./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d.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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 5463c0227f502c4f65ae7bbf2b837d9391dfb26d5bc0061bf2040d731aef09b4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:45:04,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:45:05,089 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:45:05,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:45:05,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:45:05,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:45:05,117 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:45:05,118 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:45:05,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:45:05,118 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:45:05,118 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:45:05,118 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:45:05,118 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:45:05,118 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:45:05,119 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:45:05,119 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:45:05,119 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:45:05,119 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:45:05,119 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:45:05,120 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:45:05,120 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:45:05,120 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:45:05,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:45:05,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:45:05,120 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:45:05,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:45:05,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:45:05,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:45:05,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:45:05,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:45:05,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:45:05,121 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:45:05,121 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:45:05,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:45:05,121 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:45:05,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:45:05,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:45:05,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:45:05,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:45:05,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:45:05,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:45:05,122 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:45:05,122 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:45:05,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:45:05,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:45:05,123 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:45:05,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:45:05,123 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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 -> 5463c0227f502c4f65ae7bbf2b837d9391dfb26d5bc0061bf2040d731aef09b4 [2024-11-13 23:45:05,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:45:05,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:45:05,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:45:05,467 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:45:05,468 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:45:05,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-newlib/float_req_bl_1032d.c Unable to find full path for "g++" [2024-11-13 23:45:07,459 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:45:07,765 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:45:07,772 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c [2024-11-13 23:45:07,797 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/data/3d3aa1d4f/81d89ce1f5e4414eaca6acd0318d07e3/FLAG5d022cb5f [2024-11-13 23:45:07,827 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/data/3d3aa1d4f/81d89ce1f5e4414eaca6acd0318d07e3 [2024-11-13 23:45:07,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:45:07,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:45:07,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:45:07,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:45:07,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:45:07,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:45:07" (1/1) ... [2024-11-13 23:45:07,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2483bf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:07, skipping insertion in model container [2024-11-13 23:45:07,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:45:07" (1/1) ... [2024-11-13 23:45:07,862 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:45:08,060 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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c[1744,1757] [2024-11-13 23:45:08,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:45:08,080 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:45:08,114 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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c[1744,1757] [2024-11-13 23:45:08,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:45:08,134 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:45:08,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08 WrapperNode [2024-11-13 23:45:08,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:45:08,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:45:08,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:45:08,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:45:08,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (1/1) ... [2024-11-13 23:45:08,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (1/1) ... [2024-11-13 23:45:08,184 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 128 [2024-11-13 23:45:08,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:45:08,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:45:08,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:45:08,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:45:08,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (1/1) ... [2024-11-13 23:45:08,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (1/1) ... [2024-11-13 23:45:08,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (1/1) ... [2024-11-13 23:45:08,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (1/1) ... [2024-11-13 23:45:08,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (1/1) ... [2024-11-13 23:45:08,212 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (1/1) ... [2024-11-13 23:45:08,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (1/1) ... [2024-11-13 23:45:08,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (1/1) ... [2024-11-13 23:45:08,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:45:08,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:45:08,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:45:08,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:45:08,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (1/1) ... [2024-11-13 23:45:08,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:45:08,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:45:08,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:45:08,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:45:08,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:45:08,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:45:08,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:45:08,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-13 23:45:08,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 23:45:08,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-13 23:45:08,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:45:08,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:45:08,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 23:45:08,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:45:08,361 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:45:08,363 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:45:08,752 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 23:45:08,752 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:45:08,932 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:45:08,932 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-13 23:45:08,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:45:08 BoogieIcfgContainer [2024-11-13 23:45:08,933 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:45:08,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:45:08,936 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:45:08,941 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:45:08,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:45:07" (1/3) ... [2024-11-13 23:45:08,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b94115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:45:08, skipping insertion in model container [2024-11-13 23:45:08,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:08" (2/3) ... [2024-11-13 23:45:08,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b94115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:45:08, skipping insertion in model container [2024-11-13 23:45:08,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:45:08" (3/3) ... [2024-11-13 23:45:08,944 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d.c [2024-11-13 23:45:08,962 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:45:08,964 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1032d.c that has 1 procedures, 19 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-13 23:45:09,013 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:45:09,025 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;@5e1039ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:45:09,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:45:09,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 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) [2024-11-13 23:45:09,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 23:45:09,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:09,035 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:09,035 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:09,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:09,040 INFO L85 PathProgramCache]: Analyzing trace with hash 944900659, now seen corresponding path program 1 times [2024-11-13 23:45:09,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:09,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805621982] [2024-11-13 23:45:09,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:09,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:09,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:09,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:45:09,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805621982] [2024-11-13 23:45:09,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805621982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:09,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:09,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:45:09,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673216625] [2024-11-13 23:45:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:09,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:45:09,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:45:09,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:45:09,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:45:09,235 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-13 23:45:09,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:09,280 INFO L93 Difference]: Finished difference Result 37 states and 55 transitions. [2024-11-13 23:45:09,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:45:09,286 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2024-11-13 23:45:09,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:09,319 INFO L225 Difference]: With dead ends: 37 [2024-11-13 23:45:09,320 INFO L226 Difference]: Without dead ends: 17 [2024-11-13 23:45:09,324 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 [2024-11-13 23:45:09,328 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:09,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:45:09,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-13 23:45:09,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-13 23:45:09,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2024-11-13 23:45:09,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-11-13 23:45:09,361 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 9 [2024-11-13 23:45:09,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:09,361 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-13 23:45:09,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-13 23:45:09,362 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-11-13 23:45:09,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 23:45:09,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:09,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:09,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:45:09,363 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:09,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:09,364 INFO L85 PathProgramCache]: Analyzing trace with hash -52576108, now seen corresponding path program 1 times [2024-11-13 23:45:09,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:45:09,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715628714] [2024-11-13 23:45:09,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:09,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:45:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:45:09,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:45:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:45:09,593 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-13 23:45:09,593 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:45:09,595 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 23:45:09,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:45:09,601 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 23:45:09,620 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:45:09,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:45:09 BoogieIcfgContainer [2024-11-13 23:45:09,623 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:45:09,624 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:45:09,624 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:45:09,624 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:45:09,625 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:45:08" (3/4) ... [2024-11-13 23:45:09,627 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:45:09,628 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:45:09,629 INFO L158 Benchmark]: Toolchain (without parser) took 1795.63ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 104.7MB in the end (delta: 14.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-11-13 23:45:09,629 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:09,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.50ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 107.6MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:45:09,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.41ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 106.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:09,630 INFO L158 Benchmark]: Boogie Preprocessor took 32.32ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 104.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:09,630 INFO L158 Benchmark]: RCFGBuilder took 715.02ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 78.5MB in the end (delta: 26.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 23:45:09,631 INFO L158 Benchmark]: TraceAbstraction took 687.40ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 105.3MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:09,631 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.7MB in the end (delta: 613.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:09,636 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.50ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 107.6MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.41ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 106.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.32ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 104.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 715.02ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 78.5MB in the end (delta: 26.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 687.40ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 105.3MB in the end (delta: -27.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.7MB in the end (delta: 613.3kB). 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: 80]: 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 bitwiseAnd at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L75] float x = -1.0f / 0.0f; [L76] CALL, EXPR round_float(x) [L14] __uint32_t w; [L16] int exponent_less_127; [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (w) = gf_u.word [L24] EXPR w & 0x7f800000 [L24] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L26] COND FALSE !(exponent_less_127 < 23) [L42] COND TRUE exponent_less_127 == 128 [L44] return x + x; VAL [\result=2139095051, w=-1] [L76] RET, EXPR round_float(x) [L76] float res = round_float(x); [L79] CALL, EXPR isinf_float(res) [L58] __int32_t ix; VAL [x=2139095051] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (ix) = gf_u.word [L64] ix &= 0x7fffffff [L65] return ((ix) == 0x7f800000L); [L79] RET, EXPR isinf_float(res) [L79] COND TRUE !isinf_float(res) [L80] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 8 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=19occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2024-11-13 23:45:09,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 5463c0227f502c4f65ae7bbf2b837d9391dfb26d5bc0061bf2040d731aef09b4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:45:12,440 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:45:12,514 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-13 23:45:12,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:45:12,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:45:12,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:45:12,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:45:12,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:45:12,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:45:12,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:45:12,578 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:45:12,578 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:45:12,578 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:45:12,578 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:45:12,578 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:45:12,578 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:45:12,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:45:12,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:45:12,579 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:45:12,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:45:12,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:45:12,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:45:12,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:45:12,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:45:12,584 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:45:12,584 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:45:12,584 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:45:12,584 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:45:12,584 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:45:12,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:45:12,584 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:45:12,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:45:12,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:45:12,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:45:12,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:45:12,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:45:12,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:45:12,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:45:12,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:45:12,585 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:45:12,585 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:45:12,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:45:12,586 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:45:12,586 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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 -> 5463c0227f502c4f65ae7bbf2b837d9391dfb26d5bc0061bf2040d731aef09b4 [2024-11-13 23:45:12,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:45:12,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:45:12,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:45:12,995 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:45:12,996 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:45:12,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-newlib/float_req_bl_1032d.c Unable to find full path for "g++" [2024-11-13 