./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-96.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-96.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire --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 5874a29868093144df67f3d9c006a000f3592329fa7366a6687deaedd0fc5b25 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:14:24,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:14:24,336 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:14:24,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:14:24,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:14:24,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:14:24,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:14:24,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:14:24,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:14:24,394 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:14:24,395 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:14:24,396 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:14:24,396 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:14:24,398 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:14:24,398 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:14:24,399 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:14:24,399 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:14:24,400 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:14:24,400 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:14:24,400 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:14:24,401 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:14:24,401 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:14:24,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:14:24,403 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:14:24,403 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:14:24,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:14:24,404 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:14:24,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:14:24,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:14:24,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:14:24,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:14:24,407 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:14:24,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:14:24,407 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:14:24,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:14:24,408 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:14:24,408 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:14:24,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:24,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:14:24,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:14:24,409 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:14:24,410 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:14:24,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:14:24,410 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:14:24,411 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:14:24,411 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:14:24,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:14:24,411 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5874a29868093144df67f3d9c006a000f3592329fa7366a6687deaedd0fc5b25 [2023-11-23 21:14:24,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:14:24,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:14:24,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:14:24,711 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:14:24,712 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:14:24,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-96.i [2023-11-23 21:14:27,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:14:28,158 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:14:28,159 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-96.i [2023-11-23 21:14:28,170 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/data/f4777324c/ae255c333ab24d208016ebdb702accb7/FLAGeef156f5a [2023-11-23 21:14:28,189 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/data/f4777324c/ae255c333ab24d208016ebdb702accb7 [2023-11-23 21:14:28,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:14:28,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:14:28,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:28,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:14:28,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:14:28,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b302bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28, skipping insertion in model container [2023-11-23 21:14:28,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,257 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:14:28,405 WARN L240 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_ca06e5a4-6989-405f-b425-8f644542019b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-96.i[917,930] [2023-11-23 21:14:28,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:28,465 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:14:28,478 WARN L240 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_ca06e5a4-6989-405f-b425-8f644542019b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-96.i[917,930] [2023-11-23 21:14:28,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:28,520 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:14:28,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28 WrapperNode [2023-11-23 21:14:28,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:28,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:28,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:14:28,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:14:28,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,606 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2023-11-23 21:14:28,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:28,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:14:28,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:14:28,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:14:28,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,634 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:14:28,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:14:28,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:14:28,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:14:28,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (1/1) ... [2023-11-23 21:14:28,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:28,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:28,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:14:28,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:14:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:14:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:14:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:14:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:14:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:14:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:14:28,871 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:14:28,873 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:14:29,277 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:14:29,409 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:14:29,419 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:14:29,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:29 BoogieIcfgContainer [2023-11-23 21:14:29,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:14:29,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:14:29,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:14:29,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:14:29,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:14:28" (1/3) ... [2023-11-23 21:14:29,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c9ff9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:29, skipping insertion in model container [2023-11-23 21:14:29,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:28" (2/3) ... [2023-11-23 21:14:29,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c9ff9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:29, skipping insertion in model container [2023-11-23 21:14:29,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:29" (3/3) ... [2023-11-23 21:14:29,431 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-96.i [2023-11-23 21:14:29,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:14:29,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:14:29,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:14:29,513 INFO L357 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, mHoare=true, 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;@cabb520, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:14:29,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:14:29,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:14:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 21:14:29,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:29,529 INFO L195 NwaCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:14:29,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:29,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:29,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2105022369, now seen corresponding path program 1 times [2023-11-23 21:14:29,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:29,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768607786] [2023-11-23 21:14:29,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:29,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:14:29,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:14:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:14:30,123 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:14:30,125 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:14:30,126 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:14:30,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:14:30,133 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:14:30,138 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:14:30,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:14:30 BoogieIcfgContainer [2023-11-23 21:14:30,201 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:14:30,202 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:14:30,202 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:14:30,202 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:14:30,203 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:29" (3/4) ... [2023-11-23 21:14:30,205 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:14:30,206 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:14:30,208 INFO L158 Benchmark]: Toolchain (without parser) took 2007.28ms. Allocated memory is still 161.5MB. Free memory was 129.9MB in the beginning and 110.6MB in the end (delta: 19.3MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-11-23 21:14:30,208 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:14:30,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.41ms. Allocated memory is still 161.5MB. Free memory was 129.9MB in the beginning and 117.1MB in the end (delta: 12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:14:30,209 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.46ms. Allocated memory is still 161.5MB. Free memory was 117.1MB in the beginning and 114.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:14:30,210 INFO L158 Benchmark]: Boogie Preprocessor took 70.43ms. Allocated memory is still 161.5MB. Free memory was 114.5MB in the beginning and 112.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:14:30,211 INFO L158 Benchmark]: RCFGBuilder took 742.78ms. Allocated memory is still 161.5MB. Free memory was 112.6MB in the beginning and 85.9MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:14:30,211 INFO L158 Benchmark]: TraceAbstraction took 776.75ms. Allocated memory is still 161.5MB. Free memory was 85.1MB in the beginning and 110.6MB in the end (delta: -25.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:14:30,212 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 161.5MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:14:30,215 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.41ms. Allocated memory is still 161.5MB. Free memory was 129.9MB in the beginning and 117.1MB in the end (delta: 12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.46ms. Allocated memory is still 161.5MB. Free memory was 117.1MB in the beginning and 114.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.43ms. Allocated memory is still 161.5MB. Free memory was 114.5MB in the beginning and 112.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 742.78ms. Allocated memory is still 161.5MB. Free memory was 112.6MB in the beginning and 85.9MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 776.75ms. Allocated memory is still 161.5MB. Free memory was 85.1MB in the beginning and 110.6MB in the end (delta: -25.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 161.5MB. Free memory is still 110.6MB. 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 someBinaryDOUBLEComparisonOperation at line 98, overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 8; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_3 = 8; [L25] unsigned short int var_1_4 = 1000; [L26] unsigned char var_1_5 = 1; [L27] unsigned char var_1_6 = 0; [L28] unsigned char var_1_9 = 0; [L29] unsigned char var_1_10 = 0; [L30] double var_1_11 = 4.575; [L31] double var_1_13 = 2.75; [L32] double var_1_14 = 128.5; [L33] signed long int var_1_15 = -1000000000; [L34] float var_1_16 = 99999.25; [L35] signed char var_1_17 = 1; [L36] signed char var_1_18 = 50; [L37] unsigned char last_1_var_1_5 = 1; [L102] isInitial = 1 [L103] FCALL initially() [L104] COND TRUE 1 [L105] CALL updateLastVariables() [L95] last_1_var_1_5 = var_1_5 [L105] RET updateLastVariables() [L106] CALL updateVariables() [L68] var_1_2 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_3=8, var_1_4=1000, var_1_5=1, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_3=8, var_1_4=1000, var_1_5=1, var_1_6=0, var_1_9=0] [L70] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=8, var_1_4=1000, var_1_5=1, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=8, var_1_4=1000, var_1_5=1, var_1_6=0, var_1_9=0] [L71] var_1_3 = __VERIFIER_nondet_ushort() [L72] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_4=1000, var_1_5=1, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_4=1000, var_1_5=1, var_1_6=0, var_1_9=0] [L73] CALL assume_abort_if_not(var_1_3 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=1000, var_1_5=1, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_3 <= 65534) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=1000, var_1_5=1, var_1_6=0, var_1_9=0] [L74] var_1_4 = __VERIFIER_nondet_ushort() [L75] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_5=1, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_5=1, var_1_6=0, var_1_9=0] [L76] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_9=0] [L77] var_1_6 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_9=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_9=0] [L79] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L80] var_1_9 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1] [L82] CALL assume_abort_if_not(var_1_9 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_9 <= 0) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=0, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L83] var_1_10 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L85] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_13=11/4, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L86] var_1_13 = __VERIFIER_nondet_double() [L87] CALL assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_14=257/2, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L88] var_1_14 = __VERIFIER_nondet_double() [L89] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=50, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L90] var_1_18 = __VERIFIER_nondet_char() [L91] CALL assume_abort_if_not(var_1_18 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=126, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_18 >= -127) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=126, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L92] CALL assume_abort_if_not(var_1_18 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=126, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_18 <= 126) VAL [isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_15=-1000000000, var_1_16=399997/4, var_1_17=1, var_1_18=126, var_1_1=8, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L106] RET updateVariables() [L107] CALL step() [L41] COND FALSE !(! last_1_var_1_5) [L44] var_1_1 = var_1_4 [L46] unsigned char stepLocal_0 = var_1_6; [L47] COND FALSE !(\read(var_1_2)) [L56] var_1_15 = var_1_1 [L57] var_1_16 = var_1_13 [L58] var_1_17 = var_1_18 [L59] COND FALSE !(((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))) > var_1_15) [L107] RET step() [L108] CALL, EXPR property() [L98-L99] return ((((((! last_1_var_1_5) ? (var_1_1 == ((unsigned short int) ((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))) : (var_1_1 == ((unsigned short int) var_1_4))) && (var_1_2 ? ((var_1_6 && ((var_1_3 >= 16) || last_1_var_1_5)) ? (var_1_6 ? (var_1_5 == ((unsigned char) ((var_1_1 < var_1_1) && var_1_9))) : (var_1_5 == ((unsigned char) var_1_10))) : 1) : 1)) && ((((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))) > var_1_15) ? (((var_1_15 / -5) >= ((var_1_4 + var_1_15) - ((((var_1_1) < (var_1_3)) ? (var_1_1) : (var_1_3))))) ? (var_1_11 == ((double) (var_1_13 + var_1_14))) : (var_1_11 == ((double) var_1_14))) : 1)) && (var_1_15 == ((signed long int) var_1_1))) && (var_1_16 == ((float) var_1_13))) && (var_1_17 == ((signed char) var_1_18)) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_13=100004, var_1_14=183/40, var_1_15=0, var_1_16=100004, var_1_17=126, var_1_18=126, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_5=1, var_1_10=1, var_1_11=183/40, var_1_13=100004, var_1_14=183/40, var_1_15=0, var_1_16=100004, var_1_17=126, var_1_18=126, var_1_1=0, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 16, 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=34occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 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 [2023-11-23 21:14:30,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-96.