./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i --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_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/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_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/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_73799cec-e74d-4b8f-b603-cbfb28218d42/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 2f7348383fbfe60948d51b6a2558ece637bf3e6137abb8f292fdbb0029f6276f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:26:23,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:26:23,284 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:26:23,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:26:23,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:26:23,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:26:23,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:26:23,336 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:26:23,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:26:23,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:26:23,338 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:26:23,338 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:26:23,338 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:26:23,338 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:26:23,339 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:26:23,340 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:26:23,340 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:26:23,340 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:26:23,340 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:26:23,341 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:26:23,341 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:26:23,341 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:26:23,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:26:23,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:26:23,341 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:26:23,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:26:23,342 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:26:23,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:26:23,342 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:26:23,342 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:26:23,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:26:23,342 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:26:23,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:26:23,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:26:23,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:26:23,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:26:23,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:26:23,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:26:23,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:26:23,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:26:23,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:26:23,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:26:23,343 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:26:23,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:26:23,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:26:23,345 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:26:23,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:26:23,345 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_73799cec-e74d-4b8f-b603-cbfb28218d42/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 -> 2f7348383fbfe60948d51b6a2558ece637bf3e6137abb8f292fdbb0029f6276f [2024-11-14 04:26:23,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:26:23,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:26:23,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:26:23,689 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:26:23,689 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:26:23,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i Unable to find full path for "g++" [2024-11-14 04:26:25,851 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:26:26,139 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:26:26,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i [2024-11-14 04:26:26,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/data/c8ad3d5f5/58e28fdf67944c15ae33a8ca065c3577/FLAG17a765cb6 [2024-11-14 04:26:26,161 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/data/c8ad3d5f5/58e28fdf67944c15ae33a8ca065c3577 [2024-11-14 04:26:26,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:26:26,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:26:26,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:26:26,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:26:26,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:26:26,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb59860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26, skipping insertion in model container [2024-11-14 04:26:26,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,191 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:26:26,353 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_73799cec-e74d-4b8f-b603-cbfb28218d42/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i[915,928] [2024-11-14 04:26:26,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:26:26,399 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:26:26,410 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_73799cec-e74d-4b8f-b603-cbfb28218d42/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i[915,928] [2024-11-14 04:26:26,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:26:26,451 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:26:26,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26 WrapperNode [2024-11-14 04:26:26,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:26:26,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:26:26,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:26:26,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:26:26,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,492 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 92 [2024-11-14 04:26:26,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:26:26,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:26:26,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:26:26,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:26:26,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:26:26,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:26:26,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:26:26,538 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:26:26,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (1/1) ... [2024-11-14 04:26:26,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:26:26,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:26:26,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:26:26,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:26:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:26:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:26:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:26:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:26:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:26:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:26:26,709 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:26:26,711 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:26:27,073 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-14 04:26:27,073 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:26:27,242 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:26:27,242 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:26:27,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:26:27 BoogieIcfgContainer [2024-11-14 04:26:27,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:26:27,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:26:27,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:26:27,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:26:27,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:26:26" (1/3) ... [2024-11-14 04:26:27,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b1d973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:26:27, skipping insertion in model container [2024-11-14 04:26:27,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:26" (2/3) ... [2024-11-14 04:26:27,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b1d973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:26:27, skipping insertion in model container [2024-11-14 04:26:27,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:26:27" (3/3) ... [2024-11-14 04:26:27,254 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-0.i [2024-11-14 04:26:27,271 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:26:27,273 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-0.i that has 2 procedures, 24 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:26:27,333 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:26:27,349 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;@6d51b1db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:26:27,350 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:26:27,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:26:27,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 04:26:27,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:27,365 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:27,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:26:27,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash -336393505, now seen corresponding path program 1 times [2024-11-14 04:26:27,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:26:27,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818387189] [2024-11-14 04:26:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:27,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:26:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:26:27,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:26:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:26:27,769 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:26:27,778 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:26:27,779 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:26:27,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:26:27,787 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:26:27,826 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:26:27,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:26:27 BoogieIcfgContainer [2024-11-14 04:26:27,830 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:26:27,830 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:26:27,831 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:26:27,831 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:26:27,831 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:26:27" (3/4) ... [2024-11-14 04:26:27,833 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:26:27,834 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:26:27,835 INFO L158 Benchmark]: Toolchain (without parser) took 1670.03ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 84.3MB in the end (delta: 6.7MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2024-11-14 04:26:27,836 INFO L158 Benchmark]: CDTParser took 1.17ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:26:27,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.52ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 78.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:26:27,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.78ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:26:27,837 INFO L158 Benchmark]: Boogie Preprocessor took 43.80ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:26:27,837 INFO L158 Benchmark]: RCFGBuilder took 705.12ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 55.4MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:26:27,838 INFO L158 Benchmark]: TraceAbstraction took 584.12ms. Allocated memory is still 117.4MB. Free memory was 55.0MB in the beginning and 85.1MB in the end (delta: -30.1MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-11-14 04:26:27,838 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 117.4MB. Free memory was 84.4MB in the beginning and 84.3MB in the end (delta: 14.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:26:27,840 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.52ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 78.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.78ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.80ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 705.12ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 55.4MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 584.12ms. Allocated memory is still 117.4MB. Free memory was 55.0MB in the beginning and 85.1MB in the end (delta: -30.1MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 117.4MB. Free memory was 84.4MB in the beginning and 84.3MB in the end (delta: 14.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: 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 to_int at line 50, overapproximation of someBinaryDOUBLEComparisonOperation at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 25; [L23] unsigned char var_1_2 = 1; [L24] signed long int var_1_3 = 128; [L25] signed long int var_1_4 = 15; [L26] signed long int var_1_5 = 5; [L27] unsigned char var_1_9 = 1; [L28] unsigned char var_1_10 = 100; [L29] unsigned char var_1_12 = 1; [L30] unsigned short int var_1_13 = 5; [L31] signed long int last_1_var_1_5 = 5; [L32] unsigned char last_1_var_1_10 = 100; [L33] unsigned short int last_1_var_1_13 = 5; [L95] isInitial = 1 [L96] FCALL initially() [L97] COND TRUE 1 [L98] CALL updateLastVariables() [L86] last_1_var_1_5 = var_1_5 [L87] last_1_var_1_10 = var_1_10 [L88] last_1_var_1_13 = var_1_13 [L98] RET updateLastVariables() [L99] CALL updateVariables() [L69] var_1_2 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_3=128, var_1_4=15, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_3=128, var_1_4=15, var_1_5=5, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=128, var_1_4=15, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=128, var_1_4=15, var_1_5=5, var_1_9=1] [L72] var_1_3 = __VERIFIER_nondet_long() [L73] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=15, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=15, var_1_5=5, var_1_9=1] [L74] CALL assume_abort_if_not(var_1_3 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=15, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_3 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=15, var_1_5=5, var_1_9=1] [L75] var_1_4 = __VERIFIER_nondet_long() [L76] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L77] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L78] var_1_9 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5] [L80] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L81] var_1_12 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L83] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=254, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=254, var_1_13=5, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=5, var_1_9=1] [L99] RET updateVariables() [L100] CALL step() [L37] COND TRUE \read(var_1_9) [L38] COND TRUE (var_1_4 * (var_1_3 - 5.3)) <= last_1_var_1_5 [L39] var_1_13 = last_1_var_1_10 [L42] COND FALSE !((last_1_var_1_13 + last_1_var_1_13) < last_1_var_1_13) [L47] COND FALSE !(! var_1_2) [L50] var_1_1 = ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3))) [L52] COND FALSE !((var_1_3 + (var_1_4 + var_1_1)) != var_1_1) [L65] var_1_5 = var_1_3 [L100] RET step() [L101] CALL, EXPR property() [L91-L92] return ((((! var_1_2) ? (var_1_1 == ((signed long int) (var_1_3 - var_1_4))) : (var_1_1 == ((signed long int) ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3)))))) && (((var_1_3 + (var_1_4 + var_1_1)) != var_1_1) ? (var_1_2 ? (((- var_1_13) <= var_1_10) ? (var_1_9 ? (var_1_5 == ((signed long int) var_1_4)) : 1) : (var_1_5 == ((signed long int) var_1_3))) : (var_1_5 == ((signed long int) var_1_3))) : (var_1_5 == ((signed long int) var_1_3)))) && (((last_1_var_1_13 + last_1_var_1_13) < last_1_var_1_13) ? ((last_1_var_1_13 > last_1_var_1_13) ? (var_1_10 == ((unsigned char) var_1_12)) : 1) : 1)) && (var_1_9 ? (((var_1_4 * (var_1_3 - 5.3)) <= last_1_var_1_5) ? (var_1_13 == ((unsigned short int) last_1_var_1_10)) : 1) : 1) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=254, var_1_13=100, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_9=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=5, var_1_10=100, var_1_12=254, var_1_13=100, var_1_1=0, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 10, 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=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 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 04:26:27,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/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_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/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_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/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_73799cec-e74d-4b8f-b603-cbfb28218d42/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 2f7348383fbfe60948d51b6a2558ece637bf3e6137abb8f292fdbb0029f6276f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:26:30,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:26:30,899 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 04:26:30,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:26:30,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:26:30,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:26:30,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:26:30,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:26:30,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:26:30,961 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:26:30,962 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:26:30,962 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:26:30,962 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:26:30,962 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:26:30,962 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:26:30,962 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:26:30,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:26:30,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:26:30,963 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:26:30,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:26:30,963 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:26:30,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:26:30,964 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:26:30,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:26:30,964 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:26:30,964 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:26:30,964 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:26:30,964 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:26:30,964 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:26:30,964 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:26:30,964 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:26:30,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:26:30,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:26:30,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:26:30,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:26:30,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:26:30,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:26:30,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:26:30,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:26:30,965 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:26:30,966 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:26:30,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:26:30,966 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:26:30,969 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_73799cec-e74d-4b8f-b603-cbfb28218d42/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 -> 2f7348383fbfe60948d51b6a2558ece637bf3e6137abb8f292fdbb0029f6276f [2024-11-14 04:26:31,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:26:31,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:26:31,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:26:31,391 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:26:31,392 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:26:31,393 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i Unable to find full path for "g++" [2024-11-14 04:26:33,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:26:33,565 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:26:33,584 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i [2024-11-14 04:26:33,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/data/a0c8f7fdf/59648db58a30489fbf12eff8aa0fbcb5/FLAGa1b46ab93 [2024-11-14 04:26:33,638 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/data/a0c8f7fdf/59648db58a30489fbf12eff8aa0fbcb5 [2024-11-14 04:26:33,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:26:33,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:26:33,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:26:33,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:26:33,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:26:33,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:26:33" (1/1) ... [2024-11-14 04:26:33,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc32769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:33, skipping insertion in model container [2024-11-14 04:26:33,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:26:33" (1/1) ... [2024-11-14 04:26:33,682 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:26:33,882 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_73799cec-e74d-4b8f-b603-cbfb28218d42/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i[915,928] [2024-11-14 04:26:33,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:26:33,972 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:26:33,985 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_73799cec-e74d-4b8f-b603-cbfb28218d42/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-0.i[915,928] [2024-11-14 04:26:34,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:26:34,042 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:26:34,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34 WrapperNode [2024-11-14 04:26:34,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:26:34,045 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:26:34,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:26:34,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:26:34,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (1/1) ... [2024-11-14 04:26:34,063 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (1/1) ... [2024-11-14 04:26:34,087 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-14 04:26:34,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:26:34,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:26:34,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:26:34,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:26:34,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (1/1) ... [2024-11-14 04:26:34,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (1/1) ... [2024-11-14 04:26:34,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (1/1) ... [2024-11-14 04:26:34,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (1/1) ... [2024-11-14 04:26:34,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (1/1) ... [2024-11-14 04:26:34,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (1/1) ... [2024-11-14 04:26:34,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (1/1) ... [2024-11-14 04:26:34,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (1/1) ... [2024-11-14 04:26:34,141 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:26:34,142 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:26:34,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:26:34,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:26:34,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (1/1) ... [2024-11-14 04:26:34,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:26:34,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:26:34,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:26:34,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:26:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:26:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:26:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:26:34,221 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:26:34,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:26:34,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:26:34,301 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:26:34,302 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:26:41,274 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-14 04:26:41,274 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:26:41,287 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:26:41,288 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:26:41,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:26:41 BoogieIcfgContainer [2024-11-14 04:26:41,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:26:41,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:26:41,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:26:41,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:26:41,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:26:33" (1/3) ... [2024-11-14 04:26:41,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd1d59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:26:41, skipping insertion in model container [2024-11-14 04:26:41,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:26:34" (2/3) ... [2024-11-14 04:26:41,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd1d59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:26:41, skipping insertion in model container [2024-11-14 04:26:41,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:26:41" (3/3) ... [2024-11-14 04:26:41,300 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-0.i [2024-11-14 04:26:41,319 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:26:41,320 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-0.i that has 2 procedures, 43 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:26:41,391 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:26:41,412 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;@22946867, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:26:41,413 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:26:41,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:26:41,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 04:26:41,430 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:41,432 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:41,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:26:41,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:41,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1282495685, now seen corresponding path program 1 times [2024-11-14 04:26:41,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:26:41,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585305834] [2024-11-14 04:26:41,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:41,459 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 04:26:41,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:26:41,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/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 04:26:41,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/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 04:26:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:41,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:26:42,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:26:42,065 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-14 04:26:42,065 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:26:42,066 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:26:42,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585305834] [2024-11-14 04:26:42,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585305834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:26:42,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:26:42,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:26:42,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168878729] [2024-11-14 04:26:42,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:26:42,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:26:42,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:26:42,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:26:42,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:26:42,126 INFO L87 Difference]: Start difference. First operand has 43 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-14 04:26:42,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:26:42,162 INFO L93 Difference]: Finished difference Result 78 states and 130 transitions. [2024-11-14 04:26:42,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:26:42,165 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 68 [2024-11-14 04:26:42,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:26:42,173 INFO L225 Difference]: With dead ends: 78 [2024-11-14 04:26:42,174 INFO L226 Difference]: Without dead ends: 38 [2024-11-14 04:26:42,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 67 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 04:26:42,185 INFO L432 NwaCegarLoop]: 53 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, 53 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 04:26:42,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:26:42,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-14 04:26:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-14 04:26:42,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 04:26:42,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2024-11-14 04:26:42,245 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 68 [2024-11-14 04:26:42,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:26:42,247 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2024-11-14 04:26:42,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-14 04:26:42,247 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-11-14 04:26:42,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 04:26:42,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:42,251 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:42,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/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 04:26:42,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/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 04:26:42,453 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:26:42,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:42,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1987650043, now seen corresponding path program 1 times [2024-11-14 04:26:42,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:26:42,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488892408] [2024-11-14 04:26:42,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:42,455 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 04:26:42,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:26:42,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/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 04:26:42,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/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 04:26:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:26:42,950 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:26:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:26:43,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2024-11-14 04:26:43,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2035419132] [2024-11-14 04:26:43,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:43,356 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:26:43,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:26:43,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:26:43,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73799cec-e74d-4b8f-b603-cbfb28218d42/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 04:26:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:43,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 04:26:43,939 INFO L278 TraceCheckSpWp]: Computing forward predicates...