./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0220b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0220b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu --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 eba0d69032dcca3a4fd537674be713f074cf8e41be9cc562a35b9ffa9def96ba --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:09:27,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:09:27,566 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:09:27,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:09:27,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:09:27,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:09:27,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:09:27,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:09:27,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:09:27,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:09:27,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:09:27,622 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:09:27,623 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:09:27,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:09:27,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:09:27,624 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:09:27,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:09:27,626 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:09:27,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:09:27,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:09:27,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:09:27,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:09:27,629 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:09:27,629 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:09:27,630 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:09:27,630 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:09:27,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:09:27,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:09:27,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:27,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:09:27,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:09:27,634 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:09:27,634 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:09:27,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:09:27,635 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:09:27,635 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:09:27,635 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:09:27,635 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:09:27,636 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:09:27,636 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_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eba0d69032dcca3a4fd537674be713f074cf8e41be9cc562a35b9ffa9def96ba [2023-11-19 07:09:27,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:09:27,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:09:27,998 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:09:28,001 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:09:28,002 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:09:28,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/float-newlib/float_req_bl_0220b.c [2023-11-19 07:09:31,022 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:09:31,360 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:09:31,361 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/sv-benchmarks/c/float-newlib/float_req_bl_0220b.c [2023-11-19 07:09:31,373 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/data/28f91d86d/d85ad0f38ff84381b5dbffa3e07205a9/FLAG788906f10 [2023-11-19 07:09:31,388 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/data/28f91d86d/d85ad0f38ff84381b5dbffa3e07205a9 [2023-11-19 07:09:31,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:09:31,393 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:09:31,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:31,394 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:09:31,400 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:09:31,401 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,402 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ae00e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31, skipping insertion in model container [2023-11-19 07:09:31,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,448 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:09:31,785 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/sv-benchmarks/c/float-newlib/float_req_bl_0220b.c[15845,15858] [2023-11-19 07:09:31,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:31,848 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:09:32,005 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/sv-benchmarks/c/float-newlib/float_req_bl_0220b.c[15845,15858] [2023-11-19 07:09:32,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:32,059 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:09:32,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32 WrapperNode [2023-11-19 07:09:32,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:32,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:32,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:09:32,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:09:32,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,230 INFO L138 Inliner]: procedures = 25, calls = 495, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1199 [2023-11-19 07:09:32,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:32,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:09:32,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:09:32,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:09:32,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,410 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,463 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:09:32,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:09:32,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:09:32,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:09:32,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (1/1) ... [2023-11-19 07:09:32,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:32,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:32,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:09:32,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:09:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2023-11-19 07:09:32,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2023-11-19 07:09:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:09:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:09:32,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 07:09:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:09:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 07:09:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2023-11-19 07:09:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2023-11-19 07:09:32,561 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2023-11-19 07:09:32,561 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2023-11-19 07:09:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:09:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 07:09:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2023-11-19 07:09:32,562 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2023-11-19 07:09:32,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:09:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:09:32,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:09:32,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:09:32,728 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:09:32,731 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:09:34,229 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:09:34,252 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:09:34,252 INFO L302 CfgBuilder]: Removed 61 assume(true) statements. [2023-11-19 07:09:34,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:34 BoogieIcfgContainer [2023-11-19 07:09:34,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:09:34,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:09:34,270 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:09:34,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:09:34,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:09:31" (1/3) ... [2023-11-19 07:09:34,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19790fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:34, skipping insertion in model container [2023-11-19 07:09:34,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:32" (2/3) ... [2023-11-19 07:09:34,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19790fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:34, skipping insertion in model container [2023-11-19 07:09:34,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:34" (3/3) ... [2023-11-19 07:09:34,278 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0220b.c [2023-11-19 07:09:34,298 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:09:34,299 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:09:34,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:09:34,386 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@47ee78b0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:09:34,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:09:34,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 279 states, 261 states have (on average 1.6628352490421456) internal successors, (434), 262 states have internal predecessors, (434), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:09:34,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:09:34,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:34,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:34,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:09:34,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:34,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1426510435, now seen corresponding path program 1 times [2023-11-19 07:09:34,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:34,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997178927] [2023-11-19 07:09:34,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:34,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:34,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:09:34,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:34,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997178927] [2023-11-19 07:09:34,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997178927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:34,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:34,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:09:34,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577527685] [2023-11-19 07:09:34,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:34,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:09:34,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:34,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:09:34,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:09:34,960 INFO L87 Difference]: Start difference. First operand has 279 states, 261 states have (on average 1.6628352490421456) internal successors, (434), 262 states have internal predecessors, (434), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2023-11-19 07:09:35,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:35,027 INFO L93 Difference]: Finished difference Result 556 states and 926 transitions. [2023-11-19 07:09:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:09:35,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 [2023-11-19 07:09:35,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:35,042 INFO L225 Difference]: With dead ends: 556 [2023-11-19 07:09:35,043 INFO L226 Difference]: Without dead ends: 276 [2023-11-19 07:09:35,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:09:35,054 INFO L413 NwaCegarLoop]: 396 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, 396 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 [2023-11-19 07:09:35,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:09:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2023-11-19 07:09:35,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2023-11-19 07:09:35,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 259 states have (on average 1.4247104247104247) internal successors, (369), 259 states have internal predecessors, (369), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:09:35,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 393 transitions. [2023-11-19 07:09:35,125 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 393 transitions. Word has length 10 [2023-11-19 07:09:35,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:35,125 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 393 transitions. [2023-11-19 07:09:35,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2023-11-19 07:09:35,126 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 393 transitions. [2023-11-19 07:09:35,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:09:35,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:35,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:35,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:09:35,128 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:09:35,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:35,129 INFO L85 PathProgramCache]: Analyzing trace with hash -46406241, now seen corresponding path program 1 times [2023-11-19 07:09:35,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:35,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624669078] [2023-11-19 07:09:35,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:35,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:09:35,258 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:09:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:09:35,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:09:35,368 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:09:35,370 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:09:35,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:09:35,375 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:09:35,379 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:09:35,417 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short145 could not be translated [2023-11-19 07:09:35,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:09:35 BoogieIcfgContainer [2023-11-19 07:09:35,432 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:09:35,432 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:09:35,432 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:09:35,433 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:09:35,433 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:34" (3/4) ... [2023-11-19 07:09:35,435 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:09:35,436 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:09:35,438 INFO L158 Benchmark]: Toolchain (without parser) took 4044.57ms. Allocated memory was 184.5MB in the beginning and 228.6MB in the end (delta: 44.0MB). Free memory was 154.8MB in the beginning and 129.3MB in the end (delta: 25.5MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,438 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 130.0MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:09:35,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 667.32ms. Allocated memory is still 184.5MB. Free memory was 154.6MB in the beginning and 126.5MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 167.81ms. Allocated memory is still 184.5MB. Free memory was 126.5MB in the beginning and 119.1MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,440 INFO L158 Benchmark]: Boogie Preprocessor took 248.69ms. Allocated memory is still 184.5MB. Free memory was 119.1MB in the beginning and 144.8MB in the end (delta: -25.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,441 INFO L158 Benchmark]: RCFGBuilder took 1784.10ms. Allocated memory is still 184.5MB. Free memory was 143.7MB in the beginning and 87.0MB in the end (delta: 56.7MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,442 INFO L158 Benchmark]: TraceAbstraction took 1162.12ms. Allocated memory was 184.5MB in the beginning and 228.6MB in the end (delta: 44.0MB). Free memory was 87.0MB in the beginning and 129.3MB in the end (delta: -42.3MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,442 INFO L158 Benchmark]: Witness Printer took 4.41ms. Allocated memory is still 228.6MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:09:35,445 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 130.0MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 667.32ms. Allocated memory is still 184.5MB. Free memory was 154.6MB in the beginning and 126.5MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 167.81ms. Allocated memory is still 184.5MB. Free memory was 126.5MB in the beginning and 119.1MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 248.69ms. Allocated memory is still 184.5MB. Free memory was 119.1MB in the beginning and 144.8MB in the end (delta: -25.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1784.10ms. Allocated memory is still 184.5MB. Free memory was 143.7MB in the beginning and 87.0MB in the end (delta: 56.7MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1162.12ms. Allocated memory was 184.5MB in the beginning and 228.6MB in the end (delta: 44.0MB). Free memory was 87.0MB in the beginning and 129.3MB in the end (delta: -42.3MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Witness Printer took 4.41ms. Allocated memory is still 228.6MB. Free memory is still 129.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short145 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 629]: 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 628, overapproximation of someUnaryDOUBLEoperation at line 507, overapproximation of someUnaryFLOAToperation at line 624, overapproximation of someBinaryArithmeticFLOAToperation at line 599. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; [L90-L92] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L165] static const int init_jk_krempio[] = {4, 7, 9}; [L167-L171] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L173-L175] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L350-L368] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L370-L376] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L378-L387] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L507-L510] static const float half_ksin = 5.0000000000e-01, S1_ksin = -1.6666667163e-01, S2_ksin = 8.3333337680e-03, S3_ksin = -1.9841270114e-04, S4_ksin = 2.7557314297e-06, S5_ksin = -2.5050759689e-08, S6_ksin = 1.5896910177e-10; [L534-L537] static const float one_kcos = 1.0000000000e+00, C1_kcos = 4.1666667908e-02, C2_kcos = -1.3888889225e-03, C3_kcos = 2.4801587642e-05, C4_kcos = -2.7557314297e-07, C5_kcos = 2.0875723372e-09, C6_kcos = -1.1359647598e-11; [L574-L582] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; VAL [C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_kcos=1, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L624] float x = -0.0f; [L625] CALL, EXPR sin_float(x) [L585] float y[2], z = 0.0; [L586] __int32_t n, ix; VAL [C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, \old(x)=1000000000000000000000000000014, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_kcos=1, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000014, y={14:0}, z=0, zero_krempio=0, zero_rempio=0] [L589] ieee_float_shape_type gf_u; [L590] EXPR gf_u.value = (x) [L591] EXPR gf_u.word [L591] EXPR (ix) = gf_u.word [L588-L592] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, \old(x)=1000000000000000000000000000014, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=-8388608, npio2_hw_rempio={7:0}, one_kcos=1, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000014, y={14:0}, z=0, zero_krempio=0, zero_rempio=0] [L594] ix &= 0x7fffffff VAL [C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, \old(x)=1000000000000000000000000000014, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_kcos=1, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000014, y={14:0}, z=0, zero_krempio=0, zero_rempio=0] [L595] COND FALSE !(ix <= 0x3f490fd8) VAL [C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, \old(x)=1000000000000000000000000000014, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_kcos=1, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000014, y={14:0}, z=0, zero_krempio=0, zero_rempio=0] [L598] COND TRUE !((ix) < 0x7f800000L) [L599] return x - x; [L599] return x - x; VAL [C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, \old(x)=1000000000000000000000000000014, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_kcos=1, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000014, z=0, zero_krempio=0, zero_rempio=0] [L625] RET, EXPR sin_float(x) [L625] float res = sin_float(x); [L628] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_kcos=1, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, res=1000000000000000000000000000012, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000014, zero_krempio=0, zero_rempio=0] [L628] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L629] reach_error() VAL [C1_kcos=10416666977/250000000000, C3_kcos=12400793821/500000000000000, C5_kcos=5218930843/2500000000000000000, PIo2_krempio={5:0}, S2_ksin=1041666721/125000000000, S4_ksin=27557314297/10000000000000000, S6_ksin=15896910177/100000000000000000000, half_ksin=1/2, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_kcos=1, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, res=1000000000000000000000000000012, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000014, zero_krempio=0, zero_rempio=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 279 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, 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, 396 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, 396 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=279occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:09:35,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/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_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0220b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu --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 eba0d69032dcca3a4fd537674be713f074cf8e41be9cc562a35b9ffa9def96ba --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:09:38,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:09:38,321 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:09:38,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:09:38,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:09:38,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:09:38,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:09:38,360 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:09:38,361 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:09:38,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:09:38,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:09:38,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:09:38,364 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:09:38,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:09:38,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:09:38,366 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:09:38,366 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:09:38,367 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:09:38,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:09:38,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:09:38,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:09:38,370 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:09:38,370 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:09:38,371 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:09:38,371 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:09:38,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:09:38,372 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:09:38,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:09:38,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:09:38,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:09:38,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:38,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:09:38,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:09:38,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:09:38,376 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:09:38,376 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:09:38,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:09:38,377 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:09:38,377 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:09:38,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:09:38,378 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:09:38,378 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:09:38,379 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_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eba0d69032dcca3a4fd537674be713f074cf8e41be9cc562a35b9ffa9def96ba [2023-11-19 07:09:38,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:09:38,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:09:38,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:09:38,780 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:09:38,781 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:09:38,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/float-newlib/float_req_bl_0220b.c [2023-11-19 07:09:41,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:09:42,209 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:09:42,210 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/sv-benchmarks/c/float-newlib/float_req_bl_0220b.c [2023-11-19 07:09:42,231 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/data/b75bf6dd0/b67ada1a74544e788606a66f1884958b/FLAGc1084f8d2 [2023-11-19 07:09:42,252 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/data/b75bf6dd0/b67ada1a74544e788606a66f1884958b [2023-11-19 07:09:42,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:09:42,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:09:42,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:42,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:09:42,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:09:42,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:42" (1/1) ... [2023-11-19 07:09:42,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bfb65db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:42, skipping insertion in model container [2023-11-19 07:09:42,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:42" (1/1) ... [2023-11-19 07:09:42,349 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:09:42,713 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/sv-benchmarks/c/float-newlib/float_req_bl_0220b.c[15845,15858] [2023-11-19 07:09:42,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:42,790 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:09:42,910 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/sv-benchmarks/c/float-newlib/float_req_bl_0220b.c[15845,15858] [2023-11-19 07:09:42,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:43,000 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:09:43,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43 WrapperNode [2023-11-19 07:09:43,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:43,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:43,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:09:43,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:09:43,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (1/1) ... [2023-11-19 07:09:43,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (1/1) ... [2023-11-19 07:09:43,195 INFO L138 Inliner]: procedures = 29, calls = 495, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1152 [2023-11-19 07:09:43,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:43,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:09:43,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:09:43,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:09:43,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (1/1) ... [2023-11-19 07:09:43,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (1/1) ... [2023-11-19 07:09:43,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (1/1) ... [2023-11-19 07:09:43,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (1/1) ... [2023-11-19 07:09:43,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (1/1) ... [2023-11-19 07:09:43,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (1/1) ... [2023-11-19 07:09:43,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (1/1) ... [2023-11-19 07:09:43,374 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (1/1) ... [2023-11-19 07:09:43,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:09:43,393 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:09:43,393 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:09:43,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:09:43,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (1/1) ... [2023-11-19 07:09:43,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:43,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:43,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:09:43,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:09:43,470 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2023-11-19 07:09:43,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2023-11-19 07:09:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:09:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:09:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 07:09:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:09:43,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 07:09:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:09:43,473 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2023-11-19 07:09:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2023-11-19 07:09:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2023-11-19 07:09:43,475 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2023-11-19 07:09:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 07:09:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2023-11-19 07:09:43,475 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2023-11-19 07:09:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-19 07:09:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:09:43,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:09:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:09:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:09:43,676 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:09:43,678 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:10:23,036 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:10:23,052 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:10:23,052 INFO L302 CfgBuilder]: Removed 61 assume(true) statements. [2023-11-19 07:10:23,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:10:23 BoogieIcfgContainer [2023-11-19 07:10:23,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:10:23,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:10:23,068 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:10:23,073 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:10:23,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:09:42" (1/3) ... [2023-11-19 07:10:23,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0a8a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:10:23, skipping insertion in model container [2023-11-19 07:10:23,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:43" (2/3) ... [2023-11-19 07:10:23,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0a8a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:10:23, skipping insertion in model container [2023-11-19 07:10:23,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:10:23" (3/3) ... [2023-11-19 07:10:23,079 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0220b.c [2023-11-19 07:10:23,102 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:10:23,102 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:10:23,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:10:23,191 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1439cd43, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:10:23,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:10:23,197 INFO L276 IsEmpty]: Start isEmpty. Operand has 247 states, 229 states have (on average 1.6550218340611353) internal successors, (379), 230 states have internal predecessors, (379), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:10:23,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:10:23,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:23,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:23,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:10:23,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:23,216 INFO L85 PathProgramCache]: Analyzing trace with hash -709853987, now seen corresponding path program 1 times [2023-11-19 07:10:23,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:23,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007755940] [2023-11-19 07:10:23,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:23,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:10:23,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:23,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:10:23,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:10:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:25,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:10:25,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:25,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:10:25,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:10:25,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:10:25,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007755940] [2023-11-19 07:10:25,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007755940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:25,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:25,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:10:25,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057868830] [2023-11-19 07:10:25,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:25,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:10:25,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:10:25,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:10:25,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:10:25,252 INFO L87 Difference]: Start difference. First operand has 247 states, 229 states have (on average 1.6550218340611353) internal successors, (379), 230 states have internal predecessors, (379), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2023-11-19 07:10:25,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:25,351 INFO L93 Difference]: Finished difference Result 492 states and 816 transitions. [2023-11-19 07:10:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:10:25,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 [2023-11-19 07:10:25,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:25,369 INFO L225 Difference]: With dead ends: 492 [2023-11-19 07:10:25,370 INFO L226 Difference]: Without dead ends: 244 [2023-11-19 07:10:25,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:10:25,381 INFO L413 NwaCegarLoop]: 341 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, 341 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 [2023-11-19 07:10:25,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:10:25,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-19 07:10:25,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2023-11-19 07:10:25,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 227 states have (on average 1.3832599118942732) internal successors, (314), 227 states have internal predecessors, (314), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:10:25,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 338 transitions. [2023-11-19 07:10:25,502 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 338 transitions. Word has length 10 [2023-11-19 07:10:25,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:25,504 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 338 transitions. [2023-11-19 07:10:25,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2023-11-19 07:10:25,505 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 338 transitions. [2023-11-19 07:10:25,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:10:25,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:25,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:25,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:10:25,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:10:25,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:10:25,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:25,725 INFO L85 PathProgramCache]: Analyzing trace with hash 758830035, now seen corresponding path program 1 times [2023-11-19 07:10:25,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:25,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971804527] [2023-11-19 07:10:25,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:25,727 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:10:25,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:25,760 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:10:25,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:10:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:10:27,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:10:27,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:10:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:10:28,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:10:28,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:10:28,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971804527] [2023-11-19 07:10:28,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971804527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:10:28,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:10:28,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:10:28,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743829114] [2023-11-19 07:10:28,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:10:28,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:10:28,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:10:28,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:10:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:10:28,019 INFO L87 Difference]: Start difference. First operand 244 states and 338 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:10:28,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:10:28,275 INFO L93 Difference]: Finished difference Result 263 states and 359 transitions. [2023-11-19 07:10:28,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:10:28,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 07:10:28,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:10:28,277 INFO L225 Difference]: With dead ends: 263 [2023-11-19 07:10:28,277 INFO L226 Difference]: Without dead ends: 27 [2023-11-19 07:10:28,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:10:28,281 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 7 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:10:28,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 95 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:10:28,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-19 07:10:28,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-19 07:10:28,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:10:28,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-11-19 07:10:28,286 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 11 [2023-11-19 07:10:28,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:10:28,287 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-11-19 07:10:28,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:10:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-11-19 07:10:28,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 07:10:28,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:10:28,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:10:28,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:10:28,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:10:28,516 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:10:28,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:10:28,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1023550529, now seen corresponding path program 1 times [2023-11-19 07:10:28,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:10:28,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281155764] [2023-11-19 07:10:28,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:10:28,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:10:28,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:10:28,520 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:10:28,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7b5affa-1fe3-4588-885d-6924a2ce10b0/bin/uautomizer-verify-uCwYo4JHxu/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