./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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_99de7561-ae89-403e-8229-63179c0d9bea/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 8a414fc8edfc2d8d8869c2a8a1f169297ecf9d798ee385b139bec6a9c64dec89 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:29,376 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:29,453 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:29:29,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:29,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:29,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:29,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:29,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:29,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:29,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:29,514 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:29,514 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:29,514 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:29,515 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:29:29,515 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:29,516 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:29,516 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:29:29,517 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:29:29,517 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:29,517 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:29:29,518 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:29:29,520 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:29:29,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:29,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:29,530 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:29:29,530 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:29:29,530 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:29:29,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:29,531 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:29,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:29,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:29,533 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:29:29,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:29,534 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:29,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:29,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:29,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:29,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:29,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:29,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:29,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:29,536 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:29:29,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:29:29,537 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:29,538 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:29,538 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:29,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:29,538 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_99de7561-ae89-403e-8229-63179c0d9bea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a414fc8edfc2d8d8869c2a8a1f169297ecf9d798ee385b139bec6a9c64dec89 [2023-11-23 21:29:29,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:29,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:29,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:29,907 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:29,907 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:29,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-92.i [2023-11-23 21:29:33,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:33,236 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:33,237 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-92.i [2023-11-23 21:29:33,259 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/data/4e2f2a64e/8005cfbcb08d4f0f9cb70444880c638a/FLAG8efb6f4fa [2023-11-23 21:29:33,276 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/data/4e2f2a64e/8005cfbcb08d4f0f9cb70444880c638a [2023-11-23 21:29:33,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:33,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:33,291 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:33,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:33,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:33,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7666b666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33, skipping insertion in model container [2023-11-23 21:29:33,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,343 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:33,512 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_99de7561-ae89-403e-8229-63179c0d9bea/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-92.i[917,930] [2023-11-23 21:29:33,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:33,574 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:33,587 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_99de7561-ae89-403e-8229-63179c0d9bea/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-92.i[917,930] [2023-11-23 21:29:33,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:33,628 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:33,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33 WrapperNode [2023-11-23 21:29:33,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:33,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:33,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:33,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:33,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,684 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2023-11-23 21:29:33,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:33,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:33,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:33,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:33,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,698 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,698 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:33,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:33,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:33,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:33,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (1/1) ... [2023-11-23 21:29:33,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:33,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:33,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:33,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:29:33,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:29:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:29:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:33,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:33,958 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:33,961 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:34,338 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:34,534 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:34,534 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:34,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:34 BoogieIcfgContainer [2023-11-23 21:29:34,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:34,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:34,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:34,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:34,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:33" (1/3) ... [2023-11-23 21:29:34,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d653454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:34, skipping insertion in model container [2023-11-23 21:29:34,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:33" (2/3) ... [2023-11-23 21:29:34,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d653454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:34, skipping insertion in model container [2023-11-23 21:29:34,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:34" (3/3) ... [2023-11-23 21:29:34,547 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-92.i [2023-11-23 21:29:34,562 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:34,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:29:34,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:34,617 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;@707d3df8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:34,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:29:34,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:29:34,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 21:29:34,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:34,633 INFO L195 NwaCegarLoop]: trace histogram [19, 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, 