./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --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 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:55:40,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:55:40,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:55:40,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:55:40,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:55:40,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:55:40,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:55:40,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:55:40,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:55:40,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:55:40,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:55:40,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:55:40,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:55:40,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:55:40,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:55:40,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:55:40,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:55:40,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:55:40,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:55:40,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:55:40,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:55:40,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:55:40,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:55:40,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:55:40,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:55:40,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:55:40,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:55:40,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:55:40,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:55:40,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:55:40,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:55:40,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:55:40,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:55:40,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:55:40,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:55:40,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:55:40,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:55:40,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:55:40,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:55:40,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:55:40,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:55:40,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:55:40,711 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:55:40,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:55:40,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:55:40,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:55:40,714 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:55:40,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:55:40,714 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:55:40,715 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:55:40,715 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:55:40,715 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:55:40,716 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:55:40,717 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:55:40,717 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:55:40,717 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:55:40,717 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:55:40,717 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:55:40,718 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:55:40,718 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:55:40,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:55:40,719 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:55:40,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:55:40,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:55:40,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:55:40,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:55:40,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:55:40,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:55:40,720 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:55:40,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:55:40,721 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:55:40,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:55:40,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:55:40,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:55:40,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:55:40,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:55:40,723 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:55:40,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:55:40,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:55:40,723 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:55:40,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:55:40,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:55:40,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:55:40,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d [2022-11-03 01:55:41,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:55:41,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:55:41,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:55:41,196 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:55:41,197 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:55:41,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2022-11-03 01:55:41,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/data/8bf24542e/686a951ac8324d9d8646ba89420db0f1/FLAG72c2cffb2 [2022-11-03 01:55:41,854 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:55:41,854 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2022-11-03 01:55:41,863 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/data/8bf24542e/686a951ac8324d9d8646ba89420db0f1/FLAG72c2cffb2 [2022-11-03 01:55:42,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/data/8bf24542e/686a951ac8324d9d8646ba89420db0f1 [2022-11-03 01:55:42,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:55:42,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:55:42,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:55:42,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:55:42,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:55:42,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69afb6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42, skipping insertion in model container [2022-11-03 01:55:42,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:55:42,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:55:42,447 WARN L230 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_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2022-11-03 01:55:42,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:55:42,469 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:55:42,484 WARN L230 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_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2022-11-03 01:55:42,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:55:42,503 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:55:42,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42 WrapperNode [2022-11-03 01:55:42,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:55:42,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:55:42,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:55:42,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:55:42,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,554 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-11-03 01:55:42,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:55:42,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:55:42,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:55:42,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:55:42,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,581 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:55:42,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:55:42,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:55:42,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:55:42,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (1/1) ... [2022-11-03 01:55:42,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:55:42,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:42,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:55:42,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:55:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:55:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:55:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:55:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:55:42,759 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:55:42,762 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:55:42,879 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:55:42,907 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:55:42,907 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 01:55:42,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:42 BoogieIcfgContainer [2022-11-03 01:55:42,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:55:42,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:55:42,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:55:42,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:55:42,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:55:42" (1/3) ... [2022-11-03 01:55:42,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2504a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:55:42, skipping insertion in model container [2022-11-03 01:55:42,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:42" (2/3) ... [2022-11-03 01:55:42,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2504a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:55:42, skipping insertion in model container [2022-11-03 01:55:42,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:42" (3/3) ... [2022-11-03 01:55:42,929 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2022-11-03 01:55:42,954 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:55:42,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:55:43,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:55:43,054 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=LoopsAndPotentialCycles, 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;@2c34361d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:55:43,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:55:43,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-11-03 01:55:43,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-03 01:55:43,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:43,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-03 01:55:43,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:43,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash 47251, now seen corresponding path program 1 times [2022-11-03 01:55:43,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:43,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406137040] [2022-11-03 01:55:43,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:43,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:55:43,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 01:55:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:55:43,304 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 01:55:43,309 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 01:55:43,311 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:55:43,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:55:43,320 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 01:55:43,327 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:55:43,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:55:43 BoogieIcfgContainer [2022-11-03 01:55:43,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:55:43,360 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:55:43,360 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:55:43,360 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:55:43,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:42" (3/4) ... [2022-11-03 01:55:43,365 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 01:55:43,365 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:55:43,368 INFO L158 Benchmark]: Toolchain (without parser) took 1153.86ms. Allocated memory is still 111.1MB. Free memory was 74.4MB in the beginning and 61.5MB in the end (delta: 12.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-03 01:55:43,369 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:55:43,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.30ms. Allocated memory is still 111.1MB. Free memory was 74.2MB in the beginning and 87.4MB in the end (delta: -13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 01:55:43,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.15ms. Allocated memory is still 111.1MB. Free memory was 87.4MB in the beginning and 85.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:55:43,374 INFO L158 Benchmark]: Boogie Preprocessor took 26.23ms. Allocated memory is still 111.1MB. Free memory was 85.8MB in the beginning and 85.0MB in the end (delta: 850.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:55:43,382 INFO L158 Benchmark]: RCFGBuilder took 325.98ms. Allocated memory is still 111.1MB. Free memory was 84.6MB in the beginning and 75.3MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 01:55:43,383 INFO L158 Benchmark]: TraceAbstraction took 443.12ms. Allocated memory is still 111.1MB. Free memory was 74.5MB in the beginning and 61.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 01:55:43,385 INFO L158 Benchmark]: Witness Printer took 6.27ms. Allocated memory is still 111.1MB. Free memory was 61.9MB in the beginning and 61.5MB in the end (delta: 378.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:55:43,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.30ms. Allocated memory is still 111.1MB. Free memory was 74.2MB in the beginning and 87.4MB in the end (delta: -13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.15ms. Allocated memory is still 111.1MB. Free memory was 87.4MB in the beginning and 85.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.23ms. Allocated memory is still 111.1MB. Free memory was 85.8MB in the beginning and 85.0MB in the end (delta: 850.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 325.98ms. Allocated memory is still 111.1MB. Free memory was 84.6MB in the beginning and 75.3MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 443.12ms. Allocated memory is still 111.1MB. Free memory was 74.5MB in the beginning and 61.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 6.27ms. Allocated memory is still 111.1MB. Free memory was 61.9MB in the beginning and 61.5MB in the end (delta: 378.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e8f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L16] CALL __VERIFIER_assert(r == 0.f) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 01:55:43,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/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_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --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 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:55:46,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:55:46,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:55:46,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:55:46,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:55:46,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:55:46,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:55:46,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:55:46,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:55:46,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:55:46,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:55:46,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:55:46,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:55:46,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:55:46,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:55:46,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:55:46,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:55:46,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:55:46,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:55:46,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:55:46,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:55:46,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:55:46,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:55:46,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:55:46,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:55:46,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:55:46,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:55:46,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:55:46,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:55:46,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:55:46,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:55:46,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:55:46,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:55:46,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:55:46,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:55:46,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:55:46,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:55:46,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:55:46,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:55:46,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:55:46,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:55:46,499 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 01:55:46,549 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:55:46,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:55:46,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:55:46,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:55:46,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:55:46,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:55:46,553 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:55:46,554 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:55:46,554 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:55:46,554 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:55:46,555 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:55:46,556 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:55:46,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:55:46,558 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:55:46,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:55:46,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:55:46,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:55:46,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:55:46,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:55:46,560 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 01:55:46,560 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 01:55:46,560 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 01:55:46,561 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:55:46,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:55:46,561 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:55:46,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:55:46,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:55:46,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 01:55:46,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:55:46,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:55:46,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:55:46,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:55:46,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:55:46,565 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 01:55:46,565 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 01:55:46,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:55:46,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:55:46,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 01:55:46,566 INFO L138 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_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d [2022-11-03 01:55:47,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:55:47,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:55:47,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:55:47,108 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:55:47,109 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:55:47,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2022-11-03 01:55:47,200 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/data/b4c651f83/d324eea124d04c5b935c33bf0f11d535/FLAG1d36910e7 [2022-11-03 01:55:47,830 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:55:47,831 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2022-11-03 01:55:47,839 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/data/b4c651f83/d324eea124d04c5b935c33bf0f11d535/FLAG1d36910e7 [2022-11-03 01:55:48,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/data/b4c651f83/d324eea124d04c5b935c33bf0f11d535 [2022-11-03 01:55:48,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:55:48,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:55:48,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:55:48,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:55:48,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:55:48,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6232e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48, skipping insertion in model container [2022-11-03 01:55:48,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:55:48,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:55:48,388 WARN L230 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_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2022-11-03 01:55:48,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:55:48,420 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:55:48,471 WARN L230 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_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2022-11-03 01:55:48,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:55:48,505 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:55:48,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48 WrapperNode [2022-11-03 01:55:48,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:55:48,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:55:48,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:55:48,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:55:48,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,555 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2022-11-03 01:55:48,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:55:48,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:55:48,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:55:48,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:55:48,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,605 