23:45:14,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:45:15,237 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:45:15,242 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c [2024-11-13 23:45:15,253 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/data/fa2f6d81d/ac52c1251dd24036ac5f6c9eebec7873/FLAG8e2a07eba [2024-11-13 23:45:15,291 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/data/fa2f6d81d/ac52c1251dd24036ac5f6c9eebec7873 [2024-11-13 23:45:15,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:45:15,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:45:15,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:45:15,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:45:15,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:45:15,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637bd18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15, skipping insertion in model container [2024-11-13 23:45:15,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,330 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:45:15,566 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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c[1744,1757] [2024-11-13 23:45:15,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:45:15,591 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:45:15,626 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_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/sv-benchmarks/c/float-newlib/float_req_bl_1032d.c[1744,1757] [2024-11-13 23:45:15,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:45:15,646 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:45:15,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15 WrapperNode [2024-11-13 23:45:15,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:45:15,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:45:15,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:45:15,650 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:45:15,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,687 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 84 [2024-11-13 23:45:15,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:45:15,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:45:15,688 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:45:15,688 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:45:15,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,700 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,700 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:45:15,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:45:15,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:45:15,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:45:15,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (1/1) ... [2024-11-13 23:45:15,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:45:15,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:45:15,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:45:15,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:45:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:45:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:45:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:45:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-13 23:45:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-13 23:45:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:45:15,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:45:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-13 23:45:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-13 23:45:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:45:15,913 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:45:15,915 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:45:16,219 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-13 23:45:16,219 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:45:16,234 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:45:16,234 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-13 23:45:16,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:45:16 BoogieIcfgContainer [2024-11-13 23:45:16,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:45:16,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:45:16,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:45:16,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:45:16,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:45:15" (1/3) ... [2024-11-13 23:45:16,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b724d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:45:16, skipping insertion in model container [2024-11-13 23:45:16,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:45:15" (2/3) ... [2024-11-13 23:45:16,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b724d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:45:16, skipping insertion in model container [2024-11-13 23:45:16,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:45:16" (3/3) ... [2024-11-13 23:45:16,250 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d.c [2024-11-13 23:45:16,267 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:45:16,270 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1032d.c that has 1 procedures, 24 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-13 23:45:16,342 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:45:16,361 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;@50eeb2a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:45:16,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:45:16,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 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) [2024-11-13 23:45:16,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 23:45:16,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:16,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:16,379 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:16,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:16,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1278794603, now seen corresponding path program 1 times [2024-11-13 23:45:16,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:16,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834911691] [2024-11-13 23:45:16,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:16,401 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 [2024-11-13 23:45:16,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:16,403 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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) [2024-11-13 23:45:16,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 [2024-11-13 23:45:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:16,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 23:45:16,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:16,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:16,542 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:16,543 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:16,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834911691] [2024-11-13 23:45:16,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834911691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:16,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:16,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:45:16,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911845470] [2024-11-13 23:45:16,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:16,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:45:16,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:16,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:45:16,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:45:16,575 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-13 23:45:16,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:16,589 INFO L93 Difference]: Finished difference Result 46 states and 68 transitions. [2024-11-13 23:45:16,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:45:16,591 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2024-11-13 23:45:16,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:16,600 INFO L225 Difference]: With dead ends: 46 [2024-11-13 23:45:16,601 INFO L226 Difference]: Without dead ends: 21 [2024-11-13 23:45:16,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:45:16,607 INFO L432 NwaCegarLoop]: 28 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, 28 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 [2024-11-13 23:45:16,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:45:16,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-13 23:45:16,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-13 23:45:16,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 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) [2024-11-13 23:45:16,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-11-13 23:45:16,640 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2024-11-13 23:45:16,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:16,641 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-11-13 23:45:16,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-13 23:45:16,642 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-13 23:45:16,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 23:45:16,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:16,642 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:16,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 [2024-11-13 23:45:16,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 [2024-11-13 23:45:16,843 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:16,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:16,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1874140114, now seen corresponding path program 1 times [2024-11-13 23:45:16,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:16,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493419858] [2024-11-13 23:45:16,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:16,845 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 [2024-11-13 23:45:16,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:16,848 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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) [2024-11-13 23:45:16,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 [2024-11-13 23:45:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:17,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 23:45:17,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:17,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 23:45:17,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2024-11-13 23:45:17,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:17,369 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:17,369 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:17,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493419858] [2024-11-13 23:45:17,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493419858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:17,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:17,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 23:45:17,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482174062] [2024-11-13 23:45:17,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:17,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 23:45:17,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:17,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 23:45:17,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 23:45:17,372 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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) [2024-11-13 23:45:17,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:17,681 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2024-11-13 23:45:17,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 23:45:17,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 14 [2024-11-13 23:45:17,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:17,683 INFO L225 Difference]: With dead ends: 29 [2024-11-13 23:45:17,684 INFO L226 Difference]: Without dead ends: 20 [2024-11-13 23:45:17,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-13 23:45:17,685 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 33 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:17,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 99 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:45:17,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-13 23:45:17,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-13 23:45:17,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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) [2024-11-13 23:45:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2024-11-13 23:45:17,692 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2024-11-13 23:45:17,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:17,693 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2024-11-13 23:45:17,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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) [2024-11-13 23:45:17,694 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-11-13 23:45:17,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 23:45:17,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:45:17,695 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:45:17,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 [2024-11-13 23:45:17,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 [2024-11-13 23:45:17,898 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:45:17,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:45:17,899 INFO L85 PathProgramCache]: Analyzing trace with hash 292246487, now seen corresponding path program 1 times [2024-11-13 23:45:17,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:45:17,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322947632] [2024-11-13 23:45:17,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:45:17,900 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 [2024-11-13 23:45:17,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:45:17,902 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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) [2024-11-13 23:45:17,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 [2024-11-13 23:45:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:45:17,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 23:45:18,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:45:18,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:45:18,191 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:45:18,192 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:45:18,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322947632] [2024-11-13 23:45:18,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322947632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:45:18,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:45:18,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:45:18,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845811908] [2024-11-13 23:45:18,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:45:18,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:45:18,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:45:18,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:45:18,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:45:18,193 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-13 23:45:18,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:45:18,338 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2024-11-13 23:45:18,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 23:45:18,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2024-11-13 23:45:18,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:45:18,339 INFO L225 Difference]: With dead ends: 20 [2024-11-13 23:45:18,340 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 23:45:18,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:45:18,342 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 23:45:18,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:45:18,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 23:45:18,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 23:45:18,346 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) [2024-11-13 23:45:18,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 23:45:18,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2024-11-13 23:45:18,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:45:18,347 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 23:45:18,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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) [2024-11-13 23:45:18,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 23:45:18,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 23:45:18,351 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 23:45:18,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 [2024-11-13 23:45:18,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/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 [2024-11-13 23:45:18,555 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 23:45:18,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 23:45:18,624 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:45:18,634 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 23:45:18,635 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 23:45:18,635 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 23:45:18,640 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 23:45:18,640 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 23:45:18,640 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 23:45:18,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:45:18 BoogieIcfgContainer [2024-11-13 23:45:18,641 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:45:18,642 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:45:18,642 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:45:18,642 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:45:18,643 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:45:16" (3/4) ... [2024-11-13 23:45:18,646 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 23:45:18,654 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-13 23:45:18,654 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-13 23:45:18,654 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 23:45:18,655 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 23:45:18,740 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-13 23:45:18,741 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-13 23:45:18,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:45:18,742 INFO L158 Benchmark]: Toolchain (without parser) took 3444.29ms. Allocated memory is still 117.4MB. Free memory was 95.2MB in the beginning and 56.5MB in the end (delta: 38.7MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-13 23:45:18,743 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:18,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.51ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 83.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:45:18,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.55ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 81.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:18,744 INFO L158 Benchmark]: Boogie Preprocessor took 37.47ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:45:18,744 INFO L158 Benchmark]: RCFGBuilder took 508.27ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 67.5MB in the end (delta: 12.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:45:18,745 INFO L158 Benchmark]: TraceAbstraction took 2404.48ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 61.7MB in the end (delta: 5.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-11-13 23:45:18,745 INFO L158 Benchmark]: Witness Printer took 98.75ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 56.5MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:45:18,747 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.51ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 83.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.55ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 81.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.47ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 508.27ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 67.5MB in the end (delta: 12.8MB). There was no memory consumed. Max. memory is 16.1GB. * TraceAbstraction took 2404.48ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 61.7MB in the end (delta: 5.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Witness Printer took 98.75ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 56.5MB in the end (delta: 5.2MB). 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: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - 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: 80]: 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, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 47 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 16, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 41 ConstructedInterpolants, 4 QuantifiedInterpolants, 252 SizeOfPredicates, 8 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 27 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: 48]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-13 23:45:18,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcc3bc19-ece5-429e-b15b-9d2cd4e6202b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE