./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-46.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/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_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/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_7339512c-5d78-42c0-8f0d-fec06aef2c69/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 ca79e00de52f11d8ef4f7d7e899d1648e015c642ca9f0e470d7c5f9273658d6f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:22:14,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:22:14,802 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:22:14,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:22:14,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:22:14,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:22:14,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:22:14,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:22:14,833 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:22:14,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:22:14,835 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:22:14,835 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:22:14,836 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:22:14,836 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:22:14,837 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:22:14,837 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:22:14,838 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:22:14,838 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:22:14,839 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:22:14,840 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:22:14,840 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:22:14,841 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:22:14,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:22:14,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:22:14,843 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:22:14,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:22:14,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:22:14,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:22:14,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:22:14,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:22:14,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:22:14,846 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:22:14,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:22:14,847 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:22:14,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:22:14,847 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:22:14,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:22:14,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:14,848 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:22:14,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:22:14,849 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:22:14,849 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:22:14,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:22:14,849 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:22:14,850 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:22:14,850 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:22:14,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:22:14,850 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_7339512c-5d78-42c0-8f0d-fec06aef2c69/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca79e00de52f11d8ef4f7d7e899d1648e015c642ca9f0e470d7c5f9273658d6f [2023-12-02 12:22:15,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:22:15,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:22:15,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:22:15,084 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:22:15,084 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:22:15,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-46.i [2023-12-02 12:22:17,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:22:18,078 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:22:18,078 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-46.i [2023-12-02 12:22:18,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/data/a8d0503d5/908c77d9138c471bbc9406f33db2136a/FLAG5d6127e35 [2023-12-02 12:22:18,098 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/data/a8d0503d5/908c77d9138c471bbc9406f33db2136a [2023-12-02 12:22:18,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:22:18,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:22:18,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:18,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:22:18,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:22:18,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b125ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18, skipping insertion in model container [2023-12-02 12:22:18,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,131 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:22:18,251 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_7339512c-5d78-42c0-8f0d-fec06aef2c69/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-46.i[917,930] [2023-12-02 12:22:18,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:18,306 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:22:18,321 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_7339512c-5d78-42c0-8f0d-fec06aef2c69/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-46.i[917,930] [2023-12-02 12:22:18,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:18,360 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:22:18,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18 WrapperNode [2023-12-02 12:22:18,360 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:18,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:18,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:22:18,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:22:18,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,408 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2023-12-02 12:22:18,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:18,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:22:18,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:22:18,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:22:18,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:22:18,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:22:18,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:22:18,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:22:18,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (1/1) ... [2023-12-02 12:22:18,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:18,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:22:18,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:22:18,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:22:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:22:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 12:22:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 12:22:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:22:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:22:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:22:18,625 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:22:18,629 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:22:18,971 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:22:19,120 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:22:19,120 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:22:19,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:19 BoogieIcfgContainer [2023-12-02 12:22:19,122 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:22:19,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:22:19,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:22:19,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:22:19,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:22:18" (1/3) ... [2023-12-02 12:22:19,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7581298f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:19, skipping insertion in model container [2023-12-02 12:22:19,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:18" (2/3) ... [2023-12-02 12:22:19,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7581298f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:19, skipping