./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-45.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-45.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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_9e70a537-1775-473b-8242-5abde3015bdf/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 0fa54214fa0e14b4541009c1f03168f6186b3667ce3e38d42d4698c79af003be --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:22:20,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:22:20,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:22:20,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:22:20,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:22:20,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:22:20,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:22:20,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:22:20,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:22:20,546 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:22:20,546 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:22:20,547 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:22:20,548 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:22:20,548 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:22:20,549 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:22:20,549 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:22:20,550 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:22:20,551 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:22:20,551 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:22:20,552 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:22:20,552 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:22:20,553 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:22:20,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:22:20,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:22:20,555 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:22:20,556 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:22:20,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:22:20,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:22:20,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:22:20,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:22:20,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:22:20,558 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:22:20,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:22:20,559 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:22:20,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:22:20,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:22:20,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:22:20,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:20,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:22:20,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:22:20,561 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:22:20,561 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:22:20,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:22:20,562 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:22:20,562 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:22:20,562 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:22:20,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:22:20,562 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_9e70a537-1775-473b-8242-5abde3015bdf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fa54214fa0e14b4541009c1f03168f6186b3667ce3e38d42d4698c79af003be [2023-12-02 12:22:20,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:22:20,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:22:20,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:22:20,804 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:22:20,804 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:22:20,806 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-45.i [2023-12-02 12:22:23,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:22:23,725 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:22:23,725 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-45.i [2023-12-02 12:22:23,735 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/data/0e08fee46/d2b57d37721a454688fe9ed438b1c71c/FLAG3d98ecaa3 [2023-12-02 12:22:23,749 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/data/0e08fee46/d2b57d37721a454688fe9ed438b1c71c [2023-12-02 12:22:23,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:22:23,753 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:22:23,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:23,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:22:23,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:22:23,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:23" (1/1) ... [2023-12-02 12:22:23,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f02dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:23, skipping insertion in model container [2023-12-02 12:22:23,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:23" (1/1) ... [2023-12-02 12:22:23,791 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:22:23,923 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_9e70a537-1775-473b-8242-5abde3015bdf/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-45.i[917,930] [2023-12-02 12:22:23,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:23,981 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:22:23,992 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_9e70a537-1775-473b-8242-5abde3015bdf/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-45.i[917,930] [2023-12-02 12:22:24,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:24,033 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:22:24,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24 WrapperNode [2023-12-02 12:22:24,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:24,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:24,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:22:24,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:22:24,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (1/1) ... [2023-12-02 12:22:24,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (1/1) ... [2023-12-02 12:22:24,094 INFO L138 Inliner]: procedures = 26, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 134 [2023-12-02 12:22:24,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:24,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:22:24,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:22:24,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:22:24,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (1/1) ... [2023-12-02 12:22:24,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (1/1) ... [2023-12-02 12:22:24,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (1/1) ... [2023-12-02 12:22:24,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (1/1) ... [2023-12-02 12:22:24,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (1/1) ... [2023-12-02 12:22:24,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (1/1) ... [2023-12-02 12:22:24,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (1/1) ... [2023-12-02 12:22:24,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (1/1) ... [2023-12-02 12:22:24,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:22:24,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:22:24,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:22:24,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:22:24,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (1/1) ... [2023-12-02 12:22:24,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:24,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:22:24,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:22:24,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:22:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:22:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 12:22:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 12:22:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:22:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:22:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:22:24,309 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:22:24,311 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:22:24,668 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:22:24,781 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:22:24,781 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:22:24,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:24 BoogieIcfgContainer [2023-12-02 12:22:24,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:22:24,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:22:24,787 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:22:24,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:22:24,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:22:23" (1/3) ... [2023-12-02 12:22:24,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f50417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:24, skipping insertion in model container [2023-12-02 12:22:24,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:24" (2/3) ... [2023-12-02 12:22:24,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f50417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:24, skipping insertion in model container [2023-12-02 12:22:24,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:24" (3/3) ... [2023-12-02 12:22:24,794 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-45.i [2023-12-02 12:22:24,814 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:22:24,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:22:24,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:22:24,874 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;@72499a23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:22:24,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:22:24,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-02 12:22:24,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 12:22:24,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:24,891 INFO L195 NwaCegarLoop]: trace histogram [25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:24,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:24,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:24,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1099349288, now seen corresponding path program 1 times [2023-12-02 12:22:24,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:22:24,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624156857] [2023-12-02 12:22:24,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:24,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:22:25,094 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 12:22:25,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796867412] [2023-12-02 12:22:25,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:25,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:22:25,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:22:25,097 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:22:25,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:22:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:22:25,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 12:22:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:22:25,419 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 12:22:25,422 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 12:22:25,423 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 12:22:25,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 12:22:25,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 12:22:25,631 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 12:22:25,636 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:22:25,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:22:25 BoogieIcfgContainer [2023-12-02 12:22:25,717 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:22:25,718 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:22:25,718 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:22:25,718 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:22:25,719 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:24" (3/4) ... [2023-12-02 12:22:25,721 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 12:22:25,722 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:22:25,724 INFO L158 Benchmark]: Toolchain (without parser) took 1970.17ms. Allocated memory was 155.2MB in the beginning and 211.8MB in the end (delta: 56.6MB). Free memory was 108.6MB in the beginning and 127.1MB in the end (delta: -18.5MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2023-12-02 12:22:25,724 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 155.2MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:22:25,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.83ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 95.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 12:22:25,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.26ms. Allocated memory is still 155.2MB. Free memory was 95.6MB in the beginning and 92.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:22:25,726 INFO L158 Benchmark]: Boogie Preprocessor took 38.63ms. Allocated memory is still 155.2MB. Free memory was 92.4MB in the beginning and 90.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:22:25,727 INFO L158 Benchmark]: RCFGBuilder took 648.29ms. Allocated memory was 155.2MB in the beginning and 211.8MB in the end (delta: 56.6MB). Free memory was 90.6MB in the beginning and 168.1MB in the end (delta: -77.5MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-12-02 12:22:25,728 INFO L158 Benchmark]: TraceAbstraction took 930.61ms. Allocated memory is still 211.8MB. Free memory was 166.9MB in the beginning and 127.1MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-12-02 12:22:25,728 INFO L158 Benchmark]: Witness Printer took 4.60ms. Allocated memory is still 211.8MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:22:25,732 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 155.2MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.83ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 95.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.26ms. Allocated memory is still 155.2MB. Free memory was 95.6MB in the beginning and 92.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.63ms. Allocated memory is still 155.2MB. Free memory was 92.4MB in the beginning and 90.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 648.29ms. Allocated memory was 155.2MB in the beginning and 211.8MB in the end (delta: 56.6MB). Free memory was 90.6MB in the beginning and 168.1MB in the end (delta: -77.5MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * TraceAbstraction took 930.61ms. Allocated memory is still 211.8MB. Free memory was 166.9MB in the beginning and 127.1MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 4.60ms. Allocated memory is still 211.8MB. Free memory is still 127.1MB. 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 56, overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someBinaryArithmeticDOUBLEoperation at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 999999.2; [L23] unsigned short int var_1_2 = 5; [L24] signed long int var_1_4 = -2; [L25] double var_1_6 = 0.0; [L26] double var_1_7 = 5.9; [L27] double var_1_8 = 255.6; [L28] float var_1_9 = 25.5; [L29] unsigned char var_1_10 = 0; [L30] float var_1_11 = 0.0; [L31] unsigned char var_1_12 = 1; [L32] unsigned char var_1_13 = 0; [L33] unsigned char var_1_14 = 0; [L34] unsigned char var_1_15 = 0; [L35] unsigned char var_1_16 = 1; [L36] unsigned char var_1_17 = 1; [L37] unsigned char var_1_18 = 64; [L38] signed char var_1_19 = -10; [L39] unsigned char var_1_20 = 5; [L40] unsigned char last_1_var_1_18 = 64; [L112] isInitial = 1 [L113] FCALL initially() [L114] COND TRUE 1 [L115] CALL updateLastVariables() [L105] last_1_var_1_18 = var_1_18 [L115] RET updateLastVariables() [L116] CALL updateVariables() [L64] var_1_2 = __VERIFIER_nondet_ushort() [L65] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-2, var_1_6=0, var_1_7=59/10, var_1_8=1278/5, var_1_9=51/2] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-2, var_1_6=0, var_1_7=59/10, var_1_8=1278/5, var_1_9=51/2] [L66] CALL assume_abort_if_not(var_1_2 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-2, var_1_6=0, var_1_7=59/10, var_1_8=1278/5, var_1_9=51/2] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_2 <= 65535) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-2, var_1_6=0, var_1_7=59/10, var_1_8=1278/5, var_1_9=51/2] [L67] var_1_4 = __VERIFIER_nondet_long() [L68] CALL assume_abort_if_not(var_1_4 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_6=0, var_1_7=59/10, var_1_8=1278/5, var_1_9=51/2] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_4 >= -2147483648) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_6=0, var_1_7=59/10, var_1_8=1278/5, var_1_9=51/2] [L69] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_6=0, var_1_7=59/10, var_1_8=1278/5, var_1_9=51/2] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_6=0, var_1_7=59/10, var_1_8=1278/5, var_1_9=51/2] [L70] var_1_6 = __VERIFIER_nondet_double() [L71] CALL assume_abort_if_not((var_1_6 >= 4611686.018427382800e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_7=59/10, var_1_8=1278/5, var_1_9=51/2] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not((var_1_6 >= 4611686.018427382800e+12F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_7=59/10, var_1_8=1278/5, var_1_9=51/2] [L72] var_1_7 = __VERIFIER_nondet_double() [L73] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_8=1278/5, var_1_9=51/2] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_8=1278/5, var_1_9=51/2] [L74] var_1_8 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=0, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L76] var_1_10 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_18=64, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L78] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_11=0, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L79] var_1_11 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L81] var_1_13 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L83] CALL assume_abort_if_not(var_1_13 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_13 <= 0) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L84] var_1_14 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L86] CALL assume_abort_if_not(var_1_14 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_14 <= 0) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=0, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L87] var_1_15 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L89] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L90] var_1_16 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L92] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L93] var_1_17 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_17 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_17 >= 1) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L95] CALL assume_abort_if_not(var_1_17 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_17 <= 1) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=-10, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L96] var_1_19 = __VERIFIER_nondet_char() [L97] CALL assume_abort_if_not(var_1_19 >= -128) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=127, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_19 >= -128) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=127, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L98] CALL assume_abort_if_not(var_1_19 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=127, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_19 <= 127) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=127, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L99] CALL assume_abort_if_not(var_1_19 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=127, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_19 != 0) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=127, var_1_1=4999996/5, var_1_20=5, var_1_4=-57280, var_1_9=51/2] [L100] var_1_20 = __VERIFIER_nondet_uchar() [L101] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=127, var_1_1=4999996/5, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=127, var_1_1=4999996/5, var_1_4=-57280, var_1_9=51/2] [L102] CALL assume_abort_if_not(var_1_20 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=127, var_1_1=4999996/5, var_1_20=0, var_1_4=-57280, var_1_9=51/2] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_20 <= 254) VAL [isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=1, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=64, var_1_19=127, var_1_1=4999996/5, var_1_20=0, var_1_4=-57280, var_1_9=51/2] [L116] RET updateVariables() [L117] CALL step() [L44] COND TRUE ((var_1_2 + var_1_4) / var_1_19) != last_1_var_1_18 [L45] var_1_18 = var_1_20 [L47] COND FALSE !((var_1_18 / 32) < (((((var_1_18 + var_1_18)) < (var_1_18)) ? ((var_1_18 + var_1_18)) : (var_1_18)))) [L50] var_1_1 = (var_1_8 - var_1_7) [L52] COND TRUE var_1_18 == var_1_18 [L53] COND TRUE \read(var_1_10) [L54] var_1_12 = (var_1_13 || var_1_14) [L59] COND FALSE !(\read(var_1_12)) [L117] RET step() [L118] CALL, EXPR property() [L108-L109] return (((((var_1_18 / 32) < (((((var_1_18 + var_1_18)) < (var_1_18)) ? ((var_1_18 + var_1_18)) : (var_1_18)))) ? (var_1_1 == ((double) ((var_1_6 - var_1_7) - var_1_8))) : (var_1_1 == ((double) (var_1_8 - var_1_7)))) && (var_1_12 ? (var_1_9 == ((float) (((((var_1_8) < (var_1_6)) ? (var_1_8) : (var_1_6))) - (var_1_11 - 0.8f)))) : 1)) && ((var_1_18 == var_1_18) ? (var_1_10 ? (var_1_12 == ((unsigned char) (var_1_13 || var_1_14))) : (var_1_12 == ((unsigned char) (((var_1_8 >= var_1_1) || var_1_15) && ((var_1_13 || var_1_16) && var_1_17))))) : 1)) && ((((var_1_2 + var_1_4) / var_1_19) != last_1_var_1_18) ? (var_1_18 == ((unsigned char) var_1_20)) : 1) ; [L118] RET, EXPR property() [L118] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=127, var_1_20=0, var_1_2=65535, var_1_4=-57280, var_1_9=51/2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_18=64, var_1_10=1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=1, var_1_16=1, var_1_17=1, var_1_18=0, var_1_19=127, var_1_20=0, var_1_2=65535, var_1_4=-57280, var_1_9=51/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 25, 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=48occurred 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, 93 NumberOfCodeBlocks, 93 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 12:22:25,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-45.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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_9e70a537-1775-473b-8242-5abde3015bdf/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 0fa54214fa0e14b4541009c1f03168f6186b3667ce3e38d42d4698c79af003be --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:22:27,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:22:27,929 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 12:22:27,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:22:27,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:22:27,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:22:27,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:22:27,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:22:27,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:22:27,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:22:27,972 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:22:27,972 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:22:27,973 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:22:27,973 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:22:27,974 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:22:27,974 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:22:27,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:22:27,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:22:27,976 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:22:27,977 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:22:27,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:22:27,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:22:27,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:22:27,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:22:27,980 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 12:22:27,980 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 12:22:27,981 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 12:22:27,981 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:22:27,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:22:27,982 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:22:27,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:22:27,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 12:22:27,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:22:27,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:22:27,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:27,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:22:27,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:22:27,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:22:27,985 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 12:22:27,985 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 12:22:27,985 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:22:27,985 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:22:27,986 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:22:27,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:22:27,986 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_9e70a537-1775-473b-8242-5abde3015bdf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fa54214fa0e14b4541009c1f03168f6186b3667ce3e38d42d4698c79af003be [2023-12-02 12:22:28,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:22:28,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:22:28,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:22:28,345 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:22:28,345 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:22:28,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-45.i [2023-12-02 12:22:31,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:22:31,422 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:22:31,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-45.i [2023-12-02 12:22:31,434 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/data/c310dec92/e87e565983814fbb8c9163da8862ddd2/FLAG634300bb4 [2023-12-02 12:22:31,446 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/data/c310dec92/e87e565983814fbb8c9163da8862ddd2 [2023-12-02 12:22:31,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:22:31,451 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:22:31,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:31,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:22:31,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:22:31,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@668f963e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31, skipping insertion in model container [2023-12-02 12:22:31,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,493 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:22:31,668 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_9e70a537-1775-473b-8242-5abde3015bdf/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-45.i[917,930] [2023-12-02 12:22:31,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:31,737 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:22:31,752 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_9e70a537-1775-473b-8242-5abde3015bdf/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-45.i[917,930] [2023-12-02 12:22:31,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:22:31,802 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:22:31,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31 WrapperNode [2023-12-02 12:22:31,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:22:31,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:31,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:22:31,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:22:31,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,860 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2023-12-02 12:22:31,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:22:31,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:22:31,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:22:31,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:22:31,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,892 