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:55:48,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:55:48,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:55:48,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:55:48,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (1/1) ... [2022-11-03 01:55:48,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:55:48,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:48,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:55:48,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:55:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:55:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:55:48,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:55:48,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 01:55:48,821 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:55:48,823 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:55:49,284 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:55:49,291 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:55:49,291 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 01:55:49,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:49 BoogieIcfgContainer [2022-11-03 01:55:49,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:55:49,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:55:49,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:55:49,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:55:49,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:55:48" (1/3) ... [2022-11-03 01:55:49,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acce297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:55:49, skipping insertion in model container [2022-11-03 01:55:49,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:48" (2/3) ... [2022-11-03 01:55:49,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acce297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:55:49, skipping insertion in model container [2022-11-03 01:55:49,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:49" (3/3) ... [2022-11-03 01:55:49,307 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2022-11-03 01:55:49,330 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:55:49,330 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:55:49,413 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:55:49,425 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=LoopsAndPotentialCycles, 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;@517d9452, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:55:49,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:55:49,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:55:49,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 01:55:49,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:49,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 01:55:49,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:49,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:49,465 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-11-03 01:55:49,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:55:49,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837749722] [2022-11-03 01:55:49,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:49,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:55:49,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:55:49,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:55:49,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 01:55:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:49,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 01:55:49,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:49,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:55:49,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:55:49,954 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:55:49,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837749722] [2022-11-03 01:55:49,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837749722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:49,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:49,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:49,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036865578] [2022-11-03 01:55:49,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:49,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:55:49,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:55:49,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:55:50,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:55:50,003 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-03 01:55:50,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:50,182 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-11-03 01:55:50,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:55:50,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-03 01:55:50,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:50,193 INFO L225 Difference]: With dead ends: 13 [2022-11-03 01:55:50,193 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 01:55:50,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:55:50,210 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:50,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:55:50,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 01:55:50,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 01:55:50,236 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) [2022-11-03 01:55:50,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 01:55:50,237 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-11-03 01:55:50,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:50,238 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 01:55:50,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-03 01:55:50,238 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 01:55:50,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 01:55:50,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:55:50,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-03 01:55:50,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:55:50,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 01:55:50,492 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 01:55:50,492 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-03 01:55:50,492 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-03 01:55:50,492 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-03 01:55:50,493 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2022-11-03 01:55:50,493 INFO L895 garLoopResultBuilder]: At program point L17(lines 8 18) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-03 01:55:50,494 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-11-03 01:55:50,494 INFO L899 garLoopResultBuilder]: For program point L6-1(line 6) no Hoare annotation was computed. [2022-11-03 01:55:50,494 INFO L895 garLoopResultBuilder]: At program point L6-3(line 6) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-03 01:55:50,499 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 01:55:50,502 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:55:50,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 01:55:50,519 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 01:55:50,520 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 01:55:50,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 01:55:50,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:55:50 BoogieIcfgContainer [2022-11-03 01:55:50,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:55:50,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:55:50,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:55:50,523 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:55:50,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:49" (3/4) ... [2022-11-03 01:55:50,528 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 01:55:50,542 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-03 01:55:50,543 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 01:55:50,543 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 01:55:50,543 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:55:50,582 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 01:55:50,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:55:50,583 INFO L158 Benchmark]: Toolchain (without parser) took 2398.32ms. Allocated memory is still 65.0MB. Free memory was 44.1MB in the beginning and 30.5MB in the end (delta: 13.6MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2022-11-03 01:55:50,584 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 65.0MB. Free memory was 45.4MB in the beginning and 45.4MB in the end (delta: 56.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:55:50,585 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.63ms. Allocated memory is still 65.0MB. Free memory was 43.9MB in the beginning and 48.0MB in the end (delta: -4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 01:55:50,585 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.53ms. Allocated memory is still 65.0MB. Free memory was 47.8MB in the beginning and 46.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:55:50,586 INFO L158 Benchmark]: Boogie Preprocessor took 60.36ms. Allocated memory is still 65.0MB. Free memory was 46.4MB in the beginning and 45.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:55:50,586 INFO L158 Benchmark]: RCFGBuilder took 675.59ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 36.5MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 01:55:50,587 INFO L158 Benchmark]: TraceAbstraction took 1225.90ms. Allocated memory is still 65.0MB. Free memory was 35.8MB in the beginning and 32.9MB in the end (delta: 2.9MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-11-03 01:55:50,588 INFO L158 Benchmark]: Witness Printer took 59.91ms. Allocated memory is still 65.0MB. Free memory was 32.9MB in the beginning and 30.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 01:55:50,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 65.0MB. Free memory was 45.4MB in the beginning and 45.4MB in the end (delta: 56.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.63ms. Allocated memory is still 65.0MB. Free memory was 43.9MB in the beginning and 48.0MB in the end (delta: -4.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.53ms. Allocated memory is still 65.0MB. Free memory was 47.8MB in the beginning and 46.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.36ms. Allocated memory is still 65.0MB. Free memory was 46.4MB in the beginning and 45.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 675.59ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 36.5MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1225.90ms. Allocated memory is still 65.0MB. Free memory was 35.8MB in the beginning and 32.9MB in the end (delta: 2.9MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Witness Printer took 59.91ms. Allocated memory is still 65.0MB. Free memory was 32.9MB in the beginning and 30.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 6]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 14 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 6 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant [2022-11-03 01:55:50,608 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 01:55:50,609 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: cond == 1bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 8]: Loop Invariant [2022-11-03 01:55:50,610 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-03 01:55:50,610 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: cond == 1bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2022-11-03 01:55:50,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c751a29-13c0-4198-b0fa-f74a3c4dfb94/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE