./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 eacc9d6782fe15df62304d6f37a239dbaeef8100e947201f1fc1e382f89b5777 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:05:37,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:05:37,817 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:05:37,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:05:37,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:05:37,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:05:37,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:05:37,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:05:37,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:05:37,859 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:05:37,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:05:37,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:05:37,862 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:05:37,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:05:37,864 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:05:37,865 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:05:37,865 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:05:37,866 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:05:37,866 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:05:37,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:05:37,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:05:37,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:05:37,868 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:05:37,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:05:37,869 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:05:37,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:05:37,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:05:37,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:05:37,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:37,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:05:37,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:05:37,874 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:05:37,874 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:05:37,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:05:37,875 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:05:37,875 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:05:37,875 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:05:37,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:05:37,876 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:05:37,876 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_0019dfdc-812a-483e-9eca-f9e05126d4fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eacc9d6782fe15df62304d6f37a239dbaeef8100e947201f1fc1e382f89b5777 [2023-11-19 08:05:38,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:05:38,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:05:38,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:05:38,257 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:05:38,258 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:05:38,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2023-11-19 08:05:41,495 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:05:41,760 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:05:41,761 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2023-11-19 08:05:41,771 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/data/45fc7574c/6eb7ad31380e4e8695682aa0c511735a/FLAGb5a8bd4cc [2023-11-19 08:05:41,787 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/data/45fc7574c/6eb7ad31380e4e8695682aa0c511735a [2023-11-19 08:05:41,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:05:41,792 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:05:41,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:41,794 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:05:41,801 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:05:41,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:41" (1/1) ... [2023-11-19 08:05:41,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198420c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:41, skipping insertion in model container [2023-11-19 08:05:41,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:41" (1/1) ... [2023-11-19 08:05:41,832 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:05:42,101 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_0019dfdc-812a-483e-9eca-f9e05126d4fc/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2023-11-19 08:05:42,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:42,131 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:05:42,203 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_0019dfdc-812a-483e-9eca-f9e05126d4fc/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2023-11-19 08:05:42,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:42,231 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:05:42,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42 WrapperNode [2023-11-19 08:05:42,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:42,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:42,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:05:42,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:05:42,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (1/1) ... [2023-11-19 08:05:42,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (1/1) ... [2023-11-19 08:05:42,298 INFO L138 Inliner]: procedures = 18, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 163 [2023-11-19 08:05:42,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:42,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:05:42,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:05:42,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:05:42,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (1/1) ... [2023-11-19 08:05:42,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (1/1) ... [2023-11-19 08:05:42,314 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (1/1) ... [2023-11-19 08:05:42,314 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (1/1) ... [2023-11-19 08:05:42,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (1/1) ... [2023-11-19 08:05:42,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (1/1) ... [2023-11-19 08:05:42,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (1/1) ... [2023-11-19 08:05:42,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (1/1) ... [2023-11-19 08:05:42,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:05:42,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:05:42,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:05:42,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:05:42,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (1/1) ... [2023-11-19 08:05:42,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:42,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:42,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:05:42,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:05:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:05:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:05:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:05:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:05:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 08:05:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 08:05:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:05:42,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:05:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:05:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 08:05:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:05:42,609 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:05:42,614 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:05:42,980 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:05:42,987 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:05:42,987 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-19 08:05:42,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:42 BoogieIcfgContainer [2023-11-19 08:05:42,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:05:42,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:05:42,993 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:05:42,998 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:05:42,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:41" (1/3) ... [2023-11-19 08:05:42,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8267dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:42, skipping insertion in model container [2023-11-19 08:05:42,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:42" (2/3) ... [2023-11-19 08:05:43,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8267dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:42, skipping insertion in model container [2023-11-19 08:05:43,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:42" (3/3) ... [2023-11-19 08:05:43,001 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2023-11-19 08:05:43,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:05:43,016 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:05:43,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:05:43,075 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;@67600e5d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:05:43,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:05:43,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 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 08:05:43,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 08:05:43,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:43,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:43,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:43,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:43,094 INFO L85 PathProgramCache]: Analyzing trace with hash 354239179, now seen corresponding path program 1 times [2023-11-19 08:05:43,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:43,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341303577] [2023-11-19 08:05:43,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:43,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:43,364 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 08:05:43,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:43,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341303577] [2023-11-19 08:05:43,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341303577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:05:43,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:05:43,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:05:43,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819664111] [2023-11-19 08:05:43,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:05:43,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:05:43,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:43,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:05:43,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:05:43,418 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:43,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:43,448 INFO L93 Difference]: Finished difference Result 66 states and 106 transitions. [2023-11-19 08:05:43,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:05:43,451 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 08:05:43,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:43,460 INFO L225 Difference]: With dead ends: 66 [2023-11-19 08:05:43,460 INFO L226 Difference]: Without dead ends: 31 [2023-11-19 08:05:43,463 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 08:05:43,469 INFO L413 NwaCegarLoop]: 43 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, 43 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 08:05:43,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:05:43,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-19 08:05:43,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-19 08:05:43,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 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 08:05:43,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2023-11-19 08:05:43,515 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 8 [2023-11-19 08:05:43,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:43,516 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2023-11-19 08:05:43,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:05:43,517 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2023-11-19 08:05:43,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 08:05:43,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:43,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:43,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:05:43,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:05:43,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:43,522 INFO L85 PathProgramCache]: Analyzing trace with hash 324993486, now seen corresponding path program 1 times [2023-11-19 08:05:43,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:43,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112233626] [2023-11-19 08:05:43,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:43,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:05:43,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:05:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:05:43,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:05:43,741 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:05:43,744 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:05:43,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:05:43,752 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 08:05:43,758 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:05:43,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:05:43 BoogieIcfgContainer [2023-11-19 08:05:43,822 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:05:43,823 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:05:43,823 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:05:43,824 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:05:43,824 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:42" (3/4) ... [2023-11-19 08:05:43,830 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:05:43,832 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:05:43,835 INFO L158 Benchmark]: Toolchain (without parser) took 2040.95ms. Allocated memory is still 144.7MB. Free memory was 102.8MB in the beginning and 83.8MB in the end (delta: 18.9MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-11-19 08:05:43,836 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:05:43,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.76ms. Allocated memory is still 144.7MB. Free memory was 102.4MB in the beginning and 90.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:05:43,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.99ms. Allocated memory is still 144.7MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:05:43,845 INFO L158 Benchmark]: Boogie Preprocessor took 36.08ms. Allocated memory is still 144.7MB. Free memory was 88.1MB in the beginning and 86.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:05:43,847 INFO L158 Benchmark]: RCFGBuilder took 654.09ms. Allocated memory is still 144.7MB. Free memory was 86.4MB in the beginning and 113.3MB in the end (delta: -26.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 08:05:43,850 INFO L158 Benchmark]: TraceAbstraction took 829.51ms. Allocated memory is still 144.7MB. Free memory was 112.8MB in the beginning and 83.9MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 08:05:43,851 INFO L158 Benchmark]: Witness Printer took 9.13ms. Allocated memory is still 144.7MB. Free memory was 83.9MB in the beginning and 83.8MB in the end (delta: 110.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:05:43,857 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory is still 49.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.76ms. Allocated memory is still 144.7MB. Free memory was 102.4MB in the beginning and 90.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.99ms. Allocated memory is still 144.7MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.08ms. Allocated memory is still 144.7MB. Free memory was 88.1MB in the beginning and 86.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 654.09ms. Allocated memory is still 144.7MB. Free memory was 86.4MB in the beginning and 113.3MB in the end (delta: -26.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 829.51ms. Allocated memory is still 144.7MB. Free memory was 112.8MB in the beginning and 83.9MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 9.13ms. Allocated memory is still 144.7MB. Free memory was 83.9MB in the beginning and 83.8MB in the end (delta: 110.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 124]: 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 123, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L119] float x = -0.0f; [L120] CALL, EXPR __ieee754_expf(x) [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000001, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000001] [L44] ieee_float_shape_type gf_u; [L45] EXPR gf_u.value = (x) [L46] EXPR gf_u.word [L46] EXPR (sx) = gf_u.word [L43-L47] { ieee_float_shape_type gf_u; gf_u.value = (x); (sx) = gf_u.word; } VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000001, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=2147483647, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000001] [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000001, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx=2147483647, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=2147483647, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000001, xsb=0] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, \old(x)=1000000000000000000000000000001, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx=2147483647, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=2147483647, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000001, xsb=0] [L120] RET, EXPR __ieee754_expf(x) [L120] float res = __ieee754_expf(x); [L123] COND TRUE res != 1.0f VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, res=1000000000000000000000000000002, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000001] [L124] reach_error() VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, res=1000000000000000000000000000002, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000001] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 43 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, 43 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=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 08:05:43,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 eacc9d6782fe15df62304d6f37a239dbaeef8100e947201f1fc1e382f89b5777 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:05:46,725 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:05:46,876 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 08:05:46,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:05:46,886 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:05:46,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:05:46,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:05:46,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:05:46,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:05:46,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:05:46,946 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:05:46,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:05:46,947 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:05:46,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:05:46,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:05:46,950 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:05:46,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:05:46,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:05:46,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:05:46,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:05:46,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:05:46,954 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:05:46,955 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:05:46,955 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:05:46,956 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:05:46,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:05:46,957 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:05:46,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:05:46,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:05:46,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:05:46,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:46,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:05:46,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:05:46,961 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:05:46,962 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:05:46,962 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:05:46,962 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:05:46,963 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:05:46,963 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:05:46,964 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:05:46,965 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:05:46,965 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:05:46,965 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_0019dfdc-812a-483e-9eca-f9e05126d4fc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eacc9d6782fe15df62304d6f37a239dbaeef8100e947201f1fc1e382f89b5777 [2023-11-19 08:05:47,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:05:47,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:05:47,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:05:47,511 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:05:47,511 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:05:47,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2023-11-19 08:05:51,012 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:05:51,336 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:05:51,337 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2023-11-19 08:05:51,347 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/data/8d144ee00/7d2e1fa01949458f9a6492e4b2fe7b6f/FLAG77a6c766e [2023-11-19 08:05:51,366 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/data/8d144ee00/7d2e1fa01949458f9a6492e4b2fe7b6f [2023-11-19 08:05:51,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:05:51,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:05:51,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:51,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:05:51,380 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:05:51,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56616878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51, skipping insertion in model container [2023-11-19 08:05:51,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,413 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:05:51,633 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_0019dfdc-812a-483e-9eca-f9e05126d4fc/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2023-11-19 08:05:51,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:51,663 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:05:51,743 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_0019dfdc-812a-483e-9eca-f9e05126d4fc/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c[3181,3194] [2023-11-19 08:05:51,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:05:51,778 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:05:51,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51 WrapperNode [2023-11-19 08:05:51,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:05:51,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:51,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:05:51,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:05:51,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,871 INFO L138 Inliner]: procedures = 21, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 164 [2023-11-19 08:05:51,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:05:51,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:05:51,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:05:51,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:05:51,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,920 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:05:51,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:05:51,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:05:51,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:05:51,953 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (1/1) ... [2023-11-19 08:05:51,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:05:51,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:51,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:05:52,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:05:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:05:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-19 08:05:52,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:05:52,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:05:52,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 08:05:52,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 08:05:52,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:05:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:05:52,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 08:05:52,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 08:05:52,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:05:52,187 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:05:52,194 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:06:02,054 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:06:02,064 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:06:02,065 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-19 08:06:02,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:02 BoogieIcfgContainer [2023-11-19 08:06:02,069 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:06:02,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:06:02,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:06:02,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:06:02,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:51" (1/3) ... [2023-11-19 08:06:02,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56032341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:02, skipping insertion in model container [2023-11-19 08:06:02,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:51" (2/3) ... [2023-11-19 08:06:02,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56032341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:02, skipping insertion in model container [2023-11-19 08:06:02,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:02" (3/3) ... [2023-11-19 08:06:02,081 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2023-11-19 08:06:02,105 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:06:02,105 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:06:02,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:06:02,168 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;@443f5fe3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:06:02,168 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:06:02,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 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 08:06:02,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 08:06:02,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:02,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:02,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:02,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:02,188 INFO L85 PathProgramCache]: Analyzing trace with hash 354239179, now seen corresponding path program 1 times [2023-11-19 08:06:02,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:02,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86103085] [2023-11-19 08:06:02,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:02,204 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 08:06:02,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:02,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:02,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:02,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 08:06:02,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:02,755 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 08:06:02,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:02,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:02,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86103085] [2023-11-19 08:06:02,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86103085] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:02,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:02,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:06:02,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634700835] [2023-11-19 08:06:02,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:02,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:06:02,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:02,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:06:02,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:06:02,800 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:02,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:02,820 INFO L93 Difference]: Finished difference Result 66 states and 106 transitions. [2023-11-19 08:06:02,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:06:02,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 08:06:02,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:02,832 INFO L225 Difference]: With dead ends: 66 [2023-11-19 08:06:02,832 INFO L226 Difference]: Without dead ends: 31 [2023-11-19 08:06:02,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 08:06:02,840 INFO L413 NwaCegarLoop]: 43 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, 43 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 08:06:02,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:06:02,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-19 08:06:02,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-19 08:06:02,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 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 08:06:02,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2023-11-19 08:06:02,876 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 8 [2023-11-19 08:06:02,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:02,877 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2023-11-19 08:06:02,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:02,877 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2023-11-19 08:06:02,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 08:06:02,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:02,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:02,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:03,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:03,092 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:03,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:03,093 INFO L85 PathProgramCache]: Analyzing trace with hash 324993486, now seen corresponding path program 1 times [2023-11-19 08:06:03,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:03,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507675341] [2023-11-19 08:06:03,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:03,094 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 08:06:03,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:03,099 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:03,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:03,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 08:06:03,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:03,967 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 08:06:03,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:03,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:03,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507675341] [2023-11-19 08:06:03,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [507675341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:03,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:03,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:06:03,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825523824] [2023-11-19 08:06:03,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:03,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:06:03,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:03,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:06:03,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:06:03,973 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:07,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 08:06:09,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 08:06:11,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 08:06:11,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:11,491 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2023-11-19 08:06:11,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:06:11,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 08:06:11,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:11,555 INFO L225 Difference]: With dead ends: 48 [2023-11-19 08:06:11,556 INFO L226 Difference]: Without dead ends: 29 [2023-11-19 08:06:11,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:06:11,558 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 73 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:11,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 28 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2023-11-19 08:06:11,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-19 08:06:11,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-19 08:06:11,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 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 08:06:11,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-11-19 08:06:11,568 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2023-11-19 08:06:11,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:11,569 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-11-19 08:06:11,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-11-19 08:06:11,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 08:06:11,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:11,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:11,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:11,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:11,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:11,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1911696712, now seen corresponding path program 1 times [2023-11-19 08:06:11,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:11,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869316539] [2023-11-19 08:06:11,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:11,788 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 08:06:11,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:11,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:11,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 [2023-11-19 08:06:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:12,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:06:12,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:13,299 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 08:06:13,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:13,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:13,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869316539] [2023-11-19 08:06:13,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869316539] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:13,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:13,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:06:13,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136942799] [2023-11-19 08:06:13,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:13,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:06:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:13,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:06:13,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:06:13,303 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 08:06:16,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:06:18,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:06:19,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:06:21,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:06:23,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:06:24,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:06:26,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:06:27,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:27,465 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2023-11-19 08:06:27,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:06:27,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2023-11-19 08:06:27,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:27,476 INFO L225 Difference]: With dead ends: 33 [2023-11-19 08:06:27,477 INFO L226 Difference]: Without dead ends: 29 [2023-11-19 08:06:27,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:06:27,478 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 39 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:27,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 62 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 4 Unknown, 0 Unchecked, 13.9s Time] [2023-11-19 08:06:27,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-19 08:06:27,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-19 08:06:27,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 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 08:06:27,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2023-11-19 08:06:27,488 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2023-11-19 08:06:27,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:27,489 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2023-11-19 08:06:27,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 08:06:27,490 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2023-11-19 08:06:27,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 08:06:27,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:06:27,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:06:27,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:27,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:27,696 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:06:27,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:06:27,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1105522099, now seen corresponding path program 1 times [2023-11-19 08:06:27,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:06:27,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949900140] [2023-11-19 08:06:27,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:06:27,698 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 08:06:27,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:06:27,699 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:27,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 (5)] Waiting until timeout for monitored process [2023-11-19 08:06:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:06:28,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 08:06:28,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:06:29,815 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 08:06:29,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:06:29,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:06:29,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949900140] [2023-11-19 08:06:29,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949900140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:06:29,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:06:29,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:06:29,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291060263] [2023-11-19 08:06:29,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:06:29,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:06:29,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:06:29,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:06:29,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:06:29,817 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 08:06:29,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:06:29,848 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2023-11-19 08:06:29,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:06:29,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2023-11-19 08:06:29,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:06:29,850 INFO L225 Difference]: With dead ends: 29 [2023-11-19 08:06:29,850 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 08:06:29,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:06:29,852 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:06:29,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:06:29,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 08:06:29,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 08:06:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:06:29,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 08:06:29,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2023-11-19 08:06:29,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:06:29,854 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:06:29,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 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 08:06:29,854 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 08:06:29,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 08:06:29,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:06:29,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:06:30,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 08:06:30,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 08:06:30,176 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 75) no Hoare annotation was computed. [2023-11-19 08:06:30,176 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 113 129) no Hoare annotation was computed. [2023-11-19 08:06:30,176 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 70) no Hoare annotation was computed. [2023-11-19 08:06:30,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 08:06:30,176 INFO L899 garLoopResultBuilder]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2023-11-19 08:06:30,176 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 54) no Hoare annotation was computed. [2023-11-19 08:06:30,176 INFO L899 garLoopResultBuilder]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2023-11-19 08:06:30,177 INFO L895 garLoopResultBuilder]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2023-11-19 08:06:30,177 INFO L899 garLoopResultBuilder]: For program point __ieee754_expf_returnLabel#1(lines 38 111) no Hoare annotation was computed. [2023-11-19 08:06:30,177 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 08:06:30,177 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 108) no Hoare annotation was computed. [2023-11-19 08:06:30,177 INFO L895 garLoopResultBuilder]: At program point L104-1(lines 104 108) the Hoare annotation is: false [2023-11-19 08:06:30,178 INFO L899 garLoopResultBuilder]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2023-11-19 08:06:30,178 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 56) no Hoare annotation was computed. [2023-11-19 08:06:30,178 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 83) no Hoare annotation was computed. [2023-11-19 08:06:30,178 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2023-11-19 08:06:30,179 INFO L899 garLoopResultBuilder]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2023-11-19 08:06:30,179 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2023-11-19 08:06:30,179 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 08:06:30,179 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 126) no Hoare annotation was computed. [2023-11-19 08:06:30,179 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 58) no Hoare annotation was computed. [2023-11-19 08:06:30,180 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2023-11-19 08:06:30,180 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2023-11-19 08:06:30,180 INFO L895 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2023-11-19 08:06:30,180 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 08:06:30,180 INFO L899 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2023-11-19 08:06:30,180 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 95) no Hoare annotation was computed. [2023-11-19 08:06:30,181 INFO L895 garLoopResultBuilder]: At program point L91-1(lines 91 95) the Hoare annotation is: false [2023-11-19 08:06:30,181 INFO L899 garLoopResultBuilder]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2023-11-19 08:06:30,181 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 110) no Hoare annotation was computed. [2023-11-19 08:06:30,181 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2023-11-19 08:06:30,181 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2023-11-19 08:06:30,182 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= ~one_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ~huge_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= |ULTIMATE.start___ieee754_expf_~x#1| (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-19 08:06:30,182 INFO L899 garLoopResultBuilder]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2023-11-19 08:06:30,186 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 08:06:30,188 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:06:30,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-19 08:06:30,200 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 08:06:30,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:06:30 BoogieIcfgContainer [2023-11-19 08:06:30,201 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:06:30,202 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:06:30,202 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:06:30,202 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:06:30,203 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:02" (3/4) ... [2023-11-19 08:06:30,205 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:06:30,214 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-19 08:06:30,215 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 08:06:30,215 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:06:30,216 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:06:30,324 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:06:30,325 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:06:30,325 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:06:30,326 INFO L158 Benchmark]: Toolchain (without parser) took 38954.70ms. Allocated memory is still 107.0MB. Free memory was 82.5MB in the beginning and 68.0MB in the end (delta: 14.5MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,326 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:06:30,326 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.88ms. Allocated memory is still 107.0MB. Free memory was 82.2MB in the beginning and 69.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.26ms. Allocated memory is still 107.0MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,327 INFO L158 Benchmark]: Boogie Preprocessor took 78.64ms. Allocated memory is still 107.0MB. Free memory was 67.0MB in the beginning and 64.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,328 INFO L158 Benchmark]: RCFGBuilder took 10118.30ms. Allocated memory is still 107.0MB. Free memory was 64.7MB in the beginning and 77.8MB in the end (delta: -13.0MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,328 INFO L158 Benchmark]: TraceAbstraction took 28128.74ms. Allocated memory is still 107.0MB. Free memory was 76.8MB in the beginning and 73.6MB in the end (delta: 3.2MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,328 INFO L158 Benchmark]: Witness Printer took 123.18ms. Allocated memory is still 107.0MB. Free memory was 73.6MB in the beginning and 68.0MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 08:06:30,331 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.88ms. Allocated memory is still 107.0MB. Free memory was 82.2MB in the beginning and 69.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.26ms. Allocated memory is still 107.0MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.64ms. Allocated memory is still 107.0MB. Free memory was 67.0MB in the beginning and 64.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 10118.30ms. Allocated memory is still 107.0MB. Free memory was 64.7MB in the beginning and 77.8MB in the end (delta: -13.0MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * TraceAbstraction took 28128.74ms. Allocated memory is still 107.0MB. Free memory was 76.8MB in the beginning and 73.6MB in the end (delta: 3.2MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Witness Printer took 123.18ms. Allocated memory is still 107.0MB. Free memory was 73.6MB in the beginning and 68.0MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 124]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 21.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 20.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 93 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 26 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 1 QuantifiedInterpolants, 487 SizeOfPredicates, 19 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-19 08:06:30,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0019dfdc-812a-483e-9eca-f9e05126d4fc/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 Writing output log to file Ultimate.log Result: TRUE