./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/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_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/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_e1d64a22-c3a7-4da5-879a-92352a41e56f/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 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:29:12,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:29:12,571 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:29:12,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:29:12,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:29:12,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:29:12,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:29:12,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:29:12,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:29:12,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:29:12,602 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:29:12,603 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:29:12,603 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:29:12,603 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:29:12,604 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:29:12,604 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:29:12,605 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:29:12,605 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:29:12,611 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:29:12,612 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:29:12,612 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:29:12,616 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:29:12,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:29:12,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:29:12,620 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:29:12,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:29:12,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:29:12,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:29:12,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:29:12,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:29:12,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:29:12,625 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:29:12,626 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:29:12,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:29:12,626 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:29:12,626 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:29:12,627 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:29:12,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:29:12,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:29:12,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:29:12,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:29:12,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:29:12,630 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:29:12,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:29:12,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:29:12,631 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:29:12,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:29:12,632 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_e1d64a22-c3a7-4da5-879a-92352a41e56f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 [2024-11-09 07:29:12,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:29:13,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:29:13,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:29:13,040 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:29:13,041 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:29:13,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i Unable to find full path for "g++" [2024-11-09 07:29:15,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:29:15,397 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:29:15,398 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/sv-benchmarks/c/floats-cdfpl/newton_3_1.i [2024-11-09 07:29:15,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/data/ff528ddf0/be6843c4a4ec4004ab74cf383bfdd0aa/FLAGbadec8eee [2024-11-09 07:29:15,425 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/data/ff528ddf0/be6843c4a4ec4004ab74cf383bfdd0aa [2024-11-09 07:29:15,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:29:15,429 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:29:15,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:29:15,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:29:15,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:29:15,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74693be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15, skipping insertion in model container [2024-11-09 07:29:15,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,471 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:29:15,683 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_e1d64a22-c3a7-4da5-879a-92352a41e56f/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2024-11-09 07:29:15,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:29:15,702 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:29:15,725 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_e1d64a22-c3a7-4da5-879a-92352a41e56f/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2024-11-09 07:29:15,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:29:15,743 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:29:15,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15 WrapperNode [2024-11-09 07:29:15,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:29:15,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:29:15,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:29:15,745 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:29:15,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,782 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2024-11-09 07:29:15,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:29:15,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:29:15,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:29:15,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:29:15,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,806 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:29:15,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:29:15,810 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:29:15,810 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:29:15,811 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (1/1) ... [2024-11-09 07:29:15,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:29:15,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:29:15,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:29:15,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:29:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:29:15,894 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-09 07:29:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-09 07:29:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-09 07:29:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-09 07:29:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:29:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:29:15,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:29:15,968 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:29:15,971 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:29:16,142 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-09 07:29:16,142 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:29:16,188 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:29:16,188 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:29:16,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:29:16 BoogieIcfgContainer [2024-11-09 07:29:16,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:29:16,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:29:16,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:29:16,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:29:16,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:29:15" (1/3) ... [2024-11-09 07:29:16,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d0c876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:29:16, skipping insertion in model container [2024-11-09 07:29:16,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:15" (2/3) ... [2024-11-09 07:29:16,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d0c876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:29:16, skipping insertion in model container [2024-11-09 07:29:16,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:29:16" (3/3) ... [2024-11-09 07:29:16,204 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_1.i [2024-11-09 07:29:16,224 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:29:16,224 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:29:16,286 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:29:16,294 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;@78953b47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:29:16,295 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:29:16,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:29:16,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 07:29:16,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:16,310 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:29:16,311 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:29:16,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1034421533, now seen corresponding path program 1 times [2024-11-09 07:29:16,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:29:16,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660726129] [2024-11-09 07:29:16,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:16,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:29:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:29:16,487 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:29:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:29:16,540 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:29:16,543 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:29:16,545 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 07:29:16,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:29:16,554 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 07:29:16,617 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:29:16,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:29:16 BoogieIcfgContainer [2024-11-09 07:29:16,626 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:29:16,627 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:29:16,628 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:29:16,628 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:29:16,629 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:29:16" (3/4) ... [2024-11-09 07:29:16,632 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 07:29:16,634 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:29:16,635 INFO L158 Benchmark]: Toolchain (without parser) took 1205.72ms. Allocated memory is still 123.7MB. Free memory was 93.5MB in the beginning and 95.3MB in the end (delta: -1.8MB). Peak memory consumption was 500.5kB. Max. memory is 16.1GB. [2024-11-09 07:29:16,636 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 123.7MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:29:16,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.54ms. Allocated memory is still 123.7MB. Free memory was 93.1MB in the beginning and 80.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 07:29:16,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.66ms. Allocated memory is still 123.7MB. Free memory was 80.7MB in the beginning and 79.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:29:16,639 INFO L158 Benchmark]: Boogie Preprocessor took 25.39ms. Allocated memory is still 123.7MB. Free memory was 79.3MB in the beginning and 78.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:29:16,640 INFO L158 Benchmark]: RCFGBuilder took 379.42ms. Allocated memory is still 123.7MB. Free memory was 78.1MB in the beginning and 65.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 07:29:16,642 INFO L158 Benchmark]: TraceAbstraction took 434.50ms. Allocated memory is still 123.7MB. Free memory was 64.7MB in the beginning and 95.7MB in the end (delta: -31.0MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-11-09 07:29:16,643 INFO L158 Benchmark]: Witness Printer took 7.41ms. Allocated memory is still 123.7MB. Free memory was 95.6MB in the beginning and 95.3MB in the end (delta: 345.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:29:16,646 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 123.7MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.54ms. Allocated memory is still 123.7MB. Free memory was 93.1MB in the beginning and 80.7MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.66ms. Allocated memory is still 123.7MB. Free memory was 80.7MB in the beginning and 79.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.39ms. Allocated memory is still 123.7MB. Free memory was 79.3MB in the beginning and 78.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 379.42ms. Allocated memory is still 123.7MB. Free memory was 78.1MB in the beginning and 65.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 434.50ms. Allocated memory is still 123.7MB. Free memory was 64.7MB in the beginning and 95.7MB in the end (delta: -31.0MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Witness Printer took 7.41ms. Allocated memory is still 123.7MB. Free memory was 95.6MB in the beginning and 95.3MB in the end (delta: 345.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: 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 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -0.2f && IN < 0.2f) [L24] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN > -0.2f && IN < 0.2f) [L42] CALL, EXPR f(IN) VAL [\old(x)=55] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L42] RET, EXPR f(IN) VAL [IN=55] [L42] CALL, EXPR fp(IN) VAL [\old(x)=55] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L42] RET, EXPR fp(IN) VAL [IN=55] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=53] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L44] RET, EXPR f(x) VAL [IN=55, x=53] [L44] CALL, EXPR fp(x) VAL [\old(x)=53] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L44] RET, EXPR fp(x) VAL [IN=55, x=53] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L46] RET, EXPR f(x) VAL [IN=55, x=54] [L46] CALL, EXPR fp(x) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L46] RET, EXPR fp(x) VAL [IN=55, x=54] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=55] [L51] reach_error() VAL [IN=55] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 3, 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=19occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 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 07:29:16,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/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_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/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_e1d64a22-c3a7-4da5-879a-92352a41e56f/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 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:29:19,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:29:19,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 07:29:19,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:29:19,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:29:19,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:29:19,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:29:19,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:29:19,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:29:19,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:29:19,468 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:29:19,468 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:29:19,468 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:29:19,469 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:29:19,469 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:29:19,472 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:29:19,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:29:19,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:29:19,474 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:29:19,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:29:19,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:29:19,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:29:19,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:29:19,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:29:19,480 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 07:29:19,480 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 07:29:19,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:29:19,481 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 07:29:19,481 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:29:19,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:29:19,483 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:29:19,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:29:19,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:29:19,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:29:19,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:29:19,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:29:19,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:29:19,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:29:19,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:29:19,486 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 07:29:19,486 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 07:29:19,487 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:29:19,488 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:29:19,488 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_e1d64a22-c3a7-4da5-879a-92352a41e56f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 487cb753ab668f0dc3893a3ab2fa6b5020a9a953baa1eebb275c5ff36ca3ae95 [2024-11-09 07:29:19,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:29:19,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:29:19,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:29:19,982 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:29:19,983 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:29:19,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/floats-cdfpl/newton_3_1.i Unable to find full path for "g++" [2024-11-09 07:29:22,222 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:29:22,521 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:29:22,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/sv-benchmarks/c/floats-cdfpl/newton_3_1.i [2024-11-09 07:29:22,530 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/data/4ad32bcc0/70927f9076464915b974309ce8f4960a/FLAG25917430a [2024-11-09 07:29:22,829 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/data/4ad32bcc0/70927f9076464915b974309ce8f4960a [2024-11-09 07:29:22,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:29:22,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:29:22,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:29:22,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:29:22,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:29:22,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:29:22" (1/1) ... [2024-11-09 07:29:22,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ce186c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:22, skipping insertion in model container [2024-11-09 07:29:22,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:29:22" (1/1) ... [2024-11-09 07:29:22,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:29:23,133 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_e1d64a22-c3a7-4da5-879a-92352a41e56f/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2024-11-09 07:29:23,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:29:23,188 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:29:23,252 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_e1d64a22-c3a7-4da5-879a-92352a41e56f/sv-benchmarks/c/floats-cdfpl/newton_3_1.i[1764,1777] [2024-11-09 07:29:23,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:29:23,289 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:29:23,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23 WrapperNode [2024-11-09 07:29:23,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:29:23,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:29:23,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:29:23,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:29:23,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (1/1) ... [2024-11-09 07:29:23,321 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (1/1) ... [2024-11-09 07:29:23,347 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2024-11-09 07:29:23,348 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:29:23,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:29:23,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:29:23,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:29:23,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (1/1) ... [2024-11-09 07:29:23,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (1/1) ... [2024-11-09 07:29:23,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (1/1) ... [2024-11-09 07:29:23,367 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (1/1) ... [2024-11-09 07:29:23,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (1/1) ... [2024-11-09 07:29:23,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (1/1) ... [2024-11-09 07:29:23,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (1/1) ... [2024-11-09 07:29:23,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (1/1) ... [2024-11-09 07:29:23,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:29:23,408 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:29:23,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:29:23,409 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:29:23,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (1/1) ... [2024-11-09 07:29:23,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:29:23,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:29:23,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:29:23,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:29:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:29:23,496 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-09 07:29:23,496 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-09 07:29:23,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 07:29:23,497 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-09 07:29:23,497 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-09 07:29:23,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:29:23,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:29:23,600 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:29:23,603 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:29:32,575 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-09 07:29:32,576 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:29:32,592 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:29:32,592 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:29:32,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:29:32 BoogieIcfgContainer [2024-11-09 07:29:32,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:29:32,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:29:32,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:29:32,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:29:32,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:29:22" (1/3) ... [2024-11-09 07:29:32,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab90147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:29:32, skipping insertion in model container [2024-11-09 07:29:32,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:29:23" (2/3) ... [2024-11-09 07:29:32,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab90147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:29:32, skipping insertion in model container [2024-11-09 07:29:32,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:29:32" (3/3) ... [2024-11-09 07:29:32,606 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_1.i [2024-11-09 07:29:32,627 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:29:32,628 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:29:32,692 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:29:32,701 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;@6df258bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:29:32,701 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:29:32,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:29:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 07:29:32,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:32,737 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:29:32,737 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:29:32,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:32,744 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2024-11-09 07:29:32,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:29:32,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630455086] [2024-11-09 07:29:32,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:32,762 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 07:29:32,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:29:32,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/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 07:29:32,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/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 07:29:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:36,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 07:29:36,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:29:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 07:29:36,654 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:29:36,655 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:29:36,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630455086] [2024-11-09 07:29:36,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630455086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:29:36,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:29:36,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:29:36,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989332982] [2024-11-09 07:29:36,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:29:36,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:29:36,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:29:36,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:29:36,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:29:36,698 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:29:36,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:36,734 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2024-11-09 07:29:36,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:29:36,737 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2024-11-09 07:29:36,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:36,747 INFO L225 Difference]: With dead ends: 49 [2024-11-09 07:29:36,747 INFO L226 Difference]: Without dead ends: 22 [2024-11-09 07:29:36,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 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 07:29:36,760 INFO L432 NwaCegarLoop]: 29 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, 29 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 07:29:36,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:29:36,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-09 07:29:36,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-09 07:29:36,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 07:29:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-11-09 07:29:36,817 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2024-11-09 07:29:36,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:36,819 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-11-09 07:29:36,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:29:36,820 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-09 07:29:36,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 07:29:36,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:36,824 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:29:36,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/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 07:29:37,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/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 07:29:37,025 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:29:37,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2024-11-09 07:29:37,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:29:37,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159321475] [2024-11-09 07:29:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:37,029 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 07:29:37,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:29:37,033 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/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 07:29:37,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1d64a22-c3a7-4da5-879a-92352a41e56f/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