./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje --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 ccec72d1445b0e5a7d371146f8f1ae3659440ba0ebb02d40d87a31c04bfcf378 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:22:08,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:22:08,156 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:22:08,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:22:08,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:22:08,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:22:08,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:22:08,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:22:08,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:22:08,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:22:08,201 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:22:08,202 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:22:08,202 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:22:08,203 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:22:08,203 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:22:08,203 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:22:08,204 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:22:08,204 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:22:08,205 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:22:08,205 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:22:08,206 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:22:08,206 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:22:08,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:22:08,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:22:08,207 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:22:08,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:22:08,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:22:08,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:22:08,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:22:08,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:22:08,209 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:22:08,209 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:22:08,210 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:22:08,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:22:08,211 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:22:08,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:22:08,212 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:22:08,212 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:22:08,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:22:08,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:22:08,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:22:08,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:22:08,214 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:22:08,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:22:08,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:22:08,215 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:22:08,215 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:22:08,215 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_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccec72d1445b0e5a7d371146f8f1ae3659440ba0ebb02d40d87a31c04bfcf378 [2024-11-09 06:22:08,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:22:08,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:22:08,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:22:08,540 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:22:08,541 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:22:08,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c Unable to find full path for "g++" [2024-11-09 06:22:10,571 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:22:10,776 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:22:10,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2024-11-09 06:22:10,786 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/data/a10a5fe82/969aae9e4a754bf19244e0659b181734/FLAG436992001 [2024-11-09 06:22:11,153 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/data/a10a5fe82/969aae9e4a754bf19244e0659b181734 [2024-11-09 06:22:11,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:22:11,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:22:11,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:22:11,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:22:11,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:22:11,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@688ce791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11, skipping insertion in model container [2024-11-09 06:22:11,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,211 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:22:11,446 WARN L250 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_42776521-5ff2-4a36-993f-42a93ac07d7c/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c[3180,3193] [2024-11-09 06:22:11,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:22:11,461 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:22:11,507 WARN L250 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_42776521-5ff2-4a36-993f-42a93ac07d7c/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c[3180,3193] [2024-11-09 06:22:11,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:22:11,538 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:22:11,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11 WrapperNode [2024-11-09 06:22:11,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:22:11,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:22:11,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:22:11,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:22:11,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,557 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,590 INFO L138 Inliner]: procedures = 18, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 158 [2024-11-09 06:22:11,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:22:11,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:22:11,594 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:22:11,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:22:11,603 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,606 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,641 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:22:11,645 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:22:11,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:22:11,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:22:11,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (1/1) ... [2024-11-09 06:22:11,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:22:11,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:22:11,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:22:11,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:22:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:22:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:22:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:22:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:22:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 06:22:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 06:22:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:22:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:22:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:22:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-09 06:22:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:22:11,840 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:22:11,842 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:22:12,082 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-09 06:22:12,083 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:22:12,179 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:22:12,179 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-09 06:22:12,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:22:12 BoogieIcfgContainer [2024-11-09 06:22:12,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:22:12,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:22:12,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:22:12,188 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:22:12,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:22:11" (1/3) ... [2024-11-09 06:22:12,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77667ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:22:12, skipping insertion in model container [2024-11-09 06:22:12,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:11" (2/3) ... [2024-11-09 06:22:12,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77667ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:22:12, skipping insertion in model container [2024-11-09 06:22:12,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:22:12" (3/3) ... [2024-11-09 06:22:12,194 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a.c [2024-11-09 06:22:12,216 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:22:12,216 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:22:12,319 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:22:12,326 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@28b5d147, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:22:12,327 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:22:12,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.75) internal successors, (49), 29 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:12,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:22:12,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:12,356 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:12,357 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:22:12,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:12,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2038743999, now seen corresponding path program 1 times [2024-11-09 06:22:12,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:22:12,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120418274] [2024-11-09 06:22:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:12,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:22:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:22:12,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:22:12,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120418274] [2024-11-09 06:22:12,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120418274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:22:12,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:22:12,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:22:12,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142467285] [2024-11-09 06:22:12,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:22:12,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:22:12,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:22:12,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:22:12,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:22:12,597 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.75) internal successors, (49), 29 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:12,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:12,649 INFO L93 Difference]: Finished difference Result 59 states and 97 transitions. [2024-11-09 06:22:12,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:22:12,652 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 06:22:12,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:12,662 INFO L225 Difference]: With dead ends: 59 [2024-11-09 06:22:12,662 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 06:22:12,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:22:12,670 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:12,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:22:12,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 06:22:12,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-09 06:22:12,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:12,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2024-11-09 06:22:12,720 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 7 [2024-11-09 06:22:12,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:12,722 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2024-11-09 06:22:12,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:12,723 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2024-11-09 06:22:12,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:22:12,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:12,725 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:12,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:22:12,726 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:22:12,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:12,728 INFO L85 PathProgramCache]: Analyzing trace with hash 44581840, now seen corresponding path program 1 times [2024-11-09 06:22:12,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:22:12,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973815641] [2024-11-09 06:22:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:12,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:22:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:22:12,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:22:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:22:12,883 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:22:12,884 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:22:12,886 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:22:12,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:22:12,892 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 06:22:12,917 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:22:12,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:22:12 BoogieIcfgContainer [2024-11-09 06:22:12,922 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:22:12,922 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:22:12,922 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:22:12,923 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:22:12,923 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:22:12" (3/4) ... [2024-11-09 06:22:12,926 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:22:12,928 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:22:12,929 INFO L158 Benchmark]: Toolchain (without parser) took 1767.84ms. Allocated memory was 165.7MB in the beginning and 226.5MB in the end (delta: 60.8MB). Free memory was 126.0MB in the beginning and 172.3MB in the end (delta: -46.3MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2024-11-09 06:22:12,930 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:22:12,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.37ms. Allocated memory is still 165.7MB. Free memory was 126.0MB in the beginning and 111.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:22:12,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.54ms. Allocated memory is still 165.7MB. Free memory was 111.6MB in the beginning and 109.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:22:12,933 INFO L158 Benchmark]: Boogie Preprocessor took 52.87ms. Allocated memory is still 165.7MB. Free memory was 109.6MB in the beginning and 107.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:22:12,934 INFO L158 Benchmark]: RCFGBuilder took 534.64ms. Allocated memory is still 165.7MB. Free memory was 107.8MB in the beginning and 89.3MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:22:12,935 INFO L158 Benchmark]: TraceAbstraction took 739.32ms. Allocated memory was 165.7MB in the beginning and 226.5MB in the end (delta: 60.8MB). Free memory was 88.6MB in the beginning and 172.3MB in the end (delta: -83.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:22:12,938 INFO L158 Benchmark]: Witness Printer took 6.05ms. Allocated memory is still 226.5MB. Free memory is still 172.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:22:12,941 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.37ms. Allocated memory is still 165.7MB. Free memory was 126.0MB in the beginning and 111.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.54ms. Allocated memory is still 165.7MB. Free memory was 111.6MB in the beginning and 109.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.87ms. Allocated memory is still 165.7MB. Free memory was 109.6MB in the beginning and 107.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 534.64ms. Allocated memory is still 165.7MB. Free memory was 107.8MB in the beginning and 89.3MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 739.32ms. Allocated memory was 165.7MB in the beginning and 226.5MB in the end (delta: 60.8MB). Free memory was 88.6MB in the beginning and 172.3MB in the end (delta: -83.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.05ms. Allocated memory is still 226.5MB. Free memory is still 172.3MB. 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: 124]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 123, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L119] float x = 0.0f; [L120] CALL, EXPR __ieee754_expf(x) [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx=2147483647, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=-1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0, xsb=1] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=-1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=0, xsb=1] [L120] RET, EXPR __ieee754_expf(x) [L120] float res = __ieee754_expf(x); [L123] COND TRUE res != 1.0f VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L124] reach_error() VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 35 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 06:22:12,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/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_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje --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 ccec72d1445b0e5a7d371146f8f1ae3659440ba0ebb02d40d87a31c04bfcf378 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:22:15,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:22:15,779 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:22:15,785 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:22:15,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:22:15,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:22:15,831 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:22:15,832 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:22:15,833 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:22:15,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:22:15,835 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:22:15,836 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:22:15,836 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:22:15,837 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:22:15,837 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:22:15,838 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:22:15,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:22:15,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:22:15,843 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:22:15,843 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:22:15,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:22:15,848 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:22:15,848 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:22:15,848 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:22:15,849 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:22:15,849 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:22:15,849 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:22:15,849 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:22:15,850 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:22:15,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:22:15,851 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:22:15,852 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:22:15,852 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:22:15,852 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:22:15,853 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:22:15,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:22:15,854 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:22:15,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:22:15,855 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:22:15,855 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:22:15,856 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:22:15,857 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:22:15,857 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:22:15,857 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccec72d1445b0e5a7d371146f8f1ae3659440ba0ebb02d40d87a31c04bfcf378 [2024-11-09 06:22:16,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:22:16,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:22:16,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:22:16,346 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:22:16,347 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:22:16,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c Unable to find full path for "g++" [2024-11-09 06:22:18,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:22:18,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:22:18,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2024-11-09 06:22:18,803 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/data/3aa6f9553/29f10e2261fa474199db2ab6568f0045/FLAG04d014818 [2024-11-09 06:22:18,826 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/data/3aa6f9553/29f10e2261fa474199db2ab6568f0045 [2024-11-09 06:22:18,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:22:18,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:22:18,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:22:18,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:22:18,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:22:18,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:22:18" (1/1) ... [2024-11-09 06:22:18,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7780323e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:18, skipping insertion in model container [2024-11-09 06:22:18,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:22:18" (1/1) ... [2024-11-09 06:22:18,870 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:22:19,156 WARN L250 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_42776521-5ff2-4a36-993f-42a93ac07d7c/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c[3180,3193] [2024-11-09 06:22:19,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:22:19,186 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:22:19,251 WARN L250 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_42776521-5ff2-4a36-993f-42a93ac07d7c/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c[3180,3193] [2024-11-09 06:22:19,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:22:19,327 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:22:19,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19 WrapperNode [2024-11-09 06:22:19,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:22:19,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:22:19,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:22:19,331 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:22:19,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (1/1) ... [2024-11-09 06:22:19,368 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (1/1) ... [2024-11-09 06:22:19,408 INFO L138 Inliner]: procedures = 21, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 159 [2024-11-09 06:22:19,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:22:19,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:22:19,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:22:19,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:22:19,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (1/1) ... [2024-11-09 06:22:19,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (1/1) ... [2024-11-09 06:22:19,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (1/1) ... [2024-11-09 06:22:19,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (1/1) ... [2024-11-09 06:22:19,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (1/1) ... [2024-11-09 06:22:19,465 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (1/1) ... [2024-11-09 06:22:19,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (1/1) ... [2024-11-09 06:22:19,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (1/1) ... [2024-11-09 06:22:19,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:22:19,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:22:19,489 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:22:19,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:22:19,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (1/1) ... [2024-11-09 06:22:19,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:22:19,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:22:19,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:22:19,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:22:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:22:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 06:22:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:22:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:22:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 06:22:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:22:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:22:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:22:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 06:22:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:22:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:22:19,744 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:22:19,746 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:22:27,984 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-09 06:22:27,984 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:22:27,998 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:22:27,998 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-09 06:22:27,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:22:27 BoogieIcfgContainer [2024-11-09 06:22:27,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:22:28,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:22:28,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:22:28,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:22:28,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:22:18" (1/3) ... [2024-11-09 06:22:28,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba28023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:22:28, skipping insertion in model container [2024-11-09 06:22:28,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:22:19" (2/3) ... [2024-11-09 06:22:28,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba28023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:22:28, skipping insertion in model container [2024-11-09 06:22:28,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:22:27" (3/3) ... [2024-11-09 06:22:28,024 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a.c [2024-11-09 06:22:28,046 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:22:28,047 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:22:28,118 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:22:28,126 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@18279c0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:22:28,126 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:22:28,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:28,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:22:28,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:28,139 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:28,140 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:22:28,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:28,146 INFO L85 PathProgramCache]: Analyzing trace with hash 324651751, now seen corresponding path program 1 times [2024-11-09 06:22:28,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:22:28,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869591675] [2024-11-09 06:22:28,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:28,160 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:22:28,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:22:28,164 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:22:28,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 06:22:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:28,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:22:28,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:22:28,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:22:28,690 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:22:28,691 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:22:28,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869591675] [2024-11-09 06:22:28,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869591675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:22:28,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:22:28,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:22:28,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25036895] [2024-11-09 06:22:28,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:22:28,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:22:28,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:22:28,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:22:28,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:22:28,727 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:28,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:28,753 INFO L93 Difference]: Finished difference Result 66 states and 106 transitions. [2024-11-09 06:22:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:22:28,755 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 06:22:28,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:28,767 INFO L225 Difference]: With dead ends: 66 [2024-11-09 06:22:28,767 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 06:22:28,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:22:28,780 INFO L432 NwaCegarLoop]: 43 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, 43 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:28,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:22:28,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 06:22:28,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-09 06:22:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:28,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2024-11-09 06:22:28,826 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 8 [2024-11-09 06:22:28,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:28,826 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2024-11-09 06:22:28,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:28,827 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2024-11-09 06:22:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:22:28,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:28,828 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:28,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:22:29,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:22:29,029 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:22:29,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:29,030 INFO L85 PathProgramCache]: Analyzing trace with hash 295406058, now seen corresponding path program 1 times [2024-11-09 06:22:29,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:22:29,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447859704] [2024-11-09 06:22:29,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:29,032 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:22:29,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:22:29,035 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:22:29,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 06:22:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:29,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:22:29,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:22:29,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:22:29,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-09 06:22:29,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:22:29,884 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:22:29,884 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:22:29,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447859704] [2024-11-09 06:22:29,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1447859704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:22:29,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:22:29,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:22:29,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652926377] [2024-11-09 06:22:29,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:22:29,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:22:29,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:22:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:22:29,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:22:29,889 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:32,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:34,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:22:36,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:39,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:40,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:40,322 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2024-11-09 06:22:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:22:40,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 06:22:40,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:40,362 INFO L225 Difference]: With dead ends: 48 [2024-11-09 06:22:40,362 INFO L226 Difference]: Without dead ends: 29 [2024-11-09 06:22:40,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:22:40,364 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 20 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:40,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 64 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2024-11-09 06:22:40,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-09 06:22:40,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-09 06:22:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2024-11-09 06:22:40,371 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2024-11-09 06:22:40,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:40,372 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2024-11-09 06:22:40,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:40,373 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2024-11-09 06:22:40,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 06:22:40,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:40,373 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:40,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:22:40,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:22:40,574 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:22:40,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:40,575 INFO L85 PathProgramCache]: Analyzing trace with hash -899761548, now seen corresponding path program 1 times [2024-11-09 06:22:40,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:22:40,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [106525038] [2024-11-09 06:22:40,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:40,577 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:22:40,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:22:40,580 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:22:40,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:22:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:41,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:22:41,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:22:41,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:22:41,961 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:22:41,961 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:22:41,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [106525038] [2024-11-09 06:22:41,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [106525038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:22:41,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:22:41,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:22:41,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212730292] [2024-11-09 06:22:41,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:22:41,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:22:41,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:22:41,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:22:41,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:22:41,966 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:44,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:47,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:49,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:51,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:51,043 