./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8967790177fc14e8157cff1ce1fb723d3ab55513216099f6dbb82db8bc4d5837 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:44,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:44,599 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:34:44,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:44,607 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:44,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:44,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:44,636 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:44,637 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:44,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:44,638 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:44,639 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:44,639 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:44,640 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:44,641 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:44,641 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:44,642 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:44,642 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:44,643 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:44,644 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:44,644 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:44,645 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:44,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:44,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:44,647 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:34:44,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:44,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:34:44,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:44,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:44,649 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:44,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:44,650 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:34:44,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:44,651 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:44,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:44,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:44,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:44,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:44,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:44,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:44,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:44,659 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:44,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:44,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:44,660 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:44,660 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:44,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:44,660 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8967790177fc14e8157cff1ce1fb723d3ab55513216099f6dbb82db8bc4d5837 [2023-11-23 20:34:45,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:45,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:45,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:45,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:45,048 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:45,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2023-11-23 20:34:48,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:48,571 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:48,572 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2023-11-23 20:34:48,583 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/data/95cd99222/eb23c036379b458db3e66e185d3e643b/FLAG81f312990 [2023-11-23 20:34:48,602 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/data/95cd99222/eb23c036379b458db3e66e185d3e643b [2023-11-23 20:34:48,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:48,612 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:48,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:48,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:48,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:48,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:48,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6b3b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48, skipping insertion in model container [2023-11-23 20:34:48,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:48,653 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:48,850 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_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c[570,583] [2023-11-23 20:34:48,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:48,904 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:48,918 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_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c[570,583] [2023-11-23 20:34:48,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:48,963 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:48,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48 WrapperNode [2023-11-23 20:34:48,963 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:48,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:48,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:48,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:48,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:48,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:49,019 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2023-11-23 20:34:49,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:49,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:49,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:49,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:49,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:49,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:49,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:49,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:49,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:49,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:49,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:49,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:49,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:49,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:49,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:49,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:49,063 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (1/1) ... [2023-11-23 20:34:49,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:49,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:49,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:49,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:49,211 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:49,214 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:49,346 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:49,408 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:49,408 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:34:49,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:49 BoogieIcfgContainer [2023-11-23 20:34:49,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:49,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:49,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:49,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:49,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:48" (1/3) ... [2023-11-23 20:34:49,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4326c3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:49, skipping insertion in model container [2023-11-23 20:34:49,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:48" (2/3) ... [2023-11-23 20:34:49,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4326c3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:49, skipping insertion in model container [2023-11-23 20:34:49,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:49" (3/3) ... [2023-11-23 20:34:49,421 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_biNewton_pseudoconstant.c [2023-11-23 20:34:49,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:49,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:49,497 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:49,503 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@71c4824e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:49,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:49,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:34:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 20:34:49,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:49,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 20:34:49,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:49,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:49,520 INFO L85 PathProgramCache]: Analyzing trace with hash 88161564, now seen corresponding path program 1 times [2023-11-23 20:34:49,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:49,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459149783] [2023-11-23 20:34:49,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:49,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:34:49,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:34:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:34:49,708 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:34:49,710 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:34:49,712 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:34:49,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:34:49,720 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:34:49,725 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:34:49,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:34:49 BoogieIcfgContainer [2023-11-23 20:34:49,749 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:34:49,750 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:34:49,750 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:34:49,750 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:34:49,751 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:49" (3/4) ... [2023-11-23 20:34:49,754 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:34:49,755 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:34:49,756 INFO L158 Benchmark]: Toolchain (without parser) took 1144.17ms. Allocated memory is still 159.4MB. Free memory was 125.1MB in the beginning and 83.3MB in the end (delta: 41.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-23 20:34:49,757 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 159.4MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:34:49,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.93ms. Allocated memory is still 159.4MB. Free memory was 125.1MB in the beginning and 114.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:34:49,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.54ms. Allocated memory is still 159.4MB. Free memory was 114.0MB in the beginning and 112.3MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:34:49,761 INFO L158 Benchmark]: Boogie Preprocessor took 41.56ms. Allocated memory is still 159.4MB. Free memory was 112.3MB in the beginning and 111.4MB in the end (delta: 928.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:34:49,768 INFO L158 Benchmark]: RCFGBuilder took 348.54ms. Allocated memory is still 159.4MB. Free memory was 111.0MB in the beginning and 98.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:34:49,770 INFO L158 Benchmark]: TraceAbstraction took 336.12ms. Allocated memory is still 159.4MB. Free memory was 97.6MB in the beginning and 83.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:34:49,770 INFO L158 Benchmark]: Witness Printer took 4.92ms. Allocated memory is still 159.4MB. Free memory was 83.3MB in the beginning and 83.3MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:34:49,777 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 159.4MB. Free memory is still 132.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.93ms. Allocated memory is still 159.4MB. Free memory was 125.1MB in the beginning and 114.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.54ms. Allocated memory is still 159.4MB. Free memory was 114.0MB in the beginning and 112.3MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.56ms. Allocated memory is still 159.4MB. Free memory was 112.3MB in the beginning and 111.4MB in the end (delta: 928.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 348.54ms. Allocated memory is still 159.4MB. Free memory was 111.0MB in the beginning and 98.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 336.12ms. Allocated memory is still 159.4MB. Free memory was 97.6MB in the beginning and 83.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.92ms. Allocated memory is still 159.4MB. Free memory was 83.3MB in the beginning and 83.3MB in the end (delta: 2.6kB). 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: 13]: 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 someBinaryArithmeticDOUBLEoperation at line 38, overapproximation of someUnaryDOUBLEoperation at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 53. Possible FailurePath: [L15] double _EPS = 1e-6; [L43] double d, dd, r; [L44] double epsilon = 1e-8; [L46] d = 1. VAL [_EPS=1/1000000, d=1, epsilon=1/100000000] [L46] COND TRUE d <= 20. [L48] dd = __VERIFIER_nondet_double() [L49] CALL assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L11] COND FALSE !(!cond) [L49] RET assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L51] CALL, EXPR SqrtR(dd) [L19] double xn, xnp1, residu, lsup, linf; [L20] int i, cond; [L21] COND TRUE Input <= 1.0 [L21] xn = 1.0 [L22] xnp1 = xn [L23] residu = 2.0*_EPS*(xn+xnp1) [L24] lsup = _EPS * (xn+xnp1) [L25] linf = -lsup [L26] cond = ((residu > lsup) || (residu < linf)) [L27] i = 0 VAL [Input=53, \old(Input)=53, _EPS=1/1000000, cond=0, i=0, xn=1, xn=1] [L28] COND FALSE !(\read(cond)) [L38] return 1.0 / xnp1; [L51] RET, EXPR SqrtR(dd) [L51] r = SqrtR(dd) [L53] CALL __VERIFIER_assert(r >= 0.9 && r <= 5.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, _EPS=1/1000000, cond=0] [L13] reach_error() VAL [\old(cond)=0, _EPS=1/1000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2023-11-23 20:34:49,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8967790177fc14e8157cff1ce1fb723d3ab55513216099f6dbb82db8bc4d5837 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:52,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:52,610 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:34:52,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:52,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:52,665 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:52,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:52,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:52,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:52,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:52,673 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:52,674 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:52,674 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:52,676 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:52,676 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:52,677 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:52,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:52,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:52,679 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:34:52,679 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:34:52,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:52,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:52,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:52,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:52,681 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:34:52,682 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:34:52,682 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:34:52,683 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:34:52,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:52,683 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:52,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:52,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:34:52,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:52,686 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:52,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:52,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:52,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:52,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:52,687 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:34:52,688 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:34:52,688 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:52,689 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:52,689 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:52,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:52,690 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8967790177fc14e8157cff1ce1fb723d3ab55513216099f6dbb82db8bc4d5837 [2023-11-23 20:34:53,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:53,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:53,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:53,152 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:53,152 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:53,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2023-11-23 20:34:56,524 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:56,806 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:56,806 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c [2023-11-23 20:34:56,819 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/data/022bc6053/624c0365b7304c10add7190a47d20b98/FLAG1d8093b4d [2023-11-23 20:34:57,114 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/data/022bc6053/624c0365b7304c10add7190a47d20b98 [2023-11-23 20:34:57,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:57,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:57,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:57,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:57,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:57,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de47f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57, skipping insertion in model container [2023-11-23 20:34:57,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,157 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:57,329 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_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c[570,583] [2023-11-23 20:34:57,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:57,382 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:57,398 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_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/sv-benchmarks/c/float-benchs/sqrt_biNewton_pseudoconstant.c[570,583] [2023-11-23 20:34:57,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:57,446 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:57,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57 WrapperNode [2023-11-23 20:34:57,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:57,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:57,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:57,448 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:57,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,509 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2023-11-23 20:34:57,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:57,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:57,511 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:57,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:57,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,561 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:57,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:57,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:57,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:57,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (1/1) ... [2023-11-23 20:34:57,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:57,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:57,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:57,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:34:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:57,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:57,766 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:57,768 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:07,372 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:07,423 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:07,423 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:35:07,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:07 BoogieIcfgContainer [2023-11-23 20:35:07,424 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:07,428 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:07,428 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:07,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:07,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:57" (1/3) ... [2023-11-23 20:35:07,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79bb6f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:07, skipping insertion in model container [2023-11-23 20:35:07,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:57" (2/3) ... [2023-11-23 20:35:07,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79bb6f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:07, skipping insertion in model container [2023-11-23 20:35:07,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:07" (3/3) ... [2023-11-23 20:35:07,437 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_biNewton_pseudoconstant.c [2023-11-23 20:35:07,459 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:07,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:07,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:07,537 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@d43ff1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:07,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:07,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 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) [2023-11-23 20:35:07,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:35:07,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:07,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:07,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:07,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:07,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1989645552, now seen corresponding path program 1 times [2023-11-23 20:35:07,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:07,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520428016] [2023-11-23 20:35:07,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:07,571 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 [2023-11-23 20:35:07,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:07,573 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:35:07,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:35:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:09,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:35:09,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:09,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:09,422 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:35:09,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520428016] [2023-11-23 20:35:09,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520428016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:09,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:09,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:35:09,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644159176] [2023-11-23 20:35:09,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:09,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:35:09,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:35:09,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:35:09,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:35:09,473 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:11,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:11,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:11,995 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2023-11-23 20:35:12,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:35:12,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-23 20:35:12,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:12,011 INFO L225 Difference]: With dead ends: 27 [2023-11-23 20:35:12,012 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 20:35:12,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:35:12,018 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:12,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2023-11-23 20:35:12,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 20:35:12,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-23 20:35:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2023-11-23 20:35:12,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2023-11-23 20:35:12,042 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 10 [2023-11-23 20:35:12,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:12,043 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2023-11-23 20:35:12,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:12,043 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-23 20:35:12,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:35:12,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:12,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:12,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:35:12,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:35:12,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:12,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:12,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1180179762, now seen corresponding path program 1 times [2023-11-23 20:35:12,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:12,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363071027] [2023-11-23 20:35:12,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:12,255 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 [2023-11-23 20:35:12,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:12,257 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:35:12,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:35:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:13,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:35:13,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:35:15,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:15,061 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:35:15,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363071027] [2023-11-23 20:35:15,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363071027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:15,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:15,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:35:15,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862795503] [2023-11-23 20:35:15,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:15,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:35:15,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:35:15,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:35:15,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:35:15,067 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:18,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:20,392 WARN L539 Checker$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 [] [2023-11-23 20:35:22,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:24,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:27,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:29,349 WARN L539 Checker$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 [] [2023-11-23 20:35:31,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:35,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:37,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:39,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:41,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:43,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:45,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:47,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:49,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:51,847 WARN L539 Checker$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 [] [2023-11-23 20:35:52,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:52,148 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2023-11-23 20:35:52,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:35:52,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-23 20:35:52,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:52,160 INFO L225 Difference]: With dead ends: 25 [2023-11-23 20:35:52,160 INFO L226 Difference]: Without dead ends: 14 [2023-11-23 20:35:52,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:35:52,163 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2023-11-23 20:35:52,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 16 Unknown, 0 Unchecked, 36.7s Time] [2023-11-23 20:35:52,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-23 20:35:52,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-23 20:35:52,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:52,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-11-23 20:35:52,170 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2023-11-23 20:35:52,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:52,170 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-23 20:35:52,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:35:52,171 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-23 20:35:52,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:35:52,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:52,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:35:52,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:35:52,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:35:52,387 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:52,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:52,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1237438064, now seen corresponding path program 1 times [2023-11-23 20:35:52,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:52,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980856180] [2023-11-23 20:35:52,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:52,389 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 [2023-11-23 20:35:52,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:52,391 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:35:52,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07197f6e-cfb4-454a-b93d-e4ce51aae1f8/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:35:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:56,308 WARN L260 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 20:35:56,311 INFO L285 TraceCheckSpWp]: Computing forward predicates...