./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0281.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0281.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91 --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 232f7a655f6f2994683ec37dc98df7be72a1a46c6fd6dbf6a1ff9fd35a64400c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:19:30,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:19:30,287 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:19:30,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:19:30,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:19:30,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:19:30,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:19:30,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:19:30,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:19:30,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:19:30,359 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:19:30,359 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:19:30,359 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:19:30,360 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:19:30,360 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:19:30,361 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:19:30,361 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:19:30,361 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:19:30,362 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:19:30,362 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:19:30,363 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:19:30,363 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:19:30,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:19:30,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:19:30,365 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:19:30,366 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:19:30,366 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:19:30,367 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:19:30,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:19:30,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:19:30,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:19:30,369 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:19:30,369 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:19:30,370 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:19:30,370 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:19:30,370 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:19:30,370 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:19:30,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:30,371 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:19:30,371 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:19:30,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:19:30,372 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:19:30,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:19:30,372 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:19:30,373 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:19:30,373 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:19:30,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:19:30,374 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_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232f7a655f6f2994683ec37dc98df7be72a1a46c6fd6dbf6a1ff9fd35a64400c [2023-11-24 23:19:30,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:19:30,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:19:30,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:19:30,724 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:19:30,725 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:19:30,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/float-newlib/float_req_bl_0281.c [2023-11-24 23:19:33,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:19:34,287 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:19:34,294 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/sv-benchmarks/c/float-newlib/float_req_bl_0281.c [2023-11-24 23:19:34,311 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/data/c2911785d/dee61ee132f7475fb8ae70c42b53c02c/FLAG58ca65e7c [2023-11-24 23:19:34,328 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/data/c2911785d/dee61ee132f7475fb8ae70c42b53c02c [2023-11-24 23:19:34,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:19:34,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:19:34,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:34,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:19:34,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:19:34,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26aeaf64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34, skipping insertion in model container [2023-11-24 23:19:34,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,400 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:19:34,701 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_a469903f-cfe7-42b6-a2f1-bdf092b805af/sv-benchmarks/c/float-newlib/float_req_bl_0281.c[4632,4645] [2023-11-24 23:19:34,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:34,718 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:19:34,767 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_a469903f-cfe7-42b6-a2f1-bdf092b805af/sv-benchmarks/c/float-newlib/float_req_bl_0281.c[4632,4645] [2023-11-24 23:19:34,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:34,786 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:19:34,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34 WrapperNode [2023-11-24 23:19:34,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:34,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:34,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:19:34,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:19:34,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,844 INFO L138 Inliner]: procedures = 19, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 272 [2023-11-24 23:19:34,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:34,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:19:34,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:19:34,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:19:34,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,891 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:19:34,892 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:19:34,892 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:19:34,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:19:34,893 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (1/1) ... [2023-11-24 23:19:34,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:34,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:19:34,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:19:34,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:19:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:19:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:19:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:19:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 23:19:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:19:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 23:19:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:19:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:19:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:19:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:19:35,097 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:19:35,100 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:19:35,460 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:19:35,667 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:19:35,667 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-24 23:19:35,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:35 BoogieIcfgContainer [2023-11-24 23:19:35,669 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:19:35,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:19:35,702 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:19:35,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:19:35,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:19:34" (1/3) ... [2023-11-24 23:19:35,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c36ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:35, skipping insertion in model container [2023-11-24 23:19:35,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:34" (2/3) ... [2023-11-24 