./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E --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 4557fd955b08b5fada9f3a6efa621afd9324a377fdc4d7b9e90703dc668aa740 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:37:49,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:37:49,666 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:37:49,672 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:37:49,673 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:37:49,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:37:49,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:37:49,701 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:37:49,701 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:37:49,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:37:49,702 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:37:49,702 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:37:49,702 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:37:49,702 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:37:49,702 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:37:49,702 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:37:49,702 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:37:49,703 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:37:49,703 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:37:49,703 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:37:49,703 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:37:49,703 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:37:49,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:37:49,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:37:49,704 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:37:49,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:37:49,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:37:49,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:37:49,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:37:49,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:37:49,705 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:37:49,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:37:49,705 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:37:49,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:37:49,706 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:37:49,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:37:49,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:37:49,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:37:49,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:37:49,706 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:37:49,706 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:37:49,707 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:37:49,707 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:37:49,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:37:49,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:37:49,707 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:37:49,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:37:49,707 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E 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 -> 4557fd955b08b5fada9f3a6efa621afd9324a377fdc4d7b9e90703dc668aa740 [2024-11-14 04:37:50,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:37:50,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:37:50,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:37:50,078 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:37:50,079 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:37:50,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i Unable to find full path for "g++" [2024-11-14 04:37:52,118 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:37:52,442 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:37:52,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i [2024-11-14 04:37:52,453 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/data/c212b0985/f7ca3150e6594334b18c29a8bedaf500/FLAG431515b8f [2024-11-14 04:37:52,468 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/data/c212b0985/f7ca3150e6594334b18c29a8bedaf500 [2024-11-14 04:37:52,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:37:52,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:37:52,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:37:52,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:37:52,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:37:52,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@642abd3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52, skipping insertion in model container [2024-11-14 04:37:52,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,502 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:37:52,683 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_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i[917,930] [2024-11-14 04:37:52,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:37:52,762 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:37:52,772 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_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i[917,930] [2024-11-14 04:37:52,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:37:52,822 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:37:52,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52 WrapperNode [2024-11-14 04:37:52,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:37:52,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:37:52,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:37:52,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:37:52,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,899 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2024-11-14 04:37:52,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:37:52,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:37:52,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:37:52,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:37:52,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,933 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,940 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,945 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:37:52,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:37:52,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:37:52,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:37:52,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:37:52,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:37:53,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:37:53,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:37:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:37:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:37:53,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:37:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:37:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:37:53,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:37:53,138 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:37:53,140 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:37:53,428 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-14 04:37:53,428 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:37:53,574 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:37:53,574 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:37:53,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:37:53 BoogieIcfgContainer [2024-11-14 04:37:53,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:37:53,578 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:37:53,578 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:37:53,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:37:53,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:37:52" (1/3) ... [2024-11-14 04:37:53,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a53bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:37:53, skipping insertion in model container [2024-11-14 04:37:53,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52" (2/3) ... [2024-11-14 04:37:53,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a53bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:37:53, skipping insertion in model container [2024-11-14 04:37:53,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:37:53" (3/3) ... [2024-11-14 04:37:53,589 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-21.i [2024-11-14 04:37:53,607 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:37:53,609 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-21.i that has 2 procedures, 22 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:37:53,678 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:37:53,692 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;@399cc61f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:37:53,693 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:37:53,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:37:53,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-14 04:37:53,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:37:53,706 INFO L215 NwaCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:37:53,707 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:37:53,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:37:53,712 INFO L85 PathProgramCache]: Analyzing trace with hash 320731920, now seen corresponding path program 1 times [2024-11-14 04:37:53,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:37:53,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639140079] [2024-11-14 04:37:53,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:53,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:37:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:37:53,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713066534] [2024-11-14 04:37:53,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:37:53,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:37:53,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:37:53,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:37:53,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:37:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:37:54,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:37:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:37:54,264 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:37:54,268 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:37:54,270 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:37:54,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:37:54,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:37:54,480 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:37:54,521 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:37:54,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:37:54 BoogieIcfgContainer [2024-11-14 04:37:54,524 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:37:54,526 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:37:54,526 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:37:54,526 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:37:54,527 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:37:53" (3/4) ... [2024-11-14 04:37:54,529 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:37:54,530 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:37:54,534 INFO L158 Benchmark]: Toolchain (without parser) took 2059.74ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 108.3MB in the end (delta: 10.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-11-14 04:37:54,534 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:37:54,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.90ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 106.5MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:37:54,535 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.19ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 104.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:37:54,538 INFO L158 Benchmark]: Boogie Preprocessor took 48.78ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 103.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:37:54,539 INFO L158 Benchmark]: RCFGBuilder took 620.99ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 82.1MB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:37:54,539 INFO L158 Benchmark]: TraceAbstraction took 946.31ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 108.3MB in the end (delta: -26.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:37:54,539 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 108.3MB in the end (delta: 21.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:37:54,544 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.90ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 106.5MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.19ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 104.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.78ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 103.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 620.99ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 82.1MB in the end (delta: 21.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 946.31ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 108.3MB in the end (delta: -26.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 108.3MB in the end (delta: 21.0kB). 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 71, overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 46, overapproximation of someBinaryDOUBLEComparisonOperation at line 62, overapproximation of someBinaryDOUBLEComparisonOperation at line 66, overapproximation of someBinaryDOUBLEComparisonOperation at line 64. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 32; [L23] unsigned char var_1_7 = 0; [L24] double var_1_8 = 15.6; [L25] double var_1_9 = 15.4; [L26] double var_1_10 = 32.2; [L27] unsigned char var_1_12 = 1; [L28] signed short int var_1_13 = 256; [L29] float var_1_14 = 5.75; [L30] float var_1_15 = 8.6; [L31] unsigned char last_1_var_1_7 = 0; [L32] signed short int last_1_var_1_13 = 256; [L84] isInitial = 1 [L85] FCALL initially() [L86] COND TRUE 1 [L87] CALL updateLastVariables() [L76] last_1_var_1_7 = var_1_7 [L77] last_1_var_1_13 = var_1_13 [L87] RET updateLastVariables() [L88] CALL updateVariables() [L61] var_1_8 = __VERIFIER_nondet_double() [L62] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=77/5] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=77/5] [L63] var_1_9 = __VERIFIER_nondet_double() [L64] 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_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) [L64] 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_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L65] var_1_10 = __VERIFIER_nondet_double() [L66] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L67] var_1_12 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_12 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=-255, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_12 >= 1) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=-255, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L69] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=-255, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=-255, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0] [L70] var_1_14 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=-255, var_1_13=256, var_1_15=43/5, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=-255, var_1_13=256, var_1_15=43/5, var_1_1=32, var_1_7=0] [L72] var_1_15 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=-255, var_1_13=256, var_1_1=32, var_1_7=0] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=-255, var_1_13=256, var_1_1=32, var_1_7=0] [L88] RET updateVariables() [L89] CALL step() [L36] COND TRUE (last_1_var_1_13 + ((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))) < (last_1_var_1_13 * last_1_var_1_13) [L37] COND FALSE !(last_1_var_1_13 < (last_1_var_1_13 - last_1_var_1_13)) [L45] COND TRUE \read(var_1_12) [L46] COND TRUE (var_1_14 - var_1_15) >= ((var_1_8 + var_1_10) + var_1_9) [L47] var_1_13 = ((((var_1_1) > (var_1_1)) ? (var_1_1) : (var_1_1))) [L52] COND TRUE ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))) <= var_1_10 [L53] COND FALSE !(last_1_var_1_7 && (var_1_1 >= var_1_1)) [L89] RET step() [L90] CALL, EXPR property() [L80-L81] return ((((last_1_var_1_13 + ((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))) < (last_1_var_1_13 * last_1_var_1_13)) ? ((last_1_var_1_13 < (last_1_var_1_13 - last_1_var_1_13)) ? ((last_1_var_1_13 != (((((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) < 0 ) ? -((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) : ((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))))) ? (var_1_1 == ((unsigned short int) last_1_var_1_13)) : 1) : 1) : (var_1_1 == ((unsigned short int) last_1_var_1_13))) && ((((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))) <= var_1_10) ? ((last_1_var_1_7 && (var_1_1 >= var_1_1)) ? (var_1_7 == ((unsigned char) 0)) : 1) : (var_1_7 == ((unsigned char) var_1_12)))) && (var_1_12 ? (((var_1_14 - var_1_15) >= ((var_1_8 + var_1_10) + var_1_9)) ? (var_1_13 == ((signed short int) ((((var_1_1) > (var_1_1)) ? (var_1_1) : (var_1_1))))) : (var_1_13 == ((signed short int) var_1_1))) : 1) ; [L90] RET, EXPR property() [L90] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=-255, var_1_13=32, var_1_1=32, var_1_7=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_12=-255, var_1_13=32, var_1_1=32, var_1_7=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 7, 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=22occurred 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, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 2 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 [2024-11-14 04:37:54,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E --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 4557fd955b08b5fada9f3a6efa621afd9324a377fdc4d7b9e90703dc668aa740 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:37:57,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:37:57,737 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 04:37:57,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:37:57,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:37:57,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:37:57,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:37:57,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:37:57,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:37:57,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:37:57,801 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:37:57,801 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:37:57,802 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:37:57,802 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:37:57,802 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:37:57,802 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:37:57,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:37:57,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:37:57,803 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:37:57,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:37:57,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:37:57,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:37:57,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:37:57,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:37:57,804 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:37:57,804 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:37:57,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:37:57,804 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:37:57,805 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:37:57,805 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:37:57,805 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:37:57,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:37:57,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:37:57,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:37:57,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:37:57,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:37:57,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:37:57,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:37:57,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:37:57,807 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:37:57,807 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:37:57,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:37:57,808 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:37:57,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E 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 -> 4557fd955b08b5fada9f3a6efa621afd9324a377fdc4d7b9e90703dc668aa740 [2024-11-14 04:37:58,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:37:58,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:37:58,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:37:58,219 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:37:58,219 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:37:58,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i Unable to find full path for "g++" [2024-11-14 04:38:00,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:38:00,747 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:38:00,751 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i [2024-11-14 04:38:00,766 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/data/2b95e563c/91f4ebed00f64ce5a5a4dfb350c4d31b/FLAG5b671b928 [2024-11-14 04:38:01,013 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/data/2b95e563c/91f4ebed00f64ce5a5a4dfb350c4d31b [2024-11-14 04:38:01,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:38:01,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:38:01,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:38:01,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:38:01,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:38:01,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16cedf4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01, skipping insertion in model container [2024-11-14 04:38:01,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,051 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:38:01,237 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i[917,930] [2024-11-14 04:38:01,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:38:01,312 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:38:01,326 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_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-21.i[917,930] [2024-11-14 04:38:01,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:38:01,379 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:38:01,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01 WrapperNode [2024-11-14 04:38:01,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:38:01,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:38:01,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:38:01,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:38:01,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,447 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 84 [2024-11-14 04:38:01,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:38:01,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:38:01,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:38:01,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:38:01,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:38:01,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:38:01,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:38:01,501 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:38:01,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (1/1) ... [2024-11-14 04:38:01,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:38:01,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:38:01,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:38:01,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:38:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:38:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:38:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:38:01,573 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:38:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:38:01,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:38:01,670 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:38:01,674 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:38:08,205 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-14 04:38:08,205 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:38:08,218 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:38:08,218 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:38:08,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:38:08 BoogieIcfgContainer [2024-11-14 04:38:08,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:38:08,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:38:08,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:38:08,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:38:08,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:38:01" (1/3) ... [2024-11-14 04:38:08,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e64c273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:38:08, skipping insertion in model container [2024-11-14 04:38:08,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:01" (2/3) ... [2024-11-14 04:38:08,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e64c273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:38:08, skipping insertion in model container [2024-11-14 04:38:08,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:38:08" (3/3) ... [2024-11-14 04:38:08,233 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-21.i [2024-11-14 04:38:08,251 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:38:08,253 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-21.i that has 2 procedures, 39 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:38:08,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:38:08,358 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;@37176a4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:38:08,360 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:38:08,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 04:38:08,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 04:38:08,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:38:08,379 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2024-11-14 04:38:08,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:38:08,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:38:08,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2007027811, now seen corresponding path program 1 times [2024-11-14 04:38:08,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:38:08,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465289686] [2024-11-14 04:38:08,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:08,408 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 [2024-11-14 04:38:08,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:38:08,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:38:08,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:38:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:08,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:38:08,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:38:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:38:09,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:38:09,236 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:38:09,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465289686] [2024-11-14 04:38:09,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465289686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:38:09,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:38:09,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:38:09,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348183869] [2024-11-14 04:38:09,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:38:09,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:38:09,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:38:09,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:38:09,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:38:09,270 INFO L87 Difference]: Start difference. First operand has 39 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 04:38:11,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:38:13,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:38:15,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:38:17,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:38:19,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:38:21,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:38:21,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:38:21,468 INFO L93 Difference]: Finished difference Result 111 states and 179 transitions. [2024-11-14 04:38:21,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:38:21,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 53 [2024-11-14 04:38:21,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:38:21,499 INFO L225 Difference]: With dead ends: 111 [2024-11-14 04:38:21,499 INFO L226 Difference]: Without dead ends: 75 [2024-11-14 04:38:21,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:38:21,506 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 53 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 16 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:38:21,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 122 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 14 Invalid, 4 Unknown, 0 Unchecked, 12.1s Time] [2024-11-14 04:38:21,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-14 04:38:21,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2024-11-14 04:38:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 04:38:21,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2024-11-14 04:38:21,558 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 53 [2024-11-14 04:38:21,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:38:21,559 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2024-11-14 04:38:21,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 04:38:21,560 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2024-11-14 04:38:21,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 04:38:21,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:38:21,563 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2024-11-14 04:38:21,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-14 04:38:21,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:38:21,764 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:38:21,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:38:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1609300843, now seen corresponding path program 1 times [2024-11-14 04:38:21,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:38:21,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84392822] [2024-11-14 04:38:21,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:21,768 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 [2024-11-14 04:38:21,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:38:21,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:38:21,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:38:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:21,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:38:21,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:38:22,268 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-14 04:38:22,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:38:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-14 04:38:22,678 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:38:22,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84392822] [2024-11-14 04:38:22,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84392822] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:38:22,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [346807077] [2024-11-14 04:38:22,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:22,679 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:38:22,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:38:22,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:38:22,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 04:38:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:23,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 04:38:23,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:44:18,040 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_property_#res#1| (_ bv1 32)))) (or (and .cse0 (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (not (fp.leq ~var_1_8~0 ~var_1_10~0)) (not (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0))) (fp.lt ~var_1_8~0 ~var_1_9~0)))) (and .cse0 (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (not (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0))) (not (fp.leq ~var_1_9~0 ~var_1_10~0)) (not (fp.lt ~var_1_8~0 ~var_1_9~0))))) (and .cse0 (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0)) (not (fp.leq ~var_1_9~0 ~var_1_10~0)) (not (fp.lt ~var_1_8~0 ~var_1_9~0))))) (and (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0)) (not (fp.leq ~var_1_8~0 ~var_1_10~0)) (fp.lt ~var_1_8~0 ~var_1_9~0))) .cse0))) is different from false [2024-11-14 04:45:15,788 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)))) (or (and (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (not (fp.leq ~var_1_8~0 ~var_1_10~0)) (not (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0))) (fp.lt ~var_1_8~0 ~var_1_9~0))) .cse0) (and (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0)) (not (fp.leq ~var_1_8~0 ~var_1_10~0)) (fp.lt ~var_1_8~0 ~var_1_9~0))) .cse0) (and (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0)) (not (fp.leq ~var_1_9~0 ~var_1_10~0)) (not (fp.lt ~var_1_8~0 ~var_1_9~0)))) .cse0) (and (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (not (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0))) (not (fp.leq ~var_1_9~0 ~var_1_10~0)) (not (fp.lt ~var_1_8~0 ~var_1_9~0)))) .cse0))) is different from false [2024-11-14 04:45:15,803 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 04:45:15,804 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:45:15,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [346807077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:45:15,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 04:45:15,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5] total 13 [2024-11-14 04:45:15,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343932687] [2024-11-14 04:45:15,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:45:15,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:45:15,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:45:15,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:45:15,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=81, Unknown=2, NotChecked=38, Total=156 [2024-11-14 04:45:15,810 INFO L87 Difference]: Start difference. First operand 63 states and 86 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 04:45:18,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:45:20,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:45:22,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:45:25,024 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 16) c_~last_1_var_1_13~0))) (and (= (_ bv0 8) c_~var_1_7~0) (not (bvslt .cse0 (bvadd .cse0 (bvneg .cse0)))) (let ((.cse1 (= |c_ULTIMATE.start_property_#res#1| (_ bv1 32)))) (or (and .cse1 (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (not (fp.leq ~var_1_8~0 ~var_1_10~0)) (not (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0))) (fp.lt ~var_1_8~0 ~var_1_9~0)))) (and .cse1 (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (not (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0))) (not (fp.leq ~var_1_9~0 ~var_1_10~0)) (not (fp.lt ~var_1_8~0 ~var_1_9~0))))) (and .cse1 (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0)) (not (fp.leq ~var_1_9~0 ~var_1_10~0)) (not (fp.lt ~var_1_8~0 ~var_1_9~0))))) (and (exists ((~var_1_10~0 (_ FloatingPoint 11 53)) (~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode) (~var_1_9~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (fp.geq ((_ to_fp 11 53) currentRoundingMode (fp.sub currentRoundingMode ~var_1_14~0 ~var_1_15~0)) (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_8~0 ~var_1_10~0) ~var_1_9~0)) (not (fp.leq ~var_1_8~0 ~var_1_10~0)) (fp.lt ~var_1_8~0 ~var_1_9~0))) .cse1))) (bvslt (bvmul .cse0 (_ bv2 32)) (bvmul .cse0 .cse0)) (= (_ bv0 8) c_~var_1_12~0) (or (not (fp.leq c_~var_1_8~0 c_~var_1_10~0)) (not (fp.lt c_~var_1_8~0 c_~var_1_9~0))) (not (fp.leq c_~var_1_9~0 c_~var_1_10~0)))) is different from false [2024-11-14 04:45:27,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:45:29,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:45:32,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:45:34,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-14 04:45:34,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:45:34,528 INFO L93 Difference]: Finished difference Result 105 states and 139 transitions. [2024-11-14 04:45:34,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:45:34,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 54 [2024-11-14 04:45:34,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:45:34,560 INFO L225 Difference]: With dead ends: 105 [2024-11-14 04:45:34,560 INFO L226 Difference]: Without dead ends: 103 [2024-11-14 04:45:34,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=37, Invalid=82, Unknown=3, NotChecked=60, Total=182 [2024-11-14 04:45:34,562 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 44 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 114 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:45:34,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 255 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 6 Unknown, 114 Unchecked, 16.5s Time] [2024-11-14 04:45:34,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-14 04:45:34,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 71. [2024-11-14 04:45:34,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 54 states have (on average 1.2592592592592593) internal successors, (68), 54 states have internal predecessors, (68), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 04:45:34,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 96 transitions. [2024-11-14 04:45:34,578 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 96 transitions. Word has length 54 [2024-11-14 04:45:34,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:45:34,578 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 96 transitions. [2024-11-14 04:45:34,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-14 04:45:34,579 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 96 transitions. [2024-11-14 04:45:34,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 04:45:34,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:45:34,581 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2024-11-14 04:45:34,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-14 04:45:34,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 04:45:34,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:45:34,982 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:45:34,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:45:34,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1642385791, now seen corresponding path program 1 times [2024-11-14 04:45:34,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:45:34,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24718740] [2024-11-14 04:45:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:45:34,984 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 [2024-11-14 04:45:34,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:45:34,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:45:34,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1e9cbc6-c4c0-4923-a102-facc399f6dd6/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 04:45:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:45:35,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 04:45:35,339 INFO L278 TraceCheckSpWp]: Computing forward predicates...