./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.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_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0dfb2113d8764001f24e371804ea35e94ffa74ed6e12f7e3ee8a4aaf8056f901 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:20,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:21,035 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:24:21,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:21,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:21,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:21,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:21,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:21,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:21,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:21,076 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:21,077 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:21,077 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:21,077 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:24:21,078 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:21,078 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:21,078 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:24:21,078 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:24:21,079 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:21,079 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:24:21,079 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:24:21,084 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:24:21,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:21,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:21,085 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:24:21,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:24:21,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:24:21,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:21,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:21,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:21,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:21,087 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:21,087 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:24:21,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:21,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:21,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:21,090 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:21,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:21,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:21,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:21,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:21,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:21,091 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:24:21,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:24:21,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:21,092 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:21,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:21,093 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dfb2113d8764001f24e371804ea35e94ffa74ed6e12f7e3ee8a4aaf8056f901 [2024-11-02 12:24:21,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:21,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:21,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:21,428 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:21,429 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:21,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c Unable to find full path for "g++" [2024-11-02 12:24:23,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:23,782 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:23,782 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2024-11-02 12:24:23,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/data/cd7c25ce7/36ac8b3cdb5140eb97061854b0afe55d/FLAG106dca7e4 [2024-11-02 12:24:23,819 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/data/cd7c25ce7/36ac8b3cdb5140eb97061854b0afe55d [2024-11-02 12:24:23,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:23,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:23,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:23,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:23,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:23,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:23" (1/1) ... [2024-11-02 12:24:23,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328cf99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:23, skipping insertion in model container [2024-11-02 12:24:23,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:23" (1/1) ... [2024-11-02 12:24:23,882 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:24,180 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_6c000f67-e9f3-44b5-b009-baaeb7d13878/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2024-11-02 12:24:24,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:24,203 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:24,266 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_6c000f67-e9f3-44b5-b009-baaeb7d13878/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2024-11-02 12:24:24,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:24,307 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:24,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24 WrapperNode [2024-11-02 12:24:24,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:24,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:24,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:24,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:24,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (1/1) ... [2024-11-02 12:24:24,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (1/1) ... [2024-11-02 12:24:24,372 INFO L138 Inliner]: procedures = 22, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 389 [2024-11-02 12:24:24,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:24,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:24,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:24,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:24,385 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (1/1) ... [2024-11-02 12:24:24,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (1/1) ... [2024-11-02 12:24:24,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (1/1) ... [2024-11-02 12:24:24,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (1/1) ... [2024-11-02 12:24:24,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (1/1) ... [2024-11-02 12:24:24,415 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (1/1) ... [2024-11-02 12:24:24,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (1/1) ... [2024-11-02 12:24:24,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (1/1) ... [2024-11-02 12:24:24,427 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:24,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:24,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:24,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:24,429 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (1/1) ... [2024-11-02 12:24:24,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:24,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:24,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:24,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:24:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-02 12:24:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:24:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-02 12:24:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:24:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2024-11-02 12:24:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2024-11-02 12:24:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-02 12:24:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2024-11-02 12:24:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2024-11-02 12:24:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:24:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-02 12:24:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:24:24,640 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:24,643 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:25,469 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2024-11-02 12:24:25,469 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:25,754 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:25,754 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-02 12:24:25,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:25 BoogieIcfgContainer [2024-11-02 12:24:25,755 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:25,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:25,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:25,761 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:25,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:23" (1/3) ... [2024-11-02 12:24:25,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68908b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:25, skipping insertion in model container [2024-11-02 12:24:25,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:24" (2/3) ... [2024-11-02 12:24:25,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68908b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:25, skipping insertion in model container [2024-11-02 12:24:25,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:25" (3/3) ... [2024-11-02 12:24:25,765 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2024-11-02 12:24:25,786 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:25,786 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:24:25,946 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:24:25,954 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=FINITE_AUTOMATA, 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;@23a3feb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:24:25,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:24:25,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 72 states have (on average 1.6944444444444444) internal successors, (122), 73 states have internal predecessors, (122), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-02 12:24:25,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-02 12:24:25,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:25,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:25,969 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:25,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:25,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1539533545, now seen corresponding path program 1 times [2024-11-02 12:24:25,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:25,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485193335] [2024-11-02 12:24:25,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:25,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:26,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:24:26,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:26,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485193335] [2024-11-02 12:24:26,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485193335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:26,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:26,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:24:26,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222697339] [2024-11-02 12:24:26,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:26,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:24:26,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:24:26,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:24:26,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:24:26,426 INFO L87 Difference]: Start difference. First operand has 80 states, 72 states have (on average 1.6944444444444444) internal successors, (122), 73 states have internal predecessors, (122), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:24:26,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:26,714 INFO L93 Difference]: Finished difference Result 159 states and 263 transitions. [2024-11-02 12:24:26,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:24:26,716 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-02 12:24:26,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:26,726 INFO L225 Difference]: With dead ends: 159 [2024-11-02 12:24:26,727 INFO L226 Difference]: Without dead ends: 77 [2024-11-02 12:24:26,732 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 [2024-11-02 12:24:26,737 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:26,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:24:26,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-02 12:24:26,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-02 12:24:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 70 states have internal predecessors, (97), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-02 12:24:26,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 105 transitions. [2024-11-02 12:24:26,794 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 105 transitions. Word has length 13 [2024-11-02 12:24:26,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:26,796 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 105 transitions. [2024-11-02 12:24:26,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:24:26,797 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 105 transitions. [2024-11-02 12:24:26,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 12:24:26,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:26,798 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:26,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:24:26,799 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:26,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:26,800 INFO L85 PathProgramCache]: Analyzing trace with hash -120045004, now seen corresponding path program 1 times [2024-11-02 12:24:26,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:26,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089729580] [2024-11-02 12:24:26,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:26,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:27,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:24:27,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:27,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089729580] [2024-11-02 12:24:27,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089729580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:27,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:27,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:24:27,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369596876] [2024-11-02 12:24:27,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:27,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:24:27,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:24:27,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:24:27,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:27,027 INFO L87 Difference]: Start difference. First operand 77 states and 105 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:24:27,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:27,281 INFO L93 Difference]: Finished difference Result 146 states and 201 transitions. [2024-11-02 12:24:27,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:24:27,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-02 12:24:27,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:27,283 INFO L225 Difference]: With dead ends: 146 [2024-11-02 12:24:27,284 INFO L226 Difference]: Without dead ends: 77 [2024-11-02 12:24:27,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:27,285 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:27,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:24:27,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-02 12:24:27,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-02 12:24:27,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 70 states have internal predecessors, (96), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-02 12:24:27,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 104 transitions. [2024-11-02 12:24:27,308 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 104 transitions. Word has length 16 [2024-11-02 12:24:27,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:27,308 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 104 transitions. [2024-11-02 12:24:27,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:24:27,308 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 104 transitions. [2024-11-02 12:24:27,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-02 12:24:27,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:27,309 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:27,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:24:27,310 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:27,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:27,314 INFO L85 PathProgramCache]: Analyzing trace with hash -520677984, now seen corresponding path program 1 times [2024-11-02 12:24:27,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:27,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139474569] [2024-11-02 12:24:27,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:27,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:24:27,779 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:24:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:24:28,083 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:24:28,085 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:24:28,086 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:24:28,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:24:28,092 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-02 12:24:28,150 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:24:28,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:24:28 BoogieIcfgContainer [2024-11-02 12:24:28,157 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:24:28,158 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:24:28,159 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:24:28,159 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:24:28,161 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:25" (3/4) ... [2024-11-02 12:24:28,164 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:24:28,165 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:24:28,166 INFO L158 Benchmark]: Toolchain (without parser) took 4341.24ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 119.9MB in the beginning and 153.6MB in the end (delta: -33.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-11-02 12:24:28,167 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:28,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.92ms. Allocated memory is still 155.2MB. Free memory was 119.7MB in the beginning and 102.3MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-02 12:24:28,169 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.63ms. Allocated memory is still 155.2MB. Free memory was 102.3MB in the beginning and 98.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:24:28,170 INFO L158 Benchmark]: Boogie Preprocessor took 53.61ms. Allocated memory is still 155.2MB. Free memory was 98.9MB in the beginning and 95.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:24:28,170 INFO L158 Benchmark]: RCFGBuilder took 1327.33ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 53.1MB in the end (delta: 42.6MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2024-11-02 12:24:28,172 INFO L158 Benchmark]: TraceAbstraction took 2400.27ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 52.1MB in the beginning and 153.6MB in the end (delta: -101.5MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-11-02 12:24:28,173 INFO L158 Benchmark]: Witness Printer took 7.57ms. Allocated memory is still 195.0MB. Free memory is still 153.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:28,178 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.92ms. Allocated memory is still 155.2MB. Free memory was 119.7MB in the beginning and 102.3MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.63ms. Allocated memory is still 155.2MB. Free memory was 102.3MB in the beginning and 98.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.61ms. Allocated memory is still 155.2MB. Free memory was 98.9MB in the beginning and 95.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1327.33ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 53.1MB in the end (delta: 42.6MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2400.27ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 52.1MB in the beginning and 153.6MB in the end (delta: -101.5MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Witness Printer took 7.57ms. Allocated memory is still 195.0MB. Free memory is still 153.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 288]: 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 bitwiseOr at line 163, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 287. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L278] double x = __VERIFIER_nondet_double(); [L279] double y = 1.0 / 0.0; [L282] CALL, EXPR isfinite_double(x) [L262] __int32_t hx; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000046, zero_atan2=0] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L282] RET, EXPR isfinite_double(x) [L282] isfinite_double(x) && isinf_double(y) [L282] CALL, EXPR isinf_double(y) [L248] __int32_t hx, lx; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000049, zero_atan2=0] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] EXPR lx | (-lx) [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] EXPR hx | (-hx) [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L282] RET, EXPR isinf_double(y) [L282] isfinite_double(x) && isinf_double(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000046, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000049, zero_atan2=0] [L282] COND TRUE isfinite_double(x) && isinf_double(y) [L284] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000046, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000049, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435072, ix=2146435072, lx=2147483647, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000046, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000049, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163] EXPR lx | -lx [L163] EXPR ix | ((lx | -lx) >> 31) [L163-L164] ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435072, hy=-2147483647, ix=2146435072, iy=1, lx=2147483647, ly=4294967295, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000046, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000049, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435072, hy=-2147483647, ix=2146435072, iy=1, lx=2147483647, ly=4294967295, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000046, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000049, zero_atan2=0] [L284] RET, EXPR __ieee754_atan2(y, x) [L284] double res = __ieee754_atan2(y, x); [L287] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L288] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 267 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 181 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2024-11-02 12:24:28,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0dfb2113d8764001f24e371804ea35e94ffa74ed6e12f7e3ee8a4aaf8056f901 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:30,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:30,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 12:24:30,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:30,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:30,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:30,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:30,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:30,888 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:30,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:30,891 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:30,891 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:30,891 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:30,892 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:30,892 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:30,892 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:30,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:30,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:30,897 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:24:30,898 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:24:30,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:30,899 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:30,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:30,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:30,900 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:24:30,900 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:24:30,901 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:30,901 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:24:30,901 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:24:30,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:30,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:30,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:30,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:24:30,903 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:30,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:30,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:30,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:30,904 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:30,905 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:30,905 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:24:30,905 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:24:30,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:30,906 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:30,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:30,907 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dfb2113d8764001f24e371804ea35e94ffa74ed6e12f7e3ee8a4aaf8056f901 [2024-11-02 12:24:31,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:31,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:31,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:31,361 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:31,362 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:31,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c Unable to find full path for "g++" [2024-11-02 12:24:33,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:33,742 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:33,743 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2024-11-02 12:24:33,752 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/data/9caef3dfb/4a7d66cdeb254d169e3f744606bd4831/FLAG807c126f4 [2024-11-02 12:24:33,770 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/data/9caef3dfb/4a7d66cdeb254d169e3f744606bd4831 [2024-11-02 12:24:33,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:33,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:33,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:33,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:33,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:33,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:33" (1/1) ... [2024-11-02 12:24:33,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452419fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:33, skipping insertion in model container [2024-11-02 12:24:33,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:33" (1/1) ... [2024-11-02 12:24:33,817 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:34,081 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_6c000f67-e9f3-44b5-b009-baaeb7d13878/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2024-11-02 12:24:34,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:34,105 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:34,166 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_6c000f67-e9f3-44b5-b009-baaeb7d13878/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2024-11-02 12:24:34,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:34,195 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:34,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34 WrapperNode [2024-11-02 12:24:34,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:34,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:34,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:34,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:34,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (1/1) ... [2024-11-02 12:24:34,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (1/1) ... [2024-11-02 12:24:34,301 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 279 [2024-11-02 12:24:34,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:34,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:34,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:34,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:34,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (1/1) ... [2024-11-02 12:24:34,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (1/1) ... [2024-11-02 12:24:34,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (1/1) ... [2024-11-02 12:24:34,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (1/1) ... [2024-11-02 12:24:34,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (1/1) ... [2024-11-02 12:24:34,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (1/1) ... [2024-11-02 12:24:34,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (1/1) ... [2024-11-02 12:24:34,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (1/1) ... [2024-11-02 12:24:34,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:34,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:34,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:34,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:34,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (1/1) ... [2024-11-02 12:24:34,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:34,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:34,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:34,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:34,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:34,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-02 12:24:34,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2024-11-02 12:24:34,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-02 12:24:34,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:24:34,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:24:34,502 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2024-11-02 12:24:34,502 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2024-11-02 12:24:34,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2024-11-02 12:24:34,503 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2024-11-02 12:24:34,503 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2024-11-02 12:24:34,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-02 12:24:34,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:34,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:34,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-02 12:24:34,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:24:34,685 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:34,687 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:25:00,898 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-02 12:25:00,898 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:25:00,911 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:25:00,912 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-02 12:25:00,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:25:00 BoogieIcfgContainer [2024-11-02 12:25:00,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:25:00,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:25:00,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:25:00,918 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:25:00,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:33" (1/3) ... [2024-11-02 12:25:00,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d70b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:25:00, skipping insertion in model container [2024-11-02 12:25:00,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:34" (2/3) ... [2024-11-02 12:25:00,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d70b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:25:00, skipping insertion in model container [2024-11-02 12:25:00,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:25:00" (3/3) ... [2024-11-02 12:25:00,922 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2024-11-02 12:25:00,938 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:25:00,938 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:25:00,999 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:25:01,007 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=FINITE_AUTOMATA, 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;@402caad6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:25:01,007 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:25:01,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 89 states have (on average 1.6629213483146068) internal successors, (148), 90 states have internal predecessors, (148), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-02 12:25:01,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-02 12:25:01,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:25:01,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:25:01,018 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:25:01,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:25:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1890267110, now seen corresponding path program 1 times [2024-11-02 12:25:01,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:25:01,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963438434] [2024-11-02 12:25:01,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:25:01,036 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 [2024-11-02 12:25:01,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:25:01,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:25:01,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c000f67-e9f3-44b5-b009-baaeb7d13878/bin/utaipan-verify-DbMuA5NWw2/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