./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-0.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2 --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 aa2d3a4d32419b470c0361de47444a015c2912d90722971545568c67ebc1d3c0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:27:02,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:27:02,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:27:02,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:27:02,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:27:02,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:27:02,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:27:02,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:27:02,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:27:02,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:27:02,979 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:27:02,979 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:27:02,980 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:27:02,980 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:27:02,981 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:27:02,982 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:27:02,982 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:27:02,983 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:27:02,983 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:27:02,983 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:27:02,984 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:27:02,984 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:27:02,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:27:02,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:27:02,986 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:27:02,987 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:27:02,987 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:27:02,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:27:02,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:27:02,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:27:02,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:27:02,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:27:02,989 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:27:02,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:27:02,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:27:02,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:27:02,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:27:02,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:27:02,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:02,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:27:02,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:27:02,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:27:02,993 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:27:02,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:27:02,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:27:02,995 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:27:02,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:27:02,995 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_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa2d3a4d32419b470c0361de47444a015c2912d90722971545568c67ebc1d3c0 [2024-11-02 12:27:03,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:27:03,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:27:03,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:27:03,315 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:27:03,315 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:27:03,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-0.i Unable to find full path for "g++" [2024-11-02 12:27:05,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:27:05,510 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:27:05,511 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-0.i [2024-11-02 12:27:05,523 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/data/24381d50a/b91697cb291a4990bb4256983c630082/FLAGdca79ecd3 [2024-11-02 12:27:05,880 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/data/24381d50a/b91697cb291a4990bb4256983c630082 [2024-11-02 12:27:05,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:27:05,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:27:05,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:05,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:27:05,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:27:05,892 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:05" (1/1) ... [2024-11-02 12:27:05,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a80a0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:05, skipping insertion in model container [2024-11-02 12:27:05,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:05" (1/1) ... [2024-11-02 12:27:05,918 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:27:06,097 WARN L251 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_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-0.i[916,929] [2024-11-02 12:27:06,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:06,180 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:27:06,196 WARN L251 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_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-0.i[916,929] [2024-11-02 12:27:06,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:06,251 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:27:06,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06 WrapperNode [2024-11-02 12:27:06,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:06,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:06,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:27:06,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:27:06,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (1/1) ... [2024-11-02 12:27:06,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (1/1) ... [2024-11-02 12:27:06,303 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2024-11-02 12:27:06,307 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:06,308 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:27:06,308 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:27:06,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:27:06,326 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (1/1) ... [2024-11-02 12:27:06,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (1/1) ... [2024-11-02 12:27:06,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (1/1) ... [2024-11-02 12:27:06,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (1/1) ... [2024-11-02 12:27:06,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (1/1) ... [2024-11-02 12:27:06,341 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (1/1) ... [2024-11-02 12:27:06,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (1/1) ... [2024-11-02 12:27:06,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (1/1) ... [2024-11-02 12:27:06,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:27:06,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:27:06,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:27:06,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:27:06,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (1/1) ... [2024-11-02 12:27:06,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:06,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:27:06,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:27:06,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:27:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:27:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:27:06,435 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:27:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:27:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:27:06,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:27:06,517 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:27:06,519 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:27:06,776 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-02 