1] [2023-11-23 21:29:34,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:34,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:34,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1156367375, now seen corresponding path program 1 times [2023-11-23 21:29:34,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:34,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275314189] [2023-11-23 21:29:34,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:34,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:34,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:29:34,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237559322] [2023-11-23 21:29:34,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:34,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:34,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:34,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:34,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:29:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:35,142 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:29:35,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:29:35,294 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:29:35,296 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:29:35,298 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:29:35,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:35,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:29:35,512 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:29:35,518 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:29:35,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:29:35 BoogieIcfgContainer [2023-11-23 21:29:35,608 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:29:35,608 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:29:35,608 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:29:35,609 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:29:35,609 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:34" (3/4) ... [2023-11-23 21:29:35,611 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:29:35,612 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:29:35,613 INFO L158 Benchmark]: Toolchain (without parser) took 2327.88ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 74.4MB in the beginning and 99.6MB in the end (delta: -25.2MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-11-23 21:29:35,614 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:35,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.41ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 61.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:29:35,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.63ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 59.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:29:35,616 INFO L158 Benchmark]: Boogie Preprocessor took 34.34ms. Allocated memory is still 117.4MB. Free memory was 59.2MB in the beginning and 57.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:35,617 INFO L158 Benchmark]: RCFGBuilder took 816.45ms. Allocated memory is still 117.4MB. Free memory was 57.6MB in the beginning and 65.0MB in the end (delta: -7.4MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-11-23 21:29:35,618 INFO L158 Benchmark]: TraceAbstraction took 1068.30ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 64.4MB in the beginning and 100.5MB in the end (delta: -36.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:35,618 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 148.9MB. Free memory was 100.5MB in the beginning and 99.6MB in the end (delta: 884.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:29:35,622 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.41ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 61.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.63ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 59.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.34ms. Allocated memory is still 117.4MB. Free memory was 59.2MB in the beginning and 57.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 816.45ms. Allocated memory is still 117.4MB. Free memory was 57.6MB in the beginning and 65.0MB in the end (delta: -7.4MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1068.30ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 64.4MB in the beginning and 100.5MB in the end (delta: -36.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 148.9MB. Free memory was 100.5MB in the beginning and 99.6MB in the end (delta: 884.5kB). 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 94, overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of bitwiseAnd at line 42. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = 2; [L24] signed char var_1_3 = 8; [L25] signed char var_1_4 = 0; [L26] signed char var_1_5 = 32; [L27] signed char var_1_6 = 10; [L28] double var_1_7 = 1000000.625; [L29] double var_1_8 = 16.65; [L30] double var_1_9 = 15.5; [L31] signed short int var_1_10 = 500; [L32] unsigned short int var_1_11 = 8; [L33] unsigned char var_1_13 = 0; [L34] unsigned short int var_1_14 = 100; [L35] unsigned char var_1_15 = 0; [L36] unsigned char var_1_16 = 0; [L37] float var_1_17 = 2.4; [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] FCALL updateLastVariables() [L102] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_char() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L63] CALL assume_abort_if_not(var_1_2 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L64] var_1_3 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L66] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L67] var_1_4 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L69] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L70] var_1_5 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L72] CALL assume_abort_if_not(var_1_5 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_5 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L73] var_1_6 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L75] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8, var_1_8=333/20, var_1_9=31/2] [L76] var_1_8 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8, var_1_9=31/2] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8, var_1_9=31/2] [L78] var_1_9 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=100, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L80] var_1_14 = __VERIFIER_nondet_ushort() [L81] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L82] CALL assume_abort_if_not(var_1_14 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_14 <= 65535) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L83] CALL assume_abort_if_not(var_1_14 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 != 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L84] var_1_15 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=3, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=3, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L86] CALL assume_abort_if_not(var_1_15 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_15 <= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L87] var_1_16 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=3, var_1_15=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=3, var_1_15=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L89] CALL assume_abort_if_not(var_1_16 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_16 <= 0) VAL [isInitial=1, var_1_10=500, var_1_11=8, var_1_13=0, var_1_14=3, var_1_15=0, var_1_16=0, var_1_17=12/5, var_1_1=32, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=8000005/8] [L102] RET updateVariables() [L103] CALL step() [L41] var_1_1 = ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))) [L42] EXPR var_1_6 & var_1_3 [L42] signed long int stepLocal_0 = (~ var_1_5) * (var_1_6 & var_1_3); [L43] COND FALSE !(stepLocal_0 >= var_1_4) [L46] var_1_7 = var_1_9 [L48] var_1_10 = ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))) [L49] signed long int stepLocal_1 = var_1_6 / var_1_14; [L50] COND FALSE !