./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c --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_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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_79aedb62-688c-4c9d-8626-1b644ba23960/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 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:42:44,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:42:44,626 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:42:44,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:42:44,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:42:44,665 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:42:44,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:42:44,666 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:42:44,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:42:44,667 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:42:44,667 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:42:44,668 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:42:44,668 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:42:44,668 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:42:44,668 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:42:44,668 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:42:44,669 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:42:44,669 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:42:44,669 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:42:44,669 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:42:44,669 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:42:44,670 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:42:44,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:42:44,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:42:44,671 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:42:44,671 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:42:44,671 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:42:44,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:42:44,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:42:44,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:42:44,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:42:44,672 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:42:44,672 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:42:44,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:42:44,672 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:42:44,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:42:44,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:42:44,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:42:44,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:42:44,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:42:44,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:42:44,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:42:44,674 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:42:44,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:42:44,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:42:44,674 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:42:44,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:42:44,675 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_79aedb62-688c-4c9d-8626-1b644ba23960/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 -> 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd [2024-11-14 03:42:45,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:42:45,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:42:45,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:42:45,055 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:42:45,056 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:42:45,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c Unable to find full path for "g++" [2024-11-14 03:42:47,586 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:42:47,921 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:42:47,922 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2024-11-14 03:42:47,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/data/5208faed9/be574a443b824610960c5783041b8b1e/FLAGca868deb2 [2024-11-14 03:42:47,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/data/5208faed9/be574a443b824610960c5783041b8b1e [2024-11-14 03:42:47,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:42:47,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:42:47,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:42:47,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:42:47,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:42:47,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:42:47" (1/1) ... [2024-11-14 03:42:47,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c9e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:47, skipping insertion in model container [2024-11-14 03:42:47,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:42:47" (1/1) ... [2024-11-14 03:42:47,991 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:42:48,163 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_79aedb62-688c-4c9d-8626-1b644ba23960/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2024-11-14 03:42:48,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:42:48,197 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:42:48,210 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_79aedb62-688c-4c9d-8626-1b644ba23960/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2024-11-14 03:42:48,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:42:48,249 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:42:48,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48 WrapperNode [2024-11-14 03:42:48,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:42:48,254 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:42:48,255 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:42:48,255 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:42:48,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (1/1) ... [2024-11-14 03:42:48,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (1/1) ... [2024-11-14 03:42:48,311 INFO L138 Inliner]: procedures = 18, calls = 17, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2024-11-14 03:42:48,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:42:48,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:42:48,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:42:48,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:42:48,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (1/1) ... [2024-11-14 03:42:48,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (1/1) ... [2024-11-14 03:42:48,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (1/1) ... [2024-11-14 03:42:48,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (1/1) ... [2024-11-14 03:42:48,344 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (1/1) ... [2024-11-14 03:42:48,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (1/1) ... [2024-11-14 03:42:48,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (1/1) ... [2024-11-14 03:42:48,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (1/1) ... [2024-11-14 03:42:48,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:42:48,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:42:48,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:42:48,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:42:48,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (1/1) ... [2024-11-14 03:42:48,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:42:48,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:42:48,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:42:48,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:42:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:42:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:42:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:42:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 03:42:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:42:48,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 03:42:48,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:42:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:42:48,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:42:48,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:42:48,586 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:42:48,589 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:42:48,783 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-14 03:42:48,783 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:42:48,892 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:42:48,893 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:42:48,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:42:48 BoogieIcfgContainer [2024-11-14 03:42:48,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:42:48,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:42:48,899 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:42:48,906 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:42:48,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:42:47" (1/3) ... [2024-11-14 03:42:48,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb17b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:42:48, skipping insertion in model container [2024-11-14 03:42:48,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:48" (2/3) ... [2024-11-14 03:42:48,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb17b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:42:48, skipping insertion in model container [2024-11-14 03:42:48,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:42:48" (3/3) ... [2024-11-14 03:42:48,910 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2024-11-14 03:42:48,932 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:42:48,935 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG inv_sqrt_Quake.c that has 1 procedures, 6 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 03:42:49,017 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:42:49,039 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;@35a5447d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:42:49,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:42:49,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:49,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-14 03:42:49,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:49,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-14 03:42:49,052 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:42:49,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:49,060 INFO L85 PathProgramCache]: Analyzing trace with hash 60993, now seen corresponding path program 1 times [2024-11-14 03:42:49,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:42:49,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750619328] [2024-11-14 03:42:49,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:49,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:42:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:42:49,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:42:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:42:49,305 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:42:49,307 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:42:49,309 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:42:49,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:42:49,320 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:42:49,339 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:42:49,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:42:49 BoogieIcfgContainer [2024-11-14 03:42:49,348 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:42:49,349 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:42:49,349 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:42:49,350 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:42:49,350 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:42:48" (3/4) ... [2024-11-14 03:42:49,355 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:42:49,356 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:42:49,360 INFO L158 Benchmark]: Toolchain (without parser) took 1397.27ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 53.6MB in the end (delta: 39.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-14 03:42:49,361 INFO L158 Benchmark]: CDTParser took 1.59ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:42:49,361 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.13ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.6MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:42:49,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.34ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.6MB in the end (delta: 994.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:42:49,362 INFO L158 Benchmark]: Boogie Preprocessor took 42.91ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 894.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:42:49,362 INFO L158 Benchmark]: RCFGBuilder took 535.46ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 67.8MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:42:49,362 INFO L158 Benchmark]: TraceAbstraction took 449.38ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 54.1MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:42:49,363 INFO L158 Benchmark]: Witness Printer took 7.13ms. Allocated memory is still 117.4MB. Free memory was 54.1MB in the beginning and 53.6MB in the end (delta: 449.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:42:49,368 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.59ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.13ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.6MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.34ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.6MB in the end (delta: 994.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.91ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 894.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 535.46ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 67.8MB in the end (delta: 12.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 449.38ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 54.1MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 7.13ms. Allocated memory is still 117.4MB. Free memory was 54.1MB in the beginning and 53.6MB in the end (delta: 449.1kB). 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: 13]: 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 48, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryArithmeticFLOAToperation at line 22. Possible FailurePath: [L45] float a,r; [L47] a = __VERIFIER_nondet_float() [L48] CALL assume_abort_if_not(a >= 0.1f && a <= 100.f) [L11] COND FALSE !(!cond) [L48] RET assume_abort_if_not(a >= 0.1f && a <= 100.f) [L50] CALL, EXPR InvSqrt(a) [L22] float xhalf = 0.5f*x; [L23] union float_int i; [L24] i.f = x [L25] EXPR i.i [L25] i.i = 0x5f3759df - (i.i>>1) [L26] EXPR i.f [L26] x = i.f [L27] x = x*(1.5f-xhalf*x*x) [L28] return x; [L28] return x; [L50] RET, EXPR InvSqrt(a) [L50] r = InvSqrt(a) [L52] CALL __VERIFIER_assert(r >= 0.f && r <= 10.) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, 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=6occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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 03:42:49,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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_79aedb62-688c-4c9d-8626-1b644ba23960/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 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:42:52,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:42:53,049 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 03:42:53,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:42:53,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:42:53,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:42:53,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:42:53,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:42:53,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:42:53,109 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:42:53,110 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:42:53,110 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:42:53,110 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:42:53,110 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:42:53,111 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:42:53,111 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:42:53,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:42:53,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:42:53,113 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:42:53,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:42:53,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:42:53,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:42:53,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:42:53,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:42:53,113 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:42:53,113 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:42:53,113 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:42:53,114 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:42:53,114 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:42:53,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:42:53,114 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:42:53,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:42:53,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:42:53,114 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:42:53,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:42:53,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:42:53,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:42:53,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:42:53,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:42:53,116 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:42:53,116 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:42:53,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:42:53,116 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:42:53,116 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_79aedb62-688c-4c9d-8626-1b644ba23960/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 -> 1f9d99a1e914bb5db4e356a6920ef9cb10f38df5cae5223ce35a4e418e6502dd [2024-11-14 03:42:53,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:42:53,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:42:53,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:42:53,590 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:42:53,591 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:42:53,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c Unable to find full path for "g++" [2024-11-14 03:42:55,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:42:56,258 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:42:56,262 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2024-11-14 03:42:56,281 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/data/deadba664/48b009ce28df4018829558eecf3528fa/FLAG8827b4b0c [2024-11-14 03:42:56,562 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/data/deadba664/48b009ce28df4018829558eecf3528fa [2024-11-14 03:42:56,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:42:56,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:42:56,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:42:56,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:42:56,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:42:56,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:56,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25723343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56, skipping insertion in model container [2024-11-14 03:42:56,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:56,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:42:56,844 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_79aedb62-688c-4c9d-8626-1b644ba23960/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2024-11-14 03:42:56,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:42:56,894 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:42:56,911 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_79aedb62-688c-4c9d-8626-1b644ba23960/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2024-11-14 03:42:56,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:42:56,964 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:42:56,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56 WrapperNode [2024-11-14 03:42:56,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:42:56,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:42:56,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:42:56,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:42:56,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:56,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:57,025 INFO L138 Inliner]: procedures = 21, calls = 17, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2024-11-14 03:42:57,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:42:57,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:42:57,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:42:57,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:42:57,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:57,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:57,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:57,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:57,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:57,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:57,076 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:57,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:57,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:42:57,089 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:42:57,089 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:42:57,089 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:42:57,091 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (1/1) ... [2024-11-14 03:42:57,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:42:57,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:42:57,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:42:57,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:42:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:42:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:42:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:42:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-14 03:42:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:42:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:42:57,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:42:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-14 03:42:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:42:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:42:57,330 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:42:57,333 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:42:59,657 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-14 03:42:59,657 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:42:59,667 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:42:59,667 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:42:59,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:42:59 BoogieIcfgContainer [2024-11-14 03:42:59,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:42:59,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:42:59,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:42:59,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:42:59,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:42:56" (1/3) ... [2024-11-14 03:42:59,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bac35ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:42:59, skipping insertion in model container [2024-11-14 03:42:59,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:42:56" (2/3) ... [2024-11-14 03:42:59,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bac35ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:42:59, skipping insertion in model container [2024-11-14 03:42:59,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:42:59" (3/3) ... [2024-11-14 03:42:59,683 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2024-11-14 03:42:59,705 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:42:59,708 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG inv_sqrt_Quake.c that has 1 procedures, 12 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 03:42:59,798 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:42:59,818 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;@276868d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:42:59,819 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:42:59,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:42:59,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 03:42:59,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:42:59,836 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:42:59,837 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:42:59,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:42:59,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2024-11-14 03:42:59,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:42:59,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725593677] [2024-11-14 03:42:59,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:42:59,865 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 03:42:59,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:42:59,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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 03:42:59,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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 03:43:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:43:00,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:43:00,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:43:00,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:43:00,424 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:43:00,425 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:43:00,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725593677] [2024-11-14 03:43:00,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725593677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:43:00,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:43:00,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:43:00,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617814889] [2024-11-14 03:43:00,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:43:00,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:43:00,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:43:00,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:43:00,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:43:00,474 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:43:00,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:43:00,489 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2024-11-14 03:43:00,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:43:00,491 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-14 03:43:00,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:43:00,500 INFO L225 Difference]: With dead ends: 21 [2024-11-14 03:43:00,501 INFO L226 Difference]: Without dead ends: 8 [2024-11-14 03:43:00,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 03:43:00,508 INFO L432 NwaCegarLoop]: 11 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, 11 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 03:43:00,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:43:00,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-11-14 03:43:00,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-14 03:43:00,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:43:00,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2024-11-14 03:43:00,576 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2024-11-14 03:43:00,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:43:00,577 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2024-11-14 03:43:00,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:43:00,577 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2024-11-14 03:43:00,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 03:43:00,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:43:00,578 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:43:00,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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 03:43:00,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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 03:43:00,783 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:43:00,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:43:00,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2024-11-14 03:43:00,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:43:00,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080232002] [2024-11-14 03:43:00,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:43:00,785 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 03:43:00,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:43:00,790 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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 03:43:00,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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 03:43:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:43:01,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:43:01,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:43:16,509 WARN L851 $PredicateComparison]: unable to prove that (and (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_6|)))) (and (fp.geq .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))) (= (let ((.cse1 (let ((.cse2 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_6| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) |c_ULTIMATE.start_InvSqrt_#res#1|) (fp.leq .cse0 ((_ to_fp 8 24) c_currentRoundingMode 100.0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-14 03:44:08,247 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (.cse6 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0))) (.cse7 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0)))) (or (and (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_6|)))) (let ((.cse2 (let ((.cse5 (let ((.cse8 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_6| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse8) ((_ extract 30 23) .cse8) ((_ extract 22 0) .cse8))))) (fp.mul roundNearestTiesToEven .cse5 (fp.sub roundNearestTiesToEven .cse6 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse7 .cse0) .cse5) .cse5)))))) (and (fp.leq .cse0 .cse1) (fp.geq .cse2 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse2) .cse3) (fp.geq .cse0 .cse4))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (or (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 32))) (let ((.cse9 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_6|)))) (and (fp.leq .cse9 .cse1) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse10 (let ((.cse11 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_6| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse11) ((_ extract 30 23) .cse11) ((_ extract 22 0) .cse11))))) (fp.mul roundNearestTiesToEven .cse10 (fp.sub roundNearestTiesToEven .cse6 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse7 .cse9) .cse10) .cse10))))) .cse3)) (fp.geq .cse9 .cse4)))) (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 32))) (let ((.cse13 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_6|)))) (and (not (fp.geq (let ((.cse12 (let ((.cse14 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_6| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse14) ((_ extract 30 23) .cse14) ((_ extract 22 0) .cse14))))) (fp.mul roundNearestTiesToEven .cse12 (fp.sub roundNearestTiesToEven .cse6 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse7 .cse13) .cse12) .cse12)))) (_ +zero 8 24))) (fp.leq .cse13 .cse1) (fp.geq .cse13 .cse4))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))))) is different from false [2024-11-14 03:44:39,096 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (.cse6 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0)))) (or (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_6|)))) (and (fp.leq .cse0 .cse1) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse2 (let ((.cse5 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_6| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse0) .cse2) .cse2))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse0 .cse6)))) (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_6|)))) (and (not (fp.geq (let ((.cse7 (let ((.cse9 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_6| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))))) (fp.mul roundNearestTiesToEven .cse7 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse8) .cse7) .cse7)))) (_ +zero 8 24))) (fp.leq .cse8 .cse1) (fp.geq .cse8 .cse6)))))) is different from false [2024-11-14 03:44:41,141 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (.cse6 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0)))) (or (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_6|)))) (and (fp.leq .cse0 .cse1) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse2 (let ((.cse5 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_6| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse2 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse0) .cse2) .cse2))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.geq .cse0 .cse6)))) (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_6|)))) (and (not (fp.geq (let ((.cse7 (let ((.cse9 (bvadd (_ bv1597463007 32) (bvneg (bvashr |v_skolemized_q#valueAsBitvector_6| (_ bv1 32)))))) (fp ((_ extract 31 31) .cse9) ((_ extract 30 23) .cse9) ((_ extract 22 0) .cse9))))) (fp.mul roundNearestTiesToEven .cse7 (fp.sub roundNearestTiesToEven .cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse8) .cse7) .cse7)))) (_ +zero 8 24))) (fp.leq .cse8 .cse1) (fp.geq .cse8 .cse6)))))) is different from true [2024-11-14 03:44:41,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:44:41,142 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:44:41,143 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:44:41,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080232002] [2024-11-14 03:44:41,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080232002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:44:41,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:44:41,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:44:41,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257163394] [2024-11-14 03:44:41,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:44:41,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:44:41,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:44:41,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:44:41,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=13, Unknown=4, NotChecked=24, Total=56 [2024-11-14 03:44:41,148 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:44:43,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:44:45,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:44:45,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:44:45,223 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2024-11-14 03:44:45,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:44:45,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-14 03:44:45,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:44:45,261 INFO L225 Difference]: With dead ends: 8 [2024-11-14 03:44:45,261 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:44:45,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=15, Invalid=13, Unknown=4, NotChecked=24, Total=56 [2024-11-14 03:44:45,262 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:44:45,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 22 Unchecked, 4.1s Time] [2024-11-14 03:44:45,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:44:45,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:44:45,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:44:45,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:44:45,265 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2024-11-14 03:44:45,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:44:45,265 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:44:45,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:44:45,266 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:44:45,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:44:45,270 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:44:45,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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 03:44:45,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/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 03:44:45,475 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 03:44:45,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 03:44:45,486 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:44:45,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:44:45 BoogieIcfgContainer [2024-11-14 03:44:45,496 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:44:45,498 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:44:45,499 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:44:45,499 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:44:45,500 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:42:59" (3/4) ... [2024-11-14 03:44:45,503 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 03:44:45,514 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-14 03:44:45,514 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 03:44:45,515 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 03:44:45,515 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 03:44:45,627 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:44:45,631 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 03:44:45,632 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:44:45,633 INFO L158 Benchmark]: Toolchain (without parser) took 109063.65ms. Allocated memory is still 83.9MB. Free memory was 60.2MB in the beginning and 19.2MB in the end (delta: 40.9MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2024-11-14 03:44:45,633 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:44:45,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.83ms. Allocated memory is still 83.9MB. Free memory was 60.2MB in the beginning and 48.4MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:44:45,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.92ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 47.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:44:45,634 INFO L158 Benchmark]: Boogie Preprocessor took 59.01ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 45.9MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:44:45,635 INFO L158 Benchmark]: RCFGBuilder took 2578.87ms. Allocated memory is still 83.9MB. Free memory was 45.9MB in the beginning and 35.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:44:45,635 INFO L158 Benchmark]: TraceAbstraction took 105825.68ms. Allocated memory is still 83.9MB. Free memory was 35.2MB in the beginning and 23.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-11-14 03:44:45,635 INFO L158 Benchmark]: Witness Printer took 134.25ms. Allocated memory is still 83.9MB. Free memory was 23.8MB in the beginning and 19.2MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:44:45,642 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.83ms. Allocated memory is still 83.9MB. Free memory was 60.2MB in the beginning and 48.4MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.92ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 47.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.01ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 45.9MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2578.87ms. Allocated memory is still 83.9MB. Free memory was 45.9MB in the beginning and 35.5MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 105825.68ms. Allocated memory is still 83.9MB. Free memory was 35.2MB in the beginning and 23.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Witness Printer took 134.25ms. Allocated memory is still 83.9MB. Free memory was 23.8MB in the beginning and 19.2MB in the end (delta: 4.6MB). 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 - PositiveResult [Line: 13]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 105.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 22 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 99.6s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 3 QuantifiedInterpolants, 871 SizeOfPredicates, 2 NumberOfNonLiveVariables, 78 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 03:44:45,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79aedb62-688c-4c9d-8626-1b644ba23960/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE