./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ --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 3653ee9b8dc6b7aee8e6b7da10ac828d65da62269c83c8e52fa2ba1e8499c5f1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:25:07,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:25:08,130 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:25:08,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:25:08,138 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:25:08,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:25:08,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:25:08,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:25:08,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:25:08,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:25:08,198 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:25:08,199 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:25:08,200 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:25:08,206 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:25:08,206 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:25:08,207 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:25:08,207 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:25:08,208 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:25:08,209 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:25:08,209 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:25:08,210 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:25:08,211 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:25:08,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:25:08,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:25:08,213 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:25:08,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:25:08,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:25:08,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:25:08,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:25:08,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:25:08,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:25:08,218 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:25:08,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:25:08,219 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:25:08,219 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:25:08,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:25:08,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:25:08,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:25:08,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:25:08,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:25:08,221 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:25:08,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:25:08,222 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:25:08,222 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:25:08,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:25:08,223 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_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3653ee9b8dc6b7aee8e6b7da10ac828d65da62269c83c8e52fa2ba1e8499c5f1 [2023-11-19 05:25:08,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:25:08,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:25:08,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:25:08,640 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:25:08,640 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:25:08,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i [2023-11-19 05:25:12,292 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:25:12,632 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:25:12,633 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i [2023-11-19 05:25:12,644 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/data/7357146ea/4fe642cf371144e9b6cdc0d09e962856/FLAG57539041c [2023-11-19 05:25:12,661 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/data/7357146ea/4fe642cf371144e9b6cdc0d09e962856 [2023-11-19 05:25:12,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:25:12,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:25:12,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:25:12,669 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:25:12,675 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:25:12,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:25:12" (1/1) ... [2023-11-19 05:25:12,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0a919b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:12, skipping insertion in model container [2023-11-19 05:25:12,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:25:12" (1/1) ... [2023-11-19 05:25:12,710 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:25:12,894 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_60044ae5-7e15-465f-8c54-6e14df52d1fb/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i[917,930] [2023-11-19 05:25:12,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:25:12,984 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:25:12,999 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_60044ae5-7e15-465f-8c54-6e14df52d1fb/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i[917,930] [2023-11-19 05:25:13,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:25:13,049 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:25:13,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13 WrapperNode [2023-11-19 05:25:13,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:25:13,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:25:13,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:25:13,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:25:13,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (1/1) ... [2023-11-19 05:25:13,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (1/1) ... [2023-11-19 05:25:13,127 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2023-11-19 05:25:13,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:25:13,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:25:13,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:25:13,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:25:13,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (1/1) ... [2023-11-19 05:25:13,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (1/1) ... [2023-11-19 05:25:13,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (1/1) ... [2023-11-19 05:25:13,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (1/1) ... [2023-11-19 05:25:13,169 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (1/1) ... [2023-11-19 05:25:13,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (1/1) ... [2023-11-19 05:25:13,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (1/1) ... [2023-11-19 05:25:13,179 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (1/1) ... [2023-11-19 05:25:13,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:25:13,184 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:25:13,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:25:13,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:25:13,186 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (1/1) ... [2023-11-19 05:25:13,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:25:13,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:25:13,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:25:13,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:25:13,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:25:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:25:13,292 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:25:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:25:13,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:25:13,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:25:13,430 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:25:13,433 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:25:13,854 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:25:14,017 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:25:14,017 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:25:14,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:14 BoogieIcfgContainer [2023-11-19 05:25:14,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:25:14,027 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:25:14,027 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:25:14,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:25:14,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:25:12" (1/3) ... [2023-11-19 05:25:14,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73dbf895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:25:14, skipping insertion in model container [2023-11-19 05:25:14,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:13" (2/3) ... [2023-11-19 05:25:14,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73dbf895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:25:14, skipping insertion in model container [2023-11-19 05:25:14,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:14" (3/3) ... [2023-11-19 05:25:14,035 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-13.i [2023-11-19 