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire --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 5874a29868093144df67f3d9c006a000f3592329fa7366a6687deaedd0fc5b25 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:14:33,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:14:33,120 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:14:33,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:14:33,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:14:33,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:14:33,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:14:33,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:14:33,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:14:33,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:14:33,162 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:14:33,162 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:14:33,163 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:14:33,164 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:14:33,164 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:14:33,165 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:14:33,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:14:33,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:14:33,167 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:14:33,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:14:33,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:14:33,169 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:14:33,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:14:33,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:14:33,171 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:14:33,172 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:14:33,172 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:14:33,173 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:14:33,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:14:33,174 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:14:33,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:14:33,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:14:33,176 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:14:33,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:14:33,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:33,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:14:33,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:14:33,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:14:33,178 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:14:33,179 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:14:33,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:14:33,180 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:14:33,180 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:14:33,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:14:33,181 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5874a29868093144df67f3d9c006a000f3592329fa7366a6687deaedd0fc5b25 [2023-11-23 21:14:33,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:14:33,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:14:33,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:14:33,665 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:14:33,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:14:33,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-96.i [2023-11-23 21:14:36,972 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:14:37,295 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:14:37,295 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-96.i [2023-11-23 21:14:37,305 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/data/24c402681/f9711cd800b948d6bafe9ea7454d8cb6/FLAG9d269bccc [2023-11-23 21:14:37,321 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/data/24c402681/f9711cd800b948d6bafe9ea7454d8cb6 [2023-11-23 21:14:37,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:14:37,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:14:37,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:37,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:14:37,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:14:37,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cdb99d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37, skipping insertion in model container [2023-11-23 21:14:37,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,367 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:14:37,530 WARN L240 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_ca06e5a4-6989-405f-b425-8f644542019b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-96.i[917,930] [2023-11-23 21:14:37,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:37,601 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:14:37,616 WARN L240 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_ca06e5a4-6989-405f-b425-8f644542019b/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-96.i[917,930] [2023-11-23 21:14:37,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:37,659 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:14:37,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37 WrapperNode [2023-11-23 21:14:37,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:37,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:37,661 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:14:37,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:14:37,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,710 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2023-11-23 21:14:37,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:37,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:14:37,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:14:37,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:14:37,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,727 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:14:37,751 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:14:37,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:14:37,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:14:37,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (1/1) ... [2023-11-23 21:14:37,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:37,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:37,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:14:37,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:14:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:14:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:14:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:14:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:14:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:14:37,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:14:37,969 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:14:37,973 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:14:39,428 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:14:39,481 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:14:39,481 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:14:39,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:39 BoogieIcfgContainer [2023-11-23 21:14:39,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:14:39,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:14:39,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:14:39,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:14:39,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:14:37" (1/3) ... [2023-11-23 21:14:39,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649b931d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:39, skipping insertion in model container [2023-11-23 21:14:39,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:37" (2/3) ... [2023-11-23 21:14:39,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649b931d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:39, skipping insertion in model container [2023-11-23 21:14:39,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:39" (3/3) ... [2023-11-23 21:14:39,491 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-96.i [2023-11-23 21:14:39,509 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:14:39,509 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:14:39,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:14:39,568 INFO L357 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, mHoare=true, 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;@4c8a3b8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:14:39,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:14:39,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:14:39,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-23 21:14:39,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:39,587 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:14:39,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:39,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:39,593 INFO L85 PathProgramCache]: Analyzing trace with hash -931679415, now seen corresponding path program 1 times [2023-11-23 21:14:39,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:14:39,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004935472] [2023-11-23 21:14:39,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:39,610 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 [2023-11-23 21:14:39,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:14:39,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:14:39,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:14:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:39,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:14:39,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:14:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-23 21:14:40,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:14:40,023 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:14:40,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004935472] [2023-11-23 21:14:40,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004935472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:40,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:40,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:14:40,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914461211] [2023-11-23 21:14:40,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:40,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:14:40,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:14:40,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:14:40,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:14:40,070 INFO L87 Difference]: Start difference. First operand has 46 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 21:14:40,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:14:40,767 INFO L93 Difference]: Finished difference Result 89 states and 154 transitions. [2023-11-23 21:14:40,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:14:40,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 99 [2023-11-23 21:14:40,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:14:40,788 INFO L225 Difference]: With dead ends: 89 [2023-11-23 21:14:40,789 INFO L226 Difference]: Without dead ends: 44 [2023-11-23 21:14:40,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:14:40,797 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:14:40,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:14:40,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-23 21:14:40,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-23 21:14:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:14:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 65 transitions. [2023-11-23 21:14:40,850 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 65 transitions. Word has length 99 [2023-11-23 21:14:40,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:14:40,851 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 65 transitions. [2023-11-23 21:14:40,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 21:14:40,852 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 65 transitions. [2023-11-23 21:14:40,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-23 21:14:40,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:40,857 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:14:40,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:14:41,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:14:41,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:41,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:41,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1870388621, now seen corresponding path program 1 times [2023-11-23 21:14:41,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:14:41,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342408720] [2023-11-23 21:14:41,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:41,072 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 [2023-11-23 21:14:41,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:14:41,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:14:41,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:14:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:41,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:14:41,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:14:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-23 21:14:41,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:14:41,994 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:14:41,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342408720] [2023-11-23 21:14:41,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342408720] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:41,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:41,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:14:41,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970435636] [2023-11-23 21:14:41,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:41,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:14:41,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:14:41,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:14:42,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:14:42,000 INFO L87 Difference]: Start difference. First operand 44 states and 65 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-23 21:14:43,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:14:43,376 INFO L93 Difference]: Finished difference Result 139 states and 204 transitions. [2023-11-23 21:14:43,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:14:43,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2023-11-23 21:14:43,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:14:43,394 INFO L225 Difference]: With dead ends: 139 [2023-11-23 21:14:43,394 INFO L226 Difference]: Without dead ends: 96 [2023-11-23 21:14:43,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:14:43,397 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 57 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:14:43,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 177 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 21:14:43,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-23 21:14:43,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 84. [2023-11-23 21:14:43,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 21:14:43,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 125 transitions. [2023-11-23 21:14:43,433 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 125 transitions. Word has length 99 [2023-11-23 21:14:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:14:43,436 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 125 transitions. [2023-11-23 21:14:43,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-23 21:14:43,437 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 125 transitions. [2023-11-23 21:14:43,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-23 21:14:43,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:43,441 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:14:43,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/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)] Forceful destruction successful, exit code 0 [2023-11-23 21:14:43,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:14:43,648 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:43,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:43,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1061041995, now seen corresponding path program 1 times [2023-11-23 21:14:43,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:14:43,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268068582] [2023-11-23 21:14:43,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:43,650 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 [2023-11-23 21:14:43,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:14:43,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:14:43,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca06e5a4-6989-405f-b425-8f644542019b/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:14:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:43,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 21:14:43,906 INFO L285 TraceCheckSpWp]: Computing forward predicates...