./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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 61baff025ed1826778930d2297acbbb0c7636497384ff5cdb264bdd3e935514a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:14:48,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:14:48,218 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:14:48,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:14:48,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:14:48,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:14:48,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:14:48,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:14:48,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:14:48,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:14:48,250 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:14:48,250 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:14:48,250 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:14:48,251 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:14:48,251 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:14:48,251 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:14:48,252 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:14:48,252 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:14:48,252 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:14:48,253 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:14:48,253 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:14:48,254 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:14:48,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:14:48,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:14:48,256 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:14:48,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:14:48,256 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:14:48,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:14:48,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:14:48,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:14:48,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:14:48,258 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:14:48,258 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:14:48,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:14:48,259 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:14:48,259 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:14:48,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:14:48,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:14:48,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:14:48,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:14:48,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:14:48,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:14:48,262 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:14:48,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:14:48,263 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:14:48,263 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:14:48,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:14:48,263 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_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61baff025ed1826778930d2297acbbb0c7636497384ff5cdb264bdd3e935514a [2024-11-09 05:14:48,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:14:48,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:14:48,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:14:48,561 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:14:48,561 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:14:48,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i Unable to find full path for "g++" [2024-11-09 05:14:50,706 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:14:50,924 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:14:50,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i [2024-11-09 05:14:50,934 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/data/5f563f61b/2e727ed6c7fe45289ce50408da3242e9/FLAG549dc0588 [2024-11-09 05:14:51,300 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/data/5f563f61b/2e727ed6c7fe45289ce50408da3242e9 [2024-11-09 05:14:51,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:14:51,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:14:51,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:14:51,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:14:51,312 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:14:51,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3fe65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51, skipping insertion in model container [2024-11-09 05:14:51,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:14:51,504 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_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i[915,928] [2024-11-09 05:14:51,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:14:51,560 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:14:51,571 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_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i[915,928] [2024-11-09 05:14:51,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:14:51,610 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:14:51,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51 WrapperNode [2024-11-09 05:14:51,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:14:51,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:14:51,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:14:51,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:14:51,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,654 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2024-11-09 05:14:51,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:14:51,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:14:51,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:14:51,655 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:14:51,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,674 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:14:51,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:14:51,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:14:51,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:14:51,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (1/1) ... [2024-11-09 05:14:51,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:14:51,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:14:51,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:14:51,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:14:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:14:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:14:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:14:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:14:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:14:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:14:51,822 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:14:51,824 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:14:52,110 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-09 05:14:52,111 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:14:52,229 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:14:52,229 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:14:52,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:14:52 BoogieIcfgContainer [2024-11-09 05:14:52,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:14:52,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:14:52,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:14:52,237 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:14:52,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:14:51" (1/3) ... [2024-11-09 05:14:52,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b811a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:14:52, skipping insertion in model container [2024-11-09 05:14:52,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:51" (2/3) ... [2024-11-09 05:14:52,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b811a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:14:52, skipping insertion in model container [2024-11-09 05:14:52,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:14:52" (3/3) ... [2024-11-09 05:14:52,243 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-43.i [2024-11-09 05:14:52,264 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:14:52,265 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:14:52,335 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:14:52,342 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;@5c0fae9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:14:52,342 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:14:52,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:14:52,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 05:14:52,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:14:52,355 INFO L215 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:14:52,356 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:14:52,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:14:52,361 INFO L85 PathProgramCache]: Analyzing trace with hash 637540756, now seen corresponding path program 1 times [2024-11-09 05:14:52,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:14:52,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013659471] [2024-11-09 05:14:52,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:14:52,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:14:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:14:52,686 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:14:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:14:52,801 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:14:52,803 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:14:52,805 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:14:52,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:14:52,811 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:14:52,865 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:14:52,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:14:52 BoogieIcfgContainer [2024-11-09 05:14:52,868 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:14:52,869 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:14:52,869 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:14:52,869 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:14:52,870 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:14:52" (3/4) ... [2024-11-09 05:14:52,872 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:14:52,874 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:14:52,875 INFO L158 Benchmark]: Toolchain (without parser) took 1570.08ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 82.8MB in the beginning and 90.0MB in the end (delta: -7.2MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2024-11-09 05:14:52,875 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 123.7MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:14:52,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.64ms. Allocated memory is still 123.7MB. Free memory was 82.8MB in the beginning and 68.7MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:14:52,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.51ms. Allocated memory is still 123.7MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:14:52,877 INFO L158 Benchmark]: Boogie Preprocessor took 29.50ms. Allocated memory is still 123.7MB. Free memory was 66.4MB in the beginning and 64.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:14:52,878 INFO L158 Benchmark]: RCFGBuilder took 545.38ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 64.9MB in the beginning and 118.3MB in the end (delta: -53.4MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-11-09 05:14:52,878 INFO L158 Benchmark]: TraceAbstraction took 635.08ms. Allocated memory is still 157.3MB. Free memory was 117.3MB in the beginning and 90.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 05:14:52,879 INFO L158 Benchmark]: Witness Printer took 4.83ms. Allocated memory is still 157.3MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:14:52,882 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 123.7MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.64ms. Allocated memory is still 123.7MB. Free memory was 82.8MB in the beginning and 68.7MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.51ms. Allocated memory is still 123.7MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.50ms. Allocated memory is still 123.7MB. Free memory was 66.4MB in the beginning and 64.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.38ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 64.9MB in the beginning and 118.3MB in the end (delta: -53.4MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 635.08ms. Allocated memory is still 157.3MB. Free memory was 117.3MB in the beginning and 90.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.83ms. Allocated memory is still 157.3MB. Free memory is still 90.0MB. 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: 19]: 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 51, overapproximation of someBinaryArithmeticDOUBLEoperation at line 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryArithmeticFLOAToperation at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 64; [L23] float var_1_4 = 64.4; [L24] float var_1_5 = 0.2; [L25] double var_1_8 = 31.75; [L26] double var_1_9 = 50.375; [L27] double var_1_10 = 99.25; [L28] double var_1_11 = 16.4; [L29] double var_1_12 = 64.5; [L30] float var_1_13 = 8.75; [L31] float var_1_14 = 127.1; [L32] unsigned short int var_1_15 = 5; [L33] unsigned char var_1_18 = 0; [L34] unsigned char var_1_19 = 0; [L35] unsigned char var_1_20 = 0; [L36] unsigned char var_1_21 = 8; [L37] double last_1_var_1_8 = 31.75; [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] CALL updateLastVariables() [L86] last_1_var_1_8 = var_1_8 [L96] RET updateLastVariables() [L97] CALL updateVariables() [L63] var_1_4 = __VERIFIER_nondet_float() [L64] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_5=1/5, var_1_8=127/4, var_1_9=403/8] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_5=1/5, var_1_8=127/4, var_1_9=403/8] [L65] var_1_5 = __VERIFIER_nondet_float() [L66] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4, var_1_9=403/8] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854776000e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4, var_1_9=403/8] [L67] var_1_9 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L69] CALL assume_abort_if_not(var_1_9 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_9 != 0.0F) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_10=397/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L70] var_1_10 = __VERIFIER_nondet_double() [L71] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_11=82/5, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L72] var_1_11 = __VERIFIER_nondet_double() [L73] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=129/2, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L74] var_1_12 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_14=1271/10, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L76] var_1_14 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L78] var_1_19 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L80] CALL assume_abort_if_not(var_1_19 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_19 <= 0) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_21=8, var_1_8=127/4] [L81] var_1_21 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_8=127/4] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_8=127/4] [L83] CALL assume_abort_if_not(var_1_21 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_21=64, var_1_8=127/4] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_21 <= 254) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_13=35/4, var_1_15=5, var_1_18=0, var_1_19=-256, var_1_1=64, var_1_20=0, var_1_21=64, var_1_8=127/4] [L97] RET updateVariables() [L98] CALL step() [L41] COND FALSE !((- (var_1_5 / var_1_9)) != last_1_var_1_8) [L46] var_1_8 = var_1_12 [L48] var_1_13 = (128.75f + var_1_14) [L49] var_1_18 = var_1_19 [L50] var_1_20 = var_1_21 [L51] COND FALSE !(var_1_13 != ((((var_1_13) > ((var_1_4 - var_1_5))) ? (var_1_13) : ((var_1_4 - var_1_5))))) [L56] var_1_1 = var_1_20 [L58] COND FALSE !(\read(var_1_18)) [L98] RET step() [L99] CALL, EXPR property() [L89-L90] return ((((((var_1_13 != ((((var_1_13) > ((var_1_4 - var_1_5))) ? (var_1_13) : ((var_1_4 - var_1_5))))) ? (var_1_18 ? (var_1_1 == ((signed short int) var_1_20)) : 1) : (var_1_1 == ((signed short int) var_1_20))) && (((- (var_1_5 / var_1_9)) != last_1_var_1_8) ? ((var_1_4 != (- var_1_9)) ? (var_1_8 == ((double) ((var_1_10 + var_1_11) - var_1_12))) : 1) : (var_1_8 == ((double) var_1_12)))) && (var_1_13 == ((float) (128.75f + var_1_14)))) && (var_1_18 ? (var_1_15 == ((unsigned short int) (var_1_20 + var_1_20))) : 1)) && (var_1_18 == ((unsigned char) var_1_19))) && (var_1_20 == ((unsigned char) var_1_21)) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=127/4, var_1_15=5, var_1_18=-256, var_1_19=-256, var_1_1=64, var_1_20=64, var_1_21=64, var_1_8=127/4] [L19] reach_error() VAL [isInitial=1, last_1_var_1_8=127/4, var_1_12=127/4, var_1_15=5, var_1_18=-256, var_1_19=-256, var_1_1=64, var_1_20=64, var_1_21=64, var_1_8=127/4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 12, 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=30occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 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 05:14:52,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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 61baff025ed1826778930d2297acbbb0c7636497384ff5cdb264bdd3e935514a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:14:55,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:14:55,492 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:14:55,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:14:55,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:14:55,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:14:55,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:14:55,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:14:55,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:14:55,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:14:55,541 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:14:55,541 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:14:55,542 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:14:55,543 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:14:55,544 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:14:55,544 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:14:55,545 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:14:55,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:14:55,549 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:14:55,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:14:55,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:14:55,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:14:55,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:14:55,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:14:55,551 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:14:55,551 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:14:55,551 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:14:55,552 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:14:55,552 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:14:55,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:14:55,553 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:14:55,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:14:55,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:14:55,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:14:55,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:14:55,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:14:55,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:14:55,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:14:55,555 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:14:55,556 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:14:55,557 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:14:55,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:14:55,557 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:14:55,557 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_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61baff025ed1826778930d2297acbbb0c7636497384ff5cdb264bdd3e935514a [2024-11-09 05:14:55,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:14:55,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:14:55,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:14:55,995 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:14:55,995 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:14:55,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i Unable to find full path for "g++" [2024-11-09 05:14:58,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:14:58,311 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:14:58,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i [2024-11-09 05:14:58,324 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/data/ffc9c5100/48b698b08904422087a0620c174f4c8b/FLAG6a19c420c [2024-11-09 05:14:58,345 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/data/ffc9c5100/48b698b08904422087a0620c174f4c8b [2024-11-09 05:14:58,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:14:58,350 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:14:58,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:14:58,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:14:58,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:14:58,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3acae400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58, skipping insertion in model container [2024-11-09 05:14:58,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,404 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:14:58,606 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_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i[915,928] [2024-11-09 05:14:58,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:14:58,673 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:14:58,688 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_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-43.i[915,928] [2024-11-09 05:14:58,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:14:58,732 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:14:58,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58 WrapperNode [2024-11-09 05:14:58,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:14:58,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:14:58,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:14:58,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:14:58,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,772 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,817 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2024-11-09 05:14:58,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:14:58,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:14:58,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:14:58,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:14:58,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:14:58,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:14:58,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:14:58,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:14:58,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (1/1) ... [2024-11-09 05:14:58,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:14:58,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:14:58,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:14:58,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:14:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:14:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:14:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:14:58,959 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:14:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:14:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:14:59,062 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:14:59,064 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:15:07,834 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-09 05:15:07,834 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:15:07,853 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:15:07,853 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:15:07,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:07 BoogieIcfgContainer [2024-11-09 05:15:07,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:15:07,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:15:07,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:15:07,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:15:07,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:14:58" (1/3) ... [2024-11-09 05:15:07,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdbaca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:15:07, skipping insertion in model container [2024-11-09 05:15:07,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:14:58" (2/3) ... [2024-11-09 05:15:07,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdbaca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:15:07, skipping insertion in model container [2024-11-09 05:15:07,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:15:07" (3/3) ... [2024-11-09 05:15:07,866 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-43.i [2024-11-09 05:15:07,888 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:15:07,888 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:15:07,984 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:15:07,991 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;@26415b7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:15:07,991 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:15:07,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:15:08,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 05:15:08,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:08,009 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:15:08,010 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:15:08,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:08,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1067122878, now seen corresponding path program 1 times [2024-11-09 05:15:08,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:15:08,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053665213] [2024-11-09 05:15:08,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:08,031 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 05:15:08,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:15:08,035 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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 05:15:08,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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 05:15:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:09,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:15:09,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:15:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-09 05:15:09,255 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:15:09,256 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:15:09,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053665213] [2024-11-09 05:15:09,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053665213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:15:09,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:15:09,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:15:09,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125821930] [2024-11-09 05:15:09,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:15:09,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:15:09,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:15:09,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:15:09,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:15:09,294 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 05:15:09,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:15:09,331 INFO L93 Difference]: Finished difference Result 85 states and 136 transitions. [2024-11-09 05:15:09,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:15:09,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2024-11-09 05:15:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:15:09,344 INFO L225 Difference]: With dead ends: 85 [2024-11-09 05:15:09,344 INFO L226 Difference]: Without dead ends: 42 [2024-11-09 05:15:09,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 81 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 05:15:09,355 INFO L432 NwaCegarLoop]: 58 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, 58 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 05:15:09,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:15:09,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-09 05:15:09,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-09 05:15:09,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:15:09,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 58 transitions. [2024-11-09 05:15:09,411 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 58 transitions. Word has length 82 [2024-11-09 05:15:09,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:15:09,413 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 58 transitions. [2024-11-09 05:15:09,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 05:15:09,414 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-11-09 05:15:09,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 05:15:09,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:09,420 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:15:09,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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 05:15:09,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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 05:15:09,622 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:15:09,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:09,623 INFO L85 PathProgramCache]: Analyzing trace with hash 691383422, now seen corresponding path program 1 times [2024-11-09 05:15:09,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:15:09,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691393675] [2024-11-09 05:15:09,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:09,625 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 05:15:09,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:15:09,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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 05:15:09,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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 05:15:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:10,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:15:10,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:15:11,876 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 101 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-09 05:15:11,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:15:13,524 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-09 05:15:13,525 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:15:13,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691393675] [2024-11-09 05:15:13,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691393675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:15:13,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1736194816] [2024-11-09 05:15:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:13,529 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:15:13,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:15:13,532 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:15:13,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 05:15:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:16,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:15:16,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:15:16,543 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 101 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-09 05:15:16,544 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:15:17,851 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-09 05:15:17,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1736194816] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:15:17,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604368717] [2024-11-09 05:15:17,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:17,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:15:17,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:15:17,855 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:15:17,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:15:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:18,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:15:18,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:15:19,353 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 101 proven. 6 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-09 05:15:19,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:15:20,642 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 27 proven. 6 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-09 05:15:20,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604368717] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:15:20,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:15:20,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 8 [2024-11-09 05:15:20,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89952240] [2024-11-09 05:15:20,645 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:15:20,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:15:20,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:15:20,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:15:20,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:15:20,652 INFO L87 Difference]: Start difference. First operand 42 states and 58 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:15:25,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:15:27,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:15:29,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:15:29,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:15:29,018 INFO L93 Difference]: Finished difference Result 89 states and 120 transitions. [2024-11-09 05:15:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:15:29,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 82 [2024-11-09 05:15:29,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:15:29,132 INFO L225 Difference]: With dead ends: 89 [2024-11-09 05:15:29,132 INFO L226 Difference]: Without dead ends: 50 [2024-11-09 05:15:29,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 478 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2024-11-09 05:15:29,134 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 85 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:15:29,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 89 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 79 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2024-11-09 05:15:29,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-09 05:15:29,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2024-11-09 05:15:29,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:15:29,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2024-11-09 05:15:29,146 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 82 [2024-11-09 05:15:29,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:15:29,146 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2024-11-09 05:15:29,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:15:29,147 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2024-11-09 05:15:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 05:15:29,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:15:29,149 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:15:29,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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)] Forceful destruction successful, exit code 0 [2024-11-09 05:15:29,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:15:29,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:15:29,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:15:29,750 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:15:29,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:15:29,751 INFO L85 PathProgramCache]: Analyzing trace with hash 693230464, now seen corresponding path program 1 times [2024-11-09 05:15:29,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:15:29,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065885690] [2024-11-09 05:15:29,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:15:29,751 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 05:15:29,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:15:29,753 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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 05:15:29,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e52bc32-3f22-4feb-a2e6-98acdd172ef2/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 (6)] Waiting until timeout for monitored process [2024-11-09 05:15:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:15:31,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 05:15:31,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:04,132 WARN L851 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-09 05:16:06,239 WARN L873 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2024-11-09 05:16:46,622 WARN L851 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (= c_~var_1_19~0 c_~var_1_18~0) (= c_~var_1_21~0 c_~var_1_20~0) (= (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 515.0 4.0)) c_~var_1_14~0) c_~var_1_13~0) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-09 05:16:48,757 WARN L873 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (= c_~var_1_19~0 c_~var_1_18~0) (= c_~var_1_21~0 c_~var_1_20~0) (= (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 515.0 4.0)) c_~var_1_14~0) c_~var_1_13~0) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2024-11-09 05:17:46,826 WARN L851 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (= c_~var_1_19~0 c_~var_1_18~0) (= c_~var_1_21~0 c_~var_1_20~0) (= (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 515.0 4.0)) c_~var_1_14~0) c_~var_1_13~0) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (let ((.cse0 (fp.sub c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0))) (or (fp.eq c_~var_1_13~0 .cse0) (fp.gt c_~var_1_13~0 .cse0))) (= c_~var_1_1~0 ((_ zero_extend 8) c_~var_1_20~0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-09 05:17:48,946 WARN L873 $PredicateComparison]: unable to prove that (and (bvsle ((_ zero_extend 24) c_~var_1_19~0) (_ bv0 32)) (= c_~var_1_19~0 c_~var_1_18~0) (= c_~var_1_21~0 c_~var_1_20~0) (= (fp.add c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 515.0 4.0)) c_~var_1_14~0) c_~var_1_13~0) (fp.geq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (= c_~var_1_8~0 c_~var_1_12~0) (fp.eq (fp.neg (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_5~0) c_~var_1_9~0)) c_~last_1_var_1_8~0) (fp.leq c_~var_1_12~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (let ((.cse0 (fp.sub c_currentRoundingMode c_~var_1_4~0 c_~var_1_5~0))) (or (fp.eq c_~var_1_13~0 .cse0) (fp.gt c_~var_1_13~0 .cse0))) (= c_~var_1_1~0 ((_ zero_extend 8) c_~var_1_20~0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2024-11-09 05:21:12,144 WARN L851 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_property_#res#1| (_ bv1 32)) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 515.0 4.0)))) (or (exists ((~var_1_5~0 (_ FloatingPoint 8 24)) (~last_1_var_1_8~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 11 53))) (and (fp.eq (fp.neg (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_5~0) ~var_1_9~0)) ~last_1_var_1_8~0) (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24))) (fp.eq (fp.add roundNearestTiesToEven .cse0 ~var_1_14~0) (fp.sub roundNearestTiesToEven ~var_1_4~0 ~var_1_5~0))))) (exists ((~var_1_5~0 (_ FloatingPoint 8 24)) (~last_1_var_1_8~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 11 53))) (and (fp.eq (fp.neg (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_5~0) ~var_1_9~0)) ~last_1_var_1_8~0) (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24))) (fp.gt (fp.add roundNearestTiesToEven .cse0 ~var_1_14~0) (fp.sub roundNearestTiesToEven ~var_1_4~0 ~var_1_5~0)))))))) is different from false [2024-11-09 05:21:35,284 WARN L851 $PredicateComparison]: unable to prove that (and (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 515.0 4.0)))) (or (exists ((~var_1_5~0 (_ FloatingPoint 8 24)) (~last_1_var_1_8~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 11 53))) (and (fp.eq (fp.neg (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_5~0) ~var_1_9~0)) ~last_1_var_1_8~0) (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24))) (fp.eq (fp.add roundNearestTiesToEven .cse0 ~var_1_14~0) (fp.sub roundNearestTiesToEven ~var_1_4~0 ~var_1_5~0))))) (exists ((~var_1_5~0 (_ FloatingPoint 8 24)) (~last_1_var_1_8~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 11 53))) (and (fp.eq (fp.neg (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ~var_1_5~0) ~var_1_9~0)) ~last_1_var_1_8~0) (exists ((~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24))) (fp.gt (fp.add roundNearestTiesToEven .cse0 ~var_1_14~0) (fp.sub roundNearestTiesToEven ~var_1_4~0 ~var_1_5~0))))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) is different from false [2024-11-09 05:21:35,302 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 170 proven. 18 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 05:21:35,303 INFO L311 TraceCheckSpWp]: Computing backward predicates...