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2024-11-09 06:22:51,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:22:51,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 06:22:51,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:51,051 INFO L225 Difference]: With dead ends: 33 [2024-11-09 06:22:51,052 INFO L226 Difference]: Without dead ends: 29 [2024-11-09 06:22:51,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:22:51,054 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 21 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:51,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 73 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2024-11-09 06:22:51,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-09 06:22:51,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-09 06:22:51,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:51,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2024-11-09 06:22:51,060 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2024-11-09 06:22:51,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:51,060 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2024-11-09 06:22:51,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2024-11-09 06:22:51,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 06:22:51,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:51,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:51,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:22:51,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:22:51,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:22:51,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:51,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1378548401, now seen corresponding path program 1 times [2024-11-09 06:22:51,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:22:51,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498292030] [2024-11-09 06:22:51,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:51,265 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:22:51,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:22:51,268 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:22:51,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/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)] Waiting until timeout for monitored process [2024-11-09 06:22:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:22:52,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:22:52,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:22:53,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:22:53,278 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:22:53,278 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:22:53,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498292030] [2024-11-09 06:22:53,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [498292030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:22:53,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:22:53,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:22:53,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268140863] [2024-11-09 06:22:53,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:22:53,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:22:53,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:22:53,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:22:53,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:22:53,282 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:53,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:53,313 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2024-11-09 06:22:53,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:22:53,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-09 06:22:53,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:53,315 INFO L225 Difference]: With dead ends: 29 [2024-11-09 06:22:53,316 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:22:53,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:22:53,317 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:53,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:22:53,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:22:53,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:22:53,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:53,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:22:53,320 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2024-11-09 06:22:53,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:53,320 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:22:53,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:22:53,321 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:22:53,321 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:22:53,324 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:22:53,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 06:22:53,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:22:53,533 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 06:22:53,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 06:22:53,662 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:22:53,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:22:53 BoogieIcfgContainer [2024-11-09 06:22:53,674 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:22:53,675 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:22:53,675 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:22:53,675 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:22:53,676 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:22:27" (3/4) ... [2024-11-09 06:22:53,679 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:22:53,689 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-09 06:22:53,689 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-09 06:22:53,689 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 06:22:53,690 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 06:22:53,816 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:22:53,817 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:22:53,817 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:22:53,818 INFO L158 Benchmark]: Toolchain (without parser) took 34988.26ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 48.9MB in the beginning and 64.1MB in the end (delta: -15.1MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2024-11-09 06:22:53,818 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 103.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:22:53,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.31ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 48.7MB in the beginning and 69.4MB in the end (delta: -20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:22:53,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.41ms. Allocated memory is still 92.3MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:22:53,819 INFO L158 Benchmark]: Boogie Preprocessor took 69.91ms. Allocated memory is still 92.3MB. Free memory was 67.3MB in the beginning and 65.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:22:53,819 INFO L158 Benchmark]: RCFGBuilder took 8514.68ms. Allocated memory is still 92.3MB. Free memory was 65.2MB in the beginning and 46.6MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 06:22:53,819 INFO L158 Benchmark]: TraceAbstraction took 25672.81ms. Allocated memory is still 92.3MB. Free memory was 46.0MB in the beginning and 40.3MB in the end (delta: 5.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2024-11-09 06:22:53,821 INFO L158 Benchmark]: Witness Printer took 142.29ms. Allocated memory is still 92.3MB. Free memory was 40.3MB in the beginning and 64.1MB in the end (delta: -23.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:22:53,823 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 103.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.31ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 48.7MB in the beginning and 69.4MB in the end (delta: -20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.41ms. Allocated memory is still 92.3MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.91ms. Allocated memory is still 92.3MB. Free memory was 67.3MB in the beginning and 65.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 8514.68ms. Allocated memory is still 92.3MB. Free memory was 65.2MB in the beginning and 46.6MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 25672.81ms. Allocated memory is still 92.3MB. Free memory was 46.0MB in the beginning and 40.3MB in the end (delta: 5.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Witness Printer took 142.29ms. Allocated memory is still 92.3MB. Free memory was 40.3MB in the beginning and 64.1MB in the end (delta: -23.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 124]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 19.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 190 SdHoareTripleChecker+Invalid, 18.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 93 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 1 QuantifiedInterpolants, 461 SizeOfPredicates, 9 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 06:22:53,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42776521-5ff2-4a36-993f-42a93ac07d7c/bin/utaipan-verify-YMUCfTKeje/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 Writing output log to file Ultimate.log Result: TRUE