./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh --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 115863a410601bfe28083e59f2212cb531c98853477b5f37bf1c6feea96cfdd4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:02:36,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:02:36,876 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:02:36,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:02:36,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:02:36,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:02:36,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:02:36,908 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:02:36,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:02:36,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:02:36,909 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:02:36,910 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:02:36,910 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:02:36,911 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:02:36,911 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:02:36,912 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:02:36,912 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:02:36,913 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:02:36,913 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:02:36,914 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:02:36,914 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:02:36,917 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:02:36,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:02:36,918 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:02:36,918 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:02:36,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:02:36,919 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:02:36,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:02:36,920 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:02:36,920 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:02:36,921 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:02:36,921 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:02:36,921 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:02:36,921 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:02:36,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:02:36,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:02:36,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:02:36,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:02:36,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:02:36,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:02:36,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:02:36,923 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:02:36,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:02:36,924 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:02:36,924 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:02:36,924 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:02:36,924 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:02:36,924 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_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115863a410601bfe28083e59f2212cb531c98853477b5f37bf1c6feea96cfdd4 [2023-12-02 13:02:37,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:02:37,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:02:37,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:02:37,173 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:02:37,173 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:02:37,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/floats-cdfpl/sine_1.i [2023-12-02 13:02:39,954 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:02:40,102 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:02:40,103 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/sv-benchmarks/c/floats-cdfpl/sine_1.i [2023-12-02 13:02:40,109 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/data/7409627c0/8715eb849cb64c1fa8c8ffed405772aa/FLAG6ca5350b5 [2023-12-02 13:02:40,121 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/data/7409627c0/8715eb849cb64c1fa8c8ffed405772aa [2023-12-02 13:02:40,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:02:40,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:02:40,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:02:40,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:02:40,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:02:40,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cdbd3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40, skipping insertion in model container [2023-12-02 13:02:40,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,149 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:02:40,273 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/sv-benchmarks/c/floats-cdfpl/sine_1.i[1641,1654] [2023-12-02 13:02:40,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:02:40,287 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:02:40,302 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/sv-benchmarks/c/floats-cdfpl/sine_1.i[1641,1654] [2023-12-02 13:02:40,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:02:40,318 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:02:40,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40 WrapperNode [2023-12-02 13:02:40,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:02:40,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:02:40,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:02:40,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:02:40,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,346 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2023-12-02 13:02:40,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:02:40,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:02:40,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:02:40,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:02:40,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:02:40,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:02:40,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:02:40,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:02:40,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (1/1) ... [2023-12-02 13:02:40,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:02:40,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:02:40,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:02:40,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:02:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:02:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:02:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:02:40,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:02:40,504 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:02:40,505 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:02:40,572 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:02:40,604 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:02:40,604 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 13:02:40,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:02:40 BoogieIcfgContainer [2023-12-02 13:02:40,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:02:40,608 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:02:40,609 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:02:40,612 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:02:40,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:02:40" (1/3) ... [2023-12-02 13:02:40,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222b31bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:02:40, skipping insertion in model container [2023-12-02 13:02:40,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:40" (2/3) ... [2023-12-02 13:02:40,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222b31bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:02:40, skipping insertion in model container [2023-12-02 13:02:40,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:02:40" (3/3) ... [2023-12-02 13:02:40,615 INFO L112 eAbstractionObserver]: Analyzing ICFG sine_1.i [2023-12-02 13:02:40,634 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:02:40,634 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:02:40,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:02:40,677 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33864ec5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:02:40,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:02:40,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:02:40,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 13:02:40,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:02:40,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-12-02 13:02:40,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:02:40,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:02:40,690 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-12-02 13:02:40,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:02:40,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528753892] [2023-12-02 13:02:40,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:02:40,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:02:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:02:40,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:02:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:02:40,795 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:02:40,797 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:02:40,798 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:02:40,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:02:40,803 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:02:40,807 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:02:40,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:02:40 BoogieIcfgContainer [2023-12-02 13:02:40,821 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:02:40,822 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:02:40,822 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:02:40,822 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:02:40,822 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:02:40" (3/4) ... [2023-12-02 13:02:40,825 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:02:40,826 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:02:40,827 INFO L158 Benchmark]: Toolchain (without parser) took 702.13ms. Allocated memory is still 125.8MB. Free memory was 72.1MB in the beginning and 78.2MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:02:40,827 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:02:40,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.82ms. Allocated memory is still 125.8MB. Free memory was 72.0MB in the beginning and 61.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 13:02:40,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.57ms. Allocated memory is still 125.8MB. Free memory was 61.6MB in the beginning and 60.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:02:40,829 INFO L158 Benchmark]: Boogie Preprocessor took 16.35ms. Allocated memory is still 125.8MB. Free memory was 60.0MB in the beginning and 58.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:02:40,830 INFO L158 Benchmark]: RCFGBuilder took 242.23ms. Allocated memory is still 125.8MB. Free memory was 58.9MB in the beginning and 92.1MB in the end (delta: -33.1MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2023-12-02 13:02:40,830 INFO L158 Benchmark]: TraceAbstraction took 212.49ms. Allocated memory is still 125.8MB. Free memory was 91.3MB in the beginning and 78.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 13:02:40,831 INFO L158 Benchmark]: Witness Printer took 4.45ms. Allocated memory is still 125.8MB. Free memory was 78.7MB in the beginning and 78.2MB in the end (delta: 421.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:02:40,834 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 192.82ms. Allocated memory is still 125.8MB. Free memory was 72.0MB in the beginning and 61.6MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.57ms. Allocated memory is still 125.8MB. Free memory was 61.6MB in the beginning and 60.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.35ms. Allocated memory is still 125.8MB. Free memory was 60.0MB in the beginning and 58.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 242.23ms. Allocated memory is still 125.8MB. Free memory was 58.9MB in the beginning and 92.1MB in the end (delta: -33.1MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * TraceAbstraction took 212.49ms. Allocated memory is still 125.8MB. Free memory was 91.3MB in the beginning and 78.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.45ms. Allocated memory is still 125.8MB. Free memory was 78.7MB in the beginning and 78.2MB in the end (delta: 421.2kB). 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: 37]: 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 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 36, overapproximation of someBinaryArithmeticFLOAToperation at line 34. Possible FailurePath: [L29] float IN = __VERIFIER_nondet_float(); [L30] CALL assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L24] COND FALSE !(!cond) [L30] RET assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L32] float x = IN; [L34] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [IN=53, x=53] [L36] COND TRUE !(result <= 0.99 && result >= -0.99) VAL [IN=53, x=53] [L37] reach_error() VAL [IN=53, x=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, 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=6occurred 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, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 13:02:40,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh --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 115863a410601bfe28083e59f2212cb531c98853477b5f37bf1c6feea96cfdd4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:02:42,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:02:42,838 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 13:02:42,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:02:42,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:02:42,872 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:02:42,873 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:02:42,873 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:02:42,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:02:42,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:02:42,875 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:02:42,876 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:02:42,876 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:02:42,877 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:02:42,877 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:02:42,878 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:02:42,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:02:42,879 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:02:42,880 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:02:42,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:02:42,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:02:42,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:02:42,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:02:42,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:02:42,883 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:02:42,883 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:02:42,884 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:02:42,884 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:02:42,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:02:42,885 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:02:42,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:02:42,886 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:02:42,886 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:02:42,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:02:42,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:02:42,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:02:42,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:02:42,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:02:42,887 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:02:42,888 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:02:42,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:02:42,888 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:02:42,889 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:02:42,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:02:42,889 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115863a410601bfe28083e59f2212cb531c98853477b5f37bf1c6feea96cfdd4 [2023-12-02 13:02:43,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:02:43,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:02:43,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:02:43,191 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:02:43,192 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:02:43,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/floats-cdfpl/sine_1.i [2023-12-02 13:02:46,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:02:46,240 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:02:46,240 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/sv-benchmarks/c/floats-cdfpl/sine_1.i [2023-12-02 13:02:46,247 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/data/cb6eb9547/cc14940ffe1548c787d93046d4ed4eeb/FLAG97c8ba635 [2023-12-02 13:02:46,260 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/data/cb6eb9547/cc14940ffe1548c787d93046d4ed4eeb [2023-12-02 13:02:46,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:02:46,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:02:46,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:02:46,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:02:46,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:02:46,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4226ee0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46, skipping insertion in model container [2023-12-02 13:02:46,273 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,295 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:02:46,461 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/sv-benchmarks/c/floats-cdfpl/sine_1.i[1641,1654] [2023-12-02 13:02:46,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:02:46,481 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:02:46,498 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/sv-benchmarks/c/floats-cdfpl/sine_1.i[1641,1654] [2023-12-02 13:02:46,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:02:46,516 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:02:46,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46 WrapperNode [2023-12-02 13:02:46,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:02:46,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:02:46,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:02:46,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:02:46,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,534 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,553 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2023-12-02 13:02:46,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:02:46,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:02:46,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:02:46,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:02:46,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,573 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:02:46,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:02:46,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:02:46,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:02:46,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (1/1) ... [2023-12-02 13:02:46,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:02:46,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:02:46,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:02:46,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:02:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:02:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:02:46,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:02:46,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:02:46,712 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:02:46,714 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:02:49,291 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:02:49,320 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:02:49,321 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 13:02:49,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:02:49 BoogieIcfgContainer [2023-12-02 13:02:49,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:02:49,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:02:49,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:02:49,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:02:49,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:02:46" (1/3) ... [2023-12-02 13:02:49,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f535e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:02:49, skipping insertion in model container [2023-12-02 13:02:49,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:02:46" (2/3) ... [2023-12-02 13:02:49,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f535e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:02:49, skipping insertion in model container [2023-12-02 13:02:49,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:02:49" (3/3) ... [2023-12-02 13:02:49,331 INFO L112 eAbstractionObserver]: Analyzing ICFG sine_1.i [2023-12-02 13:02:49,351 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:02:49,351 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:02:49,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:02:49,402 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@737efc3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:02:49,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:02:49,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:02:49,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 13:02:49,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:02:49,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 13:02:49,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:02:49,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:02:49,419 INFO L85 PathProgramCache]: Analyzing trace with hash 49104602, now seen corresponding path program 1 times [2023-12-02 13:02:49,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:02:49,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750592562] [2023-12-02 13:02:49,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:02:49,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:02:49,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:02:49,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 13:02:49,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 13:02:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:02:49,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 13:02:49,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:02:49,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:02:49,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:02:49,987 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:02:49,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750592562] [2023-12-02 13:02:49,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1750592562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:02:49,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:02:49,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:02:49,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632563765] [2023-12-02 13:02:49,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:02:49,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:02:49,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:02:50,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:02:50,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:02:50,024 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:02:50,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:02:50,047 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2023-12-02 13:02:50,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:02:50,049 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-12-02 13:02:50,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:02:50,055 INFO L225 Difference]: With dead ends: 14 [2023-12-02 13:02:50,056 INFO L226 Difference]: Without dead ends: 6 [2023-12-02 13:02:50,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:02:50,062 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:02:50,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:02:50,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2023-12-02 13:02:50,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-12-02 13:02:50,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:02:50,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2023-12-02 13:02:50,092 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2023-12-02 13:02:50,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:02:50,092 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2023-12-02 13:02:50,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:02:50,093 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2023-12-02 13:02:50,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 13:02:50,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:02:50,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 13:02:50,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:02:50,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:02:50,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:02:50,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:02:50,295 INFO L85 PathProgramCache]: Analyzing trace with hash 49164184, now seen corresponding path program 1 times [2023-12-02 13:02:50,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:02:50,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247258467] [2023-12-02 13:02:50,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:02:50,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:02:50,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:02:50,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 13:02:50,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 13:02:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:02:52,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:04:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:04:37,853 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 13:04:37,853 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:04:37,855 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:04:37,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 13:04:38,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:04:38,060 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 13:04:38,063 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:04:38,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:04:38 BoogieIcfgContainer [2023-12-02 13:04:38,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:04:38,081 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:04:38,081 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:04:38,081 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:04:38,082 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:02:49" (3/4) ... [2023-12-02 13:04:38,082 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-02 13:04:38,117 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 13:04:38,117 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:04:38,118 INFO L158 Benchmark]: Toolchain (without parser) took 111854.35ms. Allocated memory is still 111.1MB. Free memory was 87.8MB in the beginning and 73.5MB in the end (delta: 14.3MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-12-02 13:04:38,119 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:04:38,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.56ms. Allocated memory is still 111.1MB. Free memory was 87.8MB in the beginning and 76.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 13:04:38,120 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.07ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 75.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:04:38,120 INFO L158 Benchmark]: Boogie Preprocessor took 27.48ms. Allocated memory is still 111.1MB. Free memory was 75.2MB in the beginning and 73.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:04:38,121 INFO L158 Benchmark]: RCFGBuilder took 2738.81ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 63.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 13:04:38,121 INFO L158 Benchmark]: TraceAbstraction took 108755.91ms. Allocated memory is still 111.1MB. Free memory was 62.6MB in the beginning and 75.6MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:04:38,122 INFO L158 Benchmark]: Witness Printer took 36.48ms. Allocated memory is still 111.1MB. Free memory was 75.5MB in the beginning and 73.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:04:38,124 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.56ms. Allocated memory is still 111.1MB. Free memory was 87.8MB in the beginning and 76.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.07ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 75.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.48ms. Allocated memory is still 111.1MB. Free memory was 75.2MB in the beginning and 73.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2738.81ms. Allocated memory is still 111.1MB. Free memory was 73.8MB in the beginning and 63.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 108755.91ms. Allocated memory is still 111.1MB. Free memory was 62.6MB in the beginning and 75.6MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 36.48ms. Allocated memory is still 111.1MB. Free memory was 75.5MB in the beginning and 73.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 37]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L29] float IN = __VERIFIER_nondet_float(); [L30] CALL assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L30] RET assume_abort_if_not(IN > -1.57079632679f && IN < 1.57079632679f) [L32] float x = IN; [L34] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [IN=1.5173296928405762, result=1.0058037042617798, x=1.5173296928405762] [L36] COND TRUE !(result <= 0.99 && result >= -0.99) VAL [IN=1.5173296928405762, result=1.0058037042617798, x=1.5173296928405762] [L37] reach_error() VAL [IN=1.5173296928405762, result=1.0058037042617798, x=1.5173296928405762] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 108.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 proved your program to be incorrect! [2023-12-02 13:04:38,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc64069-468a-4a8d-9f11-e3b55a26901a/bin/utaipan-verify-nQ1chXbOIh/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE