./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:17:03,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:17:03,625 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:17:03,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:17:03,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:17:03,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:17:03,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:17:03,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:17:03,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:17:03,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:17:03,700 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:17:03,701 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:17:03,702 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:17:03,704 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:17:03,704 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:17:03,705 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:17:03,705 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:17:03,706 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:17:03,706 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:17:03,707 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:17:03,707 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:17:03,708 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:17:03,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:17:03,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:17:03,710 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:17:03,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:17:03,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:17:03,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:17:03,712 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:17:03,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:17:03,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:17:03,714 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:17:03,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:17:03,715 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:17:03,715 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:17:03,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:17:03,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:17:03,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:17:03,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:17:03,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:17:03,717 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:17:03,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:17:03,718 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:17:03,718 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:17:03,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:17:03,719 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_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b [2023-11-19 04:17:04,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:17:04,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:17:04,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:17:04,188 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:17:04,188 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:17:04,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2023-11-19 04:17:07,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:17:07,572 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:17:07,573 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2023-11-19 04:17:07,584 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/data/1108af4b5/85fb47cd3c9d4d7b9d12d6f130c51143/FLAGb74921d0f [2023-11-19 04:17:07,604 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/data/1108af4b5/85fb47cd3c9d4d7b9d12d6f130c51143 [2023-11-19 04:17:07,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:17:07,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:17:07,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:17:07,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:17:07,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:17:07,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:07,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf7d6e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07, skipping insertion in model container [2023-11-19 04:17:07,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:07,663 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:17:07,903 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2023-11-19 04:17:07,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:17:07,942 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:17:07,972 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2023-11-19 04:17:07,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:17:07,992 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:17:07,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07 WrapperNode [2023-11-19 04:17:07,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:17:07,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:17:07,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:17:07,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:17:08,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:08,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:08,044 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 129 [2023-11-19 04:17:08,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:17:08,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:17:08,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:17:08,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:17:08,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:08,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:08,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:08,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:08,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:08,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:08,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:08,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:08,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:17:08,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:17:08,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:17:08,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:17:08,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (1/1) ... [2023-11-19 04:17:08,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:17:08,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:17:08,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:17:08,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:17:08,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:17:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:17:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:17:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 04:17:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:17:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 04:17:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:17:08,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:17:08,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:17:08,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:17:08,322 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:17:08,325 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:17:08,694 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:17:08,895 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:17:08,896 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 04:17:08,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:17:08 BoogieIcfgContainer [2023-11-19 04:17:08,908 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:17:08,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:17:08,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:17:08,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:17:08,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:17:07" (1/3) ... [2023-11-19 04:17:08,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd4b53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:17:08, skipping insertion in model container [2023-11-19 04:17:08,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:07" (2/3) ... [2023-11-19 04:17:08,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd4b53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:17:08, skipping insertion in model container [2023-11-19 04:17:08,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:17:08" (3/3) ... [2023-11-19 04:17:08,928 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2023-11-19 04:17:08,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:17:08,953 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:17:09,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:17:09,033 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5016287, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:17:09,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:17:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 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) [2023-11-19 04:17:09,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:17:09,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:17:09,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:17:09,052 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:17:09,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:17:09,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1406594047, now seen corresponding path program 1 times [2023-11-19 04:17:09,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:17:09,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755455814] [2023-11-19 04:17:09,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:17:09,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:17:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:17:09,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:17:09,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:17:09,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755455814] [2023-11-19 04:17:09,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755455814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:17:09,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:17:09,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:17:09,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086102847] [2023-11-19 04:17:09,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:17:09,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:17:09,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:17:09,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:17:09,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:17:09,352 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 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) 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) [2023-11-19 04:17:09,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:17:09,431 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2023-11-19 04:17:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:17:09,434 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 [2023-11-19 04:17:09,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:17:09,445 INFO L225 Difference]: With dead ends: 39 [2023-11-19 04:17:09,445 INFO L226 Difference]: Without dead ends: 18 [2023-11-19 04:17:09,450 INFO L412 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 [2023-11-19 04:17:09,456 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:17:09,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:17:09,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-19 04:17:09,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-19 04:17:09,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 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) [2023-11-19 04:17:09,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2023-11-19 04:17:09,504 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2023-11-19 04:17:09,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:17:09,506 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-11-19 04:17:09,507 INFO L496 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) [2023-11-19 04:17:09,507 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-19 04:17:09,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:17:09,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:17:09,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:17:09,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:17:09,510 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:17:09,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:17:09,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2036790912, now seen corresponding path program 1 times [2023-11-19 04:17:09,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:17:09,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565704575] [2023-11-19 04:17:09,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:17:09,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:17:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:17:09,650 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:17:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:17:09,740 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:17:09,741 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:17:09,743 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:17:09,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:17:09,750 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 04:17:09,755 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:17:09,773 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-19 04:17:09,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:17:09 BoogieIcfgContainer [2023-11-19 04:17:09,792 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:17:09,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:17:09,793 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:17:09,794 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:17:09,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:17:08" (3/4) ... [2023-11-19 04:17:09,798 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:17:09,799 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:17:09,801 INFO L158 Benchmark]: Toolchain (without parser) took 2183.68ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 78.2MB in the beginning and 100.2MB in the end (delta: -22.0MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-11-19 04:17:09,803 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 136.3MB. Free memory was 101.4MB in the beginning and 101.3MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:17:09,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.20ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 77.9MB in the beginning and 156.6MB in the end (delta: -78.7MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2023-11-19 04:17:09,808 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.97ms. Allocated memory is still 186.6MB. Free memory was 156.5MB in the beginning and 154.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:17:09,812 INFO L158 Benchmark]: Boogie Preprocessor took 51.14ms. Allocated memory is still 186.6MB. Free memory was 154.7MB in the beginning and 156.8MB in the end (delta: -2.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2023-11-19 04:17:09,813 INFO L158 Benchmark]: RCFGBuilder took 811.19ms. Allocated memory is still 186.6MB. Free memory was 156.8MB in the beginning and 129.6MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 04:17:09,814 INFO L158 Benchmark]: TraceAbstraction took 878.18ms. Allocated memory is still 186.6MB. Free memory was 128.3MB in the beginning and 101.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 04:17:09,814 INFO L158 Benchmark]: Witness Printer took 6.53ms. Allocated memory is still 186.6MB. Free memory was 101.0MB in the beginning and 100.2MB in the end (delta: 834.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:17:09,823 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 136.3MB. Free memory was 101.4MB in the beginning and 101.3MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.20ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 77.9MB in the beginning and 156.6MB in the end (delta: -78.7MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.97ms. Allocated memory is still 186.6MB. Free memory was 156.5MB in the beginning and 154.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.14ms. Allocated memory is still 186.6MB. Free memory was 154.7MB in the beginning and 156.8MB in the end (delta: -2.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * RCFGBuilder took 811.19ms. Allocated memory is still 186.6MB. Free memory was 156.8MB in the beginning and 129.6MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 878.18ms. Allocated memory is still 186.6MB. Free memory was 128.3MB in the beginning and 101.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 6.53ms. Allocated memory is still 186.6MB. Free memory was 101.0MB in the beginning and 100.2MB in the end (delta: 834.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 82]: 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 81, overapproximation of bitwiseAnd at line 25, overapproximation of someUnaryFLOAToperation at line 77, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L77] float x = -0.0f; [L78] CALL, EXPR round_float(x) [L15] __uint32_t w; [L17] int exponent_less_127; VAL [\old(x)=1258291208, x=1258291208] [L20] ieee_float_shape_type gf_u; [L21] EXPR gf_u.value = (x) [L22] EXPR gf_u.word [L22] EXPR (w) = gf_u.word [L19-L23] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=1258291208, w=1258291200, x=1258291208] [L25] EXPR w & 0x7f800000 [L25] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L27] COND FALSE !(exponent_less_127 < 23) [L43] COND FALSE !(exponent_less_127 == 128) [L47] return x; VAL [\old(x)=1258291208, \result=1258291208, exponent_less_127=23, w=1258291200, x=1258291208] [L78] RET, EXPR round_float(x) [L78] float res = round_float(x); [L81] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=1258291208, x=1258291208] [L81] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L82] reach_error() VAL [res=1258291208, x=1258291208] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 15 mSDtfsCounter, 8 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=20occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2023-11-19 04:17:09,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:17:12,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:17:13,007 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:17:13,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:17:13,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:17:13,070 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:17:13,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:17:13,072 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:17:13,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:17:13,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:17:13,079 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:17:13,079 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:17:13,080 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:17:13,082 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:17:13,082 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:17:13,083 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:17:13,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:17:13,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:17:13,085 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:17:13,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:17:13,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:17:13,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:17:13,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:17:13,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:17:13,088 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:17:13,088 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:17:13,089 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:17:13,089 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:17:13,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:17:13,090 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:17:13,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:17:13,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:17:13,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:17:13,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:17:13,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:17:13,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:17:13,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:17:13,094 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:17:13,095 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:17:13,096 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:17:13,096 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:17:13,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:17:13,097 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b [2023-11-19 04:17:13,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:17:13,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:17:13,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:17:13,613 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:17:13,614 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:17:13,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2023-11-19 04:17:16,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:17:17,237 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:17:17,237 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2023-11-19 04:17:17,246 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/data/f7b66cd17/84f91a4273d54fe39d5d78a276f70701/FLAGd8d15b924 [2023-11-19 04:17:17,259 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/data/f7b66cd17/84f91a4273d54fe39d5d78a276f70701 [2023-11-19 04:17:17,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:17:17,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:17:17,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:17:17,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:17:17,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:17:17,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5b68f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17, skipping insertion in model container [2023-11-19 04:17:17,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,295 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:17:17,507 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2023-11-19 04:17:17,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:17:17,531 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:17:17,577 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2023-11-19 04:17:17,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:17:17,596 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:17:17,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17 WrapperNode [2023-11-19 04:17:17,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:17:17,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:17:17,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:17:17,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:17:17,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,662 INFO L138 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2023-11-19 04:17:17,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:17:17,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:17:17,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:17:17,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:17:17,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:17:17,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:17:17,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:17:17,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:17:17,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (1/1) ... [2023-11-19 04:17:17,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:17:17,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:17:17,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:17:17,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:17:17,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:17:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:17:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:17:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 04:17:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:17:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:17:17,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:17:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 04:17:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:17:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:17:17,994 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:17:18,007 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:17:18,325 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:17:18,332 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:17:18,333 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 04:17:18,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:17:18 BoogieIcfgContainer [2023-11-19 04:17:18,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:17:18,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:17:18,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:17:18,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:17:18,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:17:17" (1/3) ... [2023-11-19 04:17:18,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542284c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:17:18, skipping insertion in model container [2023-11-19 04:17:18,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:17" (2/3) ... [2023-11-19 04:17:18,346 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542284c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:17:18, skipping insertion in model container [2023-11-19 04:17:18,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:17:18" (3/3) ... [2023-11-19 04:17:18,348 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2023-11-19 04:17:18,370 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:17:18,371 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:17:18,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:17:18,428 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72ee9b70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:17:18,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:17:18,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 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) [2023-11-19 04:17:18,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:17:18,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:17:18,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:17:18,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:17:18,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:17:18,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2023-11-19 04:17:18,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:17:18,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500149786] [2023-11-19 04:17:18,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:17:18,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:17:18,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:17:18,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:17:18,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:17:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:17:18,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:17:18,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:17:18,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:17:18,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:17:18,619 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:17:18,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500149786] [2023-11-19 04:17:18,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500149786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:17:18,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:17:18,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:17:18,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608622122] [2023-11-19 04:17:18,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:17:18,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:17:18,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:17:18,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:17:18,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:17:18,671 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-11-19 04:17:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:17:18,686 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2023-11-19 04:17:18,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:17:18,689 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2023-11-19 04:17:18,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:17:18,697 INFO L225 Difference]: With dead ends: 48 [2023-11-19 04:17:18,697 INFO L226 Difference]: Without dead ends: 22 [2023-11-19 04:17:18,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:17:18,707 INFO L413 NwaCegarLoop]: 30 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, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:17:18,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:17:18,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-19 04:17:18,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-19 04:17:18,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2023-11-19 04:17:18,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2023-11-19 04:17:18,757 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2023-11-19 04:17:18,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:17:18,758 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2023-11-19 04:17:18,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2023-11-19 04:17:18,758 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-11-19 04:17:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:17:18,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:17:18,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:17:18,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:17:18,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:17:18,968 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:17:18,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:17:18,968 INFO L85 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2023-11-19 04:17:18,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:17:18,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501898627] [2023-11-19 04:17:18,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:17:18,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:17:18,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:17:18,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:17:18,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:17:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:17:19,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 04:17:19,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:17:19,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:17:19,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:17:19,312 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:17:19,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501898627] [2023-11-19 04:17:19,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501898627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:17:19,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:17:19,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:17:19,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4615196] [2023-11-19 04:17:19,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:17:19,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:17:19,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:17:19,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:17:19,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:17:19,316 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-19 04:17:19,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:17:19,463 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2023-11-19 04:17:19,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:17:19,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2023-11-19 04:17:19,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:17:19,465 INFO L225 Difference]: With dead ends: 34 [2023-11-19 04:17:19,465 INFO L226 Difference]: Without dead ends: 20 [2023-11-19 04:17:19,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:17:19,468 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 20 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:17:19,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 41 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:17:19,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-19 04:17:19,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-19 04:17:19,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 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) [2023-11-19 04:17:19,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2023-11-19 04:17:19,475 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2023-11-19 04:17:19,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:17:19,475 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2023-11-19 04:17:19,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2023-11-19 04:17:19,476 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-11-19 04:17:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:17:19,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:17:19,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:17:19,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-19 04:17:19,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:17:19,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:17:19,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:17:19,682 INFO L85 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2023-11-19 04:17:19,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:17:19,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535871971] [2023-11-19 04:17:19,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:17:19,683 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:17:19,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:17:19,685 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:17:19,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:17:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:17:19,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:17:19,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:17:19,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:17:19,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:17:19,962 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:17:19,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535871971] [2023-11-19 04:17:19,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535871971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:17:19,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:17:19,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:17:19,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190800459] [2023-11-19 04:17:19,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:17:19,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:17:19,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:17:19,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:17:19,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:17:19,966 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2023-11-19 04:17:20,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:17:20,206 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2023-11-19 04:17:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:17:20,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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 [2023-11-19 04:17:20,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:17:20,209 INFO L225 Difference]: With dead ends: 23 [2023-11-19 04:17:20,209 INFO L226 Difference]: Without dead ends: 20 [2023-11-19 04:17:20,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:17:20,211 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 25 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:17:20,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 37 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:17:20,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-19 04:17:20,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-19 04:17:20,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 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) [2023-11-19 04:17:20,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2023-11-19 04:17:20,228 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2023-11-19 04:17:20,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:17:20,230 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2023-11-19 04:17:20,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2023-11-19 04:17:20,231 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2023-11-19 04:17:20,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 04:17:20,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:17:20,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:17:20,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:17:20,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:17:20,437 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:17:20,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:17:20,438 INFO L85 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2023-11-19 04:17:20,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:17:20,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114415065] [2023-11-19 04:17:20,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:17:20,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:17:20,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:17:20,443 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:17:20,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 04:17:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:17:20,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 04:17:20,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:17:20,589 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 [2023-11-19 04:17:20,825 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-19 04:17:20,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2023-11-19 04:17:21,214 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 04:17:21,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 29 [2023-11-19 04:17:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:17:21,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:17:21,416 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:17:21,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114415065] [2023-11-19 04:17:21,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114415065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:17:21,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:17:21,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 04:17:21,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110863260] [2023-11-19 04:17:21,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:17:21,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 04:17:21,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:17:21,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 04:17:21,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:17:21,420 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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) [2023-11-19 04:17:22,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:17:22,311 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2023-11-19 04:17:22,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 04:17:22,312 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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 19 [2023-11-19 04:17:22,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:17:22,313 INFO L225 Difference]: With dead ends: 20 [2023-11-19 04:17:22,313 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:17:22,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-11-19 04:17:22,315 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 25 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:17:22,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 42 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:17:22,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:17:22,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:17:22,323 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) [2023-11-19 04:17:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:17:22,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2023-11-19 04:17:22,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:17:22,325 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:17:22,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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) [2023-11-19 04:17:22,329 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:17:22,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:17:22,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:17:22,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:17:22,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:17:22,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:17:22,689 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 48) no Hoare annotation was computed. [2023-11-19 04:17:22,689 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2023-11-19 04:17:22,690 INFO L895 garLoopResultBuilder]: At program point L60-2(lines 60 64) the Hoare annotation is: (let ((.cse2 (fp.neg (_ +zero 8 24)))) (and (exists ((|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_11| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_10| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_10|) (_ bv0 32)))) (let ((.cse0 (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (and (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= .cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_11|) (_ bv0 32))) (= .cse2 .cse0))))) (exists ((|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_11| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_10| (_ BitVec 32))) (let ((.cse4 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_10|) (_ bv0 32)))) (let ((.cse3 (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4)))) (and (= |ULTIMATE.start_round_float_#res#1| .cse3) (= .cse4 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_11|) (_ bv0 32))) (= .cse2 .cse3))))) |ULTIMATE.start_main_#t~short9#1| (exists ((|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_11| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_10| (_ BitVec 32))) (let ((.cse6 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_10|) (_ bv0 32)))) (let ((.cse5 (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6)))) (and (= |ULTIMATE.start_main_~res~0#1| .cse5) (= .cse6 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_11|) (_ bv0 32))) (= .cse2 .cse5))))))) [2023-11-19 04:17:22,690 INFO L899 garLoopResultBuilder]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2023-11-19 04:17:22,691 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2023-11-19 04:17:22,691 INFO L895 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start_round_float_~x#1|) [2023-11-19 04:17:22,691 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-11-19 04:17:22,691 INFO L899 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2023-11-19 04:17:22,691 INFO L899 garLoopResultBuilder]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2023-11-19 04:17:22,692 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 69 87) no Hoare annotation was computed. [2023-11-19 04:17:22,692 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 04:17:22,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 04:17:22,692 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 41) no Hoare annotation was computed. [2023-11-19 04:17:22,692 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2023-11-19 04:17:22,693 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2023-11-19 04:17:22,693 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2023-11-19 04:17:22,693 INFO L895 garLoopResultBuilder]: At program point L49-1(lines 49 53) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((v_subst_1 (_ BitVec 32))) (and (= .cse0 (fp ((_ extract 31 31) v_subst_1) ((_ extract 30 23) v_subst_1) ((_ extract 22 0) v_subst_1))) (= (bvadd |ULTIMATE.start_round_float_~exponent_less_127~0#1| (_ bv127 32)) (bvlshr (bvand v_subst_1 (_ bv2139095040 32)) (_ bv23 32))))) (= (fp ((_ extract 31 