12:27:06,776 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:27:06,931 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:27:06,932 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:27:06,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:06 BoogieIcfgContainer [2024-11-02 12:27:06,933 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:27:06,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:27:06,936 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:27:06,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:27:06,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:27:05" (1/3) ... [2024-11-02 12:27:06,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d94b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:06, skipping insertion in model container [2024-11-02 12:27:06,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:06" (2/3) ... [2024-11-02 12:27:06,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61d94b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:06, skipping insertion in model container [2024-11-02 12:27:06,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:06" (3/3) ... [2024-11-02 12:27:06,946 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-0.i [2024-11-02 12:27:06,971 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:27:06,971 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:27:07,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:27:07,047 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;@391c5177, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:27:07,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:27:07,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 12:27:07,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-02 12:27:07,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:07,066 INFO L215 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:27:07,066 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:27:07,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:07,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1946176183, now seen corresponding path program 1 times [2024-11-02 12:27:07,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:27:07,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774021393] [2024-11-02 12:27:07,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:07,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:27:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:27:07,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:27:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:27:07,449 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:27:07,451 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:27:07,453 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:27:07,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:27:07,463 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:27:07,533 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:27:07,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:27:07 BoogieIcfgContainer [2024-11-02 12:27:07,537 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:27:07,538 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:27:07,538 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:27:07,538 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:27:07,539 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:06" (3/4) ... [2024-11-02 12:27:07,542 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:27:07,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:27:07,544 INFO L158 Benchmark]: Toolchain (without parser) took 1659.33ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 86.6MB in the beginning and 93.8MB in the end (delta: -7.2MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2024-11-02 12:27:07,544 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:27:07,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.84ms. Allocated memory is still 123.7MB. Free memory was 86.6MB in the beginning and 72.8MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 12:27:07,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.03ms. Allocated memory is still 123.7MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:27:07,546 INFO L158 Benchmark]: Boogie Preprocessor took 39.55ms. Allocated memory is still 123.7MB. Free memory was 70.7MB in the beginning and 69.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:27:07,547 INFO L158 Benchmark]: RCFGBuilder took 580.06ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 69.0MB in the beginning and 116.9MB in the end (delta: -47.9MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2024-11-02 12:27:07,548 INFO L158 Benchmark]: TraceAbstraction took 601.23ms. Allocated memory is still 151.0MB. Free memory was 116.9MB in the beginning and 94.9MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-02 12:27:07,549 INFO L158 Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 151.0MB. Free memory was 94.9MB in the beginning and 93.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:27:07,552 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory is still 65.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.84ms. Allocated memory is still 123.7MB. Free memory was 86.6MB in the beginning and 72.8MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.03ms. Allocated memory is still 123.7MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.55ms. Allocated memory is still 123.7MB. Free memory was 70.7MB in the beginning and 69.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 580.06ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 69.0MB in the beginning and 116.9MB in the end (delta: -47.9MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * TraceAbstraction took 601.23ms. Allocated memory is still 151.0MB. Free memory was 116.9MB in the beginning and 94.9MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.98ms. Allocated memory is still 151.0MB. Free memory was 94.9MB in the beginning and 93.8MB in the end (delta: 1.1MB). 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 25.8; [L23] unsigned char var_1_2 = 1; [L24] double var_1_3 = 128.2; [L25] double var_1_4 = 15.4; [L26] double var_1_5 = 5.25; [L27] unsigned char var_1_9 = 1; [L28] unsigned char var_1_10 = 100; [L29] unsigned char var_1_12 = 1; [L30] unsigned short int var_1_13 = 5; [L31] double last_1_var_1_5 = 5.25; [L32] unsigned char last_1_var_1_10 = 100; [L33] unsigned short int last_1_var_1_13 = 5; [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] CALL updateLastVariables() [L84] last_1_var_1_5 = var_1_5 [L85] last_1_var_1_10 = var_1_10 [L86] last_1_var_1_13 = var_1_13 [L96] RET updateLastVariables() [L97] CALL updateVariables() [L69] var_1_2 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L72] var_1_3 = __VERIFIER_nondet_double() [L73] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_4=77/5, var_1_5=21/4, var_1_9=1] [L74] var_1_4 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_5=21/4, var_1_9=1] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_5=21/4, var_1_9=1] [L76] var_1_9 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_5=21/4] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_5=21/4] [L78] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_5=21/4, var_1_9=1] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=1, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_5=21/4, var_1_9=1] [L79] var_1_12 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_5=21/4, var_1_9=1] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_5=21/4, var_1_9=1] [L81] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_5=21/4, var_1_9=1] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=5, var_1_1=129/5, var_1_2=1, var_1_5=21/4, var_1_9=1] [L97] RET updateVariables() [L98] CALL step() [L37] COND TRUE \read(var_1_9) [L38] COND TRUE (var_1_4 * (var_1_3 - 5.3)) <= last_1_var_1_5 [L39] var_1_13 = last_1_var_1_10 [L42] COND FALSE !((last_1_var_1_13 + last_1_var_1_13) < last_1_var_1_13) [L47] COND FALSE !(! var_1_2) [L50] var_1_1 = ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3))) [L52] COND TRUE (var_1_3 + (var_1_4 + var_1_1)) != var_1_1 [L53] COND TRUE \read(var_1_2) [L54] COND TRUE (- var_1_13) <= var_1_10 [L55] COND TRUE \read(var_1_9) [L56] var_1_5 = var_1_4 [L98] RET step() [L99] CALL, EXPR property() [L89-L90] return ((((! var_1_2) ? (var_1_1 == ((double) (var_1_3 - var_1_4))) : (var_1_1 == ((double) ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3)))))) && (((var_1_3 + (var_1_4 + var_1_1)) != var_1_1) ? (var_1_2 ? (((- var_1_13) <= var_1_10) ? (var_1_9 ? (var_1_5 == ((double) var_1_4)) : 1) : (var_1_5 == ((double) var_1_3))) : (var_1_5 == ((double) var_1_3))) : (var_1_5 == ((double) var_1_3)))) && (((last_1_var_1_13 + last_1_var_1_13) < last_1_var_1_13) ? ((last_1_var_1_13 > last_1_var_1_13) ? (var_1_10 == ((unsigned char) var_1_12)) : 1) : 1)) && (var_1_9 ? (((var_1_4 * (var_1_3 - 5.3)) <= last_1_var_1_5) ? (var_1_13 == ((unsigned short int) last_1_var_1_10)) : 1) : 1) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=100, var_1_1=21/4, var_1_2=1, var_1_3=21/4, var_1_4=21/4, var_1_5=21/4, var_1_9=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=100, last_1_var_1_13=5, last_1_var_1_5=21/4, var_1_10=100, var_1_12=254, var_1_13=100, var_1_1=21/4, var_1_2=1, var_1_3=21/4, var_1_4=21/4, var_1_5=21/4, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 8, 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=22occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 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 [2024-11-02 12:27:07,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/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_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2 --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 aa2d3a4d32419b470c0361de47444a015c2912d90722971545568c67ebc1d3c0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:27:10,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:27:10,429 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 12:27:10,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:27:10,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:27:10,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:27:10,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:27:10,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:27:10,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:27:10,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:27:10,491 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:27:10,491 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:27:10,491 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:27:10,492 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:27:10,492 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:27:10,493 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:27:10,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:27:10,494 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:27:10,494 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:27:10,494 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:27:10,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:27:10,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:27:10,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:27:10,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:27:10,501 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:27:10,501 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:27:10,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:27:10,502 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:27:10,502 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:27:10,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:27:10,503 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:27:10,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:27:10,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:27:10,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:27:10,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:27:10,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:10,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:27:10,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:27:10,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:27:10,507 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:27:10,508 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:27:10,508 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:27:10,508 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:27:10,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:27:10,509 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_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa2d3a4d32419b470c0361de47444a015c2912d90722971545568c67ebc1d3c0 [2024-11-02 12:27:10,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:27:11,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:27:11,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:27:11,034 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:27:11,035 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:27:11,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-0.i Unable to find full path for "g++" [2024-11-02 12:27:13,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:27:13,636 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:27:13,637 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-0.i [2024-11-02 12:27:13,645 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/data/7240b773d/35f9cbc23d554b669a52bb351cd44e25/FLAG5ece7863f [2024-11-02 12:27:13,659 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/data/7240b773d/35f9cbc23d554b669a52bb351cd44e25 [2024-11-02 12:27:13,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:27:13,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:27:13,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:13,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:27:13,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:27:13,673 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:13" (1/1) ... [2024-11-02 12:27:13,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223fac7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:13, skipping insertion in model container [2024-11-02 12:27:13,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:27:13" (1/1) ... [2024-11-02 12:27:13,705 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:27:13,943 WARN L251 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_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-0.i[916,929] [2024-11-02 12:27:14,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:14,033 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:27:14,046 WARN L251 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_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-0.i[916,929] [2024-11-02 12:27:14,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:27:14,104 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:27:14,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14 WrapperNode [2024-11-02 12:27:14,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:27:14,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:14,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:27:14,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:27:14,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (1/1) ... [2024-11-02 12:27:14,134 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (1/1) ... [2024-11-02 12:27:14,169 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2024-11-02 12:27:14,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:27:14,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:27:14,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:27:14,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:27:14,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (1/1) ... [2024-11-02 12:27:14,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (1/1) ... [2024-11-02 12:27:14,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (1/1) ... [2024-11-02 12:27:14,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (1/1) ... [2024-11-02 12:27:14,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (1/1) ... [2024-11-02 12:27:14,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (1/1) ... [2024-11-02 12:27:14,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (1/1) ... [2024-11-02 12:27:14,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (1/1) ... [2024-11-02 12:27:14,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:27:14,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:27:14,212 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:27:14,212 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:27:14,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (1/1) ... [2024-11-02 12:27:14,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:27:14,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:27:14,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:27:14,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:27:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:27:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:27:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:27:14,344 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:27:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:27:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:27:14,449 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:27:14,453 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:27:25,177 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-02 12:27:25,178 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:27:25,191 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:27:25,192 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:27:25,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:25 BoogieIcfgContainer [2024-11-02 12:27:25,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:27:25,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:27:25,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:27:25,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:27:25,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:27:13" (1/3) ... [2024-11-02 12:27:25,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7809ef98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:25, skipping insertion in model container [2024-11-02 12:27:25,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:27:14" (2/3) ... [2024-11-02 12:27:25,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7809ef98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:27:25, skipping insertion in model container [2024-11-02 12:27:25,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:27:25" (3/3) ... [2024-11-02 12:27:25,208 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-0.i [2024-11-02 12:27:25,227 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:27:25,228 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:27:25,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:27:25,318 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;@27a3215c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:27:25,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:27:25,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 12:27:25,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-02 12:27:25,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:25,332 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:27:25,332 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:27:25,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:25,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1631651389, now seen corresponding path program 1 times [2024-11-02 12:27:25,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:27:25,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004641669] [2024-11-02 12:27:25,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:25,353 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 [2024-11-02 12:27:25,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:27:25,357 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:27:25,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:27:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:25,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 12:27:25,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:27:25,991 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-02 12:27:25,991 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:27:25,992 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:27:25,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004641669] [2024-11-02 12:27:25,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004641669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:27:25,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:27:25,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:27:25,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83382985] [2024-11-02 12:27:25,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:27:26,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:27:26,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:27:26,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:27:26,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:27:26,028 INFO L87 Difference]: Start difference. First operand has 41 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 31 states have internal predecessors, (44), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-02 12:27:26,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:27:26,052 INFO L93 Difference]: Finished difference Result 74 states and 120 transitions. [2024-11-02 12:27:26,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:27:26,055 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2024-11-02 12:27:26,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:27:26,063 INFO L225 Difference]: With dead ends: 74 [2024-11-02 12:27:26,063 INFO L226 Difference]: Without dead ends: 36 [2024-11-02 12:27:26,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:27:26,071 INFO L432 NwaCegarLoop]: 49 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, 49 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 [2024-11-02 12:27:26,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:27:26,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-02 12:27:26,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-02 12:27:26,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-02 12:27:26,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2024-11-02 12:27:26,111 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 58 [2024-11-02 12:27:26,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:27:26,112 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2024-11-02 12:27:26,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-02 12:27:26,112 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2024-11-02 12:27:26,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-02 12:27:26,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:27:26,115 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:27:26,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:27:26,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:27:26,316 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:27:26,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:27:26,317 INFO L85 PathProgramCache]: Analyzing trace with hash -402914689, now seen corresponding path program 1 times [2024-11-02 12:27:26,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:27:26,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2076174919] [2024-11-02 12:27:26,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:27:26,318 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 [2024-11-02 12:27:26,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:27:26,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:27:26,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ea35f9-3fa8-4b25-8ba8-0ceb376a90a2/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-02 12:27:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:27:26,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 12:27:26,951 INFO L278 TraceCheckSpWp]: Computing forward predicates...