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:22:31,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:22:31,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:22:31,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:22:31,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (1/1) ... [2023-12-02 12:22:31,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:22:31,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:22:31,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:22:31,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:22:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:22:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 12:22:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 12:22:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 12:22:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:22:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:22:32,097 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:22:32,100 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:22:36,749 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:22:36,807 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:22:36,807 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:22:36,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:36 BoogieIcfgContainer [2023-12-02 12:22:36,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:22:36,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:22:36,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:22:36,813 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:22:36,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:22:31" (1/3) ... [2023-12-02 12:22:36,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87f17c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:36, skipping insertion in model container [2023-12-02 12:22:36,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:22:31" (2/3) ... [2023-12-02 12:22:36,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87f17c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:22:36, skipping insertion in model container [2023-12-02 12:22:36,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:22:36" (3/3) ... [2023-12-02 12:22:36,816 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-45.i [2023-12-02 12:22:36,830 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:22:36,831 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:22:36,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:22:36,880 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;@3b1a40a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:22:36,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:22:36,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-02 12:22:36,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-02 12:22:36,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:36,900 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:36,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:36,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:36,905 INFO L85 PathProgramCache]: Analyzing trace with hash -257329954, now seen corresponding path program 1 times [2023-12-02 12:22:36,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:22:36,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657377408] [2023-12-02 12:22:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:36,918 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 12:22:36,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:22:36,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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 12:22:36,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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 12:22:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:37,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 12:22:37,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:22:37,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2023-12-02 12:22:37,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 12:22:37,577 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 12:22:37,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657377408] [2023-12-02 12:22:37,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [657377408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:22:37,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:22:37,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:22:37,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597813584] [2023-12-02 12:22:37,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:22:37,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 12:22:37,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 12:22:37,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 12:22:37,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 12:22:37,620 INFO L87 Difference]: Start difference. First operand has 57 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-02 12:22:39,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:22:39,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:22:39,884 INFO L93 Difference]: Finished difference Result 111 states and 201 transitions. [2023-12-02 12:22:39,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 12:22:39,936 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 148 [2023-12-02 12:22:39,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:22:39,944 INFO L225 Difference]: With dead ends: 111 [2023-12-02 12:22:39,944 INFO L226 Difference]: Without dead ends: 55 [2023-12-02 12:22:39,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 12:22:39,951 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:22:39,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2023-12-02 12:22:39,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-02 12:22:39,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-12-02 12:22:39,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-02 12:22:40,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 83 transitions. [2023-12-02 12:22:40,003 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 83 transitions. Word has length 148 [2023-12-02 12:22:40,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:22:40,005 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 83 transitions. [2023-12-02 12:22:40,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-12-02 12:22:40,006 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 83 transitions. [2023-12-02 12:22:40,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-02 12:22:40,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:22:40,010 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:22:40,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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 12:22:40,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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 12:22:40,211 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:22:40,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:22:40,212 INFO L85 PathProgramCache]: Analyzing trace with hash 372844293, now seen corresponding path program 1 times [2023-12-02 12:22:40,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:22:40,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933221290] [2023-12-02 12:22:40,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:40,214 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 12:22:40,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:22:40,215 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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 12:22:40,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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 12:22:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:40,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 12:22:40,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:22:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 679 proven. 69 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2023-12-02 12:22:42,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:22:42,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 69 proven. 72 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-12-02 12:22:42,945 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 12:22:42,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933221290] [2023-12-02 12:22:42,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933221290] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:22:42,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1238643059] [2023-12-02 12:22:42,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:42,947 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 12:22:42,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 12:22:42,969 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 12:22:42,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 12:22:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:44,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 12:22:44,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:22:45,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 679 proven. 69 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2023-12-02 12:22:45,214 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:22:45,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 69 proven. 72 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-12-02 12:22:45,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1238643059] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:22:45,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768270930] [2023-12-02 12:22:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:22:45,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:22:45,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:22:45,876 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:22:45,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 12:22:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:22:46,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 12:22:46,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:22:47,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 679 proven. 69 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2023-12-02 12:22:47,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:22:47,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 69 proven. 72 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-12-02 12:22:47,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768270930] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 12:22:47,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 12:22:47,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 13 [2023-12-02 12:22:47,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071023207] [2023-12-02 12:22:47,655 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 12:22:47,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 12:22:47,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 12:22:47,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 12:22:47,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-02 12:22:47,660 INFO L87 Difference]: Start difference. First operand 55 states and 83 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (38), 3 states have call predecessors, (38), 7 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-02 12:22:50,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:22:53,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:22:55,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:22:57,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:22:59,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:23:01,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:23:03,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:23:05,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:23:07,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:23:09,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:23:11,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:23:13,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 12:23:14,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:23:14,390 INFO L93 Difference]: Finished difference Result 191 states and 271 transitions. [2023-12-02 12:23:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 12:23:14,391 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (38), 3 states have call predecessors, (38), 7 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 149 [2023-12-02 12:23:14,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:23:14,395 INFO L225 Difference]: With dead ends: 191 [2023-12-02 12:23:14,396 INFO L226 Difference]: Without dead ends: 137 [2023-12-02 12:23:14,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 910 GetRequests, 876 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=315, Invalid=741, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 12:23:14,400 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 135 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 117 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:23:14,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 273 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 451 Invalid, 12 Unknown, 0 Unchecked, 26.0s Time] [2023-12-02 12:23:14,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-02 12:23:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 64. [2023-12-02 12:23:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-02 12:23:14,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2023-12-02 12:23:14,426 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 149 [2023-12-02 12:23:14,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:23:14,427 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2023-12-02 12:23:14,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 3 states have call successors, (38), 3 states have call predecessors, (38), 7 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-02 12:23:14,427 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2023-12-02 12:23:14,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-02 12:23:14,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:23:14,431 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:23:14,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 