./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje --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 fbed63e7ceb32b7a0e8cf5dc0c27da185670168d6f706e37fa0256a1876a7a11 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:56:04,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:56:04,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:56:04,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:56:04,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:56:04,266 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:56:04,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:56:04,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:56:04,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:56:04,272 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:56:04,272 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:56:04,272 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:56:04,273 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:56:04,273 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:56:04,274 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:56:04,274 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:56:04,275 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:56:04,275 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:56:04,276 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:56:04,276 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:56:04,276 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:56:04,277 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:56:04,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:56:04,278 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:56:04,279 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:56:04,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:56:04,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:56:04,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:56:04,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:56:04,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:56:04,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:56:04,282 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:56:04,282 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:56:04,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:56:04,283 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:56:04,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:56:04,284 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:56:04,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:56:04,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:56:04,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:56:04,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:56:04,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:56:04,286 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:56:04,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:56:04,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:56:04,287 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:56:04,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:56:04,288 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_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbed63e7ceb32b7a0e8cf5dc0c27da185670168d6f706e37fa0256a1876a7a11 [2024-11-09 05:56:04,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:56:04,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:56:04,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:56:04,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:56:04,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:56:04,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i Unable to find full path for "g++" [2024-11-09 05:56:07,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:56:07,374 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:56:07,374 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i [2024-11-09 05:56:07,392 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/data/3627301f6/e07c873ddcac4c37ac1f8511dd2caa13/FLAG02669a943 [2024-11-09 05:56:07,416 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/data/3627301f6/e07c873ddcac4c37ac1f8511dd2caa13 [2024-11-09 05:56:07,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:56:07,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:56:07,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:56:07,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:56:07,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:56:07,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d51fb2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07, skipping insertion in model container [2024-11-09 05:56:07,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,470 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:56:07,698 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i[916,929] [2024-11-09 05:56:07,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:56:07,776 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:56:07,793 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i[916,929] [2024-11-09 05:56:07,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:56:07,847 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:56:07,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07 WrapperNode [2024-11-09 05:56:07,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:56:07,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:56:07,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:56:07,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:56:07,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,933 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2024-11-09 05:56:07,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:56:07,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:56:07,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:56:07,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:56:07,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:07,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:56:08,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:56:08,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:56:08,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:56:08,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (1/1) ... [2024-11-09 05:56:08,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:56:08,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:56:08,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:56:08,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:56:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:56:08,106 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:56:08,106 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:56:08,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:56:08,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:56:08,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:56:08,224 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:56:08,226 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:56:08,542 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-09 05:56:08,542 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:56:08,752 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:56:08,752 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:56:08,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:56:08 BoogieIcfgContainer [2024-11-09 05:56:08,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:56:08,759 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:56:08,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:56:08,765 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:56:08,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:56:07" (1/3) ... [2024-11-09 05:56:08,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20795e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:56:08, skipping insertion in model container [2024-11-09 05:56:08,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:07" (2/3) ... [2024-11-09 05:56:08,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20795e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:56:08, skipping insertion in model container [2024-11-09 05:56:08,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:56:08" (3/3) ... [2024-11-09 05:56:08,769 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-24.i [2024-11-09 05:56:08,788 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:56:08,788 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:56:08,857 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:56:08,866 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7295af6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:56:08,866 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:56:08,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:56:08,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 05:56:08,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:56:08,886 INFO L215 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:56:08,886 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:56:08,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:56:08,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1453355331, now seen corresponding path program 1 times [2024-11-09 05:56:08,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:56:08,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555343298] [2024-11-09 05:56:08,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:08,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:56:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:56:09,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:56:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:56:09,793 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:56:09,795 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:56:09,798 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:56:09,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:56:09,806 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:56:09,907 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:56:09,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:56:09 BoogieIcfgContainer [2024-11-09 05:56:09,911 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:56:09,912 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:56:09,912 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:56:09,912 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:56:09,913 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:56:08" (3/4) ... [2024-11-09 05:56:09,916 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:56:09,917 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:56:09,919 INFO L158 Benchmark]: Toolchain (without parser) took 2498.42ms. Allocated memory is still 165.7MB. Free memory was 127.8MB in the beginning and 95.5MB in the end (delta: 32.3MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2024-11-09 05:56:09,919 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:56:09,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.83ms. Allocated memory is still 165.7MB. Free memory was 127.2MB in the beginning and 113.