(stepLocal_1 < -100) [L53] var_1_13 = (var_1_15 && var_1_16) [L55] var_1_17 = var_1_8 [L56] COND TRUE ! var_1_13 [L57] var_1_11 = (var_1_5 + (((((var_1_6) > (1)) ? (var_1_6) : (1))) + 64)) [L103] RET step() [L104] CALL, EXPR property() [L94] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : (var_1_7 == ((double) var_1_9))) [L94] EXPR var_1_6 & var_1_3 [L94] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : (var_1_7 == ((double) var_1_9))) [L94-L95] return (((((var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : (var_1_7 == ((double) var_1_9)))) && (var_1_10 == ((signed short int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2)))))) && ((! var_1_13) ? (var_1_11 == ((unsigned short int) (var_1_5 + (((((var_1_6) > (1)) ? (var_1_6) : (1))) + 64)))) : 1)) && (((var_1_6 / var_1_14) < -100) ? (var_1_13 == ((unsigned char) (! (! (! var_1_15))))) : (var_1_13 == ((unsigned char) (var_1_15 && var_1_16))))) && (var_1_17 == ((float) var_1_8)) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=66, var_1_13=0, var_1_14=3, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=1, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=3, var_1_8=2, var_1_9=3] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=66, var_1_13=0, var_1_14=3, var_1_15=0, var_1_16=0, var_1_17=2, var_1_1=1, var_1_2=0, var_1_3=3, var_1_4=0, var_1_5=0, var_1_6=2, var_1_7=3, var_1_8=2, var_1_9=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 19, 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=38occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 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 21:29:35,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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_99de7561-ae89-403e-8229-63179c0d9bea/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 8a414fc8edfc2d8d8869c2a8a1f169297ecf9d798ee385b139bec6a9c64dec89 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:38,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:38,590 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:29:38,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:38,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:38,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:38,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:38,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:38,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:38,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:38,661 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:38,661 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:38,661 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:38,663 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:38,664 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:38,664 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:38,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:38,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:38,666 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:29:38,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:29:38,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:38,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:38,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:38,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:38,669 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:29:38,670 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:29:38,670 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:29:38,671 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:29:38,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:38,671 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:38,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:38,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:29:38,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:38,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:38,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:38,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:38,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:38,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:38,675 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:29:38,676 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:29:38,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:38,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:38,677 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:38,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:38,677 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_99de7561-ae89-403e-8229-63179c0d9bea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a414fc8edfc2d8d8869c2a8a1f169297ecf9d798ee385b139bec6a9c64dec89 [2023-11-23 21:29:39,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:39,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:39,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:39,125 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:39,126 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:39,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-92.i [2023-11-23 21:29:42,236 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:42,528 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:42,529 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-92.i [2023-11-23 21:29:42,539 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/data/02a873bd9/609243dc19e8445b953c115b651ab673/FLAGc558f2b47 [2023-11-23 21:29:42,554 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/data/02a873bd9/609243dc19e8445b953c115b651ab673 [2023-11-23 21:29:42,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:42,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:42,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:42,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:42,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:42,568 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:42" (1/1) ... [2023-11-23 21:29:42,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e1bee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:42, skipping insertion in model container [2023-11-23 21:29:42,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:42" (1/1) ... [2023-11-23 21:29:42,613 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:42,852 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_99de7561-ae89-403e-8229-63179c0d9bea/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-92.i[917,930] [2023-11-23 21:29:42,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:42,982 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:43,001 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_99de7561-ae89-403e-8229-63179c0d9bea/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-92.i[917,930] [2023-11-23 21:29:43,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:43,092 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:43,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43 WrapperNode [2023-11-23 21:29:43,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:43,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:43,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:43,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:43,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (1/1) ... [2023-11-23 21:29:43,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (1/1) ... [2023-11-23 21:29:43,181 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2023-11-23 21:29:43,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:43,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:43,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:43,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:43,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (1/1) ... [2023-11-23 21:29:43,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (1/1) ... [2023-11-23 21:29:43,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (1/1) ... [2023-11-23 21:29:43,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (1/1) ... [2023-11-23 21:29:43,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (1/1) ... [2023-11-23 21:29:43,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (1/1) ... [2023-11-23 21:29:43,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (1/1) ... [2023-11-23 21:29:43,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (1/1) ... [2023-11-23 21:29:43,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:43,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:43,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:43,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:43,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (1/1) ... [2023-11-23 21:29:43,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:43,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:43,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:43,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:43,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:43,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:29:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:29:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:29:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:43,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:43,589 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:43,595 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:44,556 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:44,621 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:44,621 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:44,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:44 BoogieIcfgContainer [2023-11-23 21:29:44,622 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:44,625 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:44,625 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:44,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:44,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:42" (1/3) ... [2023-11-23 21:29:44,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ade9e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:44, skipping insertion in model container [2023-11-23 21:29:44,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:43" (2/3) ... [2023-11-23 21:29:44,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ade9e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:44, skipping insertion in model container [2023-11-23 21:29:44,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:44" (3/3) ... [2023-11-23 21:29:44,637 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-92.i [2023-11-23 21:29:44,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:44,659 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:29:44,713 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:44,723 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;@4b9123c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:44,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:29:44,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:29:44,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 21:29:44,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:44,753 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:44,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:44,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:44,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1944405470, now seen corresponding path program 1 times [2023-11-23 21:29:44,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:44,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519785732] [2023-11-23 21:29:44,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:44,780 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 21:29:44,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:44,820 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 21:29:44,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 21:29:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:45,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:29:45,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:45,273 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2023-11-23 21:29:45,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:29:45,274 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:29:45,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519785732] [2023-11-23 21:29:45,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519785732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:45,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:45,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:29:45,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695198472] [2023-11-23 21:29:45,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:45,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:29:45,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:29:45,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:29:45,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:29:45,328 INFO L87 Difference]: Start difference. First operand has 47 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:29:45,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:45,707 INFO L93 Difference]: Finished difference Result 91 states and 159 transitions. [2023-11-23 21:29:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:29:45,719 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 115 [2023-11-23 21:29:45,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:45,726 INFO L225 Difference]: With dead ends: 91 [2023-11-23 21:29:45,726 INFO L226 Difference]: Without dead ends: 45 [2023-11-23 21:29:45,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 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 21:29:45,735 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:45,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:29:45,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-23 21:29:45,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-23 21:29:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:29:45,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2023-11-23 21:29:45,789 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 66 transitions. Word has length 115 [2023-11-23 21:29:45,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:45,790 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-23 21:29:45,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-23 21:29:45,790 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2023-11-23 21:29:45,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 21:29:45,794 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:45,795 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:45,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 21:29:46,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 21:29:46,007 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:46,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:46,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1324552216, now seen corresponding path program 1 times [2023-11-23 21:29:46,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:46,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218666552] [2023-11-23 21:29:46,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:46,010 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 21:29:46,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:46,013 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 21:29:46,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 21:29:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:46,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:29:46,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 456 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 21:29:47,482 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:29:48,829 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:29:48,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218666552] [2023-11-23 21:29:48,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218666552] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:29:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1995859705] [2023-11-23 21:29:48,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:48,830 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:29:48,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:29:48,834 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:29:48,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 21:29:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:49,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:29:49,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:50,289 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 456 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 21:29:50,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:29:50,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1995859705] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:29:50,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770987117] [2023-11-23 21:29:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:50,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:50,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:50,801 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:50,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:29:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:50,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:29:50,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 456 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 21:29:51,475 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:29:51,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770987117] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:29:51,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:29:51,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2023-11-23 21:29:51,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224917319] [2023-11-23 21:29:51,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:29:51,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 21:29:51,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:29:51,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 21:29:51,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:29:51,983 INFO L87 Difference]: Start difference. First operand 45 states and 66 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 21:29:54,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:54,935 INFO L93 Difference]: Finished difference Result 101 states and 141 transitions. [2023-11-23 21:29:54,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 21:29:54,948 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 115 [2023-11-23 21:29:54,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:54,950 INFO L225 Difference]: With dead ends: 101 [2023-11-23 21:29:54,950 INFO L226 Difference]: Without dead ends: 57 [2023-11-23 21:29:54,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2023-11-23 21:29:54,954 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 37 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:54,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 117 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 21:29:54,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-23 21:29:54,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 53. [2023-11-23 21:29:54,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:29:54,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2023-11-23 21:29:54,973 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 115 [2023-11-23 21:29:54,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:54,975 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2023-11-23 21:29:54,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-23 21:29:54,975 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2023-11-23 21:29:54,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 21:29:54,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:54,978 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:55,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:55,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 21:29:55,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:55,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt [2023-11-23 21:29:55,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:55,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:55,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1381810518, now seen corresponding path program 1 times [2023-11-23 21:29:55,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:55,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800103596] [2023-11-23 21:29:55,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:55,605 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 21:29:55,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:55,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 21:29:55,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 (6)] Waiting until timeout for monitored process [2023-11-23 21:29:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:55,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:29:55,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:56,050 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 178 proven. 6 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2023-11-23 21:29:56,050 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:29:56,357 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-23 21:29:56,358 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:29:56,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800103596] [2023-11-23 21:29:56,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800103596] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:29:56,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1254006399] [2023-11-23 21:29:56,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:56,361 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:29:56,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:29:56,364 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:29:56,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-23 21:29:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:57,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:29:57,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 178 proven. 6 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2023-11-23 21:29:57,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:29:57,659 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-23 21:29:57,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1254006399] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:29:57,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040916608] [2023-11-23 21:29:57,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:57,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:29:57,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:57,664 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:29:57,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:29:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:57,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:29:57,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:29:57,998 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 178 proven. 6 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2023-11-23 21:29:57,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:29:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-23 21:29:58,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040916608] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:29:58,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 21:29:58,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 8 [2023-11-23 21:29:58,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388122834] [2023-11-23 21:29:58,225 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 21:29:58,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:29:58,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:29:58,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:29:58,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:29:58,229 INFO L87 Difference]: Start difference. First operand 53 states and 71 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 21:29:59,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:59,321 INFO L93 Difference]: Finished difference Result 115 states and 150 transitions. [2023-11-23 21:29:59,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 21:29:59,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 115 [2023-11-23 21:29:59,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:59,336 INFO L225 Difference]: With dead ends: 115 [2023-11-23 21:29:59,336 INFO L226 Difference]: Without dead ends: 63 [2023-11-23 21:29:59,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 676 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:29:59,339 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 54 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:59,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 75 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 21:29:59,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-23 21:29:59,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2023-11-23 21:29:59,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 33 states have internal predecessors, (35), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-23 21:29:59,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 73 transitions. [2023-11-23 21:29:59,359 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 73 transitions. Word has length 115 [2023-11-23 21:29:59,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:59,360 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 73 transitions. [2023-11-23 21:29:59,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 21:29:59,361 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 73 transitions. [2023-11-23 21:29:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 21:29:59,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:59,364 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:29:59,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:59,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:29:59,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 (6)] Ended with exit code 0 [2023-11-23 21:29:59,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 21:29:59,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:59,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:59,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1381750936, now seen corresponding path program 1 times [2023-11-23 21:29:59,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:29:59,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576403255] [2023-11-23 21:29:59,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:59,990 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 21:29:59,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:29:59,992 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 21:29:59,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99de7561-ae89-403e-8229-63179c0d9bea/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 (9)] Waiting until timeout for monitored process [2023-11-23 21:30:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:00,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-23 21:30:00,374 INFO L285 TraceCheckSpWp]: Computing forward predicates...