insertion in model container [2023-12-02 12:22:19,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:19" (3/3) ... [2023-12-02 12:22:19,132 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-46.i [2023-12-02 12:22:19,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:22:19,163 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:22:19,217 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:22:19,223 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;@6277e3e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:22:19,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:22:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 12:22:19,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 12:22:19,234 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:19,234 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:19,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:19,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:19,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1254405865, now seen corresponding path program 1 times [2023-12-02 12:22:19,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:19,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768903661] [2023-12-02 12:22:19,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:19,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:19,361 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 12:22:19,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1357723657] [2023-12-02 12:22:19,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:19,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:22:19,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:22:19,368 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:22:19,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:22:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:22:19,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 12:22:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:22:19,690 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 12:22:19,692 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 12:22:19,693 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 12:22:19,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 12:22:19,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 12:22:19,899 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 12:22:19,902 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:22:19,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:22:19 BoogieIcfgContainer [2023-12-02 12:22:19,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:22:19,957 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:22:19,957 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:22:19,957 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:22:19,958 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:19" (3/4) ... [2023-12-02 12:22:19,959 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 12:22:19,961 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:22:19,962 INFO L158 Benchmark]: Toolchain (without parser) took 1859.92ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 112.1MB in the beginning and 123.6MB in the end (delta: -11.6MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2023-12-02 12:22:19,962 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:22:19,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.71ms. Allocated memory is still 148.9MB. Free memory was 111.9MB in the beginning and 99.4MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 12:22:19,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.91ms. Allocated memory is still 148.9MB. Free memory was 99.4MB in the beginning and 97.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:22:19,964 INFO L158 Benchmark]: Boogie Preprocessor took 32.29ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 95.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:22:19,965 INFO L158 Benchmark]: RCFGBuilder took 679.90ms. Allocated memory is still 148.9MB. Free memory was 95.3MB in the beginning and 62.7MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-12-02 12:22:19,966 INFO L158 Benchmark]: TraceAbstraction took 831.12ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 61.8MB in the beginning and 123.6MB in the end (delta: -61.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:22:19,966 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 180.4MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:22:19,969 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.71ms. Allocated memory is still 148.9MB. Free memory was 111.9MB in the beginning and 99.4MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.91ms. Allocated memory is still 148.9MB. Free memory was 99.4MB in the beginning and 97.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.29ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 95.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 679.90ms. Allocated memory is still 148.9MB. Free memory was 95.3MB in the beginning and 62.7MB in the end (delta: 32.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 831.12ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 61.8MB in the beginning and 123.6MB in the end (delta: -61.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 180.4MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 45, overapproximation of bitwiseOr at line 63. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] double var_1_2 = 31.75; [L24] signed char var_1_4 = -8; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 1; [L28] unsigned char var_1_9 = 1; [L29] signed short int var_1_10 = -4; [L30] signed short int var_1_12 = 32; [L31] signed char var_1_13 = -25; [L32] signed char var_1_16 = 4; [L33] unsigned char last_1_var_1_1 = 1; [L34] signed short int last_1_var_1_10 = -4; [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] CALL updateLastVariables() [L96] last_1_var_1_1 = var_1_1 [L97] last_1_var_1_10 = var_1_10 [L107] RET updateLastVariables() [L108] CALL updateVariables() [L73] var_1_2 = __VERIFIER_nondet_double() [L74] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-8, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-8, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L75] var_1_4 = __VERIFIER_nondet_char() [L76] CALL assume_abort_if_not(var_1_4 >= -128) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_4 >= -128) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L77] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L78] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L79] var_1_6 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_7=0, var_1_8=1, var_1_9=1] [L81] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L82] var_1_7 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_8=1, var_1_9=1] [L84] CALL assume_abort_if_not(var_1_7 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_7 <= 0) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L85] var_1_9 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_9 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_9 >= 1) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L87] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=32, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L88] var_1_12 = __VERIFIER_nondet_short() [L89] CALL assume_abort_if_not(var_1_12 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=260, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_12 >= -1) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=260, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L90] CALL assume_abort_if_not(var_1_12 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=260, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_12 <= 32766) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=260, var_1_13=-25, var_1_16=4, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L91] var_1_16 = __VERIFIER_nondet_char() [L92] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=260, var_1_13=-25, var_1_16=-26, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=260, var_1_13=-25, var_1_16=-26, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L93] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=260, var_1_13=-25, var_1_16=-26, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=-4, var_1_12=260, var_1_13=-25, var_1_16=-26, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L108] RET updateVariables() [L109] CALL step() [L38] COND FALSE !(last_1_var_1_10 <= (var_1_12 / var_1_4)) [L43] signed long int stepLocal_1 = (((var_1_4) < (var_1_13)) ? (var_1_4) : (var_1_13)); [L44] signed long int stepLocal_0 = var_1_13 / var_1_4; [L45] COND FALSE !((- var_1_2) >= 16.75) [L60] var_1_1 = 1 [L62] signed char stepLocal_2 = var_1_13; [L63] EXPR var_1_13 | var_1_13 [L63] COND TRUE ((var_1_13 | var_1_13) + var_1_4) < stepLocal_2 [L64] var_1_10 = (var_1_12 - 256) [L68] COND FALSE !(1 == var_1_4) [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR ((((- var_1_2) >= 16.75) ? (((var_1_13 / var_1_4) >= var_1_13) ? ((((((var_1_4) < (var_1_13)) ? (var_1_4) : (var_1_13))) > -32) ? (var_1_1 == ((unsigned char) 0)) : (var_1_1 == ((unsigned char) (var_1_6 || var_1_7)))) : (var_1_6 ? (var_1_1 == ((unsigned char) 1)) : (var_1_1 == ((unsigned char) var_1_7)))) : (var_1_1 == ((unsigned char) 1))) && ((1 == var_1_4) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && ((((var_1_13 | var_1_13) + var_1_4) < var_1_13) ? (var_1_10 == ((signed short int) (var_1_12 - 256))) : (var_1_10 == ((signed short int) 128))) [L100-L101] return (((((- var_1_2) >= 16.75) ? (((var_1_13 / var_1_4) >= var_1_13) ? ((((((var_1_4) < (var_1_13)) ? (var_1_4) : (var_1_13))) > -32) ? (var_1_1 == ((unsigned char) 0)) : (var_1_1 == ((unsigned char) (var_1_6 || var_1_7)))) : (var_1_6 ? (var_1_1 == ((unsigned char) 1)) : (var_1_1 == ((unsigned char) var_1_7)))) : (var_1_1 == ((unsigned char) 1))) && ((1 == var_1_4) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && ((((var_1_13 | var_1_13) + var_1_4) < var_1_13) ? (var_1_10 == ((signed short int) (var_1_12 - 256))) : (var_1_10 == ((signed short int) 128)))) && ((last_1_var_1_10 <= (var_1_12 / var_1_4)) ? (last_1_var_1_1 ? (var_1_13 == ((signed char) var_1_16)) : 1) : 1) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=4, var_1_12=260, var_1_13=-25, var_1_16=-26, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=-4, last_1_var_1_1=1, var_1_10=4, var_1_12=260, var_1_13=-25, var_1_16=-26, var_1_1=1, var_1_4=-5, var_1_6=0, var_1_7=0, var_1_8=1, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 14, 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=30occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 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 12:22:19,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/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_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-46.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/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_7339512c-5d78-42c0-8f0d-fec06aef2c69/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 ca79e00de52f11d8ef4f7d7e899d1648e015c642ca9f0e470d7c5f9273658d6f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:22:21,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:22:22,024 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 12:22:22,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:22:22,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:22:22,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:22:22,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:22:22,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:22:22,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:22:22,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:22:22,061 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:22:22,062 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:22:22,063 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:22:22,063 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:22:22,064 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:22:22,065 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:22:22,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:22:22,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:22:22,067 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:22:22,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:22:22,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:22:22,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:22:22,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:22:22,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:22:22,070 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 12:22:22,071 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 12:22:22,071 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 12:22:22,071 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:22:22,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:22:22,072 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:22:22,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:22:22,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 12:22:22,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:22:22,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:22:22,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:22,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:22:22,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:22:22,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:22:22,075 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 12:22:22,075 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 12:22:22,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:22:22,076 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:22:22,076 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:22:22,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:22:22,076 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_7339512c-5d78-42c0-8f0d-fec06aef2c69/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca79e00de52f11d8ef4f7d7e899d1648e015c642ca9f0e470d7c5f9273658d6f [2023-12-02 12:22:22,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:22:22,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:22:22,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:22:22,415 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:22:22,415 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:22:22,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-46.i [2023-12-02 12:22:25,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:22:25,496 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:22:25,497 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-46.i [2023-12-02 12:22:25,504 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/data/62cd0248f/fc75a3b44ed74b34aabb3208e84fd0c4/FLAG99fd461b6 [2023-12-02 12:22:25,517 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/data/62cd0248f/fc75a3b44ed74b34aabb3208e84fd0c4 [2023-12-02 12:22:25,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:22:25,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:22:25,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:25,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:22:25,527 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:22:25,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f32b6f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25, skipping insertion in model container [2023-12-02 12:22:25,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:22:25,674 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_7339512c-5d78-42c0-8f0d-fec06aef2c69/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-46.i[917,930] [2023-12-02 12:22:25,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:25,729 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:22:25,740 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_7339512c-5d78-42c0-8f0d-fec06aef2c69/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-46.i[917,930] [2023-12-02 12:22:25,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:25,776 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:22:25,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25 WrapperNode [2023-12-02 12:22:25,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:25,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:25,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:22:25,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:22:25,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,817 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2023-12-02 12:22:25,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:25,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:22:25,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:22:25,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:22:25,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,831 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:22:25,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:22:25,854 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:22:25,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:22:25,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (1/1) ... [2023-12-02 12:22:25,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:25,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:22:25,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:22:25,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:22:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:22:25,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 12:22:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 12:22:25,933 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 12:22:25,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:22:25,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:22:26,012 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:22:26,014 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:22:26,379 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:22:26,427 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:22:26,427 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:22:26,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:26 BoogieIcfgContainer [2023-12-02 12:22:26,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:22:26,431 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:22:26,431 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:22:26,434 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:22:26,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:22:25" (1/3) ... [2023-12-02 12:22:26,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e432a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:26, skipping insertion in model container [2023-12-02 12:22:26,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:25" (2/3) ... [2023-12-02 12:22:26,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e432a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:26, skipping insertion in model container [2023-12-02 12:22:26,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:26" (3/3) ... [2023-12-02 12:22:26,438 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-46.i [2023-12-02 12:22:26,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:22:26,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:22:26,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:22:26,507 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;@32a49006, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:22:26,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:22:26,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 12:22:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 12:22:26,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:26,522 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:26,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:26,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:26,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1384465527, now seen corresponding path program 1 times [2023-12-02 12:22:26,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:22:26,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333929890] [2023-12-02 12:22:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:26,539 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 12:22:26,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:22:26,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/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 12:22:26,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/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 12:22:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:26,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 12:22:26,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:22:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 12:22:27,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 12:22:27,129 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 12:22:27,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333929890] [2023-12-02 12:22:27,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333929890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:27,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:27,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 12:22:27,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531136785] [2023-12-02 12:22:27,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:27,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:22:27,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 12:22:27,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:22:27,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:22:27,168 INFO L87 Difference]: Start difference. First operand has 44 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 28 states have internal predecessors, (40), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 12:22:27,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:27,579 INFO L93 Difference]: Finished difference Result 139 states and 247 transitions. [2023-12-02 12:22:27,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 12:22:27,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2023-12-02 12:22:27,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:27,591 INFO L225 Difference]: With dead ends: 139 [2023-12-02 12:22:27,591 INFO L226 Difference]: Without dead ends: 96 [2023-12-02 12:22:27,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-02 12:22:27,598 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 34 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:27,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 177 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 12:22:27,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-02 12:22:27,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2023-12-02 12:22:27,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 59 states have internal predecessors, (77), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 12:22:27,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 135 transitions. [2023-12-02 12:22:27,654 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 135 transitions. Word has length 88 [2023-12-02 12:22:27,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:27,656 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 135 transitions. [2023-12-02 12:22:27,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 12:22:27,656 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 135 transitions. [2023-12-02 12:22:27,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 12:22:27,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:27,660 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:27,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/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 12:22:27,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/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 12:22:27,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:27,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:27,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1384525109, now seen corresponding path program 1 times [2023-12-02 12:22:27,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:22:27,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061892583] [2023-12-02 12:22:27,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:27,866 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 12:22:27,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:22:27,867 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/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 12:22:27,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7339512c-5d78-42c0-8f0d-fec06aef2c69/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 12:22:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:28,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 12:22:28,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:28:03,390 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 196 proven. 24 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-12-02 12:28:03,390 INFO L327 TraceCheckSpWp]: Computing backward predicates...