12:23:14,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 12:23:14,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 12:23:15,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 12:23:15,037 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:23:15,038 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:23:15,038 INFO L85 PathProgramCache]: Analyzing trace with hash 372903875, now seen corresponding path program 1 times [2023-12-02 12:23:15,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:23:15,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481589273] [2023-12-02 12:23:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:23:15,039 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 12:23:15,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:23:15,040 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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 12:23:15,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e70a537-1775-473b-8242-5abde3015bdf/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 (6)] Waiting until timeout for monitored process [2023-12-02 12:23:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:23:15,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 12:23:15,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:24:19,005 WARN L293 SmtUtils]: Spent 19.05s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:25:28,759 WARN L293 SmtUtils]: Spent 21.21s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:35:51,264 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 4.0 5.0))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 4611686018427382800.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0))) (.cse5 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)))) (or (and (exists ((~var_1_11~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 8 24)) (~var_1_6~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_6~0 ~var_1_7~0) ~var_1_8~0))) (fp.eq .cse0 .cse0)) (fp.geq ~var_1_6~0 .cse1) (fp.geq ~var_1_8~0 .cse1) (not (fp.eq ~var_1_9~0 ((_ to_fp 8 24) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_8~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_11~0 .cse2)))))) (fp.leq ~var_1_7~0 .cse3) (fp.geq ~var_1_7~0 .cse1) (fp.leq ~var_1_6~0 .cse4) (fp.leq ~var_1_8~0 .cse4))) .cse5) (and .cse6 (exists ((~var_1_11~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 8 24)) (~var_1_6~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (not (let ((.cse7 (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_6~0 ~var_1_7~0) ~var_1_8~0))) (fp.eq .cse7 .cse7))) (fp.geq ~var_1_8~0 .cse1) (not (fp.eq ~var_1_9~0 ((_ to_fp 8 24) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_8~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_11~0 .cse2)))))) (fp.leq ~var_1_7~0 .cse3) (fp.geq ~var_1_7~0 .cse1) (fp.leq ~var_1_6~0 .cse4) (fp.leq ~var_1_8~0 .cse4)))) (and .cse6 (exists ((~var_1_11~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 8 24)) (~var_1_6~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (fp.geq ~var_1_6~0 .cse1) (not (let ((.cse8 (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_6~0 ~var_1_7~0) ~var_1_8~0))) (fp.eq .cse8 .cse8))) (fp.eq ~var_1_9~0 ((_ to_fp 8 24) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_8~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_11~0 .cse2))))) (fp.geq ~var_1_8~0 .cse1) (fp.leq ~var_1_7~0 .cse3) (fp.geq ~var_1_7~0 .cse1) (fp.leq ~var_1_8~0 .cse4)))) (and (exists ((~var_1_11~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 8 24)) (~var_1_6~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (let ((.cse9 (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_6~0 ~var_1_7~0) ~var_1_8~0))) (fp.eq .cse9 .cse9)) (fp.geq ~var_1_6~0 .cse1) (fp.eq ~var_1_9~0 ((_ to_fp 8 24) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_8~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_11~0 .cse2))))) (fp.geq ~var_1_8~0 .cse1) (fp.leq ~var_1_7~0 .cse3) (fp.geq ~var_1_7~0 .cse1) (fp.leq ~var_1_6~0 .cse4) (fp.leq ~var_1_8~0 .cse4))) .cse5))) is different from false [2023-12-02 12:36:56,105 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 4.0 5.0))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 4611686018427382800.0))) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)))) (or (exists ((~var_1_11~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 8 24)) (~var_1_6~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (fp.geq ~var_1_6~0 .cse0) (not (let ((.cse1 (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_6~0 ~var_1_7~0) ~var_1_8~0))) (fp.eq .cse1 .cse1))) (fp.eq ~var_1_9~0 ((_ to_fp 8 24) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_8~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_11~0 .cse2))))) (fp.geq ~var_1_8~0 .cse0) (fp.leq ~var_1_7~0 .cse3) (fp.geq ~var_1_7~0 .cse0) (fp.leq ~var_1_8~0 .cse4))) (exists ((~var_1_11~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 8 24)) (~var_1_6~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (not (let ((.cse5 (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_6~0 ~var_1_7~0) ~var_1_8~0))) (fp.eq .cse5 .cse5))) (fp.geq ~var_1_8~0 .cse0) (not (fp.eq ~var_1_9~0 ((_ to_fp 8 24) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_8~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_11~0 .cse2)))))) (fp.leq ~var_1_7~0 .cse3) (fp.geq ~var_1_7~0 .cse0) (fp.leq ~var_1_6~0 .cse4) (fp.leq ~var_1_8~0 .cse4))))) is different from false [2023-12-02 12:36:58,136 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 4.0 5.0))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 4611686018427382800.0))) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0)))) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 9223372036854765600.0)))) (or (exists ((~var_1_11~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 8 24)) (~var_1_6~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (fp.geq ~var_1_6~0 .cse0) (not (let ((.cse1 (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_6~0 ~var_1_7~0) ~var_1_8~0))) (fp.eq .cse1 .cse1))) (fp.eq ~var_1_9~0 ((_ to_fp 8 24) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_8~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_11~0 .cse2))))) (fp.geq ~var_1_8~0 .cse0) (fp.leq ~var_1_7~0 .cse3) (fp.geq ~var_1_7~0 .cse0) (fp.leq ~var_1_8~0 .cse4))) (exists ((~var_1_11~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_9~0 (_ FloatingPoint 8 24)) (~var_1_6~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (and (not (let ((.cse5 (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_6~0 ~var_1_7~0) ~var_1_8~0))) (fp.eq .cse5 .cse5))) (fp.geq ~var_1_8~0 .cse0) (not (fp.eq ~var_1_9~0 ((_ to_fp 8 24) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_8~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_11~0 .cse2)))))) (fp.leq ~var_1_7~0 .cse3) (fp.geq ~var_1_7~0 .cse0) (fp.leq ~var_1_6~0 .cse4) (fp.leq ~var_1_8~0 .cse4))))) is different from true [2023-12-02 12:36:58,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 710 proven. 213 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2023-12-02 12:36:58,140 INFO L327 TraceCheckSpWp]: Computing backward predicates...