05:25:14,060 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:25:14,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:25:14,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:25:14,130 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;@76d58f88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:25:14,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:25:14,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 05:25:14,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 05:25:14,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:14,150 INFO L195 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:25:14,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:25:14,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:14,158 INFO L85 PathProgramCache]: Analyzing trace with hash 763099321, now seen corresponding path program 1 times [2023-11-19 05:25:14,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:14,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33317832] [2023-11-19 05:25:14,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:14,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:14,445 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:25:14,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347378000] [2023-11-19 05:25:14,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:14,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:25:14,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:25:14,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:25:14,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:25:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:25:14,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:25:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:25:14,783 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:25:14,786 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:25:14,788 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:25:14,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:25:15,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:25:15,021 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:25:15,032 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:25:15,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:25:15 BoogieIcfgContainer [2023-11-19 05:25:15,112 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:25:15,112 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:25:15,113 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:25:15,113 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:25:15,113 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:14" (3/4) ... [2023-11-19 05:25:15,116 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:25:15,117 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:25:15,118 INFO L158 Benchmark]: Toolchain (without parser) took 2451.78ms. Allocated memory is still 146.8MB. Free memory was 115.3MB in the beginning and 97.5MB in the end (delta: 17.7MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-11-19 05:25:15,119 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:25:15,120 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.92ms. Allocated memory is still 146.8MB. Free memory was 114.7MB in the beginning and 102.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:25:15,120 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.20ms. Allocated memory is still 146.8MB. Free memory was 102.8MB in the beginning and 100.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:25:15,121 INFO L158 Benchmark]: Boogie Preprocessor took 55.49ms. Allocated memory is still 146.8MB. Free memory was 100.1MB in the beginning and 98.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:25:15,122 INFO L158 Benchmark]: RCFGBuilder took 839.29ms. Allocated memory is still 146.8MB. Free memory was 98.6MB in the beginning and 75.0MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 05:25:15,123 INFO L158 Benchmark]: TraceAbstraction took 1085.09ms. Allocated memory is still 146.8MB. Free memory was 74.5MB in the beginning and 97.5MB in the end (delta: -23.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:25:15,123 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 146.8MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:25:15,127 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.92ms. Allocated memory is still 146.8MB. Free memory was 114.7MB in the beginning and 102.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.20ms. Allocated memory is still 146.8MB. Free memory was 102.8MB in the beginning and 100.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.49ms. Allocated memory is still 146.8MB. Free memory was 100.1MB in the beginning and 98.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 839.29ms. Allocated memory is still 146.8MB. Free memory was 98.6MB in the beginning and 75.0MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1085.09ms. Allocated memory is still 146.8MB. Free memory was 74.5MB in the beginning and 97.5MB in the end (delta: -23.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 146.8MB. Free memory is still 97.5MB. 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 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 25; [L23] unsigned char var_1_2 = 1; [L24] signed char var_1_5 = 16; [L25] unsigned short int var_1_6 = 16; [L26] signed char var_1_7 = 4; [L27] unsigned short int var_1_8 = 2; [L28] signed char var_1_9 = 64; [L29] signed char var_1_10 = 0; [L30] unsigned char var_1_11 = 16; [L31] double var_1_12 = 128.4; [L32] double var_1_13 = 50.2; [L33] double var_1_14 = 3.8; [L34] double var_1_15 = 25.1; [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] FCALL updateLastVariables() [L96] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L62] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=16, var_1_7=4, var_1_8=2, var_1_9=64] [L63] var_1_6 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=4, var_1_8=2, var_1_9=64] [L65] CALL assume_abort_if_not(var_1_6 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_6 <= 65535) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=4, var_1_8=2, var_1_9=64] [L66] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=4, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=4, var_1_8=2, var_1_9=64] [L67] var_1_7 = __VERIFIER_nondet_char() [L68] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=64] [L69] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=64] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=64] [L70] var_1_9 = __VERIFIER_nondet_char() [L71] CALL assume_abort_if_not(var_1_9 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_9 >= 63) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L72] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, var_1_10=0, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L73] var_1_10 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L75] CALL assume_abort_if_not(var_1_10 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_10 <= 64) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_12=642/5, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L76] var_1_12 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_12=2, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_12=2, var_1_13=251/5, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L78] var_1_13 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_12=2, var_1_13=3, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_12=2, var_1_13=3, var_1_14=19/5, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L80] var_1_14 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_12=2, var_1_13=3, var_1_14=4, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_12=2, var_1_13=3, var_1_14=4, var_1_15=251/10, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L82] var_1_15 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=31, var_1_11=16, var_1_12=2, var_1_13=3, var_1_14=4, var_1_15=5, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=31, var_1_11=16, var_1_12=2, var_1_13=3, var_1_14=4, var_1_15=5, var_1_1=25, var_1_2=0, var_1_5=16, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L96] RET updateVariables() [L97] CALL step() [L38] COND FALSE !(((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) [L41] COND FALSE !(\read(var_1_2)) [L44] COND FALSE !((var_1_1 == 16) || (var_1_11 < (10 / var_1_6))) [L47] var_1_5 = 5 [L49] unsigned char stepLocal_1 = var_1_11; [L50] unsigned char stepLocal_0 = var_1_2; [L51] COND TRUE stepLocal_0 || (var_1_11 >= var_1_11) [L52] COND FALSE !(stepLocal_1 < ((var_1_9 - var_1_10) - 16)) [L97] RET step() [L98] CALL, EXPR property() [L88-L89] return (((var_1_2 ? (var_1_1 == ((unsigned short int) ((((var_1_11) > (var_1_11)) ? (var_1_11) : (var_1_11))))) : 1) && (((var_1_1 == 16) || (var_1_11 < (10 / var_1_6))) ? (var_1_5 == ((signed char) var_1_7)) : (var_1_5 == ((signed char) 5)))) && ((var_1_2 || (var_1_11 >= var_1_11)) ? ((var_1_11 < ((var_1_9 - var_1_10) - 16)) ? (var_1_8 == ((unsigned short int) ((((var_1_10) > (32)) ? (var_1_10) : (32))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_9) < (var_1_11)) ? (var_1_9) : (var_1_11))))))) && ((((var_1_12 - var_1_13) + var_1_14) <= (256.625 * ((((1.875) > (var_1_15)) ? (1.875) : (var_1_15))))) ? (var_1_11 == ((unsigned char) (((((5) < 0 ) ? -(5) : (5))) + 5))) : 1) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=31, var_1_11=16, var_1_12=2, var_1_13=3, var_1_14=4, var_1_15=5, var_1_1=25, var_1_2=0, var_1_5=5, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=31, var_1_11=16, var_1_12=2, var_1_13=3, var_1_14=4, var_1_15=5, var_1_1=25, var_1_2=0, var_1_5=5, var_1_6=11, var_1_7=-127, var_1_8=2, var_1_9=63] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 15, 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=33occurred 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, 58 NumberOfCodeBlocks, 58 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 [2023-11-19 05:25:15,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ --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 3653ee9b8dc6b7aee8e6b7da10ac828d65da62269c83c8e52fa2ba1e8499c5f1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:25:18,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:25:18,538 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:25:18,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:25:18,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:25:18,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:25:18,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:25:18,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:25:18,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:25:18,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:25:18,611 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:25:18,612 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:25:18,612 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:25:18,614 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:25:18,615 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:25:18,616 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:25:18,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:25:18,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:25:18,618 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:25:18,618 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:25:18,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:25:18,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:25:18,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:25:18,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:25:18,622 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:25:18,623 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:25:18,623 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:25:18,624 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:25:18,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:25:18,625 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:25:18,626 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:25:18,627 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:25:18,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:25:18,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:25:18,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:25:18,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:25:18,629 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:25:18,629 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:25:18,629 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:25:18,631 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:25:18,631 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:25:18,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:25:18,632 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_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3653ee9b8dc6b7aee8e6b7da10ac828d65da62269c83c8e52fa2ba1e8499c5f1 [2023-11-19 05:25:19,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:25:19,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:25:19,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:25:19,080 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:25:19,081 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:25:19,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i [2023-11-19 05:25:22,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:25:22,968 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:25:22,970 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i [2023-11-19 05:25:22,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/data/cf70ac0da/50606f652a454a09bef6433d8691d9d7/FLAG442293591 [2023-11-19 05:25:23,008 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/data/cf70ac0da/50606f652a454a09bef6433d8691d9d7 [2023-11-19 05:25:23,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:25:23,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:25:23,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:25:23,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:25:23,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:25:23,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78cf753a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23, skipping insertion in model container [2023-11-19 05:25:23,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,082 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:25:23,332 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_60044ae5-7e15-465f-8c54-6e14df52d1fb/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i[917,930] [2023-11-19 05:25:23,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:25:23,465 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:25:23,489 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_60044ae5-7e15-465f-8c54-6e14df52d1fb/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-13.i[917,930] [2023-11-19 05:25:23,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:25:23,572 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:25:23,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23 WrapperNode [2023-11-19 05:25:23,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:25:23,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:25:23,575 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:25:23,575 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:25:23,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,658 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2023-11-19 05:25:23,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:25:23,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:25:23,660 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:25:23,660 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:25:23,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,678 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,694 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,698 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,700 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:25:23,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:25:23,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:25:23,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:25:23,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (1/1) ... [2023-11-19 05:25:23,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:25:23,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:25:23,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:25:23,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:25:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:25:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:25:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:25:23,811 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:25:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:25:23,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:25:23,934 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:25:23,938 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:25:30,316 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:25:30,326 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:25:30,327 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:25:30,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:30 BoogieIcfgContainer [2023-11-19 05:25:30,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:25:30,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:25:30,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:25:30,340 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:25:30,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:25:23" (1/3) ... [2023-11-19 05:25:30,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6522828d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:25:30, skipping insertion in model container [2023-11-19 05:25:30,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:23" (2/3) ... [2023-11-19 05:25:30,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6522828d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:25:30, skipping insertion in model container [2023-11-19 05:25:30,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:30" (3/3) ... [2023-11-19 05:25:30,345 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-13.i [2023-11-19 05:25:30,369 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:25:30,370 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:25:30,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:25:30,431 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;@5554e35b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:25:30,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:25:30,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 05:25:30,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 05:25:30,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:30,454 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:25:30,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:25:30,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:30,462 INFO L85 PathProgramCache]: Analyzing trace with hash 744628402, now seen corresponding path program 1 times [2023-11-19 05:25:30,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:25:30,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71646440] [2023-11-19 05:25:30,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:30,478 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 [2023-11-19 05:25:30,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:25:30,482 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:25:30,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:25:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:30,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:25:30,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:25:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-19 05:25:31,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:25:31,042 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:25:31,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71646440] [2023-11-19 05:25:31,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71646440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:31,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:31,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:25:31,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438475876] [2023-11-19 05:25:31,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:31,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:25:31,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:25:31,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:25:31,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:25:31,102 INFO L87 Difference]: Start difference. First operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 05:25:31,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:31,137 INFO L93 Difference]: Finished difference Result 91 states and 151 transitions. [2023-11-19 05:25:31,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:25:31,139 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 98 [2023-11-19 05:25:31,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:31,149 INFO L225 Difference]: With dead ends: 91 [2023-11-19 05:25:31,149 INFO L226 Difference]: Without dead ends: 45 [2023-11-19 05:25:31,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:25:31,158 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:31,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:25:31,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-19 05:25:31,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-19 05:25:31,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 05:25:31,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2023-11-19 05:25:31,222 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 98 [2023-11-19 05:25:31,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:31,223 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2023-11-19 05:25:31,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 05:25:31,224 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2023-11-19 05:25:31,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-19 05:25:31,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:31,235 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:25:31,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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)] Ended with exit code 0 [2023-11-19 05:25:31,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:25:31,446 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:25:31,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:31,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1203141465, now seen corresponding path program 1 times [2023-11-19 05:25:31,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:25:31,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126388443] [2023-11-19 05:25:31,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:31,448 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 [2023-11-19 05:25:31,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:25:31,450 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:25:31,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:25:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:31,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:25:31,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:25:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-19 05:25:32,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:25:32,138 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:25:32,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126388443] [2023-11-19 05:25:32,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126388443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:32,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:32,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:25:32,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097109218] [2023-11-19 05:25:32,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:32,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:25:32,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:25:32,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:25:32,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:25:32,148 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-19 05:25:34,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:36,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:37,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:40,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:40,095 INFO L93 Difference]: Finished difference Result 171 states and 243 transitions. [2023-11-19 05:25:40,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:25:40,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99 [2023-11-19 05:25:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:40,119 INFO L225 Difference]: With dead ends: 171 [2023-11-19 05:25:40,119 INFO L226 Difference]: Without dead ends: 129 [2023-11-19 05:25:40,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:25:40,122 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 115 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:40,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 229 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2023-11-19 05:25:40,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-19 05:25:40,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2023-11-19 05:25:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 76 states have internal predecessors, (90), 45 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-19 05:25:40,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 180 transitions. [2023-11-19 05:25:40,167 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 180 transitions. Word has length 99 [2023-11-19 05:25:40,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:40,168 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 180 transitions. [2023-11-19 05:25:40,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-19 05:25:40,169 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 180 transitions. [2023-11-19 05:25:40,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-19 05:25:40,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:40,172 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:25:40,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:25:40,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:25:40,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:25:40,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:40,378 INFO L85 PathProgramCache]: Analyzing trace with hash 393794839, now seen corresponding path program 1 times [2023-11-19 05:25:40,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:25:40,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505407665] [2023-11-19 05:25:40,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:40,379 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 [2023-11-19 05:25:40,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:25:40,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:25:40,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60044ae5-7e15-465f-8c54-6e14df52d1fb/bin/utaipan-verify-t7M7D8N6sZ/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 (4)] Waiting until timeout for monitored process [2023-11-19 05:25:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:40,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 05:25:40,801 INFO L285 TraceCheckSpWp]: Computing forward predicates...