./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.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_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/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_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/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_dbc03898-67ca-411a-878a-ccf06ec11175/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 464cfb1fddddc503ce4a60ba7271f6a7a7e255070ab192dcd8706e91368aad81 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:39:15,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:39:16,022 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:39:16,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:39:16,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:39:16,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:39:16,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:39:16,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:39:16,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:39:16,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:39:16,079 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:39:16,081 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:39:16,081 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:39:16,081 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:39:16,081 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:39:16,081 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:39:16,081 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:39:16,081 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:39:16,082 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:39:16,082 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:39:16,082 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:39:16,082 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:39:16,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:39:16,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:39:16,083 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:39:16,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:39:16,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:39:16,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:39:16,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:39:16,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:39:16,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:39:16,085 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:39:16,085 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:39:16,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:39:16,087 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:39:16,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:39:16,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:39:16,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:39:16,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:39:16,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:39:16,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:39:16,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:39:16,089 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:39:16,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:39:16,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:39:16,090 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:39:16,090 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:39:16,090 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_dbc03898-67ca-411a-878a-ccf06ec11175/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 -> 464cfb1fddddc503ce4a60ba7271f6a7a7e255070ab192dcd8706e91368aad81 [2024-11-14 05:39:16,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:39:16,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:39:16,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:39:16,531 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:39:16,533 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:39:16,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c Unable to find full path for "g++" [2024-11-14 05:39:18,935 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:39:19,409 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:39:19,410 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c [2024-11-14 05:39:19,444 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/data/d8c6731e1/a6763b7680724b919fba5a4eee252c8a/FLAG2079f8a43 [2024-11-14 05:39:19,475 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/data/d8c6731e1/a6763b7680724b919fba5a4eee252c8a [2024-11-14 05:39:19,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:39:19,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:39:19,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:39:19,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:39:19,491 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:39:19,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:39:19" (1/1) ... [2024-11-14 05:39:19,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194239f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:19, skipping insertion in model container [2024-11-14 05:39:19,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:39:19" (1/1) ... [2024-11-14 05:39:19,536 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:39:19,788 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_dbc03898-67ca-411a-878a-ccf06ec11175/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[1997,2010] [2024-11-14 05:39:19,794 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_dbc03898-67ca-411a-878a-ccf06ec11175/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[2366,2379] [2024-11-14 05:39:19,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:39:19,900 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:39:19,923 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_dbc03898-67ca-411a-878a-ccf06ec11175/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[1997,2010] [2024-11-14 05:39:19,925 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_dbc03898-67ca-411a-878a-ccf06ec11175/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[2366,2379] [2024-11-14 05:39:19,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:39:20,009 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:39:20,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20 WrapperNode [2024-11-14 05:39:20,012 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:39:20,014 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:39:20,014 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:39:20,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:39:20,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (1/1) ... [2024-11-14 05:39:20,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (1/1) ... [2024-11-14 05:39:20,074 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-11-14 05:39:20,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:39:20,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:39:20,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:39:20,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:39:20,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (1/1) ... [2024-11-14 05:39:20,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (1/1) ... [2024-11-14 05:39:20,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (1/1) ... [2024-11-14 05:39:20,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (1/1) ... [2024-11-14 05:39:20,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (1/1) ... [2024-11-14 05:39:20,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (1/1) ... [2024-11-14 05:39:20,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (1/1) ... [2024-11-14 05:39:20,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (1/1) ... [2024-11-14 05:39:20,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:39:20,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:39:20,129 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:39:20,129 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:39:20,130 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (1/1) ... [2024-11-14 05:39:20,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:39:20,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:39:20,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:39:20,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:39:20,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:39:20,251 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-14 05:39:20,252 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-14 05:39:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:39:20,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:39:20,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:39:20,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:39:20,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:39:20,382 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:39:20,385 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:39:21,085 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-11-14 05:39:21,085 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:39:21,451 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:39:21,451 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 05:39:21,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:39:21 BoogieIcfgContainer [2024-11-14 05:39:21,452 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:39:21,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:39:21,458 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:39:21,466 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:39:21,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:39:19" (1/3) ... [2024-11-14 05:39:21,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75efce94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:39:21, skipping insertion in model container [2024-11-14 05:39:21,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:20" (2/3) ... [2024-11-14 05:39:21,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75efce94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:39:21, skipping insertion in model container [2024-11-14 05:39:21,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:39:21" (3/3) ... [2024-11-14 05:39:21,470 INFO L112 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_2a.c.cil.c [2024-11-14 05:39:21,492 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:39:21,494 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG square_6+soft_float_2a.c.cil.c that has 3 procedures, 45 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-14 05:39:21,578 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:39:21,593 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;@1cbc9f86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:39:21,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 05:39:21,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 38 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:39:21,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:39:21,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:21,608 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:39:21,609 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:39:21,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:21,614 INFO L85 PathProgramCache]: Analyzing trace with hash 9615155, now seen corresponding path program 1 times [2024-11-14 05:39:21,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:39:21,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816452478] [2024-11-14 05:39:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:21,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:39:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:39:21,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:39:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:39:21,774 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:39:21,809 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:39:21,811 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-14 05:39:21,817 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-14 05:39:21,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:39:21,823 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:39:21,841 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:39:21,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:39:21 BoogieIcfgContainer [2024-11-14 05:39:21,848 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:39:21,849 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:39:21,850 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:39:21,850 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:39:21,851 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:39:21" (3/4) ... [2024-11-14 05:39:21,854 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:39:21,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:39:21,859 INFO L158 Benchmark]: Toolchain (without parser) took 2376.01ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 114.1MB in the end (delta: 4.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2024-11-14 05:39:21,860 INFO L158 Benchmark]: CDTParser took 2.09ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:21,860 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.70ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 104.4MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:39:21,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.28ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 102.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:21,861 INFO L158 Benchmark]: Boogie Preprocessor took 52.94ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 101.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:21,861 INFO L158 Benchmark]: RCFGBuilder took 1323.93ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 57.7MB in the end (delta: 43.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-14 05:39:21,863 INFO L158 Benchmark]: TraceAbstraction took 390.65ms. Allocated memory is still 142.6MB. Free memory was 57.0MB in the beginning and 114.9MB in the end (delta: -57.8MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-11-14 05:39:21,864 INFO L158 Benchmark]: Witness Printer took 6.34ms. Allocated memory is still 142.6MB. Free memory was 114.9MB in the beginning and 114.1MB in the end (delta: 788.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:39:21,866 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.09ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.70ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 104.4MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.28ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 102.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.94ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 101.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1323.93ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 57.7MB in the end (delta: 43.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 390.65ms. Allocated memory is still 142.6MB. Free memory was 57.0MB in the beginning and 114.9MB in the end (delta: -57.8MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Witness Printer took 6.34ms. Allocated memory is still 142.6MB. Free memory was 114.9MB in the beginning and 114.1MB in the end (delta: 788.4kB). 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: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.399f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 05:39:21,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/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_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/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_dbc03898-67ca-411a-878a-ccf06ec11175/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 464cfb1fddddc503ce4a60ba7271f6a7a7e255070ab192dcd8706e91368aad81 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:39:25,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:39:25,380 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:39:25,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:39:25,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:39:25,472 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:39:25,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:39:25,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:39:25,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:39:25,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:39:25,480 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:39:25,481 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:39:25,481 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:39:25,481 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:39:25,481 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:39:25,481 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:39:25,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:39:25,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:39:25,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:39:25,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:39:25,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:39:25,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:39:25,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:39:25,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:39:25,482 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:39:25,482 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:39:25,482 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:39:25,483 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:39:25,483 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:39:25,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:39:25,483 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:39:25,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:39:25,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:39:25,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:39:25,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:39:25,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:39:25,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:39:25,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:39:25,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:39:25,488 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:39:25,488 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:39:25,488 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:39:25,488 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:39:25,488 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_dbc03898-67ca-411a-878a-ccf06ec11175/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 -> 464cfb1fddddc503ce4a60ba7271f6a7a7e255070ab192dcd8706e91368aad81 [2024-11-14 05:39:25,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:39:25,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:39:25,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:39:25,838 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:39:25,841 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:39:25,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c Unable to find full path for "g++" [2024-11-14 05:39:28,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:39:28,665 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:39:28,666 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c [2024-11-14 05:39:28,687 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/data/24a51c6a1/da5de65a9e01482ca79bf2c8577e1d84/FLAGb7b554fd9 [2024-11-14 05:39:28,715 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/data/24a51c6a1/da5de65a9e01482ca79bf2c8577e1d84 [2024-11-14 05:39:28,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:39:28,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:39:28,725 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:39:28,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:39:28,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:39:28,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:39:28" (1/1) ... [2024-11-14 05:39:28,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e0791c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:28, skipping insertion in model container [2024-11-14 05:39:28,740 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:39:28" (1/1) ... [2024-11-14 05:39:28,776 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:39:29,042 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_dbc03898-67ca-411a-878a-ccf06ec11175/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[1997,2010] [2024-11-14 05:39:29,053 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_dbc03898-67ca-411a-878a-ccf06ec11175/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[2366,2379] [2024-11-14 05:39:29,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:39:29,174 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:39:29,192 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_dbc03898-67ca-411a-878a-ccf06ec11175/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[1997,2010] [2024-11-14 05:39:29,194 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_dbc03898-67ca-411a-878a-ccf06ec11175/sv-benchmarks/c/combinations/square_6+soft_float_2a.c.cil.c[2366,2379] [2024-11-14 05:39:29,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:39:29,250 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:39:29,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29 WrapperNode [2024-11-14 05:39:29,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:39:29,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:39:29,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:39:29,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:39:29,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (1/1) ... [2024-11-14 05:39:29,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (1/1) ... [2024-11-14 05:39:29,333 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2024-11-14 05:39:29,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:39:29,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:39:29,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:39:29,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:39:29,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (1/1) ... [2024-11-14 05:39:29,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (1/1) ... [2024-11-14 05:39:29,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (1/1) ... [2024-11-14 05:39:29,357 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (1/1) ... [2024-11-14 05:39:29,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (1/1) ... [2024-11-14 05:39:29,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (1/1) ... [2024-11-14 05:39:29,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (1/1) ... [2024-11-14 05:39:29,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (1/1) ... [2024-11-14 05:39:29,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:39:29,408 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:39:29,408 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:39:29,408 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:39:29,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (1/1) ... [2024-11-14 05:39:29,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:39:29,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:39:29,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:39:29,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:39:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:39:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:39:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-14 05:39:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-14 05:39:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:39:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:39:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:39:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:39:29,645 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:39:29,648 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:39:32,395 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-14 05:39:32,396 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:39:32,413 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:39:32,414 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 05:39:32,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:39:32 BoogieIcfgContainer [2024-11-14 05:39:32,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:39:32,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:39:32,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:39:32,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:39:32,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:39:28" (1/3) ... [2024-11-14 05:39:32,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3050fdaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:39:32, skipping insertion in model container [2024-11-14 05:39:32,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:39:29" (2/3) ... [2024-11-14 05:39:32,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3050fdaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:39:32, skipping insertion in model container [2024-11-14 05:39:32,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:39:32" (3/3) ... [2024-11-14 05:39:32,432 INFO L112 eAbstractionObserver]: Analyzing ICFG square_6+soft_float_2a.c.cil.c [2024-11-14 05:39:32,453 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:39:32,455 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG square_6+soft_float_2a.c.cil.c that has 3 procedures, 61 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-14 05:39:32,534 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:39:32,550 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;@3a42e6bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:39:32,551 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 05:39:32,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:39:32,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:39:32,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:32,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:39:32,565 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:39:32,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:32,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1912677092, now seen corresponding path program 1 times [2024-11-14 05:39:32,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:39:32,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817786914] [2024-11-14 05:39:32,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:32,587 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 05:39:32,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:39:32,589 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/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 05:39:32,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/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 05:39:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:39:33,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:39:33,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:39:33,396 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 05:39:33,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:39:33,400 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:39:33,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817786914] [2024-11-14 05:39:33,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817786914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:39:33,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:39:33,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:39:33,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378996868] [2024-11-14 05:39:33,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:39:33,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:39:33,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:39:33,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:39:33,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:39:33,448 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:39:33,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:39:33,479 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2024-11-14 05:39:33,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:39:33,481 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-14 05:39:33,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:39:33,489 INFO L225 Difference]: With dead ends: 117 [2024-11-14 05:39:33,490 INFO L226 Difference]: Without dead ends: 52 [2024-11-14 05:39:33,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:39:33,497 INFO L432 NwaCegarLoop]: 82 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, 82 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 05:39:33,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:39:33,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-14 05:39:33,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-14 05:39:33,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 05:39:33,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2024-11-14 05:39:33,543 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2024-11-14 05:39:33,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:39:33,544 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2024-11-14 05:39:33,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:39:33,544 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2024-11-14 05:39:33,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 05:39:33,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:33,545 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:39:33,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/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 05:39:33,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/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 05:39:33,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:39:33,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:33,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1912736674, now seen corresponding path program 1 times [2024-11-14 05:39:33,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:39:33,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356203599] [2024-11-14 05:39:33,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:33,748 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 05:39:33,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:39:33,754 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/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 05:39:33,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc03898-67ca-411a-878a-ccf06ec11175/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