./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.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_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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_140a621e-579d-4980-b7b5-45338c242f4a/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 17022ac2d6c28ca56f87370a650921d1e6855c5509a626b4c9b141cb3850c9a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:01:30,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:01:30,116 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:01:30,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:01:30,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:01:30,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:01:30,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:01:30,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:01:30,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:01:30,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:01:30,159 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:01:30,160 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:01:30,160 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:01:30,160 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:01:30,160 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:01:30,160 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:01:30,160 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:01:30,160 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:01:30,160 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:01:30,160 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:01:30,163 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:01:30,163 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:01:30,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:01:30,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:01:30,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:01:30,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:01:30,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:01:30,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:01:30,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:01:30,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:01:30,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:01:30,165 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:01:30,165 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:01:30,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:01:30,165 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:01:30,165 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:01:30,165 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:01:30,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:01:30,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:01:30,165 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:01:30,165 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:01:30,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:01:30,165 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:01:30,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:01:30,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:01:30,166 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:01:30,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:01:30,166 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_140a621e-579d-4980-b7b5-45338c242f4a/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 -> 17022ac2d6c28ca56f87370a650921d1e6855c5509a626b4c9b141cb3850c9a7 [2024-11-14 03:01:30,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:01:30,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:01:30,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:01:30,486 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:01:30,486 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:01:30,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c Unable to find full path for "g++" [2024-11-14 03:01:32,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:01:32,930 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:01:32,933 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2024-11-14 03:01:32,942 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/data/7a7c569c2/616a0a1ad1cd44ad81c68826c8d5ccd1/FLAGa89c22002 [2024-11-14 03:01:33,198 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/data/7a7c569c2/616a0a1ad1cd44ad81c68826c8d5ccd1 [2024-11-14 03:01:33,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:01:33,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:01:33,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:01:33,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:01:33,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:01:33,209 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@530b874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33, skipping insertion in model container [2024-11-14 03:01:33,210 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,226 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:01:33,462 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_140a621e-579d-4980-b7b5-45338c242f4a/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c[2414,2427] [2024-11-14 03:01:33,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:01:33,481 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:01:33,512 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_140a621e-579d-4980-b7b5-45338c242f4a/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c[2414,2427] [2024-11-14 03:01:33,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:01:33,529 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:01:33,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33 WrapperNode [2024-11-14 03:01:33,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:01:33,532 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:01:33,532 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:01:33,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:01:33,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,597 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 218 [2024-11-14 03:01:33,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:01:33,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:01:33,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:01:33,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:01:33,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:01:33,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:01:33,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:01:33,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:01:33,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (1/1) ... [2024-11-14 03:01:33,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:01:33,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:01:33,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:01:33,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:01:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:01:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:01:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:01:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 03:01:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:01:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 03:01:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:01:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:01:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:01:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:01:33,857 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:01:33,859 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:01:34,469 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-14 03:01:34,470 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:01:34,882 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:01:34,882 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-14 03:01:34,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:34 BoogieIcfgContainer [2024-11-14 03:01:34,883 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:01:34,886 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:01:34,886 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:01:34,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:01:34,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:01:33" (1/3) ... [2024-11-14 03:01:34,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2185f6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:01:34, skipping insertion in model container [2024-11-14 03:01:34,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:33" (2/3) ... [2024-11-14 03:01:34,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2185f6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:01:34, skipping insertion in model container [2024-11-14 03:01:34,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:34" (3/3) ... [2024-11-14 03:01:34,897 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c.c [2024-11-14 03:01:34,917 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:01:34,919 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1092c.c that has 1 procedures, 21 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-14 03:01:34,988 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:01:35,003 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;@a58be0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:01:35,003 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:01:35,007 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 20 states have internal predecessors, (32), 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 03:01:35,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 03:01:35,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:35,011 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:35,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:35,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:35,016 INFO L85 PathProgramCache]: Analyzing trace with hash 938996210, now seen corresponding path program 1 times [2024-11-14 03:01:35,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:35,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654027784] [2024-11-14 03:01:35,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:35,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:35,178 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 03:01:35,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:35,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654027784] [2024-11-14 03:01:35,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654027784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:35,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:35,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:01:35,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145464921] [2024-11-14 