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 05:56:09,921 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.60ms. Allocated memory is still 165.7MB. Free memory was 113.1MB in the beginning and 111.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:56:09,921 INFO L158 Benchmark]: Boogie Preprocessor took 61.57ms. Allocated memory is still 165.7MB. Free memory was 111.1MB in the beginning and 109.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:56:09,922 INFO L158 Benchmark]: RCFGBuilder took 750.50ms. Allocated memory is still 165.7MB. Free memory was 109.0MB in the beginning and 84.7MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 05:56:09,923 INFO L158 Benchmark]: TraceAbstraction took 1152.44ms. Allocated memory is still 165.7MB. Free memory was 84.4MB in the beginning and 95.5MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:56:09,923 INFO L158 Benchmark]: Witness Printer took 5.85ms. Allocated memory is still 165.7MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:56:09,927 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.83ms. Allocated memory is still 165.7MB. Free memory was 127.2MB in the beginning and 113.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.60ms. Allocated memory is still 165.7MB. Free memory was 113.1MB in the beginning and 111.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.57ms. Allocated memory is still 165.7MB. Free memory was 111.1MB in the beginning and 109.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 750.50ms. Allocated memory is still 165.7MB. Free memory was 109.0MB in the beginning and 84.7MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1152.44ms. Allocated memory is still 165.7MB. Free memory was 84.4MB in the beginning and 95.5MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.85ms. Allocated memory is still 165.7MB. Free memory is still 95.5MB. 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 someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] unsigned char var_1_2 = 0; [L24] signed char var_1_4 = 16; [L25] signed char var_1_5 = 4; [L26] signed char var_1_6 = 0; [L27] unsigned short int var_1_7 = 0; [L28] unsigned short int var_1_10 = 55182; [L29] unsigned char var_1_12 = 0; [L30] unsigned char var_1_14 = 1; [L31] unsigned char var_1_15 = 1; [L32] unsigned char var_1_16 = 100; [L33] signed long int var_1_17 = 2; [L34] signed long int var_1_18 = 199; [L35] signed char var_1_19 = -128; [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] FCALL updateLastVariables() [L97] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L63] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=16, var_1_5=4, var_1_6=0, var_1_7=0] [L64] var_1_4 = __VERIFIER_nondet_char() [L65] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=4, var_1_6=0, var_1_7=0] [L66] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=4, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=4, var_1_6=0, var_1_7=0] [L67] var_1_5 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=0, var_1_7=0] [L69] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=0, var_1_7=0] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=0, var_1_7=0] [L70] var_1_6 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_6 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 >= -127) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L72] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, var_1_10=55182, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L73] var_1_10 = __VERIFIER_nondet_ushort() [L74] CALL assume_abort_if_not(var_1_10 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_10 >= 32767) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L75] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L76] var_1_14 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L78] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L79] var_1_15 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L81] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=199, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L82] var_1_18 = __VERIFIER_nondet_long() [L83] CALL assume_abort_if_not(var_1_18 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=0, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_18 >= -2147483648) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=0, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L84] CALL assume_abort_if_not(var_1_18 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=0, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_18 <= 2147483647) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=100, var_1_17=2, var_1_18=0, var_1_19=-128, var_1_1=32, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L97] RET updateVariables() [L98] CALL step() [L39] COND FALSE !(! var_1_2) [L42] var_1_12 = ((! var_1_15) || (! (! 0))) [L44] var_1_16 = var_1_5 [L45] var_1_17 = var_1_18 [L46] var_1_19 = var_1_4 [L47] COND TRUE var_1_12 || (64.75f < var_1_17) [L48] COND FALSE !(\read(var_1_12)) [L51] var_1_1 = ((((((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) < (var_1_6)) ? (((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) : (var_1_6))) [L56] COND FALSE !((((((var_1_17 * 127.75)) > ((var_1_17 / 3.4))) ? ((var_1_17 * 127.75)) : ((var_1_17 / 3.4)))) >= var_1_17) [L98] RET step() [L99] CALL, EXPR property() [L89-L90] return ((((((var_1_12 || (64.75f < var_1_17)) ? (var_1_12 ? (var_1_1 == ((signed char) (var_1_4 - var_1_5))) : (var_1_1 == ((signed char) ((((((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) < (var_1_6)) ? (((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5)))) : (var_1_6)))))) : (var_1_1 == ((signed char) var_1_4))) && (((((((var_1_17 * 127.75)) > ((var_1_17 / 3.4))) ? ((var_1_17 * 127.75)) : ((var_1_17 / 3.4)))) >= var_1_17) ? (var_1_7 == ((unsigned short int) (((((var_1_10 - (22925 - var_1_5))) < (var_1_16)) ? ((var_1_10 - (22925 - var_1_5))) : (var_1_16))))) : 1)) && ((! var_1_2) ? (var_1_12 == ((unsigned char) var_1_14)) : (var_1_12 == ((unsigned char) ((! var_1_15) || (! (! 0))))))) && (var_1_16 == ((unsigned char) var_1_5))) && (var_1_17 == ((signed long int) var_1_18))) && (var_1_19 == ((signed char) var_1_4)) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=121, var_1_17=0, var_1_18=0, var_1_19=125, var_1_1=125, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] [L19] reach_error() VAL [isInitial=1, var_1_10=32767, var_1_12=0, var_1_14=1, var_1_15=1, var_1_16=121, var_1_17=0, var_1_18=0, var_1_19=125, var_1_1=125, var_1_2=1, var_1_4=125, var_1_5=121, var_1_6=126, var_1_7=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 05:56:09,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje --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 fbed63e7ceb32b7a0e8cf5dc0c27da185670168d6f706e37fa0256a1876a7a11 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:56:12,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:56:13,133 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:56:13,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:56:13,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:56:13,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:56:13,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:56:13,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:56:13,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:56:13,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:56:13,212 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:56:13,212 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:56:13,213 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:56:13,216 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:56:13,216 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:56:13,217 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:56:13,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:56:13,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:56:13,219 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:56:13,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:56:13,219 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:56:13,224 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:56:13,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:56:13,225 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:56:13,225 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:56:13,225 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:56:13,226 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:56:13,226 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:56:13,226 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:56:13,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:56:13,227 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:56:13,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:56:13,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:56:13,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:56:13,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:56:13,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:56:13,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:56:13,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:56:13,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:56:13,234 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:56:13,235 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:56:13,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:56:13,236 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:56:13,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbed63e7ceb32b7a0e8cf5dc0c27da185670168d6f706e37fa0256a1876a7a11 [2024-11-09 05:56:13,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:56:13,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:56:13,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:56:13,792 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:56:13,792 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:56:13,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i Unable to find full path for "g++" [2024-11-09 05:56:16,297 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:56:16,575 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:56:16,576 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i [2024-11-09 05:56:16,591 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/data/13732ca0c/104a2a000ad74634909c2182a20e24c4/FLAG3268b4975 [2024-11-09 05:56:16,622 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/data/13732ca0c/104a2a000ad74634909c2182a20e24c4 [2024-11-09 05:56:16,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:56:16,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:56:16,634 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:56:16,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:56:16,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:56:16,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:56:16" (1/1) ... [2024-11-09 05:56:16,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620ff34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:16, skipping insertion in model container [2024-11-09 05:56:16,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:56:16" (1/1) ... [2024-11-09 05:56:16,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:56:16,947 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i[916,929] [2024-11-09 05:56:17,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:56:17,074 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:56:17,092 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-24.i[916,929] [2024-11-09 05:56:17,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:56:17,188 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:56:17,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17 WrapperNode [2024-11-09 05:56:17,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:56:17,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:56:17,192 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:56:17,192 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:56:17,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (1/1) ... [2024-11-09 05:56:17,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (1/1) ... [2024-11-09 05:56:17,272 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-11-09 05:56:17,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:56:17,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:56:17,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:56:17,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:56:17,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (1/1) ... [2024-11-09 05:56:17,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (1/1) ... [2024-11-09 05:56:17,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (1/1) ... [2024-11-09 05:56:17,302 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (1/1) ... [2024-11-09 05:56:17,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (1/1) ... [2024-11-09 05:56:17,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (1/1) ... [2024-11-09 05:56:17,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (1/1) ... [2024-11-09 05:56:17,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (1/1) ... [2024-11-09 05:56:17,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:56:17,349 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:56:17,354 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:56:17,354 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:56:17,355 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (1/1) ... [2024-11-09 05:56:17,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:56:17,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:56:17,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:56:17,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:56:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:56:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:56:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:56:17,455 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:56:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:56:17,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:56:17,572 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:56:17,576 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:56:24,335 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-09 05:56:24,336 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:56:24,353 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:56:24,354 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:56:24,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:56:24 BoogieIcfgContainer [2024-11-09 05:56:24,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:56:24,359 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:56:24,359 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:56:24,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:56:24,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:56:16" (1/3) ... [2024-11-09 05:56:24,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb357e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:56:24, skipping insertion in model container [2024-11-09 05:56:24,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:56:17" (2/3) ... [2024-11-09 05:56:24,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb357e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:56:24, skipping insertion in model container [2024-11-09 05:56:24,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:56:24" (3/3) ... [2024-11-09 05:56:24,368 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-24.i [2024-11-09 05:56:24,391 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:56:24,391 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:56:24,490 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:56:24,498 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77bac977, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:56:24,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:56:24,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:56:24,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 05:56:24,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:56:24,520 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:56:24,521 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:56:24,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:56:24,528 INFO L85 PathProgramCache]: Analyzing trace with hash 233931836, now seen corresponding path program 1 times [2024-11-09 05:56:24,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:56:24,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690375767] [2024-11-09 05:56:24,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:24,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:56:24,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:56:24,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:56:24,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 05:56:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:56:25,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:56:25,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:56:25,819 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-11-09 05:56:25,820 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:56:25,821 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:56:25,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690375767] [2024-11-09 05:56:25,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690375767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:56:25,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:56:25,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:56:25,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752944818] [2024-11-09 05:56:25,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:56:25,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:56:25,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:56:25,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:56:25,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:56:25,865 INFO L87 Difference]: Start difference. First operand has 48 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 30 states have internal predecessors, (38), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 05:56:25,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:56:25,900 INFO L93 Difference]: Finished difference Result 89 states and 150 transitions. [2024-11-09 05:56:25,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:56:25,903 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2024-11-09 05:56:25,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:56:25,912 INFO L225 Difference]: With dead ends: 89 [2024-11-09 05:56:25,913 INFO L226 Difference]: Without dead ends: 44 [2024-11-09 05:56:25,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:56:25,921 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:56:25,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:56:25,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-09 05:56:25,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-09 05:56:25,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:56:25,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 63 transitions. [2024-11-09 05:56:25,988 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 63 transitions. Word has length 101 [2024-11-09 05:56:25,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:56:25,988 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 63 transitions. [2024-11-09 05:56:25,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 05:56:25,989 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2024-11-09 05:56:25,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 05:56:25,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:56:25,994 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:56:26,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/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)] Forceful destruction successful, exit code 0 [2024-11-09 05:56:26,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:56:26,195 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:56:26,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:56:26,197 INFO L85 PathProgramCache]: Analyzing trace with hash 2139006012, now seen corresponding path program 1 times [2024-11-09 05:56:26,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:56:26,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969758201] [2024-11-09 05:56:26,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:26,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:56:26,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:56:26,203 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:56:26,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 05:56:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:56:27,426 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:56:27,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:56:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 242 proven. 24 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-11-09 05:56:29,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:56:31,363 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-09 05:56:31,363 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:56:31,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969758201] [2024-11-09 05:56:31,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969758201] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:56:31,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1994390979] [2024-11-09 05:56:31,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:31,365 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:56:31,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:56:31,370 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:56:31,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 05:56:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:56:32,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:56:32,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:56:33,781 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 235 proven. 15 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-09 05:56:33,782 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:56:34,958 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-09 05:56:34,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1994390979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:56:34,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103153081] [2024-11-09 05:56:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:56:34,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:56:34,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:56:34,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:56:34,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:56:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:56:35,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:56:35,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:56:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 235 proven. 15 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2024-11-09 05:56:36,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:56:37,696 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 15 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-09 05:56:37,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103153081] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:56:37,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 05:56:37,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6, 6, 6, 6] total 12 [2024-11-09 05:56:37,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079589619] [2024-11-09 05:56:37,699 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 05:56:37,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:56:37,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:56:37,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:56:37,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:56:37,710 INFO L87 Difference]: Start difference. First operand 44 states and 63 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-09 05:56:42,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:44,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:46,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:48,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:50,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:52,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:54,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:56:57,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:00,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:02,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:04,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 05:57:09,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:57:09,781 INFO L93 Difference]: Finished difference Result 194 states and 262 transitions. [2024-11-09 05:57:09,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 05:57:09,782 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 101 [2024-11-09 05:57:09,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:57:09,786 INFO L225 Difference]: With dead ends: 194 [2024-11-09 05:57:09,787 INFO L226 Difference]: Without dead ends: 153 [2024-11-09 05:57:09,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 589 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=296, Invalid=760, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 05:57:09,792 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 148 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 122 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:57:09,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 265 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 323 Invalid, 11 Unknown, 0 Unchecked, 28.8s Time] [2024-11-09 05:57:09,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-09 05:57:09,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 55. [2024-11-09 05:57:09,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-09 05:57:09,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 72 transitions. [2024-11-09 05:57:09,824 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 72 transitions. Word has length 101 [2024-11-09 05:57:09,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:57:09,825 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 72 transitions. [2024-11-09 05:57:09,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (25), 3 states have call predecessors, (25), 6 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-09 05:57:09,826 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 72 transitions. [2024-11-09 05:57:09,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 05:57:09,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:57:09,829 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:57:09,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:57:10,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:57:10,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:57:10,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/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_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:57:10,434 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:57:10,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:57:10,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1329659386, now seen corresponding path program 1 times [2024-11-09 05:57:10,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:57:10,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005531424] [2024-11-09 05:57:10,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:57:10,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 05:57:10,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:57:10,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 05:57:10,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a86b1ad-2db3-49a9-af30-9c98e0821196/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:57:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:57:11,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 05:57:11,504 INFO L278 TraceCheckSpWp]: Computing forward predicates...