23:19:35,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c36ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:35, skipping insertion in model container [2023-11-24 23:19:35,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:35" (3/3) ... [2023-11-24 23:19:35,711 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0281.c [2023-11-24 23:19:35,729 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:19:35,729 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:19:35,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:19:35,788 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;@73ecffb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:19:35,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:19:35,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 45 states have internal predecessors, (74), 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) [2023-11-24 23:19:35,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:19:35,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:35,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:35,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:35,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:35,807 INFO L85 PathProgramCache]: Analyzing trace with hash 969791765, now seen corresponding path program 1 times [2023-11-24 23:19:35,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:35,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216669911] [2023-11-24 23:19:35,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:35,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:35,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:19:35,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:35,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216669911] [2023-11-24 23:19:35,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216669911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:35,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:35,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:19:35,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716618736] [2023-11-24 23:19:35,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:35,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:19:35,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:36,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:19:36,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:19:36,014 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.6818181818181819) internal successors, (74), 45 states have internal predecessors, (74), 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) [2023-11-24 23:19:36,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:36,085 INFO L93 Difference]: Finished difference Result 90 states and 145 transitions. [2023-11-24 23:19:36,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:19:36,090 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 [2023-11-24 23:19:36,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:36,100 INFO L225 Difference]: With dead ends: 90 [2023-11-24 23:19:36,101 INFO L226 Difference]: Without dead ends: 43 [2023-11-24 23:19:36,104 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 [2023-11-24 23:19:36,111 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:36,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:19:36,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-24 23:19:36,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-24 23:19:36,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 42 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) [2023-11-24 23:19:36,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2023-11-24 23:19:36,165 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 8 [2023-11-24 23:19:36,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:36,166 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2023-11-24 23:19:36,166 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) [2023-11-24 23:19:36,166 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2023-11-24 23:19:36,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:19:36,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:36,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:36,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:19:36,168 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:36,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:36,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2071836355, now seen corresponding path program 1 times [2023-11-24 23:19:36,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:36,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446814521] [2023-11-24 23:19:36,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:36,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:19:36,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:19:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:19:36,269 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:19:36,270 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:19:36,272 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:19:36,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:19:36,278 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-24 23:19:36,282 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:19:36,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:19:36 BoogieIcfgContainer [2023-11-24 23:19:36,309 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:19:36,310 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:19:36,310 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:19:36,310 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:19:36,311 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:35" (3/4) ... [2023-11-24 23:19:36,313 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:19:36,315 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:19:36,316 INFO L158 Benchmark]: Toolchain (without parser) took 1976.01ms. Allocated memory is still 151.0MB. Free memory was 116.7MB in the beginning and 90.6MB in the end (delta: 26.1MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2023-11-24 23:19:36,316 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:19:36,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.09ms. Allocated memory is still 151.0MB. Free memory was 116.3MB in the beginning and 102.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:19:36,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.60ms. Allocated memory is still 151.0MB. Free memory was 102.8MB in the beginning and 100.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:19:36,318 INFO L158 Benchmark]: Boogie Preprocessor took 45.39ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 98.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:19:36,319 INFO L158 Benchmark]: RCFGBuilder took 777.49ms. Allocated memory is still 151.0MB. Free memory was 98.3MB in the beginning and 69.3MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-24 23:19:36,320 INFO L158 Benchmark]: TraceAbstraction took 607.13ms. Allocated memory is still 151.0MB. Free memory was 120.5MB in the beginning and 91.4MB in the end (delta: 29.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-24 23:19:36,320 INFO L158 Benchmark]: Witness Printer took 4.90ms. Allocated memory is still 151.0MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:19:36,323 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.09ms. Allocated memory is still 151.0MB. Free memory was 116.3MB in the beginning and 102.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.60ms. Allocated memory is still 151.0MB. Free memory was 102.8MB in the beginning and 100.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.39ms. Allocated memory is still 151.0MB. Free memory was 100.4MB in the beginning and 98.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 777.49ms. Allocated memory is still 151.0MB. Free memory was 98.3MB in the beginning and 69.3MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 607.13ms. Allocated memory is still 151.0MB. Free memory was 120.5MB in the beginning and 91.4MB in the end (delta: 29.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 4.90ms. Allocated memory is still 151.0MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 194]: 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 15, overapproximation of someUnaryDOUBLEoperation at line 104, overapproximation of someUnaryFLOAToperation at line 102, overapproximation of someBinaryArithmeticFLOAToperation at line 121. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L100-L108] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L186] float x = __VERIFIER_nondet_float(); [L188] COND TRUE x < -1.0f || x > 1.0f [L190] CALL, EXPR __ieee754_asinf(x) [L111] float t, w, p, q, c, r, s; [L112] __int32_t hx, ix; VAL [\old(x)=1000000000000000000000000000008, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000008] [L114] ieee_float_shape_type gf_u; [L115] EXPR gf_u.value = (x) [L116] EXPR gf_u.word [L116] EXPR (hx) = gf_u.word [L113-L117] { ieee_float_shape_type gf_u; gf_u.value = (x); (hx) = gf_u.word; } VAL [\old(x)=1000000000000000000000000000008, huge_asin=1000000000000000000000000000000, hx=1065353216, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000008] [L118] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000008, huge_asin=1000000000000000000000000000000, hx=1065353216, ix=1065353216, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000008] [L119] COND TRUE ix == 0x3f800000 [L121] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=1000000000000000000000000000008, huge_asin=1000000000000000000000000000000, hx=1065353216, ix=1065353216, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000008] [L190] RET, EXPR __ieee754_asinf(x) [L190] float res = __ieee754_asinf(x); [L193] CALL, EXPR isnan_float(res) [L15] return x != x; [L193] RET, EXPR isnan_float(res) [L193] COND TRUE !isnan_float(res) [L194] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000009, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000008] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 48 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 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 [2023-11-24 23:19:36,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0281.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91 --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 232f7a655f6f2994683ec37dc98df7be72a1a46c6fd6dbf6a1ff9fd35a64400c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:19:38,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:19:39,141 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:19:39,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:19:39,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:19:39,196 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:19:39,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:19:39,197 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:19:39,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:19:39,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:19:39,204 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:19:39,205 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:19:39,205 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:19:39,207 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:19:39,208 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:19:39,208 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:19:39,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:19:39,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:19:39,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:19:39,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:19:39,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:19:39,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:19:39,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:19:39,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:19:39,214 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:19:39,214 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:19:39,215 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:19:39,215 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:19:39,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:19:39,216 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:19:39,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:19:39,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:19:39,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:19:39,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:19:39,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:39,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:19:39,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:19:39,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:19:39,220 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:19:39,221 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:19:39,221 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:19:39,222 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:19:39,222 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:19:39,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:19:39,223 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_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232f7a655f6f2994683ec37dc98df7be72a1a46c6fd6dbf6a1ff9fd35a64400c [2023-11-24 23:19:39,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:19:39,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:19:39,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:19:39,728 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:19:39,728 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:19:39,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/float-newlib/float_req_bl_0281.c [2023-11-24 23:19:43,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:19:43,323 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:19:43,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/sv-benchmarks/c/float-newlib/float_req_bl_0281.c [2023-11-24 23:19:43,333 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/data/8f3276af0/408bdb4bfa474f67a63a02e0111a5415/FLAGa29b54120 [2023-11-24 23:19:43,345 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/data/8f3276af0/408bdb4bfa474f67a63a02e0111a5415 [2023-11-24 23:19:43,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:19:43,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:19:43,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:43,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:19:43,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:19:43,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:43,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38aac230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43, skipping insertion in model container [2023-11-24 23:19:43,358 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:43,390 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:19:43,669 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_a469903f-cfe7-42b6-a2f1-bdf092b805af/sv-benchmarks/c/float-newlib/float_req_bl_0281.c[4632,4645] [2023-11-24 23:19:43,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:43,716 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:19:43,794 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_a469903f-cfe7-42b6-a2f1-bdf092b805af/sv-benchmarks/c/float-newlib/float_req_bl_0281.c[4632,4645] [2023-11-24 23:19:43,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:43,837 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:19:43,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43 WrapperNode [2023-11-24 23:19:43,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:43,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:43,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:19:43,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:19:43,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:43,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:43,937 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 251 [2023-11-24 23:19:43,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:43,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:19:43,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:19:43,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:19:43,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:43,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:43,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:43,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:44,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:44,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:44,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:44,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:44,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:19:44,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:19:44,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:19:44,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:19:44,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (1/1) ... [2023-11-24 23:19:44,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:44,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:19:44,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:19:44,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:19:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:19:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:19:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:19:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-24 23:19:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 23:19:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:19:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:19:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 23:19:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 23:19:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:19:44,296 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:19:44,298 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:19:57,324 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:19:57,355 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:19:57,357 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-24 23:19:57,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:57 BoogieIcfgContainer [2023-11-24 23:19:57,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:19:57,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:19:57,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:19:57,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:19:57,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:19:43" (1/3) ... [2023-11-24 23:19:57,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3110309a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:57, skipping insertion in model container [2023-11-24 23:19:57,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:43" (2/3) ... [2023-11-24 23:19:57,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3110309a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:57, skipping insertion in model container [2023-11-24 23:19:57,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:57" (3/3) ... [2023-11-24 23:19:57,370 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0281.c [2023-11-24 23:19:57,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:19:57,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:19:57,457 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:19:57,465 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;@24783e9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:19:57,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:19:57,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 51 states have (on average 1.7254901960784315) internal successors, (88), 52 states have internal predecessors, (88), 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) [2023-11-24 23:19:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:19:57,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:57,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:57,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:57,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:57,494 INFO L85 PathProgramCache]: Analyzing trace with hash -460163115, now seen corresponding path program 1 times [2023-11-24 23:19:57,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:19:57,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485905677] [2023-11-24 23:19:57,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:57,513 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 [2023-11-24 23:19:57,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:19:57,516 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:19:57,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:19:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:58,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:19:58,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:19:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:19:58,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:19:58,206 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:19:58,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485905677] [2023-11-24 23:19:58,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485905677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:58,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:58,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:19:58,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325706158] [2023-11-24 23:19:58,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:58,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:19:58,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:19:58,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:19:58,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:19:58,247 INFO L87 Difference]: Start difference. First operand has 53 states, 51 states have (on average 1.7254901960784315) internal successors, (88), 52 states have internal predecessors, (88), 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) [2023-11-24 23:20:00,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:20:01,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:01,062 INFO L93 Difference]: Finished difference Result 104 states and 173 transitions. [2023-11-24 23:20:01,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:20:01,064 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 [2023-11-24 23:20:01,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:01,072 INFO L225 Difference]: With dead ends: 104 [2023-11-24 23:20:01,072 INFO L226 Difference]: Without dead ends: 50 [2023-11-24 23:20:01,075 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 [2023-11-24 23:20:01,079 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:01,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2023-11-24 23:20:01,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-24 23:20:01,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-24 23:20:01,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 49 states have internal predecessors, (67), 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) [2023-11-24 23:20:01,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2023-11-24 23:20:01,112 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 8 [2023-11-24 23:20:01,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:01,113 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2023-11-24 23:20:01,113 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) [2023-11-24 23:20:01,113 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2023-11-24 23:20:01,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:20:01,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:01,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:01,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:01,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:01,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:01,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:01,332 INFO L85 PathProgramCache]: Analyzing trace with hash 844887791, now seen corresponding path program 1 times [2023-11-24 23:20:01,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:01,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110393844] [2023-11-24 23:20:01,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:01,333 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 [2023-11-24 23:20:01,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:01,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:20:01,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:01,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 23:20:01,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:02,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 23:20:02,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2023-11-24 23:20:02,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:20:02,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:02,693 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:02,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110393844] [2023-11-24 23:20:02,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110393844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:02,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:02,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:20:02,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917570644] [2023-11-24 23:20:02,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:02,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:20:02,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:02,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:20:02,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:20:02,701 INFO L87 Difference]: Start difference. First operand 50 states and 67 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) [2023-11-24 23:20:03,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:03,629 INFO L93 Difference]: Finished difference Result 54 states and 70 transitions. [2023-11-24 23:20:03,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:20:03,631 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 [2023-11-24 23:20:03,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:03,631 INFO L225 Difference]: With dead ends: 54 [2023-11-24 23:20:03,631 INFO L226 Difference]: Without dead ends: 11 [2023-11-24 23:20:03,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:20:03,634 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:03,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 11 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 23:20:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-24 23:20:03,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-24 23:20:03,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 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) [2023-11-24 23:20:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2023-11-24 23:20:03,638 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 9 [2023-11-24 23:20:03,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:03,639 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2023-11-24 23:20:03,639 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) [2023-11-24 23:20:03,639 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2023-11-24 23:20:03,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 23:20:03,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:20:03,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:20:03,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:03,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:03,851 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:20:03,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:20:03,851 INFO L85 PathProgramCache]: Analyzing trace with hash 417263703, now seen corresponding path program 1 times [2023-11-24 23:20:03,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:20:03,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142820211] [2023-11-24 23:20:03,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:20:03,852 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 [2023-11-24 23:20:03,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:20:03,854 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:20:03,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:20:04,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:20:04,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:20:09,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:20:09,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:20:09,025 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:20:09,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142820211] [2023-11-24 23:20:09,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [142820211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:20:09,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:20:09,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:20:09,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072715932] [2023-11-24 23:20:09,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:20:09,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:20:09,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:20:09,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:20:09,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:20:09,028 INFO L87 Difference]: Start difference. First operand 11 states and 10 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) [2023-11-24 23:20:14,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:20:14,118 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2023-11-24 23:20:14,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:20:14,119 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 [2023-11-24 23:20:14,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:20:14,119 INFO L225 Difference]: With dead ends: 11 [2023-11-24 23:20:14,119 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 23:20:14,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 23:20:14,121 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:20:14,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 12 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 23:20:14,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 23:20:14,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 23:20:14,125 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) [2023-11-24 23:20:14,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 23:20:14,126 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-11-24 23:20:14,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:20:14,126 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 23:20:14,126 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) [2023-11-24 23:20:14,127 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 23:20:14,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:20:14,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:20:14,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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)] Ended with exit code 0 [2023-11-24 23:20:14,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:20:14,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-24 23:20:14,540 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2023-11-24 23:20:14,541 INFO L899 garLoopResultBuilder]: For program point L119(lines 119 139) no Hoare annotation was computed. [2023-11-24 23:20:14,541 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 73) no Hoare annotation was computed. [2023-11-24 23:20:14,541 INFO L899 garLoopResultBuilder]: For program point __ieee754_sqrtf_returnLabel#1(lines 19 84) no Hoare annotation was computed. [2023-11-24 23:20:14,541 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2023-11-24 23:20:14,542 INFO L895 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2023-11-24 23:20:14,542 INFO L899 garLoopResultBuilder]: For program point __ieee754_asinf_returnLabel#1(lines 110 176) no Hoare annotation was computed. [2023-11-24 23:20:14,542 INFO L895 garLoopResultBuilder]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2023-11-24 23:20:14,542 INFO L899 garLoopResultBuilder]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2023-11-24 23:20:14,542 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 197) no Hoare annotation was computed. [2023-11-24 23:20:14,542 INFO L899 garLoopResultBuilder]: For program point L122(lines 122 139) no Hoare annotation was computed. [2023-11-24 23:20:14,542 INFO L899 garLoopResultBuilder]: For program point L188-2(lines 188 197) no Hoare annotation was computed. [2023-11-24 23:20:14,543 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 44) no Hoare annotation was computed. [2023-11-24 23:20:14,543 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2023-11-24 23:20:14,543 INFO L899 garLoopResultBuilder]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2023-11-24 23:20:14,543 INFO L895 garLoopResultBuilder]: At program point L156-2(lines 156 160) the Hoare annotation is: false [2023-11-24 23:20:14,543 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2023-11-24 23:20:14,543 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2023-11-24 23:20:14,544 INFO L899 garLoopResultBuilder]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2023-11-24 23:20:14,544 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 28) the Hoare annotation is: false [2023-11-24 23:20:14,544 INFO L899 garLoopResultBuilder]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2023-11-24 23:20:14,544 INFO L895 garLoopResultBuilder]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2023-11-24 23:20:14,544 INFO L899 garLoopResultBuilder]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2023-11-24 23:20:14,545 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-24 23:20:14,545 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 139) no Hoare annotation was computed. [2023-11-24 23:20:14,545 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 124 139) no Hoare annotation was computed. [2023-11-24 23:20:14,545 INFO L899 garLoopResultBuilder]: For program point L125(lines 125 138) no Hoare annotation was computed. [2023-11-24 23:20:14,545 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 96) no Hoare annotation was computed. [2023-11-24 23:20:14,546 INFO L895 garLoopResultBuilder]: At program point L92-1(lines 92 96) the Hoare annotation is: false [2023-11-24 23:20:14,546 INFO L899 garLoopResultBuilder]: For program point L92-2(lines 92 96) no Hoare annotation was computed. [2023-11-24 23:20:14,546 INFO L899 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2023-11-24 23:20:14,546 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 178 200) no Hoare annotation was computed. [2023-11-24 23:20:14,547 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 196) no Hoare annotation was computed. [2023-11-24 23:20:14,547 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2023-11-24 23:20:14,547 INFO L895 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2023-11-24 23:20:14,547 INFO L899 garLoopResultBuilder]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2023-11-24 23:20:14,547 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2023-11-24 23:20:14,548 INFO L899 garLoopResultBuilder]: For program point L161(lines 161 165) no Hoare annotation was computed. [2023-11-24 23:20:14,548 INFO L895 garLoopResultBuilder]: At program point L161-1(lines 161 165) the Hoare annotation is: false [2023-11-24 23:20:14,548 INFO L899 garLoopResultBuilder]: For program point L161-2(lines 161 165) no Hoare annotation was computed. [2023-11-24 23:20:14,548 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-24 23:20:14,548 INFO L899 garLoopResultBuilder]: For program point L113-1(lines 113 117) no Hoare annotation was computed. [2023-11-24 23:20:14,549 INFO L895 garLoopResultBuilder]: At program point L113-2(lines 113 117) the Hoare annotation is: (and (or (exists ((currentRoundingMode RoundingMode)) (fp.gt |ULTIMATE.start___ieee754_asinf_~x#1| ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start___ieee754_asinf_~x#1| (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0))))) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-24 23:20:14,549 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2023-11-24 23:20:14,549 INFO L899 garLoopResultBuilder]: For program point L113-3(lines 113 117) no Hoare annotation was computed. [2023-11-24 23:20:14,549 INFO L899 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2023-11-24 23:20:14,550 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2023-11-24 23:20:14,550 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 194) no Hoare annotation was computed. [2023-11-24 23:20:14,550 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2023-11-24 23:20:14,550 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2023-11-24 23:20:14,550 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 171) no Hoare annotation was computed. [2023-11-24 23:20:14,551 INFO L899 garLoopResultBuilder]: For program point L150-2(lines 110 176) no Hoare annotation was computed. [2023-11-24 23:20:14,551 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 74) no Hoare annotation was computed. [2023-11-24 23:20:14,554 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-24 23:20:14,557 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:20:14,570 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.gt~32(~x, ~to_fp~32(currentRoundingMode, 1.0))) could not be translated [2023-11-24 23:20:14,571 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~32(~x, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)))) could not be translated [2023-11-24 23:20:14,571 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-24 23:20:14,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:20:14 BoogieIcfgContainer [2023-11-24 23:20:14,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:20:14,577 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:20:14,577 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:20:14,578 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:20:14,579 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:57" (3/4) ... [2023-11-24 23:20:14,581 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:20:14,602 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-24 23:20:14,602 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-24 23:20:14,603 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:20:14,603 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:20:14,717 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-24 23:20:14,718 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-24 23:20:14,718 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:20:14,719 INFO L158 Benchmark]: Toolchain (without parser) took 31369.52ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 46.1MB in the beginning and 50.8MB in the end (delta: -4.8MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2023-11-24 23:20:14,720 INFO L158 Benchmark]: CDTParser took 1.37ms. Allocated memory is still 69.2MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:20:14,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.72ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 45.7MB in the beginning and 73.2MB in the end (delta: -27.5MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-11-24 23:20:14,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.29ms. Allocated memory is still 94.4MB. Free memory was 73.2MB in the beginning and 70.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:20:14,721 INFO L158 Benchmark]: Boogie Preprocessor took 101.53ms. Allocated memory is still 94.4MB. Free memory was 70.6MB in the beginning and 67.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:20:14,722 INFO L158 Benchmark]: RCFGBuilder took 13316.99ms. Allocated memory is still 94.4MB. Free memory was 67.9MB in the beginning and 45.4MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-24 23:20:14,722 INFO L158 Benchmark]: TraceAbstraction took 17211.96ms. Allocated memory is still 94.4MB. Free memory was 44.8MB in the beginning and 55.7MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:20:14,722 INFO L158 Benchmark]: Witness Printer took 141.30ms. Allocated memory is still 94.4MB. Free memory was 55.7MB in the beginning and 50.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:20:14,724 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37ms. Allocated memory is still 69.2MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.72ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 45.7MB in the beginning and 73.2MB in the end (delta: -27.5MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.29ms. Allocated memory is still 94.4MB. Free memory was 73.2MB in the beginning and 70.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.53ms. Allocated memory is still 94.4MB. Free memory was 70.6MB in the beginning and 67.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 13316.99ms. Allocated memory is still 94.4MB. Free memory was 67.9MB in the beginning and 45.4MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17211.96ms. Allocated memory is still 94.4MB. Free memory was 44.8MB in the beginning and 55.7MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 141.30ms. Allocated memory is still 94.4MB. Free memory was 55.7MB in the beginning and 50.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.gt~32(~x, ~to_fp~32(currentRoundingMode, 1.0))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~32(~x, ~fp.neg~32(~to_fp~32(currentRoundingMode, 1.0)))) could not be translated - 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: 194]: 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, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 74 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 10 NumberOfFragments, 26 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 5 QuantifiedInterpolants, 152 SizeOfPredicates, 12 NumberOfNonLiveVariables, 151 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 24]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-24 23:20:14,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a469903f-cfe7-42b6-a2f1-bdf092b805af/bin/utaipan-verify-SwPr7d2a91/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 Writing output log to file Ultimate.log Result: TRUE