31) |ULTIMATE.start_round_float_~w~0#1|) ((_ extract 30 23) |ULTIMATE.start_round_float_~w~0#1|) ((_ extract 22 0) |ULTIMATE.start_round_float_~w~0#1|)) .cse0) (exists ((|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_11| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_10| (_ BitVec 32))) (let ((.cse2 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_10|) (_ bv0 32)))) (let ((.cse1 (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))) (and (= .cse1 |ULTIMATE.start_round_float_~x#1|) (= .cse2 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_11|) (_ bv0 32))) (= .cse0 .cse1))))))) [2023-11-19 04:17:22,694 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2023-11-19 04:17:22,694 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:17:22,694 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:17:22,694 INFO L899 garLoopResultBuilder]: For program point round_float_returnLabel#1(lines 14 55) no Hoare annotation was computed. [2023-11-19 04:17:22,694 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2023-11-19 04:17:22,694 INFO L899 garLoopResultBuilder]: For program point __signbit_float_returnLabel#1(lines 57 67) no Hoare annotation was computed. [2023-11-19 04:17:22,695 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 47) no Hoare annotation was computed. [2023-11-19 04:17:22,695 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 37) no Hoare annotation was computed. [2023-11-19 04:17:22,699 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 04:17:22,702 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:17:22,709 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2023-11-19 04:17:22,717 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: ~fp.neg~32(~Pluszero~32()) == ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0]) && ~bvadd~32(~exponent_less_127~0, 127bv32) == ~bvlshr~32(~bvand~32(v_subst_1, 2139095040bv32), 23bv32)) could not be translated [2023-11-19 04:17:22,719 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.boogie.ast.BitVectorAccessExpression cannot be cast to class de.uni_freiburg.informatik.ultimate.boogie.ast.BitvecLiteral (de.uni_freiburg.informatik.ultimate.boogie.ast.BitVectorAccessExpression and de.uni_freiburg.informatik.ultimate.boogie.ast.BitvecLiteral are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @619bfe29) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateFunctionApplication(CACSL2BoogieBacktranslator.java:1188) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpression(CACSL2BoogieBacktranslator.java:1044) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateBinaryExpression(CACSL2BoogieBacktranslator.java:1095) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpression(CACSL2BoogieBacktranslator.java:1034) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateBinaryExpression(CACSL2BoogieBacktranslator.java:1096) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpression(CACSL2BoogieBacktranslator.java:1034) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateBinaryExpression(CACSL2BoogieBacktranslator.java:1095) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpression(CACSL2BoogieBacktranslator.java:1034) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpressionWithContext(CACSL2BoogieBacktranslator.java:950) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateExpressionWithContext(CACSL2BoogieBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionWithContext(ModelTranslationContainer.java:101) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionWithContext(ModelTranslationContainer.java:101) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionWithContext(ModelTranslationContainer.java:101) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionWithContext(ModelTranslationContainer.java:101) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionWithContextToString(ModelTranslationContainer.java:91) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.BacktranslationService.translateExpressionWithContextToString(BacktranslationService.java:98) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.(InvariantResult.java:47) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:454) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-19 04:17:22,723 INFO L158 Benchmark]: Toolchain (without parser) took 5460.62ms. Allocated memory was 79.7MB in the beginning and 130.0MB in the end (delta: 50.3MB). Free memory was 55.7MB in the beginning and 86.8MB in the end (delta: -31.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-11-19 04:17:22,723 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 79.7MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:17:22,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.48ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 44.0MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:17:22,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.23ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 42.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:17:22,725 INFO L158 Benchmark]: Boogie Preprocessor took 61.70ms. Allocated memory is still 79.7MB. Free memory was 42.2MB in the beginning and 40.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:17:22,726 INFO L158 Benchmark]: RCFGBuilder took 611.06ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 40.3MB in the beginning and 73.8MB in the end (delta: -33.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-11-19 04:17:22,726 INFO L158 Benchmark]: TraceAbstraction took 4382.18ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 73.1MB in the beginning and 86.8MB in the end (delta: -13.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-11-19 04:17:22,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 79.7MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.48ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 44.0MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.23ms. Allocated memory is still 79.7MB. Free memory was 43.8MB in the beginning and 42.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.70ms. Allocated memory is still 79.7MB. Free memory was 42.2MB in the beginning and 40.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.06ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 40.3MB in the beginning and 73.8MB in the end (delta: -33.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4382.18ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 73.1MB in the beginning and 86.8MB in the end (delta: -13.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_subst_1 : bv32 :: ~fp.neg~32(~Pluszero~32()) == ~fp~32(v_subst_1[31:31], v_subst_1[30:23], v_subst_1[22:0]) && ~bvadd~32(~exponent_less_127~0, 127bv32) == ~bvlshr~32(~bvand~32(v_subst_1, 2139095040bv32), 23bv32)) could not be translated * 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: 82]: 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, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 150 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 62 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 24, 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: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 262 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 90 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 19 QuantifiedInterpolants, 659 SizeOfPredicates, 24 NumberOfNonLiveVariables, 186 ConjunctsInSsa, 43 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 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: null - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.boogie.ast.BitVectorAccessExpression cannot be cast to class de.uni_freiburg.informatik.ultimate.boogie.ast.BitvecLiteral (de.uni_freiburg.informatik.ultimate.boogie.ast.BitVectorAccessExpression and de.uni_freiburg.informatik.ultimate.boogie.ast.BitvecLiteral are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @619bfe29) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ClassCastException: class de.uni_freiburg.informatik.ultimate.boogie.ast.BitVectorAccessExpression cannot be cast to class de.uni_freiburg.informatik.ultimate.boogie.ast.BitvecLiteral (de.uni_freiburg.informatik.ultimate.boogie.ast.BitVectorAccessExpression and de.uni_freiburg.informatik.ultimate.boogie.ast.BitvecLiteral are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @619bfe29): de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator.translateFunctionApplication(CACSL2BoogieBacktranslator.java:1188) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 04:17:22,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dcff93f-b7cb-4a16-8433-4e263096472a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.boogie.ast.BitVectorAccessExpression cannot be cast to class de.uni_freiburg.informatik.ultimate.boogie.ast.BitvecLiteral (de.uni_freiburg.informatik.ultimate.boogie.ast.BitVectorAccessExpression and de.uni_freiburg.informatik.ultimate.boogie.ast.BitvecLiteral are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @619bfe29)