./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-62.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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-62.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 6fce1457242a9805f1dea2d31ffb0214a33eeb8d294031dc95b23932416bce93 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:41:35,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:41:36,072 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:41:36,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:41:36,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:41:36,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:41:36,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:41:36,131 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:41:36,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:41:36,132 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:41:36,132 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:41:36,132 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:41:36,132 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:41:36,133 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:41:36,133 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:41:36,133 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:41:36,134 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:41:36,135 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:41:36,136 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:41:36,136 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:41:36,136 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:41:36,136 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:41:36,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:41:36,137 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:41:36,137 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:41:36,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:41:36,137 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:41:36,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:41:36,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:41:36,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:41:36,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:41:36,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:41:36,138 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:41:36,138 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:41:36,138 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:41:36,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:41:36,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:41:36,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:41:36,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:41:36,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:41:36,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:41:36,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:41:36,139 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:41:36,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:41:36,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:41:36,139 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:41:36,139 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:41:36,139 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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 -> 6fce1457242a9805f1dea2d31ffb0214a33eeb8d294031dc95b23932416bce93 [2024-11-14 05:41:36,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:41:36,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:41:36,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:41:36,546 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:41:36,546 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:41:36,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-62.i Unable to find full path for "g++" [2024-11-14 05:41:39,029 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:41:39,316 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:41:39,318 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-62.i [2024-11-14 05:41:39,328 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/data/b914aa430/b841733c0032433db53d447eefafacf8/FLAG34457bf75 [2024-11-14 05:41:39,346 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/data/b914aa430/b841733c0032433db53d447eefafacf8 [2024-11-14 05:41:39,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:41:39,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:41:39,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:41:39,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:41:39,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:41:39,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc0c267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39, skipping insertion in model container [2024-11-14 05:41:39,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,381 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:41:39,588 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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-62.i[915,928] [2024-11-14 05:41:39,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:41:39,675 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:41:39,691 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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-62.i[915,928] [2024-11-14 05:41:39,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:41:39,770 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:41:39,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39 WrapperNode [2024-11-14 05:41:39,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:41:39,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:41:39,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:41:39,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:41:39,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,836 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2024-11-14 05:41:39,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:41:39,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:41:39,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:41:39,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:41:39,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,865 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,878 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:41:39,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:41:39,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:41:39,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:41:39,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (1/1) ... [2024-11-14 05:41:39,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:41:39,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:41:39,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:41:39,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:41:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:41:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:41:39,967 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:41:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:41:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:41:39,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:41:40,073 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:41:40,076 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:41:40,351 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-14 05:41:40,351 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:41:40,509 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:41:40,514 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:41:40,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:41:40 BoogieIcfgContainer [2024-11-14 05:41:40,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:41:40,517 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:41:40,517 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:41:40,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:41:40,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:41:39" (1/3) ... [2024-11-14 05:41:40,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f73db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:41:40, skipping insertion in model container [2024-11-14 05:41:40,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:39" (2/3) ... [2024-11-14 05:41:40,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69f73db5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:41:40, skipping insertion in model container [2024-11-14 05:41:40,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:41:40" (3/3) ... [2024-11-14 05:41:40,529 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-62.i [2024-11-14 05:41:40,548 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:41:40,550 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-62.i that has 2 procedures, 32 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:41:40,610 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:41:40,624 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;@42f60d3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:41:40,624 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:41:40,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:41:40,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-14 05:41:40,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:40,637 INFO L215 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:41:40,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:41:40,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:40,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1144548839, now seen corresponding path program 1 times [2024-11-14 05:41:40,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:41:40,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321613027] [2024-11-14 05:41:40,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:40,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:41:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:41:40,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:41:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:41:41,110 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:41:41,113 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:41:41,114 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:41:41,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:41:41,124 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:41:41,186 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:41:41,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:41:41 BoogieIcfgContainer [2024-11-14 05:41:41,193 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:41:41,194 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:41:41,194 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:41:41,194 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:41:41,195 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:41:40" (3/4) ... [2024-11-14 05:41:41,199 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:41:41,200 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:41:41,202 INFO L158 Benchmark]: Toolchain (without parser) took 1847.88ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 83.0MB in the end (delta: 8.5MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2024-11-14 05:41:41,202 INFO L158 Benchmark]: CDTParser took 1.14ms. Allocated memory is still 83.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:41:41,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.42ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:41:41,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.52ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:41:41,203 INFO L158 Benchmark]: Boogie Preprocessor took 45.13ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 76.4MB in the end (delta: 994.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:41:41,203 INFO L158 Benchmark]: RCFGBuilder took 631.69ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 57.6MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:41:41,204 INFO L158 Benchmark]: TraceAbstraction took 676.00ms. Allocated memory is still 117.4MB. Free memory was 57.1MB in the beginning and 83.0MB in the end (delta: -25.9MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2024-11-14 05:41:41,204 INFO L158 Benchmark]: Witness Printer took 6.58ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 83.0MB in the end (delta: 14.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:41:41,210 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14ms. Allocated memory is still 83.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.42ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.52ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.13ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 76.4MB in the end (delta: 994.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 631.69ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 57.6MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 676.00ms. Allocated memory is still 117.4MB. Free memory was 57.1MB in the beginning and 83.0MB in the end (delta: -25.9MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Witness Printer took 6.58ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 83.0MB in the end (delta: 14.1kB). 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 78, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 53, overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = -128; [L24] unsigned char var_1_3 = 1; [L25] signed char var_1_4 = -5; [L26] unsigned char var_1_5 = 16; [L27] unsigned char var_1_9 = 25; [L28] float var_1_10 = 2.5; [L29] signed char var_1_11 = 1; [L30] signed char var_1_12 = 4; [L31] float var_1_13 = 7.75; [L32] float var_1_14 = 64.75; [L33] float var_1_15 = 256.52; [L34] float var_1_16 = 3.25; [L91] isInitial = 1 [L92] FCALL initially() [L93] COND TRUE 1 [L94] FCALL updateLastVariables() [L95] CALL updateVariables() [L60] var_1_3 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_4=-5, var_1_5=16, var_1_9=25] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_4=-5, var_1_5=16, var_1_9=25] [L62] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=-5, var_1_5=16, var_1_9=25] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=-5, var_1_5=16, var_1_9=25] [L63] var_1_4 = __VERIFIER_nondet_char() [L64] CALL assume_abort_if_not(var_1_4 >= -126) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=25] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_4 >= -126) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=25] [L65] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=25] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=25] [L66] var_1_9 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16] [L68] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, var_1_10=5/2, var_1_11=1, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L69] var_1_11 = __VERIFIER_nondet_char() [L70] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L71] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=4, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L72] var_1_12 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L74] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_13=31/4, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L75] var_1_13 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_13 >= -230584.3009213691390e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 2305843.009213691390e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((var_1_13 >= -230584.3009213691390e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 2305843.009213691390e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_14=259/4, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L77] var_1_14 = __VERIFIER_nondet_float() [L78] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_15=6413/25, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L79] var_1_15 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_16=13/4, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L81] var_1_16 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5/2, var_1_11=63, var_1_12=0, var_1_1=32, var_1_2=-128, var_1_3=0, var_1_4=126, var_1_5=16, var_1_9=254] [L95] RET updateVariables() [L96] CALL step() [L38] var_1_1 = (16 - 2) [L39] COND FALSE !(\read(var_1_3)) [L42] var_1_2 = ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) [L44] COND FALSE !(var_1_4 < ((16 + var_1_11) - var_1_12)) [L51] var_1_10 = var_1_14 [L53] COND FALSE !((var_1_10 * var_1_10) > var_1_10) [L56] var_1_5 = var_1_9 [L96] RET step() [L97] CALL, EXPR property() [L87-L88] return (((var_1_1 == ((signed char) (16 - 2))) && (var_1_3 ? (var_1_2 == ((signed char) ((((-4) < 0 ) ? -(-4) : (-4))))) : (var_1_2 == ((signed char) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))))) && (((var_1_10 * var_1_10) > var_1_10) ? (var_1_5 == ((unsigned char) (((((25) < (5)) ? (25) : (5))) + 10))) : (var_1_5 == ((unsigned char) var_1_9)))) && ((var_1_4 < ((16 + var_1_11) - var_1_12)) ? (var_1_3 ? (var_1_10 == ((float) ((var_1_13 + 50.6f) + var_1_14))) : (var_1_10 == ((float) (var_1_15 - var_1_16)))) : (var_1_10 == ((float) var_1_14))) ; [L97] RET, EXPR property() [L97] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=261, var_1_11=63, var_1_12=0, var_1_14=261, var_1_1=14, var_1_2=126, var_1_3=0, var_1_4=126, var_1_5=254, var_1_9=254] [L19] reach_error() VAL [isInitial=1, var_1_10=261, var_1_11=63, var_1_12=0, var_1_14=261, var_1_1=14, var_1_2=126, var_1_3=0, var_1_4=126, var_1_5=254, var_1_9=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 14, 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=32occurred 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, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 05:41:41,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-62.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 6fce1457242a9805f1dea2d31ffb0214a33eeb8d294031dc95b23932416bce93 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:41:44,552 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:41:44,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:41:44,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:41:44,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:41:44,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:41:44,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:41:44,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:41:44,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:41:44,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:41:44,775 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:41:44,775 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:41:44,775 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:41:44,775 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:41:44,775 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:41:44,776 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:41:44,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:41:44,776 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:41:44,776 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:41:44,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:41:44,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:41:44,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:41:44,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:41:44,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:41:44,777 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:41:44,777 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:41:44,777 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:41:44,777 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:41:44,777 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:41:44,778 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:41:44,778 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:41:44,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:41:44,779 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:41:44,779 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:41:44,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:41:44,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:41:44,780 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:41:44,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:41:44,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:41:44,781 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:41:44,781 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:41:44,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:41:44,781 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:41:44,781 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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 -> 6fce1457242a9805f1dea2d31ffb0214a33eeb8d294031dc95b23932416bce93 [2024-11-14 05:41:45,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:41:45,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:41:45,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:41:45,217 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:41:45,218 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:41:45,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-62.i Unable to find full path for "g++" [2024-11-14 05:41:47,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:41:47,860 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:41:47,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-62.i [2024-11-14 05:41:47,882 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/data/9586520f4/07805237ac344323af71471692941dcd/FLAG2aacac7d2 [2024-11-14 05:41:47,915 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/data/9586520f4/07805237ac344323af71471692941dcd [2024-11-14 05:41:47,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:41:47,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:41:47,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:41:47,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:41:47,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:41:47,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:41:47" (1/1) ... [2024-11-14 05:41:47,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30117c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:47, skipping insertion in model container [2024-11-14 05:41:47,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:41:47" (1/1) ... [2024-11-14 05:41:47,957 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:41:48,170 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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-62.i[915,928] [2024-11-14 05:41:48,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:41:48,277 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:41:48,294 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_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-62.i[915,928] [2024-11-14 05:41:48,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:41:48,338 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:41:48,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48 WrapperNode [2024-11-14 05:41:48,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:41:48,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:41:48,340 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:41:48,340 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:41:48,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (1/1) ... [2024-11-14 05:41:48,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (1/1) ... [2024-11-14 05:41:48,385 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 99 [2024-11-14 05:41:48,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:41:48,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:41:48,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:41:48,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:41:48,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (1/1) ... [2024-11-14 05:41:48,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (1/1) ... [2024-11-14 05:41:48,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (1/1) ... [2024-11-14 05:41:48,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (1/1) ... [2024-11-14 05:41:48,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (1/1) ... [2024-11-14 05:41:48,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (1/1) ... [2024-11-14 05:41:48,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (1/1) ... [2024-11-14 05:41:48,442 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (1/1) ... [2024-11-14 05:41:48,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:41:48,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:41:48,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:41:48,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:41:48,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (1/1) ... [2024-11-14 05:41:48,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:41:48,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:41:48,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:41:48,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:41:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:41:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:41:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:41:48,525 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:41:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:41:48,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:41:48,633 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:41:48,636 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:41:50,491 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-14 05:41:50,491 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:41:50,503 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:41:50,504 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:41:50,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:41:50 BoogieIcfgContainer [2024-11-14 05:41:50,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:41:50,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:41:50,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:41:50,514 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:41:50,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:41:47" (1/3) ... [2024-11-14 05:41:50,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc85fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:41:50, skipping insertion in model container [2024-11-14 05:41:50,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:41:48" (2/3) ... [2024-11-14 05:41:50,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc85fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:41:50, skipping insertion in model container [2024-11-14 05:41:50,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:41:50" (3/3) ... [2024-11-14 05:41:50,518 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-62.i [2024-11-14 05:41:50,537 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:41:50,539 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-62.i that has 2 procedures, 46 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:41:50,609 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:41:50,622 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;@117dc05e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:41:50,623 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:41:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:41:50,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 05:41:50,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:50,640 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:41:50,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:41:50,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:50,646 INFO L85 PathProgramCache]: Analyzing trace with hash 2098123540, now seen corresponding path program 1 times [2024-11-14 05:41:50,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:41:50,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461921102] [2024-11-14 05:41:50,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:50,660 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 05:41:50,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:41:50,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 05:41:50,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 05:41:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:41:51,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:41:51,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:41:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-14 05:41:51,073 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:41:51,074 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:41:51,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461921102] [2024-11-14 05:41:51,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [461921102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:41:51,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:41:51,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:41:51,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200813482] [2024-11-14 05:41:51,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:41:51,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:41:51,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:41:51,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:41:51,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:41:51,104 INFO L87 Difference]: Start difference. First operand has 46 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 05:41:51,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:41:51,134 INFO L93 Difference]: Finished difference Result 85 states and 140 transitions. [2024-11-14 05:41:51,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:41:51,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 91 [2024-11-14 05:41:51,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:41:51,143 INFO L225 Difference]: With dead ends: 85 [2024-11-14 05:41:51,143 INFO L226 Difference]: Without dead ends: 42 [2024-11-14 05:41:51,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:41:51,149 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:41:51,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:41:51,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-14 05:41:51,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-14 05:41:51,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 05:41:51,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2024-11-14 05:41:51,201 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 59 transitions. Word has length 91 [2024-11-14 05:41:51,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:41:51,202 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 59 transitions. [2024-11-14 05:41:51,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 05:41:51,203 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 59 transitions. [2024-11-14 05:41:51,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 05:41:51,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:51,206 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:41:51,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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)] Ended with exit code 0 [2024-11-14 05:41:51,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 05:41:51,407 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:41:51,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:51,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2114642268, now seen corresponding path program 1 times [2024-11-14 05:41:51,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:41:51,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114852206] [2024-11-14 05:41:51,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:51,410 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 05:41:51,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:41:51,412 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 05:41:51,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 05:41:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:41:51,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 05:41:51,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:43:17,056 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-14 05:43:17,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:45:13,266 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse43 ((_ sign_extend 24) c_~var_1_2~0)) (.cse45 ((_ sign_extend 24) c_~var_1_4~0))) (let ((.cse11 (bvslt .cse45 (_ bv0 32))) (.cse15 (= (_ bv4 32) .cse43)) (.cse35 ((_ zero_extend 24) c_~var_1_5~0)) (.cse42 ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse45)))) (.cse36 ((_ sign_extend 24) ((_ extract 7 0) .cse45))) (.cse4 (= c_~var_1_3~0 (_ bv0 8))) (.cse44 ((_ to_fp 8 24) c_currentRoundingMode (/ 253.0 5.0))) (.cse23 (bvslt .cse45 (bvadd (bvneg ((_ sign_extend 24) c_~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) c_~var_1_11~0))))) (let ((.cse1 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0))))) (.cse26 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0)))) (.cse2 (= (_ bv14 32) ((_ sign_extend 24) c_~var_1_1~0))) (.cse22 (not .cse23)) (.cse6 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse44) c_~var_1_14~0)))) (.cse7 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse44) c_~var_1_14~0))))) (.cse10 (not .cse4)) (.cse12 (= .cse43 .cse36)) (.cse32 (fp.eq c_~var_1_10~0 c_~var_1_14~0)) (.cse20 (= .cse43 .cse42)) (.cse34 (= (_ bv15 32) .cse35)) (.cse17 (not .cse15)) (.cse19 (= (_ bv4 32) .cse42)) (.cse21 (not .cse11)) (.cse0 (fp.gt (fp.mul c_currentRoundingMode c_~var_1_10~0 c_~var_1_10~0) c_~var_1_10~0))) (and (or .cse0 (let ((.cse18 (= (_ bv4 32) .cse36)) (.cse33 (forall ((~var_1_9~0 (_ BitVec 8))) (= ((_ zero_extend 24) ~var_1_9~0) .cse35)))) (let ((.cse13 (or .cse32 .cse33)) (.cse14 (or (not .cse32) .cse33)) (.cse30 (not .cse18)) (.cse29 (not .cse19)) (.cse16 (not .cse34))) (let ((.cse27 (and (or .cse4 (let ((.cse31 (and .cse32 .cse33))) (and (or (and .cse16 (or .cse31 .cse30) (or .cse18 .cse31) .cse15) .cse11) (or (and .cse16 .cse15 (or .cse31 .cse19) (or .cse31 .cse29)) .cse21)))) (or .cse10 (and (or .cse11 (and .cse16 (or (and .cse32 .cse12 .cse33) .cse15) (or .cse17 (and .cse32 .cse33 .cse18)))) (or (and (or .cse17 (and .cse32 .cse33 .cse19)) .cse16 (or (and .cse32 .cse20 .cse33) .cse15)) .cse21))))) (.cse28 (and .cse13 .cse14))) (let ((.cse8 (or .cse11 (and (or .cse18 .cse28) .cse16 (or .cse28 .cse30) .cse15))) (.cse9 (or (and (or .cse28 .cse19) (or .cse28 .cse29) .cse16 .cse15) .cse21)) (.cse24 (or .cse27 .cse7)) (.cse25 (or .cse27 .cse6))) (and (or .cse1 (and .cse2 (or (let ((.cse3 (or (and .cse16 (or .cse17 (and .cse13 .cse14 .cse19)) (or (and .cse20 .cse13 .cse14) .cse15)) .cse21)) (.cse5 (or .cse11 (and (or (and .cse12 .cse13 .cse14) .cse15) .cse16 (or .cse17 (and .cse13 .cse18 .cse14)))))) (and (or (and .cse3 .cse4 .cse5) .cse6) (or .cse7 (and (or (and .cse8 .cse9) .cse4) (or .cse10 (and .cse3 .cse5)))))) .cse22) (or .cse23 (and .cse24 .cse25)))) (or (and (or (and .cse8 .cse2 .cse10 .cse6 .cse9) .cse22) (or .cse23 (and .cse24 .cse2 .cse25))) .cse26))))))) (or (let ((.cse41 (and (or .cse4 (and .cse32 .cse34 .cse15)) (or .cse10 (and (or .cse11 (and .cse32 .cse34 .cse12)) (or (and .cse32 .cse20 .cse34 (or .cse17 .cse19)) .cse21)))))) (let ((.cse39 (or .cse41 .cse7)) (.cse40 (or .cse41 .cse6))) (and (or (and (or (let ((.cse37 (or .cse11 (and .cse34 .cse12))) (.cse38 (or (and .cse20 .cse34) .cse21))) (and (or (and .cse37 .cse4 .cse38) .cse6) (or .cse7 (and (or (and .cse37 .cse38) .cse10) (or .cse4 (and .cse34 .cse15)))))) .cse22) .cse2 (or .cse23 (and .cse39 .cse40))) .cse1) (or .cse26 (and (or .cse23 (and .cse2 .cse39 .cse40)) (or (and .cse34 .cse2 .cse10 .cse15 .cse6) .cse22)))))) (not .cse0)))))) is different from false [2024-11-14 05:45:15,295 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse43 ((_ sign_extend 24) c_~var_1_2~0)) (.cse45 ((_ sign_extend 24) c_~var_1_4~0))) (let ((.cse11 (bvslt .cse45 (_ bv0 32))) (.cse15 (= (_ bv4 32) .cse43)) (.cse35 ((_ zero_extend 24) c_~var_1_5~0)) (.cse42 ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse45)))) (.cse36 ((_ sign_extend 24) ((_ extract 7 0) .cse45))) (.cse4 (= c_~var_1_3~0 (_ bv0 8))) (.cse44 ((_ to_fp 8 24) c_currentRoundingMode (/ 253.0 5.0))) (.cse23 (bvslt .cse45 (bvadd (bvneg ((_ sign_extend 24) c_~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) c_~var_1_11~0))))) (let ((.cse1 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0))))) (.cse26 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0)))) (.cse2 (= (_ bv14 32) ((_ sign_extend 24) c_~var_1_1~0))) (.cse22 (not .cse23)) (.cse6 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse44) c_~var_1_14~0)))) (.cse7 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse44) c_~var_1_14~0))))) (.cse10 (not .cse4)) (.cse12 (= .cse43 .cse36)) (.cse32 (fp.eq c_~var_1_10~0 c_~var_1_14~0)) (.cse20 (= .cse43 .cse42)) (.cse34 (= (_ bv15 32) .cse35)) (.cse17 (not .cse15)) (.cse19 (= (_ bv4 32) .cse42)) (.cse21 (not .cse11)) (.cse0 (fp.gt (fp.mul c_currentRoundingMode c_~var_1_10~0 c_~var_1_10~0) c_~var_1_10~0))) (and (or .cse0 (let ((.cse18 (= (_ bv4 32) .cse36)) (.cse33 (forall ((~var_1_9~0 (_ BitVec 8))) (= ((_ zero_extend 24) ~var_1_9~0) .cse35)))) (let ((.cse13 (or .cse32 .cse33)) (.cse14 (or (not .cse32) .cse33)) (.cse30 (not .cse18)) (.cse29 (not .cse19)) (.cse16 (not .cse34))) (let ((.cse27 (and (or .cse4 (let ((.cse31 (and .cse32 .cse33))) (and (or (and .cse16 (or .cse31 .cse30) (or .cse18 .cse31) .cse15) .cse11) (or (and .cse16 .cse15 (or .cse31 .cse19) (or .cse31 .cse29)) .cse21)))) (or .cse10 (and (or .cse11 (and .cse16 (or (and .cse32 .cse12 .cse33) .cse15) (or .cse17 (and .cse32 .cse33 .cse18)))) (or (and (or .cse17 (and .cse32 .cse33 .cse19)) .cse16 (or (and .cse32 .cse20 .cse33) .cse15)) .cse21))))) (.cse28 (and .cse13 .cse14))) (let ((.cse8 (or .cse11 (and (or .cse18 .cse28) .cse16 (or .cse28 .cse30) .cse15))) (.cse9 (or (and (or .cse28 .cse19) (or .cse28 .cse29) .cse16 .cse15) .cse21)) (.cse24 (or .cse27 .cse7)) (.cse25 (or .cse27 .cse6))) (and (or .cse1 (and .cse2 (or (let ((.cse3 (or (and .cse16 (or .cse17 (and .cse13 .cse14 .cse19)) (or (and .cse20 .cse13 .cse14) .cse15)) .cse21)) (.cse5 (or .cse11 (and (or (and .cse12 .cse13 .cse14) .cse15) .cse16 (or .cse17 (and .cse13 .cse18 .cse14)))))) (and (or (and .cse3 .cse4 .cse5) .cse6) (or .cse7 (and (or (and .cse8 .cse9) .cse4) (or .cse10 (and .cse3 .cse5)))))) .cse22) (or .cse23 (and .cse24 .cse25)))) (or (and (or (and .cse8 .cse2 .cse10 .cse6 .cse9) .cse22) (or .cse23 (and .cse24 .cse2 .cse25))) .cse26))))))) (or (let ((.cse41 (and (or .cse4 (and .cse32 .cse34 .cse15)) (or .cse10 (and (or .cse11 (and .cse32 .cse34 .cse12)) (or (and .cse32 .cse20 .cse34 (or .cse17 .cse19)) .cse21)))))) (let ((.cse39 (or .cse41 .cse7)) (.cse40 (or .cse41 .cse6))) (and (or (and (or (let ((.cse37 (or .cse11 (and .cse34 .cse12))) (.cse38 (or (and .cse20 .cse34) .cse21))) (and (or (and .cse37 .cse4 .cse38) .cse6) (or .cse7 (and (or (and .cse37 .cse38) .cse10) (or .cse4 (and .cse34 .cse15)))))) .cse22) .cse2 (or .cse23 (and .cse39 .cse40))) .cse1) (or .cse26 (and (or .cse23 (and .cse2 .cse39 .cse40)) (or (and .cse34 .cse2 .cse10 .cse15 .cse6) .cse22)))))) (not .cse0)))))) is different from true [2024-11-14 05:45:44,248 WARN L873 $PredicateComparison]: unable to prove that (or (not (fp.gt (fp.mul c_currentRoundingMode c_~var_1_10~0 c_~var_1_10~0) c_~var_1_10~0)) (let ((.cse19 ((_ sign_extend 24) c_~var_1_4~0))) (let ((.cse11 (= c_~var_1_3~0 (_ bv0 8))) (.cse14 (bvslt .cse19 (_ bv0 32))) (.cse20 ((_ sign_extend 24) c_~var_1_2~0))) (let ((.cse3 (= (_ bv4 32) .cse20)) (.cse12 (= .cse20 ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse19))))) (.cse13 (not .cse14)) (.cse15 (= .cse20 ((_ sign_extend 24) ((_ extract 7 0) .cse19)))) (.cse2 (not .cse11)) (.cse18 ((_ to_fp 8 24) c_currentRoundingMode (/ 253.0 5.0)))) (let ((.cse5 (bvslt .cse19 (bvadd (bvneg ((_ sign_extend 24) c_~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) c_~var_1_11~0)))) (.cse4 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse18) c_~var_1_14~0)))) (.cse8 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse18) c_~var_1_14~0))))) (.cse16 (let ((.cse17 (fp.eq c_~var_1_10~0 c_~var_1_14~0))) (and (or .cse11 (and .cse17 .cse3)) (or (and (or (and .cse17 .cse12) .cse13) (or (and .cse17 .cse15) .cse14)) .cse2))))) (let ((.cse6 (or .cse8 .cse16)) (.cse7 (or .cse16 .cse4)) (.cse1 (= (_ bv14 32) ((_ sign_extend 24) c_~var_1_1~0))) (.cse0 (not .cse5))) (and (or (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4)) (or .cse5 (and .cse6 .cse1 .cse7)))) (or (and (or .cse5 (and .cse6 .cse7)) .cse1 (or (let ((.cse9 (or .cse14 .cse15)) (.cse10 (or .cse12 .cse13))) (and (or .cse8 (and (or .cse2 (and .cse9 .cse10)) (or .cse11 .cse3))) (or (and .cse9 .cse11 .cse10) .cse4))) .cse0)) (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0)))))))))))) is different from true [2024-11-14 05:46:06,406 WARN L873 $PredicateComparison]: unable to prove that (or (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 253.0 5.0))) (.cse2 (let ((.cse6 (= c_~var_1_3~0 (_ bv0 8))) (.cse4 ((_ sign_extend 24) c_~var_1_2~0))) (and (or (and (forall ((~var_1_4~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (let ((.cse3 ((_ sign_extend 24) ~var_1_4~0))) (or (bvslt .cse3 (_ bv0 32)) (= ((_ sign_extend 24) ((_ extract 7 0) .cse3)) .cse4) (bvslt .cse3 (bvadd (bvneg ((_ sign_extend 24) ~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) ~var_1_11~0)))))) (forall ((~var_1_4~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (let ((.cse5 ((_ sign_extend 24) ~var_1_4~0))) (or (bvslt .cse5 (bvadd (bvneg ((_ sign_extend 24) ~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) ~var_1_11~0))) (not (bvslt .cse5 (_ bv0 32))) (= .cse4 ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse5)))))))) (not .cse6)) (or .cse6 (= (_ bv4 32) .cse4)))))) (and (or (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse1) c_~var_1_14~0))) .cse2) (or (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse1) c_~var_1_14~0)))) .cse2) (= (_ bv14 32) ((_ sign_extend 24) c_~var_1_1~0)))))) (and (or .cse0 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0)))) (or .cse0 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0))))))) (not (fp.gt (fp.mul c_currentRoundingMode c_~var_1_14~0 c_~var_1_14~0) c_~var_1_14~0))) is different from true [2024-11-14 05:46:19,536 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-14 05:46:19,537 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:46:19,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114852206] [2024-11-14 05:46:19,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114852206] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 05:46:19,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:46:19,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-14 05:46:19,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966097474] [2024-11-14 05:46:19,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:46:19,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:46:19,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:46:19,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:46:19,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=143, Unknown=4, NotChecked=78, Total=272 [2024-11-14 05:46:19,544 INFO L87 Difference]: Start difference. First operand 42 states and 59 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:46:22,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-14 05:46:24,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-14 05:46:26,591 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0)))) (.cse2 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0))))) (.cse0 (= (_ bv14 32) ((_ sign_extend 24) c_~var_1_1~0))) (.cse3 (not (fp.gt (fp.mul c_currentRoundingMode c_~var_1_14~0 c_~var_1_14~0) c_~var_1_14~0)))) (and (or (and (or .cse0 .cse1) (or .cse0 .cse2)) .cse3) (or (let ((.cse4 (let ((.cse5 ((_ to_fp 8 24) c_currentRoundingMode (/ 253.0 5.0))) (.cse6 (let ((.cse10 (= c_~var_1_3~0 (_ bv0 8))) (.cse8 ((_ sign_extend 24) c_~var_1_2~0))) (and (or (and (forall ((~var_1_4~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (let ((.cse7 ((_ sign_extend 24) ~var_1_4~0))) (or (bvslt .cse7 (_ bv0 32)) (= ((_ sign_extend 24) ((_ extract 7 0) .cse7)) .cse8) (bvslt .cse7 (bvadd (bvneg ((_ sign_extend 24) ~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) ~var_1_11~0)))))) (forall ((~var_1_4~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (let ((.cse9 ((_ sign_extend 24) ~var_1_4~0))) (or (bvslt .cse9 (bvadd (bvneg ((_ sign_extend 24) ~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) ~var_1_11~0))) (not (bvslt .cse9 (_ bv0 32))) (= .cse8 ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse9)))))))) (not .cse10)) (or .cse10 (= (_ bv4 32) .cse8)))))) (and (or (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse5) c_~var_1_14~0))) .cse6) (or (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse5) c_~var_1_14~0)))) .cse6) .cse0)))) (and (or .cse4 .cse1) (or .cse4 .cse2))) .cse3))) is different from true [2024-11-14 05:46:28,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-14 05:46:30,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-14 05:46:32,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-14 05:46:34,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-14 05:46:37,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-14 05:46:39,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-14 05:46:41,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-14 05:46:43,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-14 05:46:45,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-14 05:46:50,261 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 [1] [2024-11-14 05:46:50,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:50,261 INFO L93 Difference]: Finished difference Result 80 states and 111 transitions. [2024-11-14 05:46:50,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:46:50,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2024-11-14 05:46:50,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:50,282 INFO L225 Difference]: With dead ends: 80 [2024-11-14 05:46:50,283 INFO L226 Difference]: Without dead ends: 78 [2024-11-14 05:46:50,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=49, Invalid=144, Unknown=5, NotChecked=108, Total=306 [2024-11-14 05:46:50,284 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 46 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 342 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:50,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 305 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 4 Unknown, 342 Unchecked, 28.6s Time] [2024-11-14 05:46:50,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-14 05:46:50,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2024-11-14 05:46:50,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 48 states have internal predecessors, (57), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-14 05:46:50,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 107 transitions. [2024-11-14 05:46:50,312 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 107 transitions. Word has length 91 [2024-11-14 05:46:50,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:50,313 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 107 transitions. [2024-11-14 05:46:50,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-14 05:46:50,314 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 107 transitions. [2024-11-14 05:46:50,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 05:46:50,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:50,317 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:46:50,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 05:46:50,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 05:46:50,518 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:46:50,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:50,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2116489310, now seen corresponding path program 1 times [2024-11-14 05:46:50,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:46:50,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327100444] [2024-11-14 05:46:50,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:50,519 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 05:46:50,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:46:50,522 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 05:46:50,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/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 (4)] Waiting until timeout for monitored process [2024-11-14 05:46:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:50,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 05:46:50,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:48:05,744 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-14 05:48:05,744 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:49:39,462 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse36 ((_ sign_extend 24) c_~var_1_2~0))) (let ((.cse12 (= (_ bv4 32) .cse36)) (.cse38 ((_ sign_extend 24) c_~var_1_4~0))) (let ((.cse16 (bvslt .cse38 (_ bv0 32))) (.cse28 (not .cse12)) (.cse26 ((_ zero_extend 24) c_~var_1_5~0)) (.cse35 ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse38)))) (.cse29 ((_ sign_extend 24) ((_ extract 7 0) .cse38))) (.cse9 (= c_~var_1_3~0 (_ bv0 8))) (.cse37 ((_ to_fp 8 24) c_currentRoundingMode (/ 253.0 5.0))) (.cse1 (bvslt .cse38 (bvadd (bvneg ((_ sign_extend 24) c_~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) c_~var_1_11~0))))) (let ((.cse20 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0))))) (.cse21 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0)))) (.cse4 (= (_ bv14 32) ((_ sign_extend 24) c_~var_1_1~0))) (.cse19 (not .cse1)) (.cse13 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse37) c_~var_1_14~0)))) (.cse5 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse37) c_~var_1_14~0))))) (.cse6 (not .cse9)) (.cse15 (= .cse36 .cse29)) (.cse23 (fp.eq c_~var_1_10~0 c_~var_1_14~0)) (.cse17 (= .cse36 .cse35)) (.cse27 (= (_ bv15 32) .cse26)) (.cse24 (or .cse28 (= (_ bv4 32) .cse35))) (.cse18 (not .cse16)) (.cse0 (fp.gt (fp.mul c_currentRoundingMode c_~var_1_10~0 c_~var_1_10~0) c_~var_1_10~0))) (and (or .cse0 (let ((.cse25 ((_ zero_extend 24) c_~var_1_9~0))) (let ((.cse14 (or .cse28 (= (_ bv4 32) .cse29))) (.cse10 (or (= .cse25 (_ bv15 32)) (not .cse27))) (.cse11 (= .cse25 .cse26))) (let ((.cse22 (and (or (and .cse23 .cse11 .cse12) .cse9) (or .cse6 (and (or .cse16 (and .cse23 .cse11 .cse14 .cse15)) (or (and .cse23 .cse17 .cse24 .cse10 .cse11) .cse18)))))) (let ((.cse2 (or .cse5 .cse22)) (.cse3 (or .cse22 .cse13))) (and (or (and (or .cse1 (and .cse2 .cse3)) .cse4 (or (let ((.cse7 (or (and .cse17 .cse10 .cse11) .cse18)) (.cse8 (or (and .cse11 .cse14 .cse15) .cse16))) (and (or .cse5 (and (or .cse6 (and .cse7 .cse8)) (or .cse9 (and .cse10 .cse11 .cse12)))) (or (and .cse9 .cse7 .cse8) .cse13))) .cse19)) .cse20) (or .cse21 (and (or (and .cse10 .cse11 .cse4 .cse6 .cse12 .cse13) .cse19) (or .cse1 (and .cse4 .cse2 .cse3)))))))))) (or (let ((.cse34 (and (or .cse9 (and .cse23 .cse27 .cse12)) (or .cse6 (and (or .cse16 (and .cse23 .cse27 .cse15)) (or (and .cse23 .cse17 .cse27 .cse24) .cse18)))))) (let ((.cse32 (or .cse34 .cse5)) (.cse33 (or .cse34 .cse13))) (and (or (and (or (let ((.cse30 (or .cse16 (and .cse27 .cse15))) (.cse31 (or (and .cse17 .cse27) .cse18))) (and (or (and .cse30 .cse9 .cse31) .cse13) (or .cse5 (and (or (and .cse30 .cse31) .cse6) (or .cse9 (and .cse27 .cse12)))))) .cse19) .cse4 (or .cse1 (and .cse32 .cse33))) .cse20) (or .cse21 (and (or .cse1 (and .cse4 .cse32 .cse33)) (or (and .cse27 .cse4 .cse6 .cse12 .cse13) .cse19)))))) (not .cse0))))))) is different from true [2024-11-14 05:50:25,102 WARN L873 $PredicateComparison]: unable to prove that (or (fp.gt (fp.mul c_currentRoundingMode c_~var_1_10~0 c_~var_1_10~0) c_~var_1_10~0) (let ((.cse19 ((_ sign_extend 24) c_~var_1_4~0))) (let ((.cse11 (= c_~var_1_3~0 (_ bv0 8))) (.cse14 (bvslt .cse19 (_ bv0 32))) (.cse20 ((_ sign_extend 24) c_~var_1_2~0))) (let ((.cse3 (= (_ bv4 32) .cse20)) (.cse12 (= .cse20 ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse19))))) (.cse13 (not .cse14)) (.cse15 (= .cse20 ((_ sign_extend 24) ((_ extract 7 0) .cse19)))) (.cse2 (not .cse11)) (.cse18 ((_ to_fp 8 24) c_currentRoundingMode (/ 253.0 5.0)))) (let ((.cse5 (bvslt .cse19 (bvadd (bvneg ((_ sign_extend 24) c_~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) c_~var_1_11~0)))) (.cse4 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse18) c_~var_1_14~0)))) (.cse8 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse18) c_~var_1_14~0))))) (.cse16 (let ((.cse17 (fp.eq c_~var_1_10~0 c_~var_1_14~0))) (and (or .cse11 (and .cse17 .cse3)) (or (and (or (and .cse17 .cse12) .cse13) (or (and .cse17 .cse15) .cse14)) .cse2))))) (let ((.cse6 (or .cse8 .cse16)) (.cse7 (or .cse16 .cse4)) (.cse1 (= (_ bv14 32) ((_ sign_extend 24) c_~var_1_1~0))) (.cse0 (not .cse5))) (and (or (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4)) (or .cse5 (and .cse6 .cse1 .cse7)))) (or (and (or .cse5 (and .cse6 .cse7)) .cse1 (or (let ((.cse9 (or .cse14 .cse15)) (.cse10 (or .cse12 .cse13))) (and (or .cse8 (and (or .cse2 (and .cse9 .cse10)) (or .cse11 .cse3))) (or (and .cse9 .cse11 .cse10) .cse4))) .cse0)) (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0)))))))))))) is different from true [2024-11-14 05:50:50,700 WARN L873 $PredicateComparison]: unable to prove that (or (let ((.cse0 (let ((.cse2 (let ((.cse6 (fp.eq c_~var_1_14~0 c_~var_1_14~0)) (.cse4 ((_ sign_extend 24) c_~var_1_2~0)) (.cse7 (= c_~var_1_3~0 (_ bv0 8)))) (and (or (and (forall ((~var_1_4~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (let ((.cse3 ((_ sign_extend 24) ~var_1_4~0))) (or (bvslt .cse3 (_ bv0 32)) (= ((_ sign_extend 24) ((_ extract 7 0) .cse3)) .cse4) (bvslt .cse3 (bvadd (bvneg ((_ sign_extend 24) ~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) ~var_1_11~0)))))) (forall ((~var_1_4~0 (_ BitVec 8)) (~var_1_12~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (let ((.cse5 ((_ sign_extend 24) ~var_1_4~0))) (or (bvslt .cse5 (bvadd (bvneg ((_ sign_extend 24) ~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) ~var_1_11~0))) (not (bvslt .cse5 (_ bv0 32))) (= .cse4 ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse5))))))) .cse6) (not .cse7)) (or (and .cse6 (= (_ bv4 32) .cse4)) .cse7)))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 253.0 5.0)))) (and (or (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse1) c_~var_1_14~0)))) .cse2) (= (_ bv14 32) ((_ sign_extend 24) c_~var_1_1~0)) (or .cse2 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse1) c_~var_1_14~0)))))))) (and (or .cse0 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0)))) (or .cse0 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_14~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0))))))) (fp.gt (fp.mul c_currentRoundingMode c_~var_1_14~0 c_~var_1_14~0) c_~var_1_14~0)) is different from true [2024-11-14 05:51:05,555 WARN L286 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 21 DAG size of output: 21 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:51:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-14 05:51:10,712 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:51:10,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327100444] [2024-11-14 05:51:10,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327100444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:51:10,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1268757283] [2024-11-14 05:51:10,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:10,713 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:51:10,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:51:10,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:51:10,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-14 05:51:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:11,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 05:51:11,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:53:21,154 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_property_#res#1| (_ bv1 32)))) (or (and (exists ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_13~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode)) (and (not (fp.gt (fp.mul currentRoundingMode ~var_1_14~0 ~var_1_14~0) ~var_1_14~0)) (fp.eq ~var_1_14~0 (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_13~0 ((_ to_fp 8 24) currentRoundingMode (/ 253.0 5.0))) ~var_1_14~0)) (fp.geq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (fp.eq ~var_1_14~0 (fp.sub currentRoundingMode ~var_1_15~0 ~var_1_16~0)) (fp.leq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))) .cse0) (and (exists ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_13~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode)) (and (not (fp.gt (fp.mul currentRoundingMode ~var_1_14~0 ~var_1_14~0) ~var_1_14~0)) (fp.geq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (not (fp.eq ~var_1_14~0 (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_13~0 ((_ to_fp 8 24) currentRoundingMode (/ 253.0 5.0))) ~var_1_14~0))) (fp.eq ~var_1_14~0 (fp.sub currentRoundingMode ~var_1_15~0 ~var_1_16~0)) (fp.leq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))) .cse0) (and (exists ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_13~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode)) (and (not (fp.gt (fp.mul currentRoundingMode ~var_1_14~0 ~var_1_14~0) ~var_1_14~0)) (fp.eq ~var_1_14~0 (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_13~0 ((_ to_fp 8 24) currentRoundingMode (/ 253.0 5.0))) ~var_1_14~0)) (fp.geq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (not (fp.eq ~var_1_14~0 (fp.sub currentRoundingMode ~var_1_15~0 ~var_1_16~0))) (fp.leq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))) .cse0) (and (exists ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_13~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24)) (currentRoundingMode RoundingMode)) (and (not (fp.gt (fp.mul currentRoundingMode ~var_1_14~0 ~var_1_14~0) ~var_1_14~0)) (fp.geq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 100000000000000000000.0))) (not (fp.eq ~var_1_14~0 (fp.add currentRoundingMode (fp.add currentRoundingMode ~var_1_13~0 ((_ to_fp 8 24) currentRoundingMode (/ 253.0 5.0))) ~var_1_14~0))) (not (fp.eq ~var_1_14~0 (fp.sub currentRoundingMode ~var_1_15~0 ~var_1_16~0))) (fp.leq ~var_1_14~0 ((_ to_fp 8 24) currentRoundingMode 4611686018427382800.0)))) .cse0))) is different from false [2024-11-14 05:53:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-14 05:53:22,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:55:15,578 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse38 ((_ sign_extend 24) c_~var_1_2~0))) (let ((.cse6 (= (_ bv4 32) .cse38)) (.cse41 ((_ sign_extend 24) c_~var_1_4~0))) (let ((.cse13 (= c_~var_1_3~0 (_ bv0 8))) (.cse31 ((_ sign_extend 24) ((_ extract 7 0) .cse41))) (.cse19 (bvslt .cse41 (_ bv0 32))) (.cse30 (not .cse6)) (.cse39 ((_ sign_extend 24) ((_ extract 7 0) (bvneg .cse41)))) (.cse29 ((_ zero_extend 24) c_~var_1_5~0)) (.cse40 ((_ to_fp 8 24) c_currentRoundingMode (/ 253.0 5.0))) (.cse9 (bvslt .cse41 (bvadd (bvneg ((_ sign_extend 24) c_~var_1_12~0)) (_ bv16 32) ((_ sign_extend 24) c_~var_1_11~0))))) (let ((.cse0 (fp.gt (fp.mul c_currentRoundingMode c_~var_1_10~0 c_~var_1_10~0) c_~var_1_10~0)) (.cse1 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0)))) (.cse24 (forall ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.sub c_currentRoundingMode ~var_1_15~0 ~var_1_16~0))))) (.cse4 (= (_ bv14 32) ((_ sign_extend 24) c_~var_1_1~0))) (.cse8 (not .cse9)) (.cse7 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse40) c_~var_1_14~0)))) (.cse16 (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_10~0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode ~var_1_13~0 .cse40) c_~var_1_14~0))))) (.cse32 (= (_ bv15 32) .cse29)) (.cse20 (= .cse38 .cse39)) (.cse27 (or .cse30 (= (_ bv4 32) .cse39))) (.cse21 (not .cse19)) (.cse26 (fp.eq c_~var_1_10~0 c_~var_1_14~0)) (.cse18 (= .cse38 .cse31)) (.cse5 (not .cse13))) (and (or .cse0 (let ((.cse28 ((_ zero_extend 24) c_~var_1_9~0))) (let ((.cse22 (not .cse32)) (.cse23 (= .cse28 (_ bv15 32))) (.cse17 (or .cse30 (= (_ bv4 32) .cse31))) (.cse3 (= .cse28 .cse29))) (let ((.cse25 (and (or (and (or .cse21 (and .cse26 .cse20 .cse27 .cse3)) (or .cse22 (and (or .cse19 (and .cse26 .cse23 .cse17 .cse18)) (or (and .cse26 .cse20 .cse27 .cse23) .cse21))) (or .cse19 (and .cse26 .cse3 .cse17 .cse18))) .cse5) (or (and .cse26 .cse3 .cse6) .cse13)))) (let ((.cse10 (or .cse16 .cse25)) (.cse11 (or .cse7 .cse25)) (.cse2 (or .cse23 .cse22))) (and (or .cse1 (and (or (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8) (or .cse9 (and .cse10 .cse11 .cse4)))) (or (and (or .cse9 (and .cse10 .cse11)) .cse4 (or (let ((.cse12 (or .cse22 (and (or (and .cse20 .cse23) .cse21) (or .cse19 (and .cse23 .cse18))))) (.cse14 (or (and .cse20 .cse3) .cse21)) (.cse15 (or (and .cse3 .cse17 .cse18) .cse19))) (and (or (and .cse12 .cse13 .cse14 .cse15) .cse7) (or .cse16 (and (or (and .cse12 .cse14 .cse15) .cse5) (or .cse13 (and .cse2 .cse3 .cse6)))))) .cse8)) .cse24))))))) (or (not .cse0) (let ((.cse37 (and (or .cse13 (and .cse26 .cse32 .cse6)) (or (and .cse32 (or (and .cse26 .cse20 .cse27) .cse21) (or (and .cse26 .cse18) .cse19)) .cse5)))) (let ((.cse33 (or .cse16 .cse37)) (.cse34 (or .cse37 .cse7))) (and (or .cse1 (and (or (and .cse33 .cse4 .cse34) .cse9) (or (and .cse32 .cse4 .cse5 .cse6 .cse7) .cse8))) (or .cse24 (and (or .cse9 (and .cse33 .cse34)) .cse4 (or (let ((.cse35 (or .cse19 .cse18)) (.cse36 (or .cse20 .cse21))) (and (or .cse16 (and (or .cse13 (and .cse32 .cse6)) (or .cse5 (and .cse32 .cse35 .cse36)))) (or (and .cse32 .cse35 .cse13 .cse36) .cse7))) .cse8)))))))))))) is different from true [2024-11-14 05:56:21,790 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-14 05:56:21,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1268757283] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:56:21,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578747949] [2024-11-14 05:56:21,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:56:21,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:56:21,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:56:21,794 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:56:21,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a11a5b0d-a2d1-4da1-9878-d87d1c0bbd42/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:56:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:56:21,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 05:56:21,944 INFO L278 TraceCheckSpWp]: Computing forward predicates...