03:01:35,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:35,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:01:35,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:35,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:01:35,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:01:35,212 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 20 states have internal predecessors, (32), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 03:01:35,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:35,293 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. [2024-11-14 03:01:35,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:01:35,295 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2024-11-14 03:01:35,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:35,303 INFO L225 Difference]: With dead ends: 41 [2024-11-14 03:01:35,303 INFO L226 Difference]: Without dead ends: 19 [2024-11-14 03:01:35,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 03:01:35,311 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:35,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:01:35,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-14 03:01:35,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-14 03:01:35,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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 03:01:35,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-11-14 03:01:35,343 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2024-11-14 03:01:35,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:35,343 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-11-14 03:01:35,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 03:01:35,344 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-14 03:01:35,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 03:01:35,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:35,344 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:35,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:01:35,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:35,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:35,348 INFO L85 PathProgramCache]: Analyzing trace with hash 623822189, now seen corresponding path program 1 times [2024-11-14 03:01:35,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:35,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372151202] [2024-11-14 03:01:35,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:35,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:01:35,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:01:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:01:35,655 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:01:35,656 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:01:35,657 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:01:35,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:01:35,663 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 03:01:35,687 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:01:35,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:01:35 BoogieIcfgContainer [2024-11-14 03:01:35,694 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:01:35,694 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:01:35,696 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:01:35,696 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:01:35,697 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:34" (3/4) ... [2024-11-14 03:01:35,699 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:01:35,700 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:01:35,702 INFO L158 Benchmark]: Toolchain (without parser) took 2498.99ms. Allocated memory is still 109.1MB. Free memory was 84.5MB in the beginning and 63.3MB in the end (delta: 21.2MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2024-11-14 03:01:35,702 INFO L158 Benchmark]: CDTParser took 1.03ms. 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 03:01:35,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.49ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 72.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:01:35,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.07ms. Allocated memory is still 109.1MB. Free memory was 72.0MB in the beginning and 70.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:01:35,703 INFO L158 Benchmark]: Boogie Preprocessor took 52.97ms. Allocated memory is still 109.1MB. Free memory was 69.7MB in the beginning and 68.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:01:35,703 INFO L158 Benchmark]: RCFGBuilder took 1227.94ms. Allocated memory is still 109.1MB. Free memory was 68.2MB in the beginning and 54.6MB in the end (delta: 13.6MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2024-11-14 03:01:35,703 INFO L158 Benchmark]: TraceAbstraction took 808.19ms. Allocated memory is still 109.1MB. Free memory was 54.0MB in the beginning and 63.3MB in the end (delta: -9.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:01:35,704 INFO L158 Benchmark]: Witness Printer took 5.93ms. Allocated memory is still 109.1MB. Free memory was 63.3MB in the beginning and 63.3MB in the end (delta: 7.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:01:35,708 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 83.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.49ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 72.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.07ms. Allocated memory is still 109.1MB. Free memory was 72.0MB in the beginning and 70.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.97ms. Allocated memory is still 109.1MB. Free memory was 69.7MB in the beginning and 68.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1227.94ms. Allocated memory is still 109.1MB. Free memory was 68.2MB in the beginning and 54.6MB in the end (delta: 13.6MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * TraceAbstraction took 808.19ms. Allocated memory is still 109.1MB. Free memory was 54.0MB in the beginning and 63.3MB in the end (delta: -9.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.93ms. Allocated memory is still 109.1MB. Free memory was 63.3MB in the beginning and 63.3MB in the end (delta: 7.9kB). 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: 109]: 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 someBinaryArithmeticDOUBLEoperation at line 105, overapproximation of someBinaryArithmeticDOUBLEoperation at line 52, overapproximation of bitwiseOr at line 92. Possible FailurePath: [L16] static const double huge_ceil = 1.0e300; [L105] double x = 1.0 / 0.0; [L106] CALL, EXPR ceil_double(x) [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=0, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011] [L28] COND FALSE !(j0 < 20) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=0, j0=1024, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011] [L50] COND TRUE j0 > 51 [L51] COND TRUE j0 == 0x400 [L52] return x + x; VAL [\result=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=0] [L106] RET, EXPR ceil_double(x) [L106] double res = ceil_double(x); [L108] CALL, EXPR isinf_double(res) [L84] __int32_t hx, lx; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011] [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] EXPR lx | (-lx) [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] EXPR hx | (-hx) [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L108] RET, EXPR isinf_double(res) [L108] COND TRUE !isinf_double(res) [L109] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 03:01:35,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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_140a621e-579d-4980-b7b5-45338c242f4a/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 17022ac2d6c28ca56f87370a650921d1e6855c5509a626b4c9b141cb3850c9a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:01:38,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:01:38,489 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 03:01:38,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:01:38,496 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:01:38,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:01:38,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:01:38,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:01:38,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:01:38,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:01:38,524 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:01:38,524 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:01:38,524 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:01:38,524 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:01:38,524 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:01:38,525 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:01:38,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:01:38,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:01:38,525 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:01:38,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:01:38,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:01:38,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:01:38,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:01:38,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:01:38,526 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:01:38,526 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:01:38,527 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:01:38,527 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:01:38,527 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:01:38,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:01:38,527 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:01:38,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:01:38,528 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:01:38,528 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:01:38,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:01:38,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:01:38,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:01:38,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:01:38,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:01:38,529 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:01:38,529 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:01:38,529 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:01:38,529 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:01:38,529 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_140a621e-579d-4980-b7b5-45338c242f4a/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 -> 17022ac2d6c28ca56f87370a650921d1e6855c5509a626b4c9b141cb3850c9a7 [2024-11-14 03:01:38,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:01:38,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:01:38,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:01:38,862 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:01:38,863 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:01:38,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c Unable to find full path for "g++" [2024-11-14 03:01:40,837 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:01:41,075 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:01:41,076 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2024-11-14 03:01:41,087 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/data/1e141ccc5/1f874dcaa7e14b8ba203b5c2893a7a58/FLAG935641414 [2024-11-14 03:01:41,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/data/1e141ccc5/1f874dcaa7e14b8ba203b5c2893a7a58 [2024-11-14 03:01:41,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:01:41,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:01:41,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:01:41,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:01:41,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:01:41,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dee451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41, skipping insertion in model container [2024-11-14 03:01:41,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,145 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:01:41,379 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_140a621e-579d-4980-b7b5-45338c242f4a/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c[2414,2427] [2024-11-14 03:01:41,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:01:41,404 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:01:41,452 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_140a621e-579d-4980-b7b5-45338c242f4a/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c[2414,2427] [2024-11-14 03:01:41,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:01:41,476 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:01:41,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41 WrapperNode [2024-11-14 03:01:41,478 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:01:41,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:01:41,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:01:41,481 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:01:41,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,539 INFO L138 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 118 [2024-11-14 03:01:41,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:01:41,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:01:41,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:01:41,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:01:41,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,555 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,577 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:01:41,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:01:41,594 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:01:41,594 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:01:41,595 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (1/1) ... [2024-11-14 03:01:41,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:01:41,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:01:41,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:01:41,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:01:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:01:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-14 03:01:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-14 03:01:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:01:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:01:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:01:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:01:41,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:01:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:01:41,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:01:41,745 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:01:41,746 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:01:43,215 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-14 03:01:43,216 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:01:43,226 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:01:43,226 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-14 03:01:43,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:43 BoogieIcfgContainer [2024-11-14 03:01:43,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:01:43,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:01:43,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:01:43,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:01:43,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:01:41" (1/3) ... [2024-11-14 03:01:43,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad5cdea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:01:43, skipping insertion in model container [2024-11-14 03:01:43,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:41" (2/3) ... [2024-11-14 03:01:43,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad5cdea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:01:43, skipping insertion in model container [2024-11-14 03:01:43,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:43" (3/3) ... [2024-11-14 03:01:43,239 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c.c [2024-11-14 03:01:43,253 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:01:43,254 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1092c.c that has 1 procedures, 37 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-14 03:01:43,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:01:43,324 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;@51b5896e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:01:43,325 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:01:43,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 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 03:01:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 03:01:43,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:43,336 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:43,337 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:43,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:43,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1768962908, now seen corresponding path program 1 times [2024-11-14 03:01:43,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:01:43,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411182986] [2024-11-14 03:01:43,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:43,377 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 03:01:43,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:01:43,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 03:01:43,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 03:01:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:43,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:01:43,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:43,513 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 03:01:43,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:01:43,514 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:01:43,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411182986] [2024-11-14 03:01:43,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411182986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:43,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:43,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:01:43,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539151309] [2024-11-14 03:01:43,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:43,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:01:43,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:01:43,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:01:43,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:01:43,549 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 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 6.5) internal successors, (13), 2 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 03:01:43,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:43,568 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2024-11-14 03:01:43,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:01:43,570 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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) Word has length 13 [2024-11-14 03:01:43,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:43,577 INFO L225 Difference]: With dead ends: 72 [2024-11-14 03:01:43,577 INFO L226 Difference]: Without dead ends: 34 [2024-11-14 03:01:43,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 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 03:01:43,583 INFO L432 NwaCegarLoop]: 51 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, 51 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 03:01:43,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:01:43,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-14 03:01:43,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-14 03:01:43,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 33 states have internal predecessors, (48), 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 03:01:43,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2024-11-14 03:01:43,611 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2024-11-14 03:01:43,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:43,612 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2024-11-14 03:01:43,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 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 03:01:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2024-11-14 03:01:43,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 03:01:43,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:43,615 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:43,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 03:01:43,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 03:01:43,816 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:43,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:43,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1468275701, now seen corresponding path program 1 times [2024-11-14 03:01:43,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:01:43,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895625441] [2024-11-14 03:01:43,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:43,818 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 03:01:43,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:01:43,821 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 03:01:43,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 03:01:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:43,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:01:43,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:44,285 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 03:01:44,286 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:01:44,286 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:01:44,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895625441] [2024-11-14 03:01:44,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1895625441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:44,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:44,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:01:44,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715220736] [2024-11-14 03:01:44,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:44,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:01:44,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:01:44,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:01:44,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:01:44,289 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 03:01:44,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:44,616 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2024-11-14 03:01:44,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:01:44,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2024-11-14 03:01:44,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:44,618 INFO L225 Difference]: With dead ends: 42 [2024-11-14 03:01:44,618 INFO L226 Difference]: Without dead ends: 16 [2024-11-14 03:01:44,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:44,619 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:44,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 32 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:01:44,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-14 03:01:44,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-14 03:01:44,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 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 03:01:44,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2024-11-14 03:01:44,626 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2024-11-14 03:01:44,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:44,627 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2024-11-14 03:01:44,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 03:01:44,628 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2024-11-14 03:01:44,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 03:01:44,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:44,629 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:44,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 03:01:44,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 03:01:44,830 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:44,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:44,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1676244033, now seen corresponding path program 1 times [2024-11-14 03:01:44,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:01:44,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681756785] [2024-11-14 03:01:44,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:44,831 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 03:01:44,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:01:44,833 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 03:01:44,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 03:01:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:44,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 03:01:44,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:45,502 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 03:01:45,502 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:01:45,502 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:01:45,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681756785] [2024-11-14 03:01:45,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681756785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:45,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:45,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 03:01:45,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719254052] [2024-11-14 03:01:45,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:45,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:01:45,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:01:45,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:01:45,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:01:45,504 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 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 03:01:45,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:45,987 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2024-11-14 03:01:45,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:01:45,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 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 15 [2024-11-14 03:01:45,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:45,988 INFO L225 Difference]: With dead ends: 16 [2024-11-14 03:01:45,988 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 03:01:45,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-14 03:01:45,989 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:45,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:01:45,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 03:01:45,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 03:01:45,991 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 03:01:45,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 03:01:45,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2024-11-14 03:01:45,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:45,992 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 03:01:45,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 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 03:01:45,992 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 03:01:45,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 03:01:45,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:01:46,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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)] Ended with exit code 0 [2024-11-14 03:01:46,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 03:01:46,198 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-14 03:01:46,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 03:01:46,280 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:01:46,295 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 03:01:46,299 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 03:01:46,299 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 03:01:46,300 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 03:01:46,300 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 03:01:46,301 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 03:01:46,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:01:46 BoogieIcfgContainer [2024-11-14 03:01:46,302 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:01:46,303 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:01:46,303 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:01:46,303 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:01:46,303 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:43" (3/4) ... [2024-11-14 03:01:46,306 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 03:01:46,323 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-14 03:01:46,324 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-14 03:01:46,324 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 03:01:46,325 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 03:01:46,422 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 03:01:46,422 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 03:01:46,422 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:01:46,424 INFO L158 Benchmark]: Toolchain (without parser) took 5308.84ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 60.8MB in the beginning and 39.4MB in the end (delta: 21.5MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2024-11-14 03:01:46,424 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:01:46,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.45ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 48.0MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:01:46,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.88ms. Allocated memory is still 83.9MB. Free memory was 48.0MB in the beginning and 46.7MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:01:46,427 INFO L158 Benchmark]: Boogie Preprocessor took 53.35ms. Allocated memory is still 83.9MB. Free memory was 46.7MB in the beginning and 44.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:01:46,427 INFO L158 Benchmark]: RCFGBuilder took 1633.06ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 29.1MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:01:46,427 INFO L158 Benchmark]: TraceAbstraction took 3071.73ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 28.5MB in the beginning and 44.4MB in the end (delta: -15.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:01:46,429 INFO L158 Benchmark]: Witness Printer took 119.65ms. Allocated memory is still 92.3MB. Free memory was 44.4MB in the beginning and 39.4MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:01:46,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.45ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 48.0MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.88ms. Allocated memory is still 83.9MB. Free memory was 48.0MB in the beginning and 46.7MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.35ms. Allocated memory is still 83.9MB. Free memory was 46.7MB in the beginning and 44.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1633.06ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 29.1MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3071.73ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 28.5MB in the beginning and 44.4MB in the end (delta: -15.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 119.65ms. Allocated memory is still 92.3MB. Free memory was 44.4MB in the beginning and 39.4MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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: 109]: 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, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 67 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 8 QuantifiedInterpolants, 399 SizeOfPredicates, 8 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-14 03:01:46,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140a621e-579d-4980-b7b5-45338c242f4a/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 Writing output log to file Ultimate.log Result: TRUE