:04:06,476 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:06,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:06,504 INFO L93 Difference]: Finished difference Result 90 states and 142 transitions. [2024-10-31 22:04:06,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:04:06,506 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-31 22:04:06,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:06,515 INFO L225 Difference]: With dead ends: 90 [2024-10-31 22:04:06,515 INFO L226 Difference]: Without dead ends: 43 [2024-10-31 22:04:06,518 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 22:04:06,521 INFO L432 NwaCegarLoop]: 64 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, 64 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 22:04:06,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:06,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-31 22:04:06,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-10-31 22:04:06,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 42 states have internal predecessors, (61), 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 22:04:06,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 61 transitions. [2024-10-31 22:04:06,561 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 61 transitions. Word has length 9 [2024-10-31 22:04:06,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:06,562 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 61 transitions. [2024-10-31 22:04:06,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2024-10-31 22:04:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-31 22:04:06,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:06,563 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:06,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:04:06,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:04:06,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:06,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1485970893, now seen corresponding path program 1 times [2024-10-31 22:04:06,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:06,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136691973] [2024-10-31 22:04:06,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:06,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:06,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:04:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:04:06,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:04:06,725 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:04:06,727 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 22:04:06,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:04:06,732 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-31 22:04:06,755 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:04:06,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:04:06 BoogieIcfgContainer [2024-10-31 22:04:06,759 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:04:06,760 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:04:06,760 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:04:06,760 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:04:06,761 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:06" (3/4) ... [2024-10-31 22:04:06,764 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:04:06,765 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:04:06,766 INFO L158 Benchmark]: Toolchain (without parser) took 1732.02ms. Allocated memory was 140.5MB in the beginning and 197.1MB in the end (delta: 56.6MB). Free memory was 105.4MB in the beginning and 151.2MB in the end (delta: -45.8MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,766 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 140.5MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:06,767 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.73ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 90.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.27ms. Allocated memory is still 140.5MB. Free memory was 90.8MB in the beginning and 88.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,768 INFO L158 Benchmark]: Boogie Preprocessor took 56.98ms. Allocated memory is still 140.5MB. Free memory was 88.7MB in the beginning and 85.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,769 INFO L158 Benchmark]: RCFGBuilder took 524.15ms. Allocated memory is still 140.5MB. Free memory was 85.6MB in the beginning and 67.1MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:04:06,769 INFO L158 Benchmark]: TraceAbstraction took 686.88ms. Allocated memory was 140.5MB in the beginning and 197.1MB in the end (delta: 56.6MB). Free memory was 66.6MB in the beginning and 152.3MB in the end (delta: -85.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:06,770 INFO L158 Benchmark]: Witness Printer took 5.56ms. Allocated memory is still 197.1MB. Free memory was 152.3MB in the beginning and 151.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:04:06,777 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 140.5MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.73ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 90.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.27ms. Allocated memory is still 140.5MB. Free memory was 90.8MB in the beginning and 88.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.98ms. Allocated memory is still 140.5MB. Free memory was 88.7MB in the beginning and 85.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 524.15ms. Allocated memory is still 140.5MB. Free memory was 85.6MB in the beginning and 67.1MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 686.88ms. Allocated memory was 140.5MB in the beginning and 197.1MB in the end (delta: 56.6MB). Free memory was 66.6MB in the beginning and 152.3MB in the end (delta: -85.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.56ms. Allocated memory is still 197.1MB. Free memory was 152.3MB in the beginning and 151.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 127]: 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 113, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L122] float x = -1.0f / 0.0f; [L123] CALL, EXPR __ieee754_logf(x) [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=33554442, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (ix) = gf_u.word [L44] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ix=0, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=33554442, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=33554442, zero_log=0] [L123] RET, EXPR __ieee754_logf(x) [L123] float res = __ieee754_logf(x); [L126] CALL, EXPR isnan_float(res) [L113] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \result=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L126] RET, EXPR isnan_float(res) [L126] COND TRUE !isnan_float(res) [L127] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 64 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, 64 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=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-31 22:04:06,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:09,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:09,546 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-31 22:04:09,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:09,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:09,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:09,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:09,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:09,598 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:09,599 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:09,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:09,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:09,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:09,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:09,602 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:09,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:09,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:04:09,605 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:09,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:09,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:09,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:04:09,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:09,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:04:09,607 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:04:09,607 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 22:04:09,608 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:09,608 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 22:04:09,608 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:09,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:09,609 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:09,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:09,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:09,610 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:04:09,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:09,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:09,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:09,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:09,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:04:09,615 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 22:04:09,616 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 22:04:09,616 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:09,617 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:09,618 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:09,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:09,618 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 22:04:09,618 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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 [2024-10-31 22:04:10,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:10,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:10,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:10,082 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:10,083 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:10,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c Unable to find full path for "g++" [2024-10-31 22:04:12,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:12,599 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:12,599 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2024-10-31 22:04:12,609 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/data/9b29e4dfb/735a5f8da6424febb4dd0aeef499c026/FLAG94c6557b8 [2024-10-31 22:04:12,931 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/data/9b29e4dfb/735a5f8da6424febb4dd0aeef499c026 [2024-10-31 22:04:12,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:12,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:12,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:12,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:12,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:12,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:12" (1/1) ... [2024-10-31 22:04:12,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0867c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:12, skipping insertion in model container [2024-10-31 22:04:12,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:12" (1/1) ... [2024-10-31 22:04:12,977 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:13,214 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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2024-10-31 22:04:13,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:13,235 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:13,277 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_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c[3250,3263] [2024-10-31 22:04:13,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:13,327 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:13,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13 WrapperNode [2024-10-31 22:04:13,328 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:13,329 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:13,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:13,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:13,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,435 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 142 [2024-10-31 22:04:13,436 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:13,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:13,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:13,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:13,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,456 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,481 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-10-31 22:04:13,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:13,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:13,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:13,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:13,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (1/1) ... [2024-10-31 22:04:13,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:13,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:13,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:13,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 22:04:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-31 22:04:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-31 22:04:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-31 22:04:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:04:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-10-31 22:04:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-10-31 22:04:13,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-10-31 22:04:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-10-31 22:04:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-31 22:04:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-31 22:04:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-31 22:04:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-31 22:04:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:13,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-10-31 22:04:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-10-31 22:04:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-10-31 22:04:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-10-31 22:04:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-31 22:04:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-31 22:04:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-31 22:04:13,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-31 22:04:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:04:13,772 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:13,776 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:41,039 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-10-31 22:04:41,040 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:41,066 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:41,071 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-31 22:04:41,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:41 BoogieIcfgContainer [2024-10-31 22:04:41,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:41,074 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:41,080 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:41,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:41,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:12" (1/3) ... [2024-10-31 22:04:41,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6338645b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:41, skipping insertion in model container [2024-10-31 22:04:41,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:13" (2/3) ... [2024-10-31 22:04:41,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6338645b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:41, skipping insertion in model container [2024-10-31 22:04:41,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:41" (3/3) ... [2024-10-31 22:04:41,100 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2024-10-31 22:04:41,135 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:41,135 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:04:41,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:41,225 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;@250b23c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:41,226 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:04:41,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 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 22:04:41,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-31 22:04:41,239 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:41,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:41,240 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:04:41,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:41,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2024-10-31 22:04:41,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:04:41,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238587104] [2024-10-31 22:04:41,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:41,265 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 22:04:41,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:04:41,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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 22:04:41,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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 22:04:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:41,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-31 22:04:41,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:41,826 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 22:04:41,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:41,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:04:41,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238587104] [2024-10-31 22:04:41,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238587104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:41,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:41,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:41,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310377265] [2024-10-31 22:04:41,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:41,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:04:41,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:04:41,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:04:41,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:04:41,866 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:41,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:41,884 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2024-10-31 22:04:41,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:04:41,887 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-31 22:04:41,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:41,897 INFO L225 Difference]: With dead ends: 58 [2024-10-31 22:04:41,898 INFO L226 Difference]: Without dead ends: 27 [2024-10-31 22:04:41,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:04:41,909 INFO L432 NwaCegarLoop]: 40 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, 40 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 22:04:41,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:41,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-31 22:04:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-10-31 22:04:41,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 states have internal predecessors, (37), 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 22:04:41,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2024-10-31 22:04:41,951 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2024-10-31 22:04:41,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:41,951 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2024-10-31 22:04:41,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:41,954 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2024-10-31 22:04:41,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-31 22:04:41,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:41,955 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:41,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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)] Ended with exit code 0 [2024-10-31 22:04:42,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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 22:04:42,157 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:04:42,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:42,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2024-10-31 22:04:42,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:04:42,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926040822] [2024-10-31 22:04:42,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:42,161 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 22:04:42,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:04:42,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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 22:04:42,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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 22:04:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:42,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:04:42,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:42,947 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 22:04:42,948 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:42,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:04:42,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926040822] [2024-10-31 22:04:42,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1926040822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:42,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:42,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:42,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305465850] [2024-10-31 22:04:42,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:42,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:42,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:04:42,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:42,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:42,952 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:43,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:43,597 INFO L93 Difference]: Finished difference Result 32 states and 41 transitions. [2024-10-31 22:04:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:43,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-31 22:04:43,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:43,599 INFO L225 Difference]: With dead ends: 32 [2024-10-31 22:04:43,599 INFO L226 Difference]: Without dead ends: 12 [2024-10-31 22:04:43,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:43,601 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:43,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 16 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 22:04:43,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-10-31 22:04:43,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-31 22:04:43,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 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 22:04:43,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2024-10-31 22:04:43,607 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2024-10-31 22:04:43,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:43,608 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2024-10-31 22:04:43,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:43,610 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2024-10-31 22:04:43,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:04:43,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:43,611 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:43,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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)] Ended with exit code 0 [2024-10-31 22:04:43,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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 22:04:43,812 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:04:43,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:43,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2024-10-31 22:04:43,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-31 22:04:43,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079277296] [2024-10-31 22:04:43,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:43,816 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 22:04:43,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/bin/uautomizer-verify-4GaUIPS5ZU/mathsat [2024-10-31 22:04:43,817 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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 22:04:43,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fff92cef-3d82-4e83-a65b-8fe9e9a63c85/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 (4)] Waiting until timeout for monitored process [2024-10-31 22:04:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:44,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:04:44,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:45,298 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 22:04:45,299 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:45,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-31 22:04:45,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079277296] [2024-10-31 22:04:45,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079277296] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:45,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:45,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:04:45,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291764150] [2024-10-31 22:04:45,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:45,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:04:45,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-31 22:04:45,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:04:45,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:04:45,302 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 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)