./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0682a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0682a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX --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 2a0b335900eb7ac8340f6fa1728e72682341270c88357da83af9b58560bc536f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:37,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:37,253 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:48:37,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:37,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:37,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:37,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:37,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:37,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:37,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:37,313 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:37,314 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:37,315 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:37,317 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:48:37,317 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:37,318 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:37,318 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:48:37,319 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:48:37,319 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:37,320 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:48:37,320 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:48:37,321 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:48:37,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:37,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:48:37,323 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:48:37,324 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:48:37,325 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:48:37,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:37,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:48:37,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:37,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:48:37,328 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:48:37,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:48:37,329 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:37,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:37,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:37,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:37,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:37,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:37,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:48:37,331 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:48:37,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:48:37,332 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:48:37,332 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:37,333 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:37,333 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_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a0b335900eb7ac8340f6fa1728e72682341270c88357da83af9b58560bc536f [2023-11-12 00:48:37,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:37,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:37,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:37,702 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:37,704 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:37,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/float-newlib/float_req_bl_0682a.c [2023-11-12 00:48:40,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:41,081 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:41,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/sv-benchmarks/c/float-newlib/float_req_bl_0682a.c [2023-11-12 00:48:41,093 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/data/4841d5e05/3ef01e817a3c499ca16f820b81bc23b1/FLAG33e2cb948 [2023-11-12 00:48:41,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/data/4841d5e05/3ef01e817a3c499ca16f820b81bc23b1 [2023-11-12 00:48:41,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:41,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:41,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:41,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:41,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:41,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@420ebef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41, skipping insertion in model container [2023-11-12 00:48:41,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,174 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:41,434 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_8e691558-1f75-40e6-bac6-a449b02f165a/sv-benchmarks/c/float-newlib/float_req_bl_0682a.c[5568,5581] [2023-11-12 00:48:41,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:41,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:41,530 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_8e691558-1f75-40e6-bac6-a449b02f165a/sv-benchmarks/c/float-newlib/float_req_bl_0682a.c[5568,5581] [2023-11-12 00:48:41,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:41,558 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:41,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41 WrapperNode [2023-11-12 00:48:41,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:41,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:41,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:41,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:41,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,666 INFO L138 Inliner]: procedures = 20, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 257 [2023-11-12 00:48:41,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:41,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:41,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:41,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:41,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:41,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:41,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:41,735 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:41,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (1/1) ... [2023-11-12 00:48:41,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:41,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:41,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:41,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:48:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:48:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-12 00:48:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:48:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-12 00:48:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2023-11-12 00:48:41,853 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2023-11-12 00:48:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:41,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:48:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-12 00:48:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2023-11-12 00:48:41,855 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2023-11-12 00:48:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:48:42,051 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:42,062 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:48:42,695 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:48:42,826 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:48:42,828 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-12 00:48:42,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:42 BoogieIcfgContainer [2023-11-12 00:48:42,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:48:42,835 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:48:42,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:48:42,839 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:48:42,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:41" (1/3) ... [2023-11-12 00:48:42,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe84282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:42, skipping insertion in model container [2023-11-12 00:48:42,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:41" (2/3) ... [2023-11-12 00:48:42,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe84282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:42, skipping insertion in model container [2023-11-12 00:48:42,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:42" (3/3) ... [2023-11-12 00:48:42,844 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0682a.c [2023-11-12 00:48:42,863 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:48:42,864 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:48:42,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:48:42,931 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;@6fcee14a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:48:42,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:48:42,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 64 states have (on average 1.703125) internal successors, (109), 65 states have internal predecessors, (109), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:48:42,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:48:42,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:42,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:42,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:42,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:42,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1884747569, now seen corresponding path program 1 times [2023-11-12 00:48:42,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:42,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473662899] [2023-11-12 00:48:42,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:42,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:43,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:48:43,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:43,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473662899] [2023-11-12 00:48:43,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473662899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:43,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:43,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:48:43,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854250402] [2023-11-12 00:48:43,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:43,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:48:43,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:43,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:48:43,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:48:43,196 INFO L87 Difference]: Start difference. First operand has 72 states, 64 states have (on average 1.703125) internal successors, (109), 65 states have internal predecessors, (109), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-12 00:48:43,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:43,258 INFO L93 Difference]: Finished difference Result 143 states and 237 transitions. [2023-11-12 00:48:43,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:48:43,261 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2023-11-12 00:48:43,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:43,269 INFO L225 Difference]: With dead ends: 143 [2023-11-12 00:48:43,270 INFO L226 Difference]: Without dead ends: 69 [2023-11-12 00:48:43,274 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 [2023-11-12 00:48:43,278 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:43,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:48:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-12 00:48:43,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-12 00:48:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 62 states have internal predecessors, (88), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:48:43,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 96 transitions. [2023-11-12 00:48:43,324 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 96 transitions. Word has length 12 [2023-11-12 00:48:43,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:43,325 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 96 transitions. [2023-11-12 00:48:43,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-12 00:48:43,325 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 96 transitions. [2023-11-12 00:48:43,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:48:43,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:43,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:48:43,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:48:43,327 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:48:43,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:43,328 INFO L85 PathProgramCache]: Analyzing trace with hash -2024607647, now seen corresponding path program 1 times [2023-11-12 00:48:43,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:43,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003849562] [2023-11-12 00:48:43,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:43,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:48:43,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:48:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:48:43,594 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:48:43,594 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:48:43,600 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:48:43,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:48:43,606 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 00:48:43,611 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:48:43,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:48:43 BoogieIcfgContainer [2023-11-12 00:48:43,681 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:48:43,682 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:48:43,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:48:43,682 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:48:43,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:42" (3/4) ... [2023-11-12 00:48:43,687 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:48:43,688 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:48:43,690 INFO L158 Benchmark]: Toolchain (without parser) took 2567.97ms. Allocated memory is still 165.7MB. Free memory was 127.6MB in the beginning and 80.0MB in the end (delta: 47.6MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-12 00:48:43,690 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:48:43,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.98ms. Allocated memory is still 165.7MB. Free memory was 127.1MB in the beginning and 112.9MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:48:43,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.37ms. Allocated memory is still 165.7MB. Free memory was 112.9MB in the beginning and 110.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:48:43,693 INFO L158 Benchmark]: Boogie Preprocessor took 65.93ms. Allocated memory is still 165.7MB. Free memory was 110.4MB in the beginning and 107.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:48:43,694 INFO L158 Benchmark]: RCFGBuilder took 1097.36ms. Allocated memory is still 165.7MB. Free memory was 107.7MB in the beginning and 120.3MB in the end (delta: -12.6MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2023-11-12 00:48:43,695 INFO L158 Benchmark]: TraceAbstraction took 846.30ms. Allocated memory is still 165.7MB. Free memory was 119.8MB in the beginning and 80.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-12 00:48:43,696 INFO L158 Benchmark]: Witness Printer took 7.05ms. Allocated memory is still 165.7MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:48:43,700 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.98ms. Allocated memory is still 165.7MB. Free memory was 127.1MB in the beginning and 112.9MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.37ms. Allocated memory is still 165.7MB. Free memory was 112.9MB in the beginning and 110.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.93ms. Allocated memory is still 165.7MB. Free memory was 110.4MB in the beginning and 107.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1097.36ms. Allocated memory is still 165.7MB. Free memory was 107.7MB in the beginning and 120.3MB in the end (delta: -12.6MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. * TraceAbstraction took 846.30ms. Allocated memory is still 165.7MB. Free memory was 119.8MB in the beginning and 80.0MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 7.05ms. Allocated memory is still 165.7MB. Free memory is still 80.0MB. 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: 244]: 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 243, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L236] float x = -1.0f / 0.0f; [L237] float y = __VERIFIER_nondet_float(); [L239] CALL, EXPR isfinite_float(y) [L219] __int32_t ix; VAL [\old(x)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, zero_atan2=0] [L221] ieee_float_shape_type gf_u; [L222] EXPR gf_u.value = (x) [L223] EXPR gf_u.word [L223] EXPR (ix) = gf_u.word [L220-L224] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, ix=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, zero_atan2=0] [L225] ix &= 0x7fffffff [L226] return (((ix) < 0x7f800000L)); [L239] RET, EXPR isfinite_float(y) [L239] COND TRUE isfinite_float(y) && y < 0.0f [L240] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] EXPR gf_u.value = (x) [L127] EXPR gf_u.word [L127] EXPR (hx) = gf_u.word [L124-L128] { ieee_float_shape_type gf_u; gf_u.value = (x); (hx) = gf_u.word; } VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-8388606, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L129] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-8388606, ix=2139095042, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] EXPR gf_u.value = (y) [L133] EXPR gf_u.word [L133] EXPR (hy) = gf_u.word [L130-L134] { ieee_float_shape_type gf_u; gf_u.value = (y); (hy) = gf_u.word; } VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-8388606, hy=-8388607, ix=2139095042, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L135] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-8388606, hy=-8388607, ix=2139095042, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=1000000000000000000000000000003, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-8388606, hy=-8388607, ix=2139095042, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L240] RET, EXPR __ieee754_atan2f(y, x) [L240] float res = __ieee754_atan2f(y, x); [L243] COND TRUE res != -pi VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] [L244] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000003, y=1000000000000000000000000000001, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 87 mSDtfsCounter, 13 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=72occurred 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, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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 [2023-11-12 00:48:43,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0682a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX --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 2a0b335900eb7ac8340f6fa1728e72682341270c88357da83af9b58560bc536f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:46,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:46,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:48:46,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:46,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:46,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:46,890 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:46,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:46,892 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:46,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:46,899 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:46,900 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:46,900 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:46,903 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:46,903 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:46,904 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:46,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:46,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:48:46,907 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:48:46,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:48:46,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:46,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:48:46,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:46,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:48:46,912 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:48:46,912 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:48:46,913 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:48:46,914 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:48:46,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:48:46,915 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:46,917 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:46,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:48:46,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:46,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:46,919 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:46,919 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:46,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:48:46,920 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:48:46,920 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:48:46,921 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:48:46,922 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:46,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:46,923 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_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a0b335900eb7ac8340f6fa1728e72682341270c88357da83af9b58560bc536f [2023-11-12 00:48:47,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:47,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:47,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:47,488 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:47,488 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:47,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/float-newlib/float_req_bl_0682a.c [2023-11-12 00:48:50,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:51,243 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:51,244 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/sv-benchmarks/c/float-newlib/float_req_bl_0682a.c [2023-11-12 00:48:51,254 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/data/8a8924b29/33bf2b6df7144746b3aa49b569775f69/FLAG79702fecb [2023-11-12 00:48:51,531 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/data/8a8924b29/33bf2b6df7144746b3aa49b569775f69 [2023-11-12 00:48:51,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:51,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:51,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:51,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:51,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:51,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:51,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d0dc6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51, skipping insertion in model container [2023-11-12 00:48:51,546 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:51,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:51,811 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_8e691558-1f75-40e6-bac6-a449b02f165a/sv-benchmarks/c/float-newlib/float_req_bl_0682a.c[5568,5581] [2023-11-12 00:48:51,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:51,834 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:51,886 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_8e691558-1f75-40e6-bac6-a449b02f165a/sv-benchmarks/c/float-newlib/float_req_bl_0682a.c[5568,5581] [2023-11-12 00:48:51,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:51,916 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:51,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51 WrapperNode [2023-11-12 00:48:51,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:51,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:51,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:51,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:51,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:51,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:52,058 INFO L138 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 237 [2023-11-12 00:48:52,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:52,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:52,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:52,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:52,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:52,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:52,128 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:52,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:52,170 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:52,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:52,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:52,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:52,225 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:52,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:52,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:52,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:52,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (1/1) ... [2023-11-12 00:48:52,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:52,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:52,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:52,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:52,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-12 00:48:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:48:52,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:48:52,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-12 00:48:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2023-11-12 00:48:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2023-11-12 00:48:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:48:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-12 00:48:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2023-11-12 00:48:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2023-11-12 00:48:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:48:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:48:52,517 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:52,521 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:49:08,801 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:49:08,810 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:49:08,810 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-12 00:49:08,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:49:08 BoogieIcfgContainer [2023-11-12 00:49:08,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:49:08,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:49:08,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:49:08,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:49:08,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:51" (1/3) ... [2023-11-12 00:49:08,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@864d003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:49:08, skipping insertion in model container [2023-11-12 00:49:08,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:51" (2/3) ... [2023-11-12 00:49:08,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@864d003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:49:08, skipping insertion in model container [2023-11-12 00:49:08,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:49:08" (3/3) ... [2023-11-12 00:49:08,824 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0682a.c [2023-11-12 00:49:08,849 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:49:08,849 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:49:08,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:49:08,931 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;@63070a51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:49:08,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:49:08,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 82 states have (on average 1.6585365853658536) internal successors, (136), 83 states have internal predecessors, (136), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:49:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:49:08,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:08,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:08,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:49:08,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash -540302475, now seen corresponding path program 1 times [2023-11-12 00:49:08,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:49:08,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127512904] [2023-11-12 00:49:08,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:08,985 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 [2023-11-12 00:49:08,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:49:08,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:49:08,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:10,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:49:10,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:10,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:10,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:49:10,232 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:49:10,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127512904] [2023-11-12 00:49:10,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127512904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:10,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:10,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:10,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357604313] [2023-11-12 00:49:10,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:10,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:49:10,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:49:10,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:49:10,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:49:10,281 INFO L87 Difference]: Start difference. First operand has 90 states, 82 states have (on average 1.6585365853658536) internal successors, (136), 83 states have internal predecessors, (136), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:10,323 INFO L93 Difference]: Finished difference Result 178 states and 290 transitions. [2023-11-12 00:49:10,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:49:10,326 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-12 00:49:10,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:10,337 INFO L225 Difference]: With dead ends: 178 [2023-11-12 00:49:10,337 INFO L226 Difference]: Without dead ends: 86 [2023-11-12 00:49:10,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:49:10,347 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:10,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:49:10,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-12 00:49:10,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-12 00:49:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 79 states have internal predecessors, (114), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:49:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 122 transitions. [2023-11-12 00:49:10,403 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 122 transitions. Word has length 14 [2023-11-12 00:49:10,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:10,404 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 122 transitions. [2023-11-12 00:49:10,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:10,405 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 122 transitions. [2023-11-12 00:49:10,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:49:10,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:10,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:10,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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)] Ended with exit code 0 [2023-11-12 00:49:10,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:10,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:49:10,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:10,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1209387195, now seen corresponding path program 1 times [2023-11-12 00:49:10,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:49:10,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742925252] [2023-11-12 00:49:10,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:10,630 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 [2023-11-12 00:49:10,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:49:10,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:49:10,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:11,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-12 00:49:11,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:12,180 INFO L351 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 [2023-11-12 00:49:12,876 INFO L322 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-11-12 00:49:12,877 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 32 [2023-11-12 00:49:12,953 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 00:49:12,953 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 28 [2023-11-12 00:49:14,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:14,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:49:14,842 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:49:14,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742925252] [2023-11-12 00:49:14,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742925252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:14,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:14,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 00:49:14,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078304836] [2023-11-12 00:49:14,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:14,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 00:49:14,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:49:14,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 00:49:14,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:49:14,847 INFO L87 Difference]: Start difference. First operand 86 states and 122 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:19,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:49:21,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:49:24,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:49:26,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:49:27,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:27,111 INFO L93 Difference]: Finished difference Result 148 states and 212 transitions. [2023-11-12 00:49:27,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 00:49:27,113 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-12 00:49:27,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:27,120 INFO L225 Difference]: With dead ends: 148 [2023-11-12 00:49:27,121 INFO L226 Difference]: Without dead ends: 80 [2023-11-12 00:49:27,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-12 00:49:27,124 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 214 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 15 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:27,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 436 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 78 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2023-11-12 00:49:27,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-12 00:49:27,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-11-12 00:49:27,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 73 states have (on average 1.36986301369863) internal successors, (100), 73 states have internal predecessors, (100), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:49:27,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 108 transitions. [2023-11-12 00:49:27,141 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 108 transitions. Word has length 17 [2023-11-12 00:49:27,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:27,142 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 108 transitions. [2023-11-12 00:49:27,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:27,142 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 108 transitions. [2023-11-12 00:49:27,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 00:49:27,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:27,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:27,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:27,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:27,352 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:49:27,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:27,353 INFO L85 PathProgramCache]: Analyzing trace with hash -428817930, now seen corresponding path program 1 times [2023-11-12 00:49:27,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:49:27,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944518025] [2023-11-12 00:49:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:27,354 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 [2023-11-12 00:49:27,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:49:27,356 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:49:27,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:28,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 00:49:28,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:29,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:29,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:49:29,528 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:49:29,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944518025] [2023-11-12 00:49:29,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944518025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:29,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:29,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 00:49:29,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225410542] [2023-11-12 00:49:29,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:29,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 00:49:29,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:49:29,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 00:49:29,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:49:29,531 INFO L87 Difference]: Start difference. First operand 80 states and 108 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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) [2023-11-12 00:49:31,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:31,069 INFO L93 Difference]: Finished difference Result 112 states and 148 transitions. [2023-11-12 00:49:31,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:49:31,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 23 [2023-11-12 00:49:31,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:31,071 INFO L225 Difference]: With dead ends: 112 [2023-11-12 00:49:31,072 INFO L226 Difference]: Without dead ends: 78 [2023-11-12 00:49:31,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-12 00:49:31,073 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 190 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:31,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 351 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-12 00:49:31,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-12 00:49:31,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-12 00:49:31,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 72 states have internal predecessors, (96), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 00:49:31,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2023-11-12 00:49:31,086 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 102 transitions. Word has length 23 [2023-11-12 00:49:31,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:31,087 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 102 transitions. [2023-11-12 00:49:31,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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) [2023-11-12 00:49:31,087 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 102 transitions. [2023-11-12 00:49:31,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 00:49:31,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:31,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:31,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:49:31,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:31,312 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:49:31,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash -451697418, now seen corresponding path program 1 times [2023-11-12 00:49:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:49:31,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132837071] [2023-11-12 00:49:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:31,314 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 [2023-11-12 00:49:31,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:49:31,315 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:49:31,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e691558-1f75-40e6-bac6-a449b02f165a/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-12 00:49:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:32,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-12 00:49:32,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:33,655 INFO L351 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 [2023-11-12 00:49:33,679 INFO L351 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 35 treesize of output 19