./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje --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 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:49:07,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:49:07,709 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:49:07,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:49:07,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:49:07,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:49:07,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:49:07,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:49:07,757 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:49:07,759 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:49:07,760 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:49:07,761 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:49:07,762 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:49:07,762 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:49:07,762 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:49:07,766 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:49:07,766 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:49:07,767 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:49:07,767 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:49:07,767 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:49:07,768 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:49:07,768 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:49:07,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:49:07,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:49:07,773 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:49:07,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:49:07,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:49:07,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:49:07,774 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:49:07,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:49:07,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:49:07,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:49:07,776 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:49:07,776 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:49:07,777 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:49:07,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:49:07,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:49:07,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:49:07,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:49:07,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:49:07,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:49:07,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:49:07,779 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:49:07,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:49:07,780 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:49:07,780 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:49:07,781 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:49:07,781 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_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f [2024-11-09 05:49:08,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:49:08,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:49:08,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:49:08,095 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:49:08,095 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:49:08,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i Unable to find full path for "g++" [2024-11-09 05:49:10,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:49:10,295 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:49:10,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2024-11-09 05:49:10,302 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/data/d680caa26/0c3a62d0c0214fafb7dba7b7db66662a/FLAG0eb10677c [2024-11-09 05:49:10,325 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/data/d680caa26/0c3a62d0c0214fafb7dba7b7db66662a [2024-11-09 05:49:10,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:49:10,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:49:10,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:49:10,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:49:10,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:49:10,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a7521d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10, skipping insertion in model container [2024-11-09 05:49:10,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,368 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:49:10,614 WARN L250 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_970f52fc-7915-4c98-936d-75eb73b3e1b1/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2024-11-09 05:49:10,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:49:10,629 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:49:10,654 WARN L250 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_970f52fc-7915-4c98-936d-75eb73b3e1b1/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2024-11-09 05:49:10,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:49:10,679 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:49:10,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10 WrapperNode [2024-11-09 05:49:10,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:49:10,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:49:10,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:49:10,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:49:10,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,717 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2024-11-09 05:49:10,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:49:10,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:49:10,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:49:10,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:49:10,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:49:10,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:49:10,753 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:49:10,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:49:10,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (1/1) ... [2024-11-09 05:49:10,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:49:10,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:49:10,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:49:10,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:49:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:49:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-09 05:49:10,820 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-09 05:49:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-09 05:49:10,822 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-09 05:49:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:49:10,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:49:10,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:49:10,902 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:49:10,905 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:49:11,051 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 05:49:11,051 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:49:11,112 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:49:11,116 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:49:11,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:49:11 BoogieIcfgContainer [2024-11-09 05:49:11,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:49:11,120 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:49:11,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:49:11,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:49:11,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:49:10" (1/3) ... [2024-11-09 05:49:11,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34919492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:49:11, skipping insertion in model container [2024-11-09 05:49:11,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:10" (2/3) ... [2024-11-09 05:49:11,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34919492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:49:11, skipping insertion in model container [2024-11-09 05:49:11,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:49:11" (3/3) ... [2024-11-09 05:49:11,130 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2024-11-09 05:49:11,148 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:49:11,148 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:49:11,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:49:11,222 INFO L333 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, 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;@7c8b0fbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:49:11,222 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:49:11,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 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) [2024-11-09 05:49:11,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 05:49:11,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:11,236 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:11,237 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:49:11,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:11,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1568653486, now seen corresponding path program 1 times [2024-11-09 05:49:11,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:49:11,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026603867] [2024-11-09 05:49:11,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:11,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:49:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:49:11,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:49:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:49:11,451 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:49:11,452 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:49:11,454 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:49:11,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:49:11,459 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:49:11,481 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:49:11,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:49:11 BoogieIcfgContainer [2024-11-09 05:49:11,485 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:49:11,496 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:49:11,496 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:49:11,496 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:49:11,497 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:49:11" (3/4) ... [2024-11-09 05:49:11,503 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:49:11,504 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:49:11,505 INFO L158 Benchmark]: Toolchain (without parser) took 1174.77ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 94.4MB in the beginning and 135.9MB in the end (delta: -41.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:49:11,506 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 132.1MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:49:11,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.01ms. Allocated memory is still 132.1MB. Free memory was 94.0MB in the beginning and 81.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:49:11,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.49ms. Allocated memory is still 132.1MB. Free memory was 81.5MB in the beginning and 79.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:49:11,507 INFO L158 Benchmark]: Boogie Preprocessor took 32.75ms. Allocated memory is still 132.1MB. Free memory was 79.8MB in the beginning and 79.0MB in the end (delta: 830.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:49:11,508 INFO L158 Benchmark]: RCFGBuilder took 364.56ms. Allocated memory is still 132.1MB. Free memory was 79.0MB in the beginning and 66.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:49:11,511 INFO L158 Benchmark]: TraceAbstraction took 374.75ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 66.0MB in the beginning and 135.9MB in the end (delta: -69.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-11-09 05:49:11,511 INFO L158 Benchmark]: Witness Printer took 8.28ms. Allocated memory is still 165.7MB. Free memory was 135.9MB in the beginning and 135.9MB in the end (delta: 55.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:49:11,516 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 132.1MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.01ms. Allocated memory is still 132.1MB. Free memory was 94.0MB in the beginning and 81.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.49ms. Allocated memory is still 132.1MB. Free memory was 81.5MB in the beginning and 79.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.75ms. Allocated memory is still 132.1MB. Free memory was 79.8MB in the beginning and 79.0MB in the end (delta: 830.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 364.56ms. Allocated memory is still 132.1MB. Free memory was 79.0MB in the beginning and 66.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 374.75ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 66.0MB in the beginning and 135.9MB in the end (delta: -69.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Witness Printer took 8.28ms. Allocated memory is still 165.7MB. Free memory was 135.9MB in the beginning and 135.9MB in the end (delta: 55.4kB). 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: 51]: 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 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=53] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L42] RET, EXPR f(IN) VAL [IN=53] [L42] CALL, EXPR fp(IN) VAL [\old(x)=53] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L42] RET, EXPR fp(IN) VAL [IN=53] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L44] RET, EXPR f(x) VAL [IN=53, x=54] [L44] CALL, EXPR fp(x) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L44] RET, EXPR fp(x) VAL [IN=53, x=54] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=53] [L51] reach_error() VAL [IN=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 05:49:11,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje --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 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:49:14,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:49:14,114 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:49:14,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:49:14,124 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:49:14,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:49:14,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:49:14,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:49:14,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:49:14,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:49:14,163 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:49:14,163 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:49:14,163 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:49:14,164 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:49:14,164 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:49:14,168 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:49:14,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:49:14,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:49:14,169 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:49:14,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:49:14,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:49:14,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:49:14,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:49:14,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:49:14,171 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:49:14,171 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:49:14,172 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:49:14,172 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:49:14,172 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:49:14,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:49:14,173 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:49:14,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:49:14,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:49:14,176 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:49:14,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:49:14,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:49:14,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:49:14,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:49:14,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:49:14,178 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:49:14,178 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:49:14,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:49:14,181 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:49:14,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ed3942f8a28a8a24515254c1482e383d8fc6f528b158a90f262f1167d5b8c4f [2024-11-09 05:49:14,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:49:14,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:49:14,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:49:14,610 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:49:14,611 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:49:14,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i Unable to find full path for "g++" [2024-11-09 05:49:16,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:49:16,900 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:49:16,901 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2024-11-09 05:49:16,908 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/data/9f89de3d1/c3386c19de274f6daac437338f6a2089/FLAGf95dff0ce [2024-11-09 05:49:16,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/data/9f89de3d1/c3386c19de274f6daac437338f6a2089 [2024-11-09 05:49:16,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:49:16,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:49:16,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:49:16,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:49:16,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:49:16,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:49:16" (1/1) ... [2024-11-09 05:49:16,935 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@febd6e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:16, skipping insertion in model container [2024-11-09 05:49:16,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:49:16" (1/1) ... [2024-11-09 05:49:16,956 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:49:17,172 WARN L250 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_970f52fc-7915-4c98-936d-75eb73b3e1b1/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2024-11-09 05:49:17,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:49:17,200 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:49:17,237 WARN L250 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_970f52fc-7915-4c98-936d-75eb73b3e1b1/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1743,1756] [2024-11-09 05:49:17,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:49:17,286 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:49:17,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17 WrapperNode [2024-11-09 05:49:17,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:49:17,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:49:17,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:49:17,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:49:17,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (1/1) ... [2024-11-09 05:49:17,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (1/1) ... [2024-11-09 05:49:17,360 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2024-11-09 05:49:17,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:49:17,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:49:17,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:49:17,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:49:17,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (1/1) ... [2024-11-09 05:49:17,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (1/1) ... [2024-11-09 05:49:17,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (1/1) ... [2024-11-09 05:49:17,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (1/1) ... [2024-11-09 05:49:17,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (1/1) ... [2024-11-09 05:49:17,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (1/1) ... [2024-11-09 05:49:17,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (1/1) ... [2024-11-09 05:49:17,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (1/1) ... [2024-11-09 05:49:17,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:49:17,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:49:17,417 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:49:17,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:49:17,418 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (1/1) ... [2024-11-09 05:49:17,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:49:17,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:49:17,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:49:17,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:49:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:49:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-09 05:49:17,488 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-09 05:49:17,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:49:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-09 05:49:17,489 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-09 05:49:17,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:49:17,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:49:17,569 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:49:17,572 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:49:23,085 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-09 05:49:23,085 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:49:23,098 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:49:23,099 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:49:23,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:49:23 BoogieIcfgContainer [2024-11-09 05:49:23,100 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:49:23,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:49:23,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:49:23,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:49:23,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:49:16" (1/3) ... [2024-11-09 05:49:23,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178bdb51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:49:23, skipping insertion in model container [2024-11-09 05:49:23,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:49:17" (2/3) ... [2024-11-09 05:49:23,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178bdb51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:49:23, skipping insertion in model container [2024-11-09 05:49:23,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:49:23" (3/3) ... [2024-11-09 05:49:23,111 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2024-11-09 05:49:23,131 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:49:23,132 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:49:23,196 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:49:23,203 INFO L333 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, 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;@6a82d8cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:49:23,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:49:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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) [2024-11-09 05:49:23,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 05:49:23,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:23,220 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:23,221 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:49:23,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:23,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2024-11-09 05:49:23,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:49:23,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964640447] [2024-11-09 05:49:23,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:23,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:49:23,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:49:23,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:49:23,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:49:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:49:25,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:49:25,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:49:25,612 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 05:49:25,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:49:25,613 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:49:25,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964640447] [2024-11-09 05:49:25,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964640447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:49:25,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:49:25,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:49:25,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348732687] [2024-11-09 05:49:25,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:49:25,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:49:25,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:49:25,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:49:25,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:49:25,658 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:49:25,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:49:25,675 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2024-11-09 05:49:25,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:49:25,677 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2024-11-09 05:49:25,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:49:25,682 INFO L225 Difference]: With dead ends: 43 [2024-11-09 05:49:25,682 INFO L226 Difference]: Without dead ends: 19 [2024-11-09 05:49:25,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:49:25,689 INFO L432 NwaCegarLoop]: 24 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, 24 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 [2024-11-09 05:49:25,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:49:25,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-09 05:49:25,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-09 05:49:25,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 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) [2024-11-09 05:49:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2024-11-09 05:49:25,727 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2024-11-09 05:49:25,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:49:25,728 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2024-11-09 05:49:25,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:49:25,728 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-09 05:49:25,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 05:49:25,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:49:25,730 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:49:25,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:49:25,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:49:25,931 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:49:25,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:49:25,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2024-11-09 05:49:25,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:49:25,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299113691] [2024-11-09 05:49:25,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:49:25,933 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 [2024-11-09 05:49:25,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:49:25,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:49:25,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:50:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:50:17,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:50:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:50:25,476 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 05:50:25,477 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:50:25,478 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:50:25,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 05:50:25,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:50:25,688 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 05:50:25,723 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:50:25,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:50:25 BoogieIcfgContainer [2024-11-09 05:50:25,730 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:50:25,732 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:50:25,733 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:50:25,733 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:50:25,734 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:49:23" (3/4) ... [2024-11-09 05:50:25,734 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 05:50:25,792 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:50:25,797 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:50:25,798 INFO L158 Benchmark]: Toolchain (without parser) took 68871.87ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 47.7MB in the beginning and 57.2MB in the end (delta: -9.5MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2024-11-09 05:50:25,799 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 71.3MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:50:25,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.67ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 47.6MB in the beginning and 73.1MB in the end (delta: -25.5MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-11-09 05:50:25,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.58ms. Allocated memory is still 94.4MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:50:25,800 INFO L158 Benchmark]: Boogie Preprocessor took 49.18ms. Allocated memory is still 94.4MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:50:25,800 INFO L158 Benchmark]: RCFGBuilder took 5686.22ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 59.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 05:50:25,800 INFO L158 Benchmark]: TraceAbstraction took 62627.73ms. Allocated memory is still 94.4MB. Free memory was 58.8MB in the beginning and 59.3MB in the end (delta: -478.3kB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2024-11-09 05:50:25,801 INFO L158 Benchmark]: Witness Printer took 66.04ms. Allocated memory is still 94.4MB. Free memory was 59.3MB in the beginning and 57.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:50:25,808 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 71.3MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.67ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 47.6MB in the beginning and 73.1MB in the end (delta: -25.5MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.58ms. Allocated memory is still 94.4MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.18ms. Allocated memory is still 94.4MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5686.22ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 59.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 62627.73ms. Allocated memory is still 94.4MB. Free memory was 58.8MB in the beginning and 59.3MB in the end (delta: -478.3kB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Witness Printer took 66.04ms. Allocated memory is still 94.4MB. Free memory was 59.3MB in the beginning and 57.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -1.4f && IN < 1.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=1.3393274545669556] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=1.3393274545669556, \result=0.9763604402542114] [L42] RET, EXPR f(IN) VAL [IN=1.3393274545669556] [L42] CALL, EXPR fp(IN) VAL [\old(x)=1.3393274545669556] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.3393274545669556, \result=0.24518881738185883] [L42] RET, EXPR fp(IN) VAL [IN=1.3393274545669556] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=-2.6427483558654785] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-2.6427483558654785, \result=-0.819400429725647] [L44] RET, EXPR f(x) VAL [x=-2.6427483558654785] [L44] CALL, EXPR fp(x) VAL [\old(x)=-2.6427483558654785] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-2.6427483558654785, \result=0.013507634401321411] [L44] RET, EXPR fp(x) VAL [x=-2.6427483558654785] [L44] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) [L51] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.5s, OverallIterations: 2, TraceHistogramMax: 2, 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, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 53.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 6/6 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 proved your program to be incorrect! [2024-11-09 05:50:25,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_970f52fc-7915-4c98-936d-75eb73b3e1b1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE