./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.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_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/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_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/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_10ac82f4-b368-422a-920c-80926835cb96/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 58ac0589d73c462785a1e0525d17b3b74f7db66a56b5cb7df3664daf67476919 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:13:34,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:13:35,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:13:35,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:13:35,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:13:35,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:13:35,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:13:35,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:13:35,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:13:35,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:13:35,051 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:13:35,051 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:13:35,051 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:13:35,051 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:13:35,051 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:13:35,051 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:13:35,051 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:13:35,051 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:13:35,051 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:13:35,052 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:13:35,052 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:13:35,052 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:13:35,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:13:35,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:13:35,052 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:13:35,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:13:35,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:13:35,053 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:13:35,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:13:35,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:13:35,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:13:35,053 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:13:35,053 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:13:35,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:13:35,053 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:13:35,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:13:35,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:13:35,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:13:35,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:13:35,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:13:35,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:13:35,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:13:35,054 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:13:35,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:13:35,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:13:35,054 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:13:35,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:13:35,055 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_10ac82f4-b368-422a-920c-80926835cb96/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 -> 58ac0589d73c462785a1e0525d17b3b74f7db66a56b5cb7df3664daf67476919 [2024-11-14 05:13:35,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:13:35,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:13:35,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:13:35,350 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:13:35,351 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:13:35,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c Unable to find full path for "g++" [2024-11-14 05:13:37,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:13:37,530 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:13:37,531 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2024-11-14 05:13:37,542 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/data/cfd01ee0b/f370dd993a464da992980014c9a75eac/FLAG250b9e976 [2024-11-14 05:13:37,779 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/data/cfd01ee0b/f370dd993a464da992980014c9a75eac [2024-11-14 05:13:37,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:13:37,783 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:13:37,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:13:37,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:13:37,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:13:37,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:13:37" (1/1) ... [2024-11-14 05:13:37,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e1c384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:37, skipping insertion in model container [2024-11-14 05:13:37,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:13:37" (1/1) ... [2024-11-14 05:13:37,813 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:13:38,004 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_10ac82f4-b368-422a-920c-80926835cb96/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2024-11-14 05:13:38,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:13:38,016 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:13:38,086 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_10ac82f4-b368-422a-920c-80926835cb96/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2024-11-14 05:13:38,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:13:38,112 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:13:38,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38 WrapperNode [2024-11-14 05:13:38,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:13:38,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:13:38,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:13:38,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:13:38,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (1/1) ... [2024-11-14 05:13:38,131 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (1/1) ... [2024-11-14 05:13:38,176 INFO L138 Inliner]: procedures = 18, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 319 [2024-11-14 05:13:38,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:13:38,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:13:38,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:13:38,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:13:38,184 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (1/1) ... [2024-11-14 05:13:38,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (1/1) ... [2024-11-14 05:13:38,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (1/1) ... [2024-11-14 05:13:38,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (1/1) ... [2024-11-14 05:13:38,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (1/1) ... [2024-11-14 05:13:38,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (1/1) ... [2024-11-14 05:13:38,226 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (1/1) ... [2024-11-14 05:13:38,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (1/1) ... [2024-11-14 05:13:38,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:13:38,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:13:38,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:13:38,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:13:38,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (1/1) ... [2024-11-14 05:13:38,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:13:38,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:13:38,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:13:38,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:13:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:13:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:13:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:13:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 05:13:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:13:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 05:13:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:13:38,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:13:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:13:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:13:38,431 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:13:38,433 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:13:38,939 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2024-11-14 05:13:38,939 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:13:39,235 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:13:39,236 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-14 05:13:39,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:13:39 BoogieIcfgContainer [2024-11-14 05:13:39,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:13:39,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:13:39,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:13:39,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:13:39,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:13:37" (1/3) ... [2024-11-14 05:13:39,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40884d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:13:39, skipping insertion in model container [2024-11-14 05:13:39,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:38" (2/3) ... [2024-11-14 05:13:39,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40884d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:13:39, skipping insertion in model container [2024-11-14 05:13:39,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:13:39" (3/3) ... [2024-11-14 05:13:39,248 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2024-11-14 05:13:39,265 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:13:39,267 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0981.c that has 1 procedures, 35 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-11-14 05:13:39,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:13:39,344 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;@2683d7ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:13:39,344 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:13:39,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.7272727272727273) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:13:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 05:13:39,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:13:39,354 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:13:39,355 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:13:39,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:13:39,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1942623932, now seen corresponding path program 1 times [2024-11-14 05:13:39,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:13:39,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920456859] [2024-11-14 05:13:39,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:13:39,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:13:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:13:39,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:13:39,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:13:39,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920456859] [2024-11-14 05:13:39,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920456859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:13:39,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:13:39,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:13:39,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796386665] [2024-11-14 05:13:39,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:13:39,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:13:39,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:13:39,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:13:39,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:13:39,612 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.7272727272727273) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:13:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:13:39,681 INFO L93 Difference]: Finished difference Result 69 states and 113 transitions. [2024-11-14 05:13:39,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:13:39,684 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-14 05:13:39,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:13:39,691 INFO L225 Difference]: With dead ends: 69 [2024-11-14 05:13:39,691 INFO L226 Difference]: Without dead ends: 33 [2024-11-14 05:13:39,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:13:39,701 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:13:39,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:13:39,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-14 05:13:39,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-14 05:13:39,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:13:39,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2024-11-14 05:13:39,735 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 10 [2024-11-14 05:13:39,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:13:39,736 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-14 05:13:39,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:13:39,737 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-11-14 05:13:39,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:13:39,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:13:39,738 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:13:39,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:13:39,739 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:13:39,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:13:39,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1901161700, now seen corresponding path program 1 times [2024-11-14 05:13:39,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:13:39,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481095802] [2024-11-14 05:13:39,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:13:39,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:13:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:13:39,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:13:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:13:40,135 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:13:40,136 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:13:40,137 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:13:40,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:13:40,142 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-14 05:13:40,169 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:13:40,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:13:40 BoogieIcfgContainer [2024-11-14 05:13:40,175 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:13:40,176 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:13:40,177 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:13:40,177 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:13:40,178 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:13:39" (3/4) ... [2024-11-14 05:13:40,180 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:13:40,181 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:13:40,182 INFO L158 Benchmark]: Toolchain (without parser) took 2398.60ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.9MB in the beginning and 306.5MB in the end (delta: -212.6MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2024-11-14 05:13:40,182 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:13:40,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.78ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 80.2MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:13:40,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.94ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 77.6MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:13:40,186 INFO L158 Benchmark]: Boogie Preprocessor took 57.84ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:13:40,186 INFO L158 Benchmark]: RCFGBuilder took 1000.67ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 67.2MB in the end (delta: 8.3MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2024-11-14 05:13:40,187 INFO L158 Benchmark]: TraceAbstraction took 937.40ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 66.6MB in the beginning and 306.6MB in the end (delta: -239.9MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2024-11-14 05:13:40,187 INFO L158 Benchmark]: Witness Printer took 4.86ms. Allocated memory is still 352.3MB. Free memory was 306.6MB in the beginning and 306.5MB in the end (delta: 11.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:13:40,191 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.78ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 80.2MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.94ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 77.6MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.84ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 75.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1000.67ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 67.2MB in the end (delta: 8.3MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * TraceAbstraction took 937.40ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 66.6MB in the beginning and 306.6MB in the end (delta: -239.9MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 4.86ms. Allocated memory is still 352.3MB. Free memory was 306.6MB in the beginning and 306.5MB in the end (delta: 11.7kB). 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: 188]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 183, overapproximation of someBinaryArithmeticDOUBLEoperation at line 133, overapproximation of bitwiseOr at line 170, overapproximation of bitwiseOr at line 132. Possible FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; [L183] double x = 1.0 / 0.0; [L184] CALL, EXPR __ieee754_log10(x) [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ivln10_log10=108573620475812954167/250000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log10=18014398509481984, two54_log=18014398509481984, zero=0, zero_log10=0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, hx=0, ivln10_log10=108573620475812954167/250000000000000000000, k=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=-4294967296, two54_log10=18014398509481984, two54_log=18014398509481984, x=18014398509481996, zero=0, zero_log10=0] [L131] COND TRUE hx < 0x00100000 [L132] EXPR (hx & 0x7fffffff) | lx VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, hx=0, ivln10_log10=108573620475812954167/250000000000000000000, k=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log10=18014398509481984, two54_log=18014398509481984, x=18014398509481996, zero=0, zero_log10=0] [L132] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L133] return -two54_log10 / zero_log10; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, hx=0, ivln10_log10=108573620475812954167/250000000000000000000, k=0, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log10=18014398509481984, two54_log=18014398509481984, x=18014398509481996, zero=0, zero_log10=0] [L184] RET, EXPR __ieee754_log10(x) [L184] double res = __ieee754_log10(x); [L187] CALL, EXPR isinf_double(res) [L162] __int32_t hx, lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ivln10_log10=108573620475812954167/250000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log10=18014398509481984, two54_log=18014398509481984, x=18014398509481995, zero=0, zero_log10=0] [L164] ieee_double_shape_type ew_u; [L165] ew_u.value = (x) [L166] EXPR ew_u.parts.msw [L166] (hx) = ew_u.parts.msw [L167] EXPR ew_u.parts.lsw [L167] (lx) = ew_u.parts.lsw [L169] hx &= 0x7fffffff [L170] EXPR lx | (-lx) [L170] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L171] hx = 0x7ff00000 - hx [L172] EXPR hx | (-hx) [L172] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L187] RET, EXPR isinf_double(res) [L187] COND TRUE !isinf_double(res) [L188] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ivln10_log10=108573620475812954167/250000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log10=18014398509481984, two54_log=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 33 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 05:13:40,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/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_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/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_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/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_10ac82f4-b368-422a-920c-80926835cb96/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 58ac0589d73c462785a1e0525d17b3b74f7db66a56b5cb7df3664daf67476919 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:13:42,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:13:42,858 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:13:42,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:13:42,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:13:42,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:13:42,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:13:42,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:13:42,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:13:42,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:13:42,914 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:13:42,915 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:13:42,915 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:13:42,915 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:13:42,915 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:13:42,917 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:13:42,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:13:42,918 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:13:42,919 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:13:42,919 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:13:42,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:13:42,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:13:42,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:13:42,919 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:13:42,919 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:13:42,919 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:13:42,919 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:13:42,920 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:13:42,920 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:13:42,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:13:42,920 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:13:42,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:13:42,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:13:42,920 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:13:42,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:13:42,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:13:42,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:13:42,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:13:42,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:13:42,921 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:13:42,921 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:13:42,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:13:42,921 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:13:42,921 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_10ac82f4-b368-422a-920c-80926835cb96/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 -> 58ac0589d73c462785a1e0525d17b3b74f7db66a56b5cb7df3664daf67476919 [2024-11-14 05:13:43,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:13:43,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:13:43,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:13:43,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:13:43,259 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:13:43,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c Unable to find full path for "g++" [2024-11-14 05:13:45,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:13:45,363 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:13:45,364 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2024-11-14 05:13:45,388 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/data/c66ef0dc6/1cd9b7d4faf6435798b30873923fa895/FLAG774bf2c79 [2024-11-14 05:13:45,429 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/data/c66ef0dc6/1cd9b7d4faf6435798b30873923fa895 [2024-11-14 05:13:45,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:13:45,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:13:45,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:13:45,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:13:45,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:13:45,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54950c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45, skipping insertion in model container [2024-11-14 05:13:45,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:13:45,700 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_10ac82f4-b368-422a-920c-80926835cb96/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2024-11-14 05:13:45,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:13:45,726 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:13:45,767 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_10ac82f4-b368-422a-920c-80926835cb96/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2024-11-14 05:13:45,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:13:45,793 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:13:45,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45 WrapperNode [2024-11-14 05:13:45,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:13:45,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:13:45,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:13:45,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:13:45,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,866 INFO L138 Inliner]: procedures = 21, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 234 [2024-11-14 05:13:45,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:13:45,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:13:45,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:13:45,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:13:45,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,903 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:13:45,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:13:45,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:13:45,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:13:45,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (1/1) ... [2024-11-14 05:13:45,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:13:45,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:13:45,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:13:45,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:13:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:13:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-14 05:13:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-14 05:13:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:13:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:13:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 05:13:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:13:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:13:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 05:13:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:13:46,109 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:13:46,111 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:14:17,601 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-14 05:14:17,601 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:14:17,613 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:14:17,613 INFO L316 CfgBuilder]: Removed 14 assume(true) statements. [2024-11-14 05:14:17,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:14:17 BoogieIcfgContainer [2024-11-14 05:14:17,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:14:17,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:14:17,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:14:17,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:14:17,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:13:45" (1/3) ... [2024-11-14 05:14:17,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702dfbc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:14:17, skipping insertion in model container [2024-11-14 05:14:17,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:13:45" (2/3) ... [2024-11-14 05:14:17,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702dfbc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:14:17, skipping insertion in model container [2024-11-14 05:14:17,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:14:17" (3/3) ... [2024-11-14 05:14:17,626 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2024-11-14 05:14:17,641 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:14:17,643 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0981.c that has 1 procedures, 45 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-11-14 05:14:17,702 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:14:17,719 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;@51eb68e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:14:17,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:14:17,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:14:17,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:14:17,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:14:17,730 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:14:17,730 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:14:17,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:14:17,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1110941963, now seen corresponding path program 1 times [2024-11-14 05:14:17,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:14:17,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513222528] [2024-11-14 05:14:17,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:17,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:14:17,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:14:17,754 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:14:17,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 05:14:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:18,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:14:18,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:14:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:14:18,715 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:14:18,715 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:14:18,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513222528] [2024-11-14 05:14:18,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513222528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:14:18,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:14:18,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:14:18,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489558471] [2024-11-14 05:14:18,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:14:18,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:14:18,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:14:18,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:14:18,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:14:18,746 INFO L87 Difference]: Start difference. First operand has 45 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 44 states have internal predecessors, (74), 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) [2024-11-14 05:14:18,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:14:18,764 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2024-11-14 05:14:18,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:14:18,766 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 [2024-11-14 05:14:18,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:14:18,771 INFO L225 Difference]: With dead ends: 88 [2024-11-14 05:14:18,772 INFO L226 Difference]: Without dead ends: 42 [2024-11-14 05:14:18,774 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 [2024-11-14 05:14:18,777 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:14:18,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:14:18,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-14 05:14:18,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-14 05:14:18,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 41 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:14:18,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2024-11-14 05:14:18,816 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2024-11-14 05:14:18,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:14:18,816 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2024-11-14 05:14:18,817 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) [2024-11-14 05:14:18,817 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2024-11-14 05:14:18,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:14:18,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:14:18,818 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:14:18,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 05:14:19,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:14:19,019 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:14:19,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:14:19,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1512362540, now seen corresponding path program 1 times [2024-11-14 05:14:19,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:14:19,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679106715] [2024-11-14 05:14:19,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:19,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:14:19,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:14:19,022 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:14:19,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 05:14:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:20,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:14:20,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:14:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:14:20,801 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:14:20,801 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:14:20,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679106715] [2024-11-14 05:14:20,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679106715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:14:20,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:14:20,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:14:20,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665012596] [2024-11-14 05:14:20,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:14:20,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:14:20,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:14:20,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:14:20,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:14:20,804 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-11-14 05:14:21,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:14:21,294 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2024-11-14 05:14:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:14:21,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 [2024-11-14 05:14:21,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:14:21,296 INFO L225 Difference]: With dead ends: 51 [2024-11-14 05:14:21,296 INFO L226 Difference]: Without dead ends: 15 [2024-11-14 05:14:21,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:14:21,297 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:14:21,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 25 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:14:21,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-14 05:14:21,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-14 05:14:21,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 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) [2024-11-14 05:14:21,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2024-11-14 05:14:21,300 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2024-11-14 05:14:21,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:14:21,301 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2024-11-14 05:14:21,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2024-11-14 05:14:21,301 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2024-11-14 05:14:21,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:14:21,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:14:21,301 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:14:21,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 05:14:21,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:14:21,502 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:14:21,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:14:21,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1256367149, now seen corresponding path program 1 times [2024-11-14 05:14:21,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:14:21,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245337789] [2024-11-14 05:14:21,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:14:21,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:14:21,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:14:21,505 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:14:21,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 05:14:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:14:21,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 05:14:21,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:14:24,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:14:24,779 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:14:24,779 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:14:24,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245337789] [2024-11-14 05:14:24,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245337789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:14:24,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:14:24,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 05:14:24,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967278351] [2024-11-14 05:14:24,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:14:24,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:14:24,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:14:24,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:14:24,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:14:24,781 INFO L87 Difference]: Start difference. First operand 15 states and 14 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) [2024-11-14 05:14:27,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:14:27,368 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2024-11-14 05:14:27,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 05:14:27,368 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 [2024-11-14 05:14:27,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:14:27,369 INFO L225 Difference]: With dead ends: 15 [2024-11-14 05:14:27,369 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 05:14:27,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-14 05:14:27,370 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:14:27,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 29 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 05:14:27,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 05:14:27,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 05:14:27,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:14:27,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 05:14:27,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-14 05:14:27,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:14:27,372 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 05:14:27,372 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) [2024-11-14 05:14:27,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 05:14:27,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 05:14:27,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:14:27,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 05:14:27,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:14:27,580 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-14 05:14:27,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 05:14:28,181 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:14:28,192 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-14 05:14:28,192 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:14:28,193 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 05:14:28,196 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 05:14:28,197 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-14 05:14:28,197 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-14 05:14:28,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:14:28 BoogieIcfgContainer [2024-11-14 05:14:28,198 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:14:28,199 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:14:28,199 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:14:28,199 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:14:28,200 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:14:17" (3/4) ... [2024-11-14 05:14:28,202 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 05:14:28,210 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-14 05:14:28,210 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-14 05:14:28,211 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 05:14:28,211 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 05:14:28,293 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:14:28,294 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 05:14:28,294 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:14:28,295 INFO L158 Benchmark]: Toolchain (without parser) took 42852.36ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 69.6MB in the end (delta: 22.5MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2024-11-14 05:14:28,295 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 83.7MB in the end (delta: 54.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:14:28,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.08ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 77.5MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:14:28,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.47ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 75.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:14:28,296 INFO L158 Benchmark]: Boogie Preprocessor took 62.94ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 73.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:14:28,296 INFO L158 Benchmark]: RCFGBuilder took 31683.54ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 52.2MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:14:28,297 INFO L158 Benchmark]: TraceAbstraction took 10581.02ms. Allocated memory is still 117.4MB. Free memory was 51.6MB in the beginning and 75.8MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:14:28,297 INFO L158 Benchmark]: Witness Printer took 95.12ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 69.6MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:14:28,299 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 83.7MB in the end (delta: 54.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.08ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 77.5MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.47ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 75.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 62.94ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 73.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 31683.54ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 52.2MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 10581.02ms. Allocated memory is still 117.4MB. Free memory was 51.6MB in the beginning and 75.8MB in the end (delta: -24.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 95.12ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 69.6MB in the end (delta: 6.2MB). 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: 188]: 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, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 75 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 1.8s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 8 QuantifiedInterpolants, 379 SizeOfPredicates, 7 NumberOfNonLiveVariables, 194 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: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-14 05:14:28,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ac82f4-b368-422a-920c-80926835cb96/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